1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_32BIT_OFF_T if !64BIT 6 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 7 select ARCH_HAS_FORTIFY_SOURCE 8 select ARCH_HAS_KCOV 9 select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) 10 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 11 select ARCH_HAS_UBSAN_SANITIZE_ALL 12 select ARCH_SUPPORTS_UPROBES 13 select ARCH_USE_BUILTIN_BSWAP 14 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 15 select ARCH_USE_QUEUED_RWLOCKS 16 select ARCH_USE_QUEUED_SPINLOCKS 17 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU 18 select ARCH_WANT_IPC_PARSE_VERSION 19 select BUILDTIME_TABLE_SORT 20 select CLONE_BACKWARDS 21 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 22 select CPU_PM if CPU_IDLE 23 select GENERIC_ATOMIC64 if !64BIT 24 select GENERIC_CLOCKEVENTS 25 select GENERIC_CMOS_UPDATE 26 select GENERIC_CPU_AUTOPROBE 27 select GENERIC_GETTIMEOFDAY 28 select GENERIC_IOMAP 29 select GENERIC_IRQ_PROBE 30 select GENERIC_IRQ_SHOW 31 select GENERIC_ISA_DMA if EISA 32 select GENERIC_LIB_ASHLDI3 33 select GENERIC_LIB_ASHRDI3 34 select GENERIC_LIB_CMPDI2 35 select GENERIC_LIB_LSHRDI3 36 select GENERIC_LIB_UCMPDI2 37 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 38 select GENERIC_SMP_IDLE_THREAD 39 select GENERIC_TIME_VSYSCALL 40 select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT 41 select HANDLE_DOMAIN_IRQ 42 select HAVE_ARCH_COMPILER_H 43 select HAVE_ARCH_JUMP_LABEL 44 select HAVE_ARCH_KGDB 45 select HAVE_ARCH_MMAP_RND_BITS if MMU 46 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 47 select HAVE_ARCH_SECCOMP_FILTER 48 select HAVE_ARCH_TRACEHOOK 49 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES 50 select HAVE_ASM_MODVERSIONS 51 select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS 52 select HAVE_CONTEXT_TRACKING 53 select HAVE_TIF_NOHZ 54 select HAVE_COPY_THREAD_TLS 55 select HAVE_C_RECORDMCOUNT 56 select HAVE_DEBUG_KMEMLEAK 57 select HAVE_DEBUG_STACKOVERFLOW 58 select HAVE_DMA_CONTIGUOUS 59 select HAVE_DYNAMIC_FTRACE 60 select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2 61 select HAVE_EXIT_THREAD 62 select HAVE_FAST_GUP 63 select HAVE_FTRACE_MCOUNT_RECORD 64 select HAVE_FUNCTION_GRAPH_TRACER 65 select HAVE_FUNCTION_TRACER 66 select HAVE_GCC_PLUGINS 67 select HAVE_GENERIC_VDSO 68 select HAVE_IDE 69 select HAVE_IOREMAP_PROT 70 select HAVE_IRQ_EXIT_ON_IRQ_STACK 71 select HAVE_IRQ_TIME_ACCOUNTING 72 select HAVE_KPROBES 73 select HAVE_KRETPROBES 74 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 75 select HAVE_MOD_ARCH_SPECIFIC 76 select HAVE_NMI 77 select HAVE_OPROFILE 78 select HAVE_PERF_EVENTS 79 select HAVE_REGS_AND_STACK_ACCESS_API 80 select HAVE_RSEQ 81 select HAVE_SPARSE_SYSCALL_NR 82 select HAVE_STACKPROTECTOR 83 select HAVE_SYSCALL_TRACEPOINTS 84 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 85 select IRQ_FORCED_THREADING 86 select ISA if EISA 87 select MODULES_USE_ELF_REL if MODULES 88 select MODULES_USE_ELF_RELA if MODULES && 64BIT 89 select PERF_USE_VMALLOC 90 select RTC_LIB 91 select SYSCTL_EXCEPTION_TRACE 92 select VIRT_TO_BUS 93 94config MIPS_FIXUP_BIGPHYS_ADDR 95 bool 96 97menu "Machine selection" 98 99choice 100 prompt "System type" 101 default MIPS_GENERIC 102 103config MIPS_GENERIC 104 bool "Generic board-agnostic MIPS kernel" 105 select BOOT_RAW 106 select BUILTIN_DTB 107 select CEVT_R4K 108 select CLKSRC_MIPS_GIC 109 select COMMON_CLK 110 select CPU_MIPSR2_IRQ_EI 111 select CPU_MIPSR2_IRQ_VI 112 select CSRC_R4K 113 select DMA_PERDEV_COHERENT 114 select HAVE_PCI 115 select IRQ_MIPS_CPU 116 select MIPS_AUTO_PFN_OFFSET 117 select MIPS_CPU_SCACHE 118 select MIPS_GIC 119 select MIPS_L1_CACHE_SHIFT_7 120 select NO_EXCEPT_FILL 121 select PCI_DRIVERS_GENERIC 122 select SMP_UP if SMP 123 select SWAP_IO_SPACE 124 select SYS_HAS_CPU_MIPS32_R1 125 select SYS_HAS_CPU_MIPS32_R2 126 select SYS_HAS_CPU_MIPS32_R6 127 select SYS_HAS_CPU_MIPS64_R1 128 select SYS_HAS_CPU_MIPS64_R2 129 select SYS_HAS_CPU_MIPS64_R6 130 select SYS_SUPPORTS_32BIT_KERNEL 131 select SYS_SUPPORTS_64BIT_KERNEL 132 select SYS_SUPPORTS_BIG_ENDIAN 133 select SYS_SUPPORTS_HIGHMEM 134 select SYS_SUPPORTS_LITTLE_ENDIAN 135 select SYS_SUPPORTS_MICROMIPS 136 select SYS_SUPPORTS_MIPS16 137 select SYS_SUPPORTS_MIPS_CPS 138 select SYS_SUPPORTS_MULTITHREADING 139 select SYS_SUPPORTS_RELOCATABLE 140 select SYS_SUPPORTS_SMARTMIPS 141 select UHI_BOOT 142 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 143 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 144 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 145 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 146 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 147 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 148 select USE_OF 149 help 150 Select this to build a kernel which aims to support multiple boards, 151 generally using a flattened device tree passed from the bootloader 152 using the boot protocol defined in the UHI (Unified Hosting 153 Interface) specification. 154 155config MIPS_ALCHEMY 156 bool "Alchemy processor based machines" 157 select PHYS_ADDR_T_64BIT 158 select CEVT_R4K 159 select CSRC_R4K 160 select IRQ_MIPS_CPU 161 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 162 select MIPS_FIXUP_BIGPHYS_ADDR if PCI 163 select SYS_HAS_CPU_MIPS32_R1 164 select SYS_SUPPORTS_32BIT_KERNEL 165 select SYS_SUPPORTS_APM_EMULATION 166 select GPIOLIB 167 select SYS_SUPPORTS_ZBOOT 168 select COMMON_CLK 169 170config AR7 171 bool "Texas Instruments AR7" 172 select BOOT_ELF32 173 select DMA_NONCOHERENT 174 select CEVT_R4K 175 select CSRC_R4K 176 select IRQ_MIPS_CPU 177 select NO_EXCEPT_FILL 178 select SWAP_IO_SPACE 179 select SYS_HAS_CPU_MIPS32_R1 180 select SYS_HAS_EARLY_PRINTK 181 select SYS_SUPPORTS_32BIT_KERNEL 182 select SYS_SUPPORTS_LITTLE_ENDIAN 183 select SYS_SUPPORTS_MIPS16 184 select SYS_SUPPORTS_ZBOOT_UART16550 185 select GPIOLIB 186 select VLYNQ 187 select HAVE_CLK 188 help 189 Support for the Texas Instruments AR7 System-on-a-Chip 190 family: TNETD7100, 7200 and 7300. 191 192config ATH25 193 bool "Atheros AR231x/AR531x SoC support" 194 select CEVT_R4K 195 select CSRC_R4K 196 select DMA_NONCOHERENT 197 select IRQ_MIPS_CPU 198 select IRQ_DOMAIN 199 select SYS_HAS_CPU_MIPS32_R1 200 select SYS_SUPPORTS_BIG_ENDIAN 201 select SYS_SUPPORTS_32BIT_KERNEL 202 select SYS_HAS_EARLY_PRINTK 203 help 204 Support for Atheros AR231x and Atheros AR531x based boards 205 206config ATH79 207 bool "Atheros AR71XX/AR724X/AR913X based boards" 208 select ARCH_HAS_RESET_CONTROLLER 209 select BOOT_RAW 210 select CEVT_R4K 211 select CSRC_R4K 212 select DMA_NONCOHERENT 213 select GPIOLIB 214 select PINCTRL 215 select HAVE_CLK 216 select COMMON_CLK 217 select CLKDEV_LOOKUP 218 select IRQ_MIPS_CPU 219 select SYS_HAS_CPU_MIPS32_R2 220 select SYS_HAS_EARLY_PRINTK 221 select SYS_SUPPORTS_32BIT_KERNEL 222 select SYS_SUPPORTS_BIG_ENDIAN 223 select SYS_SUPPORTS_MIPS16 224 select SYS_SUPPORTS_ZBOOT_UART_PROM 225 select USE_OF 226 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 227 help 228 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 229 230config BMIPS_GENERIC 231 bool "Broadcom Generic BMIPS kernel" 232 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 233 select ARCH_HAS_PHYS_TO_DMA 234 select BOOT_RAW 235 select NO_EXCEPT_FILL 236 select USE_OF 237 select CEVT_R4K 238 select CSRC_R4K 239 select SYNC_R4K 240 select COMMON_CLK 241 select BCM6345_L1_IRQ 242 select BCM7038_L1_IRQ 243 select BCM7120_L2_IRQ 244 select BRCMSTB_L2_IRQ 245 select IRQ_MIPS_CPU 246 select DMA_NONCOHERENT 247 select SYS_SUPPORTS_32BIT_KERNEL 248 select SYS_SUPPORTS_LITTLE_ENDIAN 249 select SYS_SUPPORTS_BIG_ENDIAN 250 select SYS_SUPPORTS_HIGHMEM 251 select SYS_HAS_CPU_BMIPS32_3300 252 select SYS_HAS_CPU_BMIPS4350 253 select SYS_HAS_CPU_BMIPS4380 254 select SYS_HAS_CPU_BMIPS5000 255 select SWAP_IO_SPACE 256 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 257 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 258 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 259 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 260 select HARDIRQS_SW_RESEND 261 help 262 Build a generic DT-based kernel image that boots on select 263 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 264 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 265 must be set appropriately for your board. 266 267config BCM47XX 268 bool "Broadcom BCM47XX based boards" 269 select BOOT_RAW 270 select CEVT_R4K 271 select CSRC_R4K 272 select DMA_NONCOHERENT 273 select HAVE_PCI 274 select IRQ_MIPS_CPU 275 select SYS_HAS_CPU_MIPS32_R1 276 select NO_EXCEPT_FILL 277 select SYS_SUPPORTS_32BIT_KERNEL 278 select SYS_SUPPORTS_LITTLE_ENDIAN 279 select SYS_SUPPORTS_MIPS16 280 select SYS_SUPPORTS_ZBOOT 281 select SYS_HAS_EARLY_PRINTK 282 select USE_GENERIC_EARLY_PRINTK_8250 283 select GPIOLIB 284 select LEDS_GPIO_REGISTER 285 select BCM47XX_NVRAM 286 select BCM47XX_SPROM 287 select BCM47XX_SSB if !BCM47XX_BCMA 288 help 289 Support for BCM47XX based boards 290 291config BCM63XX 292 bool "Broadcom BCM63XX based boards" 293 select BOOT_RAW 294 select CEVT_R4K 295 select CSRC_R4K 296 select SYNC_R4K 297 select DMA_NONCOHERENT 298 select IRQ_MIPS_CPU 299 select SYS_SUPPORTS_32BIT_KERNEL 300 select SYS_SUPPORTS_BIG_ENDIAN 301 select SYS_HAS_EARLY_PRINTK 302 select SWAP_IO_SPACE 303 select GPIOLIB 304 select HAVE_CLK 305 select MIPS_L1_CACHE_SHIFT_4 306 select CLKDEV_LOOKUP 307 help 308 Support for BCM63XX based boards 309 310config MIPS_COBALT 311 bool "Cobalt Server" 312 select CEVT_R4K 313 select CSRC_R4K 314 select CEVT_GT641XX 315 select DMA_NONCOHERENT 316 select FORCE_PCI 317 select I8253 318 select I8259 319 select IRQ_MIPS_CPU 320 select IRQ_GT641XX 321 select PCI_GT64XXX_PCI0 322 select SYS_HAS_CPU_NEVADA 323 select SYS_HAS_EARLY_PRINTK 324 select SYS_SUPPORTS_32BIT_KERNEL 325 select SYS_SUPPORTS_64BIT_KERNEL 326 select SYS_SUPPORTS_LITTLE_ENDIAN 327 select USE_GENERIC_EARLY_PRINTK_8250 328 329config MACH_DECSTATION 330 bool "DECstations" 331 select BOOT_ELF32 332 select CEVT_DS1287 333 select CEVT_R4K if CPU_R4X00 334 select CSRC_IOASIC 335 select CSRC_R4K if CPU_R4X00 336 select CPU_DADDI_WORKAROUNDS if 64BIT 337 select CPU_R4000_WORKAROUNDS if 64BIT 338 select CPU_R4400_WORKAROUNDS if 64BIT 339 select DMA_NONCOHERENT 340 select NO_IOPORT_MAP 341 select IRQ_MIPS_CPU 342 select SYS_HAS_CPU_R3000 343 select SYS_HAS_CPU_R4X00 344 select SYS_SUPPORTS_32BIT_KERNEL 345 select SYS_SUPPORTS_64BIT_KERNEL 346 select SYS_SUPPORTS_LITTLE_ENDIAN 347 select SYS_SUPPORTS_128HZ 348 select SYS_SUPPORTS_256HZ 349 select SYS_SUPPORTS_1024HZ 350 select MIPS_L1_CACHE_SHIFT_4 351 help 352 This enables support for DEC's MIPS based workstations. For details 353 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 354 DECstation porting pages on <http://decstation.unix-ag.org/>. 355 356 If you have one of the following DECstation Models you definitely 357 want to choose R4xx0 for the CPU Type: 358 359 DECstation 5000/50 360 DECstation 5000/150 361 DECstation 5000/260 362 DECsystem 5900/260 363 364 otherwise choose R3000. 365 366config MACH_JAZZ 367 bool "Jazz family of machines" 368 select ARC_MEMORY 369 select ARC_PROMLIB 370 select ARCH_MIGHT_HAVE_PC_PARPORT 371 select ARCH_MIGHT_HAVE_PC_SERIO 372 select FW_ARC 373 select FW_ARC32 374 select ARCH_MAY_HAVE_PC_FDC 375 select CEVT_R4K 376 select CSRC_R4K 377 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 378 select GENERIC_ISA_DMA 379 select HAVE_PCSPKR_PLATFORM 380 select IRQ_MIPS_CPU 381 select I8253 382 select I8259 383 select ISA 384 select SYS_HAS_CPU_R4X00 385 select SYS_SUPPORTS_32BIT_KERNEL 386 select SYS_SUPPORTS_64BIT_KERNEL 387 select SYS_SUPPORTS_100HZ 388 help 389 This a family of machines based on the MIPS R4030 chipset which was 390 used by several vendors to build RISC/os and Windows NT workstations. 391 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 392 Olivetti M700-10 workstations. 393 394config MACH_INGENIC 395 bool "Ingenic SoC based machines" 396 select SYS_SUPPORTS_32BIT_KERNEL 397 select SYS_SUPPORTS_LITTLE_ENDIAN 398 select SYS_SUPPORTS_ZBOOT_UART16550 399 select CPU_SUPPORTS_HUGEPAGES 400 select DMA_NONCOHERENT 401 select IRQ_MIPS_CPU 402 select PINCTRL 403 select GPIOLIB 404 select COMMON_CLK 405 select GENERIC_IRQ_CHIP 406 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 407 select USE_OF 408 409config LANTIQ 410 bool "Lantiq based platforms" 411 select DMA_NONCOHERENT 412 select IRQ_MIPS_CPU 413 select CEVT_R4K 414 select CSRC_R4K 415 select SYS_HAS_CPU_MIPS32_R1 416 select SYS_HAS_CPU_MIPS32_R2 417 select SYS_SUPPORTS_BIG_ENDIAN 418 select SYS_SUPPORTS_32BIT_KERNEL 419 select SYS_SUPPORTS_MIPS16 420 select SYS_SUPPORTS_MULTITHREADING 421 select SYS_SUPPORTS_VPE_LOADER 422 select SYS_HAS_EARLY_PRINTK 423 select GPIOLIB 424 select SWAP_IO_SPACE 425 select BOOT_RAW 426 select CLKDEV_LOOKUP 427 select USE_OF 428 select PINCTRL 429 select PINCTRL_LANTIQ 430 select ARCH_HAS_RESET_CONTROLLER 431 select RESET_CONTROLLER 432 433config MACH_LOONGSON32 434 bool "Loongson 32-bit family of machines" 435 select SYS_SUPPORTS_ZBOOT 436 help 437 This enables support for the Loongson-1 family of machines. 438 439 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 440 the Institute of Computing Technology (ICT), Chinese Academy of 441 Sciences (CAS). 442 443config MACH_LOONGSON2EF 444 bool "Loongson-2E/F family of machines" 445 select SYS_SUPPORTS_ZBOOT 446 help 447 This enables the support of early Loongson-2E/F family of machines. 448 449config MACH_LOONGSON64 450 bool "Loongson 64-bit family of machines" 451 select ARCH_SPARSEMEM_ENABLE 452 select ARCH_MIGHT_HAVE_PC_PARPORT 453 select ARCH_MIGHT_HAVE_PC_SERIO 454 select GENERIC_ISA_DMA_SUPPORT_BROKEN 455 select BOOT_ELF32 456 select BOARD_SCACHE 457 select CSRC_R4K 458 select CEVT_R4K 459 select CPU_HAS_WB 460 select FORCE_PCI 461 select ISA 462 select I8259 463 select IRQ_MIPS_CPU 464 select NO_EXCEPT_FILL 465 select NR_CPUS_DEFAULT_64 466 select USE_GENERIC_EARLY_PRINTK_8250 467 select PCI_DRIVERS_GENERIC 468 select SYS_HAS_CPU_LOONGSON64 469 select SYS_HAS_EARLY_PRINTK 470 select SYS_SUPPORTS_SMP 471 select SYS_SUPPORTS_HOTPLUG_CPU 472 select SYS_SUPPORTS_NUMA 473 select SYS_SUPPORTS_64BIT_KERNEL 474 select SYS_SUPPORTS_HIGHMEM 475 select SYS_SUPPORTS_LITTLE_ENDIAN 476 select SYS_SUPPORTS_ZBOOT 477 select ZONE_DMA32 478 select NUMA 479 select COMMON_CLK 480 select USE_OF 481 select BUILTIN_DTB 482 help 483 This enables the support of Loongson-2/3 family of machines. 484 485 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 486 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 487 and Loongson-2F which will be removed), developed by the Institute 488 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 489 490config MACH_PISTACHIO 491 bool "IMG Pistachio SoC based boards" 492 select BOOT_ELF32 493 select BOOT_RAW 494 select CEVT_R4K 495 select CLKSRC_MIPS_GIC 496 select COMMON_CLK 497 select CSRC_R4K 498 select DMA_NONCOHERENT 499 select GPIOLIB 500 select IRQ_MIPS_CPU 501 select MFD_SYSCON 502 select MIPS_CPU_SCACHE 503 select MIPS_GIC 504 select PINCTRL 505 select REGULATOR 506 select SYS_HAS_CPU_MIPS32_R2 507 select SYS_SUPPORTS_32BIT_KERNEL 508 select SYS_SUPPORTS_LITTLE_ENDIAN 509 select SYS_SUPPORTS_MIPS_CPS 510 select SYS_SUPPORTS_MULTITHREADING 511 select SYS_SUPPORTS_RELOCATABLE 512 select SYS_SUPPORTS_ZBOOT 513 select SYS_HAS_EARLY_PRINTK 514 select USE_GENERIC_EARLY_PRINTK_8250 515 select USE_OF 516 help 517 This enables support for the IMG Pistachio SoC platform. 518 519config MIPS_MALTA 520 bool "MIPS Malta board" 521 select ARCH_MAY_HAVE_PC_FDC 522 select ARCH_MIGHT_HAVE_PC_PARPORT 523 select ARCH_MIGHT_HAVE_PC_SERIO 524 select BOOT_ELF32 525 select BOOT_RAW 526 select BUILTIN_DTB 527 select CEVT_R4K 528 select CLKSRC_MIPS_GIC 529 select COMMON_CLK 530 select CSRC_R4K 531 select DMA_MAYBE_COHERENT 532 select GENERIC_ISA_DMA 533 select HAVE_PCSPKR_PLATFORM 534 select HAVE_PCI 535 select I8253 536 select I8259 537 select IRQ_MIPS_CPU 538 select MIPS_BONITO64 539 select MIPS_CPU_SCACHE 540 select MIPS_GIC 541 select MIPS_L1_CACHE_SHIFT_6 542 select MIPS_MSC 543 select PCI_GT64XXX_PCI0 544 select SMP_UP if SMP 545 select SWAP_IO_SPACE 546 select SYS_HAS_CPU_MIPS32_R1 547 select SYS_HAS_CPU_MIPS32_R2 548 select SYS_HAS_CPU_MIPS32_R3_5 549 select SYS_HAS_CPU_MIPS32_R5 550 select SYS_HAS_CPU_MIPS32_R6 551 select SYS_HAS_CPU_MIPS64_R1 552 select SYS_HAS_CPU_MIPS64_R2 553 select SYS_HAS_CPU_MIPS64_R6 554 select SYS_HAS_CPU_NEVADA 555 select SYS_HAS_CPU_RM7000 556 select SYS_SUPPORTS_32BIT_KERNEL 557 select SYS_SUPPORTS_64BIT_KERNEL 558 select SYS_SUPPORTS_BIG_ENDIAN 559 select SYS_SUPPORTS_HIGHMEM 560 select SYS_SUPPORTS_LITTLE_ENDIAN 561 select SYS_SUPPORTS_MICROMIPS 562 select SYS_SUPPORTS_MIPS16 563 select SYS_SUPPORTS_MIPS_CMP 564 select SYS_SUPPORTS_MIPS_CPS 565 select SYS_SUPPORTS_MULTITHREADING 566 select SYS_SUPPORTS_RELOCATABLE 567 select SYS_SUPPORTS_SMARTMIPS 568 select SYS_SUPPORTS_VPE_LOADER 569 select SYS_SUPPORTS_ZBOOT 570 select USE_OF 571 select ZONE_DMA32 if 64BIT 572 help 573 This enables support for the MIPS Technologies Malta evaluation 574 board. 575 576config MACH_PIC32 577 bool "Microchip PIC32 Family" 578 help 579 This enables support for the Microchip PIC32 family of platforms. 580 581 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 582 microcontrollers. 583 584config MACH_VR41XX 585 bool "NEC VR4100 series based machines" 586 select CEVT_R4K 587 select CSRC_R4K 588 select SYS_HAS_CPU_VR41XX 589 select SYS_SUPPORTS_MIPS16 590 select GPIOLIB 591 592config NXP_STB220 593 bool "NXP STB220 board" 594 select SOC_PNX833X 595 help 596 Support for NXP Semiconductors STB220 Development Board. 597 598config NXP_STB225 599 bool "NXP 225 board" 600 select SOC_PNX833X 601 select SOC_PNX8335 602 help 603 Support for NXP Semiconductors STB225 Development Board. 604 605config RALINK 606 bool "Ralink based machines" 607 select CEVT_R4K 608 select CSRC_R4K 609 select BOOT_RAW 610 select DMA_NONCOHERENT 611 select IRQ_MIPS_CPU 612 select USE_OF 613 select SYS_HAS_CPU_MIPS32_R1 614 select SYS_HAS_CPU_MIPS32_R2 615 select SYS_SUPPORTS_32BIT_KERNEL 616 select SYS_SUPPORTS_LITTLE_ENDIAN 617 select SYS_SUPPORTS_MIPS16 618 select SYS_HAS_EARLY_PRINTK 619 select CLKDEV_LOOKUP 620 select ARCH_HAS_RESET_CONTROLLER 621 select RESET_CONTROLLER 622 623config SGI_IP22 624 bool "SGI IP22 (Indy/Indigo2)" 625 select ARC_MEMORY 626 select ARC_PROMLIB 627 select FW_ARC 628 select FW_ARC32 629 select ARCH_MIGHT_HAVE_PC_SERIO 630 select BOOT_ELF32 631 select CEVT_R4K 632 select CSRC_R4K 633 select DEFAULT_SGI_PARTITION 634 select DMA_NONCOHERENT 635 select HAVE_EISA 636 select I8253 637 select I8259 638 select IP22_CPU_SCACHE 639 select IRQ_MIPS_CPU 640 select GENERIC_ISA_DMA_SUPPORT_BROKEN 641 select SGI_HAS_I8042 642 select SGI_HAS_INDYDOG 643 select SGI_HAS_HAL2 644 select SGI_HAS_SEEQ 645 select SGI_HAS_WD93 646 select SGI_HAS_ZILOG 647 select SWAP_IO_SPACE 648 select SYS_HAS_CPU_R4X00 649 select SYS_HAS_CPU_R5000 650 select SYS_HAS_EARLY_PRINTK 651 select SYS_SUPPORTS_32BIT_KERNEL 652 select SYS_SUPPORTS_64BIT_KERNEL 653 select SYS_SUPPORTS_BIG_ENDIAN 654 select MIPS_L1_CACHE_SHIFT_7 655 help 656 This are the SGI Indy, Challenge S and Indigo2, as well as certain 657 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 658 that runs on these, say Y here. 659 660config SGI_IP27 661 bool "SGI IP27 (Origin200/2000)" 662 select ARCH_HAS_PHYS_TO_DMA 663 select ARCH_SPARSEMEM_ENABLE 664 select FW_ARC 665 select FW_ARC64 666 select ARC_CMDLINE_ONLY 667 select BOOT_ELF64 668 select DEFAULT_SGI_PARTITION 669 select SYS_HAS_EARLY_PRINTK 670 select HAVE_PCI 671 select IRQ_MIPS_CPU 672 select IRQ_DOMAIN_HIERARCHY 673 select NR_CPUS_DEFAULT_64 674 select PCI_DRIVERS_GENERIC 675 select PCI_XTALK_BRIDGE 676 select SYS_HAS_CPU_R10000 677 select SYS_SUPPORTS_64BIT_KERNEL 678 select SYS_SUPPORTS_BIG_ENDIAN 679 select SYS_SUPPORTS_NUMA 680 select SYS_SUPPORTS_SMP 681 select MIPS_L1_CACHE_SHIFT_7 682 help 683 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 684 workstations. To compile a Linux kernel that runs on these, say Y 685 here. 686 687config SGI_IP28 688 bool "SGI IP28 (Indigo2 R10k)" 689 select ARC_MEMORY 690 select ARC_PROMLIB 691 select FW_ARC 692 select FW_ARC64 693 select ARCH_MIGHT_HAVE_PC_SERIO 694 select BOOT_ELF64 695 select CEVT_R4K 696 select CSRC_R4K 697 select DEFAULT_SGI_PARTITION 698 select DMA_NONCOHERENT 699 select GENERIC_ISA_DMA_SUPPORT_BROKEN 700 select IRQ_MIPS_CPU 701 select HAVE_EISA 702 select I8253 703 select I8259 704 select SGI_HAS_I8042 705 select SGI_HAS_INDYDOG 706 select SGI_HAS_HAL2 707 select SGI_HAS_SEEQ 708 select SGI_HAS_WD93 709 select SGI_HAS_ZILOG 710 select SWAP_IO_SPACE 711 select SYS_HAS_CPU_R10000 712 select SYS_HAS_EARLY_PRINTK 713 select SYS_SUPPORTS_64BIT_KERNEL 714 select SYS_SUPPORTS_BIG_ENDIAN 715 select MIPS_L1_CACHE_SHIFT_7 716 help 717 This is the SGI Indigo2 with R10000 processor. To compile a Linux 718 kernel that runs on these, say Y here. 719 720config SGI_IP30 721 bool "SGI IP30 (Octane/Octane2)" 722 select ARCH_HAS_PHYS_TO_DMA 723 select FW_ARC 724 select FW_ARC64 725 select BOOT_ELF64 726 select CEVT_R4K 727 select CSRC_R4K 728 select SYNC_R4K if SMP 729 select ZONE_DMA32 730 select HAVE_PCI 731 select IRQ_MIPS_CPU 732 select IRQ_DOMAIN_HIERARCHY 733 select NR_CPUS_DEFAULT_2 734 select PCI_DRIVERS_GENERIC 735 select PCI_XTALK_BRIDGE 736 select SYS_HAS_EARLY_PRINTK 737 select SYS_HAS_CPU_R10000 738 select SYS_SUPPORTS_64BIT_KERNEL 739 select SYS_SUPPORTS_BIG_ENDIAN 740 select SYS_SUPPORTS_SMP 741 select MIPS_L1_CACHE_SHIFT_7 742 select ARC_MEMORY 743 help 744 These are the SGI Octane and Octane2 graphics workstations. To 745 compile a Linux kernel that runs on these, say Y here. 746 747config SGI_IP32 748 bool "SGI IP32 (O2)" 749 select ARC_MEMORY 750 select ARC_PROMLIB 751 select ARCH_HAS_PHYS_TO_DMA 752 select FW_ARC 753 select FW_ARC32 754 select BOOT_ELF32 755 select CEVT_R4K 756 select CSRC_R4K 757 select DMA_NONCOHERENT 758 select HAVE_PCI 759 select IRQ_MIPS_CPU 760 select R5000_CPU_SCACHE 761 select RM7000_CPU_SCACHE 762 select SYS_HAS_CPU_R5000 763 select SYS_HAS_CPU_R10000 if BROKEN 764 select SYS_HAS_CPU_RM7000 765 select SYS_HAS_CPU_NEVADA 766 select SYS_SUPPORTS_64BIT_KERNEL 767 select SYS_SUPPORTS_BIG_ENDIAN 768 help 769 If you want this kernel to run on SGI O2 workstation, say Y here. 770 771config SIBYTE_CRHINE 772 bool "Sibyte BCM91120C-CRhine" 773 select BOOT_ELF32 774 select SIBYTE_BCM1120 775 select SWAP_IO_SPACE 776 select SYS_HAS_CPU_SB1 777 select SYS_SUPPORTS_BIG_ENDIAN 778 select SYS_SUPPORTS_LITTLE_ENDIAN 779 780config SIBYTE_CARMEL 781 bool "Sibyte BCM91120x-Carmel" 782 select BOOT_ELF32 783 select SIBYTE_BCM1120 784 select SWAP_IO_SPACE 785 select SYS_HAS_CPU_SB1 786 select SYS_SUPPORTS_BIG_ENDIAN 787 select SYS_SUPPORTS_LITTLE_ENDIAN 788 789config SIBYTE_CRHONE 790 bool "Sibyte BCM91125C-CRhone" 791 select BOOT_ELF32 792 select SIBYTE_BCM1125 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 799config SIBYTE_RHONE 800 bool "Sibyte BCM91125E-Rhone" 801 select BOOT_ELF32 802 select SIBYTE_BCM1125H 803 select SWAP_IO_SPACE 804 select SYS_HAS_CPU_SB1 805 select SYS_SUPPORTS_BIG_ENDIAN 806 select SYS_SUPPORTS_LITTLE_ENDIAN 807 808config SIBYTE_SWARM 809 bool "Sibyte BCM91250A-SWARM" 810 select BOOT_ELF32 811 select HAVE_PATA_PLATFORM 812 select SIBYTE_SB1250 813 select SWAP_IO_SPACE 814 select SYS_HAS_CPU_SB1 815 select SYS_SUPPORTS_BIG_ENDIAN 816 select SYS_SUPPORTS_HIGHMEM 817 select SYS_SUPPORTS_LITTLE_ENDIAN 818 select ZONE_DMA32 if 64BIT 819 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 820 821config SIBYTE_LITTLESUR 822 bool "Sibyte BCM91250C2-LittleSur" 823 select BOOT_ELF32 824 select HAVE_PATA_PLATFORM 825 select SIBYTE_SB1250 826 select SWAP_IO_SPACE 827 select SYS_HAS_CPU_SB1 828 select SYS_SUPPORTS_BIG_ENDIAN 829 select SYS_SUPPORTS_HIGHMEM 830 select SYS_SUPPORTS_LITTLE_ENDIAN 831 select ZONE_DMA32 if 64BIT 832 833config SIBYTE_SENTOSA 834 bool "Sibyte BCM91250E-Sentosa" 835 select BOOT_ELF32 836 select SIBYTE_SB1250 837 select SWAP_IO_SPACE 838 select SYS_HAS_CPU_SB1 839 select SYS_SUPPORTS_BIG_ENDIAN 840 select SYS_SUPPORTS_LITTLE_ENDIAN 841 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 842 843config SIBYTE_BIGSUR 844 bool "Sibyte BCM91480B-BigSur" 845 select BOOT_ELF32 846 select NR_CPUS_DEFAULT_4 847 select SIBYTE_BCM1x80 848 select SWAP_IO_SPACE 849 select SYS_HAS_CPU_SB1 850 select SYS_SUPPORTS_BIG_ENDIAN 851 select SYS_SUPPORTS_HIGHMEM 852 select SYS_SUPPORTS_LITTLE_ENDIAN 853 select ZONE_DMA32 if 64BIT 854 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 855 856config SNI_RM 857 bool "SNI RM200/300/400" 858 select ARC_MEMORY 859 select ARC_PROMLIB 860 select FW_ARC if CPU_LITTLE_ENDIAN 861 select FW_ARC32 if CPU_LITTLE_ENDIAN 862 select FW_SNIPROM if CPU_BIG_ENDIAN 863 select ARCH_MAY_HAVE_PC_FDC 864 select ARCH_MIGHT_HAVE_PC_PARPORT 865 select ARCH_MIGHT_HAVE_PC_SERIO 866 select BOOT_ELF32 867 select CEVT_R4K 868 select CSRC_R4K 869 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 870 select DMA_NONCOHERENT 871 select GENERIC_ISA_DMA 872 select HAVE_EISA 873 select HAVE_PCSPKR_PLATFORM 874 select HAVE_PCI 875 select IRQ_MIPS_CPU 876 select I8253 877 select I8259 878 select ISA 879 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 880 select SYS_HAS_CPU_R4X00 881 select SYS_HAS_CPU_R5000 882 select SYS_HAS_CPU_R10000 883 select R5000_CPU_SCACHE 884 select SYS_HAS_EARLY_PRINTK 885 select SYS_SUPPORTS_32BIT_KERNEL 886 select SYS_SUPPORTS_64BIT_KERNEL 887 select SYS_SUPPORTS_BIG_ENDIAN 888 select SYS_SUPPORTS_HIGHMEM 889 select SYS_SUPPORTS_LITTLE_ENDIAN 890 help 891 The SNI RM200/300/400 are MIPS-based machines manufactured by 892 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 893 Technology and now in turn merged with Fujitsu. Say Y here to 894 support this machine type. 895 896config MACH_TX39XX 897 bool "Toshiba TX39 series based machines" 898 899config MACH_TX49XX 900 bool "Toshiba TX49 series based machines" 901 902config MIKROTIK_RB532 903 bool "Mikrotik RB532 boards" 904 select CEVT_R4K 905 select CSRC_R4K 906 select DMA_NONCOHERENT 907 select HAVE_PCI 908 select IRQ_MIPS_CPU 909 select SYS_HAS_CPU_MIPS32_R1 910 select SYS_SUPPORTS_32BIT_KERNEL 911 select SYS_SUPPORTS_LITTLE_ENDIAN 912 select SWAP_IO_SPACE 913 select BOOT_RAW 914 select GPIOLIB 915 select MIPS_L1_CACHE_SHIFT_4 916 help 917 Support the Mikrotik(tm) RouterBoard 532 series, 918 based on the IDT RC32434 SoC. 919 920config CAVIUM_OCTEON_SOC 921 bool "Cavium Networks Octeon SoC based boards" 922 select CEVT_R4K 923 select ARCH_HAS_PHYS_TO_DMA 924 select HAVE_RAPIDIO 925 select PHYS_ADDR_T_64BIT 926 select SYS_SUPPORTS_64BIT_KERNEL 927 select SYS_SUPPORTS_BIG_ENDIAN 928 select EDAC_SUPPORT 929 select EDAC_ATOMIC_SCRUB 930 select SYS_SUPPORTS_LITTLE_ENDIAN 931 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 932 select SYS_HAS_EARLY_PRINTK 933 select SYS_HAS_CPU_CAVIUM_OCTEON 934 select HAVE_PCI 935 select HAVE_PLAT_DELAY 936 select HAVE_PLAT_FW_INIT_CMDLINE 937 select HAVE_PLAT_MEMCPY 938 select ZONE_DMA32 939 select HOLES_IN_ZONE 940 select GPIOLIB 941 select USE_OF 942 select ARCH_SPARSEMEM_ENABLE 943 select SYS_SUPPORTS_SMP 944 select NR_CPUS_DEFAULT_64 945 select MIPS_NR_CPU_NR_MAP_1024 946 select BUILTIN_DTB 947 select MTD_COMPLEX_MAPPINGS 948 select SWIOTLB 949 select SYS_SUPPORTS_RELOCATABLE 950 help 951 This option supports all of the Octeon reference boards from Cavium 952 Networks. It builds a kernel that dynamically determines the Octeon 953 CPU type and supports all known board reference implementations. 954 Some of the supported boards are: 955 EBT3000 956 EBH3000 957 EBH3100 958 Thunder 959 Kodama 960 Hikari 961 Say Y here for most Octeon reference boards. 962 963config NLM_XLR_BOARD 964 bool "Netlogic XLR/XLS based systems" 965 select BOOT_ELF32 966 select NLM_COMMON 967 select SYS_HAS_CPU_XLR 968 select SYS_SUPPORTS_SMP 969 select HAVE_PCI 970 select SWAP_IO_SPACE 971 select SYS_SUPPORTS_32BIT_KERNEL 972 select SYS_SUPPORTS_64BIT_KERNEL 973 select PHYS_ADDR_T_64BIT 974 select SYS_SUPPORTS_BIG_ENDIAN 975 select SYS_SUPPORTS_HIGHMEM 976 select NR_CPUS_DEFAULT_32 977 select CEVT_R4K 978 select CSRC_R4K 979 select IRQ_MIPS_CPU 980 select ZONE_DMA32 if 64BIT 981 select SYNC_R4K 982 select SYS_HAS_EARLY_PRINTK 983 select SYS_SUPPORTS_ZBOOT 984 select SYS_SUPPORTS_ZBOOT_UART16550 985 help 986 Support for systems based on Netlogic XLR and XLS processors. 987 Say Y here if you have a XLR or XLS based board. 988 989config NLM_XLP_BOARD 990 bool "Netlogic XLP based systems" 991 select BOOT_ELF32 992 select NLM_COMMON 993 select SYS_HAS_CPU_XLP 994 select SYS_SUPPORTS_SMP 995 select HAVE_PCI 996 select SYS_SUPPORTS_32BIT_KERNEL 997 select SYS_SUPPORTS_64BIT_KERNEL 998 select PHYS_ADDR_T_64BIT 999 select GPIOLIB 1000 select SYS_SUPPORTS_BIG_ENDIAN 1001 select SYS_SUPPORTS_LITTLE_ENDIAN 1002 select SYS_SUPPORTS_HIGHMEM 1003 select NR_CPUS_DEFAULT_32 1004 select CEVT_R4K 1005 select CSRC_R4K 1006 select IRQ_MIPS_CPU 1007 select ZONE_DMA32 if 64BIT 1008 select SYNC_R4K 1009 select SYS_HAS_EARLY_PRINTK 1010 select USE_OF 1011 select SYS_SUPPORTS_ZBOOT 1012 select SYS_SUPPORTS_ZBOOT_UART16550 1013 help 1014 This board is based on Netlogic XLP Processor. 1015 Say Y here if you have a XLP based board. 1016 1017config MIPS_PARAVIRT 1018 bool "Para-Virtualized guest system" 1019 select CEVT_R4K 1020 select CSRC_R4K 1021 select SYS_SUPPORTS_64BIT_KERNEL 1022 select SYS_SUPPORTS_32BIT_KERNEL 1023 select SYS_SUPPORTS_BIG_ENDIAN 1024 select SYS_SUPPORTS_SMP 1025 select NR_CPUS_DEFAULT_4 1026 select SYS_HAS_EARLY_PRINTK 1027 select SYS_HAS_CPU_MIPS32_R2 1028 select SYS_HAS_CPU_MIPS64_R2 1029 select SYS_HAS_CPU_CAVIUM_OCTEON 1030 select HAVE_PCI 1031 select SWAP_IO_SPACE 1032 help 1033 This option supports guest running under ???? 1034 1035endchoice 1036 1037source "arch/mips/alchemy/Kconfig" 1038source "arch/mips/ath25/Kconfig" 1039source "arch/mips/ath79/Kconfig" 1040source "arch/mips/bcm47xx/Kconfig" 1041source "arch/mips/bcm63xx/Kconfig" 1042source "arch/mips/bmips/Kconfig" 1043source "arch/mips/generic/Kconfig" 1044source "arch/mips/jazz/Kconfig" 1045source "arch/mips/jz4740/Kconfig" 1046source "arch/mips/lantiq/Kconfig" 1047source "arch/mips/pic32/Kconfig" 1048source "arch/mips/pistachio/Kconfig" 1049source "arch/mips/ralink/Kconfig" 1050source "arch/mips/sgi-ip27/Kconfig" 1051source "arch/mips/sibyte/Kconfig" 1052source "arch/mips/txx9/Kconfig" 1053source "arch/mips/vr41xx/Kconfig" 1054source "arch/mips/cavium-octeon/Kconfig" 1055source "arch/mips/loongson2ef/Kconfig" 1056source "arch/mips/loongson32/Kconfig" 1057source "arch/mips/loongson64/Kconfig" 1058source "arch/mips/netlogic/Kconfig" 1059source "arch/mips/paravirt/Kconfig" 1060 1061endmenu 1062 1063config GENERIC_HWEIGHT 1064 bool 1065 default y 1066 1067config GENERIC_CALIBRATE_DELAY 1068 bool 1069 default y 1070 1071config SCHED_OMIT_FRAME_POINTER 1072 bool 1073 default y 1074 1075# 1076# Select some configuration options automatically based on user selections. 1077# 1078config FW_ARC 1079 bool 1080 1081config ARCH_MAY_HAVE_PC_FDC 1082 bool 1083 1084config BOOT_RAW 1085 bool 1086 1087config CEVT_BCM1480 1088 bool 1089 1090config CEVT_DS1287 1091 bool 1092 1093config CEVT_GT641XX 1094 bool 1095 1096config CEVT_R4K 1097 bool 1098 1099config CEVT_SB1250 1100 bool 1101 1102config CEVT_TXX9 1103 bool 1104 1105config CSRC_BCM1480 1106 bool 1107 1108config CSRC_IOASIC 1109 bool 1110 1111config CSRC_R4K 1112 select CLOCKSOURCE_WATCHDOG if CPU_FREQ 1113 bool 1114 1115config CSRC_SB1250 1116 bool 1117 1118config MIPS_CLOCK_VSYSCALL 1119 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1120 1121config GPIO_TXX9 1122 select GPIOLIB 1123 bool 1124 1125config FW_CFE 1126 bool 1127 1128config ARCH_SUPPORTS_UPROBES 1129 bool 1130 1131config DMA_MAYBE_COHERENT 1132 select ARCH_HAS_DMA_COHERENCE_H 1133 select DMA_NONCOHERENT 1134 bool 1135 1136config DMA_PERDEV_COHERENT 1137 bool 1138 select ARCH_HAS_SETUP_DMA_OPS 1139 select DMA_NONCOHERENT 1140 1141config DMA_NONCOHERENT 1142 bool 1143 # 1144 # MIPS allows mixing "slightly different" Cacheability and Coherency 1145 # Attribute bits. It is believed that the uncached access through 1146 # KSEG1 and the implementation specific "uncached accelerated" used 1147 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1148 # significant advantages. 1149 # 1150 select ARCH_HAS_DMA_WRITE_COMBINE 1151 select ARCH_HAS_DMA_PREP_COHERENT 1152 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1153 select ARCH_HAS_DMA_SET_UNCACHED 1154 select DMA_NONCOHERENT_MMAP 1155 select DMA_NONCOHERENT_CACHE_SYNC 1156 select NEED_DMA_MAP_STATE 1157 1158config SYS_HAS_EARLY_PRINTK 1159 bool 1160 1161config SYS_SUPPORTS_HOTPLUG_CPU 1162 bool 1163 1164config MIPS_BONITO64 1165 bool 1166 1167config MIPS_MSC 1168 bool 1169 1170config SYNC_R4K 1171 bool 1172 1173config MIPS_MACHINE 1174 def_bool n 1175 1176config NO_IOPORT_MAP 1177 def_bool n 1178 1179config GENERIC_CSUM 1180 def_bool CPU_NO_LOAD_STORE_LR 1181 1182config GENERIC_ISA_DMA 1183 bool 1184 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1185 select ISA_DMA_API 1186 1187config GENERIC_ISA_DMA_SUPPORT_BROKEN 1188 bool 1189 select GENERIC_ISA_DMA 1190 1191config HAVE_PLAT_DELAY 1192 bool 1193 1194config HAVE_PLAT_FW_INIT_CMDLINE 1195 bool 1196 1197config HAVE_PLAT_MEMCPY 1198 bool 1199 1200config ISA_DMA_API 1201 bool 1202 1203config HOLES_IN_ZONE 1204 bool 1205 1206config SYS_SUPPORTS_RELOCATABLE 1207 bool 1208 help 1209 Selected if the platform supports relocating the kernel. 1210 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1211 to allow access to command line and entropy sources. 1212 1213config MIPS_CBPF_JIT 1214 def_bool y 1215 depends on BPF_JIT && HAVE_CBPF_JIT 1216 1217config MIPS_EBPF_JIT 1218 def_bool y 1219 depends on BPF_JIT && HAVE_EBPF_JIT 1220 1221 1222# 1223# Endianness selection. Sufficiently obscure so many users don't know what to 1224# answer,so we try hard to limit the available choices. Also the use of a 1225# choice statement should be more obvious to the user. 1226# 1227choice 1228 prompt "Endianness selection" 1229 help 1230 Some MIPS machines can be configured for either little or big endian 1231 byte order. These modes require different kernels and a different 1232 Linux distribution. In general there is one preferred byteorder for a 1233 particular system but some systems are just as commonly used in the 1234 one or the other endianness. 1235 1236config CPU_BIG_ENDIAN 1237 bool "Big endian" 1238 depends on SYS_SUPPORTS_BIG_ENDIAN 1239 1240config CPU_LITTLE_ENDIAN 1241 bool "Little endian" 1242 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1243 1244endchoice 1245 1246config EXPORT_UASM 1247 bool 1248 1249config SYS_SUPPORTS_APM_EMULATION 1250 bool 1251 1252config SYS_SUPPORTS_BIG_ENDIAN 1253 bool 1254 1255config SYS_SUPPORTS_LITTLE_ENDIAN 1256 bool 1257 1258config SYS_SUPPORTS_HUGETLBFS 1259 bool 1260 depends on CPU_SUPPORTS_HUGEPAGES 1261 default y 1262 1263config MIPS_HUGE_TLB_SUPPORT 1264 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1265 1266config IRQ_CPU_RM7K 1267 bool 1268 1269config IRQ_MSP_SLP 1270 bool 1271 1272config IRQ_MSP_CIC 1273 bool 1274 1275config IRQ_TXX9 1276 bool 1277 1278config IRQ_GT641XX 1279 bool 1280 1281config PCI_GT64XXX_PCI0 1282 bool 1283 1284config PCI_XTALK_BRIDGE 1285 bool 1286 1287config NO_EXCEPT_FILL 1288 bool 1289 1290config SOC_PNX833X 1291 bool 1292 select CEVT_R4K 1293 select CSRC_R4K 1294 select IRQ_MIPS_CPU 1295 select DMA_NONCOHERENT 1296 select SYS_HAS_CPU_MIPS32_R2 1297 select SYS_SUPPORTS_32BIT_KERNEL 1298 select SYS_SUPPORTS_LITTLE_ENDIAN 1299 select SYS_SUPPORTS_BIG_ENDIAN 1300 select SYS_SUPPORTS_MIPS16 1301 select CPU_MIPSR2_IRQ_VI 1302 1303config SOC_PNX8335 1304 bool 1305 select SOC_PNX833X 1306 1307config MIPS_SPRAM 1308 bool 1309 1310config SWAP_IO_SPACE 1311 bool 1312 1313config SGI_HAS_INDYDOG 1314 bool 1315 1316config SGI_HAS_HAL2 1317 bool 1318 1319config SGI_HAS_SEEQ 1320 bool 1321 1322config SGI_HAS_WD93 1323 bool 1324 1325config SGI_HAS_ZILOG 1326 bool 1327 1328config SGI_HAS_I8042 1329 bool 1330 1331config DEFAULT_SGI_PARTITION 1332 bool 1333 1334config FW_ARC32 1335 bool 1336 1337config FW_SNIPROM 1338 bool 1339 1340config BOOT_ELF32 1341 bool 1342 1343config MIPS_L1_CACHE_SHIFT_4 1344 bool 1345 1346config MIPS_L1_CACHE_SHIFT_5 1347 bool 1348 1349config MIPS_L1_CACHE_SHIFT_6 1350 bool 1351 1352config MIPS_L1_CACHE_SHIFT_7 1353 bool 1354 1355config MIPS_L1_CACHE_SHIFT 1356 int 1357 default "7" if MIPS_L1_CACHE_SHIFT_7 1358 default "6" if MIPS_L1_CACHE_SHIFT_6 1359 default "5" if MIPS_L1_CACHE_SHIFT_5 1360 default "4" if MIPS_L1_CACHE_SHIFT_4 1361 default "5" 1362 1363config ARC_CMDLINE_ONLY 1364 bool 1365 1366config ARC_CONSOLE 1367 bool "ARC console support" 1368 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1369 1370config ARC_MEMORY 1371 bool 1372 1373config ARC_PROMLIB 1374 bool 1375 1376config FW_ARC64 1377 bool 1378 1379config BOOT_ELF64 1380 bool 1381 1382menu "CPU selection" 1383 1384choice 1385 prompt "CPU type" 1386 default CPU_R4X00 1387 1388config CPU_LOONGSON64 1389 bool "Loongson 64-bit CPU" 1390 depends on SYS_HAS_CPU_LOONGSON64 1391 select ARCH_HAS_PHYS_TO_DMA 1392 select CPU_MIPSR2 1393 select CPU_HAS_PREFETCH 1394 select CPU_SUPPORTS_64BIT_KERNEL 1395 select CPU_SUPPORTS_HIGHMEM 1396 select CPU_SUPPORTS_HUGEPAGES 1397 select CPU_SUPPORTS_MSA 1398 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1399 select CPU_MIPSR2_IRQ_VI 1400 select WEAK_ORDERING 1401 select WEAK_REORDERING_BEYOND_LLSC 1402 select MIPS_ASID_BITS_VARIABLE 1403 select MIPS_PGD_C0_CONTEXT 1404 select MIPS_L1_CACHE_SHIFT_6 1405 select GPIOLIB 1406 select SWIOTLB 1407 help 1408 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1409 cores implements the MIPS64R2 instruction set with many extensions, 1410 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1411 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1412 Loongson-2E/2F is not covered here and will be removed in future. 1413 1414config LOONGSON3_ENHANCEMENT 1415 bool "New Loongson-3 CPU Enhancements" 1416 default n 1417 depends on CPU_LOONGSON64 1418 help 1419 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1420 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1421 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1422 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1423 Fast TLB refill support, etc. 1424 1425 This option enable those enhancements which are not probed at run 1426 time. If you want a generic kernel to run on all Loongson 3 machines, 1427 please say 'N' here. If you want a high-performance kernel to run on 1428 new Loongson-3 machines only, please say 'Y' here. 1429 1430config CPU_LOONGSON3_WORKAROUNDS 1431 bool "Old Loongson-3 LLSC Workarounds" 1432 default y if SMP 1433 depends on CPU_LOONGSON64 1434 help 1435 Loongson-3 processors have the llsc issues which require workarounds. 1436 Without workarounds the system may hang unexpectedly. 1437 1438 Newer Loongson-3 will fix these issues and no workarounds are needed. 1439 The workarounds have no significant side effect on them but may 1440 decrease the performance of the system so this option should be 1441 disabled unless the kernel is intended to be run on old systems. 1442 1443 If unsure, please say Y. 1444 1445config CPU_LOONGSON3_CPUCFG_EMULATION 1446 bool "Emulate the CPUCFG instruction on older Loongson cores" 1447 default y 1448 depends on CPU_LOONGSON64 1449 help 1450 Loongson-3A R4 and newer have the CPUCFG instruction available for 1451 userland to query CPU capabilities, much like CPUID on x86. This 1452 option provides emulation of the instruction on older Loongson 1453 cores, back to Loongson-3A1000. 1454 1455 If unsure, please say Y. 1456 1457config CPU_LOONGSON2E 1458 bool "Loongson 2E" 1459 depends on SYS_HAS_CPU_LOONGSON2E 1460 select CPU_LOONGSON2EF 1461 help 1462 The Loongson 2E processor implements the MIPS III instruction set 1463 with many extensions. 1464 1465 It has an internal FPGA northbridge, which is compatible to 1466 bonito64. 1467 1468config CPU_LOONGSON2F 1469 bool "Loongson 2F" 1470 depends on SYS_HAS_CPU_LOONGSON2F 1471 select CPU_LOONGSON2EF 1472 select GPIOLIB 1473 help 1474 The Loongson 2F processor implements the MIPS III instruction set 1475 with many extensions. 1476 1477 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1478 have a similar programming interface with FPGA northbridge used in 1479 Loongson2E. 1480 1481config CPU_LOONGSON1B 1482 bool "Loongson 1B" 1483 depends on SYS_HAS_CPU_LOONGSON1B 1484 select CPU_LOONGSON32 1485 select LEDS_GPIO_REGISTER 1486 help 1487 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1488 Release 1 instruction set and part of the MIPS32 Release 2 1489 instruction set. 1490 1491config CPU_LOONGSON1C 1492 bool "Loongson 1C" 1493 depends on SYS_HAS_CPU_LOONGSON1C 1494 select CPU_LOONGSON32 1495 select LEDS_GPIO_REGISTER 1496 help 1497 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1498 Release 1 instruction set and part of the MIPS32 Release 2 1499 instruction set. 1500 1501config CPU_MIPS32_R1 1502 bool "MIPS32 Release 1" 1503 depends on SYS_HAS_CPU_MIPS32_R1 1504 select CPU_HAS_PREFETCH 1505 select CPU_SUPPORTS_32BIT_KERNEL 1506 select CPU_SUPPORTS_HIGHMEM 1507 help 1508 Choose this option to build a kernel for release 1 or later of the 1509 MIPS32 architecture. Most modern embedded systems with a 32-bit 1510 MIPS processor are based on a MIPS32 processor. If you know the 1511 specific type of processor in your system, choose those that one 1512 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1513 Release 2 of the MIPS32 architecture is available since several 1514 years so chances are you even have a MIPS32 Release 2 processor 1515 in which case you should choose CPU_MIPS32_R2 instead for better 1516 performance. 1517 1518config CPU_MIPS32_R2 1519 bool "MIPS32 Release 2" 1520 depends on SYS_HAS_CPU_MIPS32_R2 1521 select CPU_HAS_PREFETCH 1522 select CPU_SUPPORTS_32BIT_KERNEL 1523 select CPU_SUPPORTS_HIGHMEM 1524 select CPU_SUPPORTS_MSA 1525 select HAVE_KVM 1526 help 1527 Choose this option to build a kernel for release 2 or later of the 1528 MIPS32 architecture. Most modern embedded systems with a 32-bit 1529 MIPS processor are based on a MIPS32 processor. If you know the 1530 specific type of processor in your system, choose those that one 1531 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1532 1533config CPU_MIPS32_R5 1534 bool "MIPS32 Release 5" 1535 depends on SYS_HAS_CPU_MIPS32_R5 1536 select CPU_HAS_PREFETCH 1537 select CPU_SUPPORTS_32BIT_KERNEL 1538 select CPU_SUPPORTS_HIGHMEM 1539 select CPU_SUPPORTS_MSA 1540 select HAVE_KVM 1541 select MIPS_O32_FP64_SUPPORT 1542 help 1543 Choose this option to build a kernel for release 5 or later of the 1544 MIPS32 architecture. New MIPS processors, starting with the Warrior 1545 family, are based on a MIPS32r5 processor. If you own an older 1546 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1547 1548config CPU_MIPS32_R6 1549 bool "MIPS32 Release 6" 1550 depends on SYS_HAS_CPU_MIPS32_R6 1551 select CPU_HAS_PREFETCH 1552 select CPU_NO_LOAD_STORE_LR 1553 select CPU_SUPPORTS_32BIT_KERNEL 1554 select CPU_SUPPORTS_HIGHMEM 1555 select CPU_SUPPORTS_MSA 1556 select HAVE_KVM 1557 select MIPS_O32_FP64_SUPPORT 1558 help 1559 Choose this option to build a kernel for release 6 or later of the 1560 MIPS32 architecture. New MIPS processors, starting with the Warrior 1561 family, are based on a MIPS32r6 processor. If you own an older 1562 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1563 1564config CPU_MIPS64_R1 1565 bool "MIPS64 Release 1" 1566 depends on SYS_HAS_CPU_MIPS64_R1 1567 select CPU_HAS_PREFETCH 1568 select CPU_SUPPORTS_32BIT_KERNEL 1569 select CPU_SUPPORTS_64BIT_KERNEL 1570 select CPU_SUPPORTS_HIGHMEM 1571 select CPU_SUPPORTS_HUGEPAGES 1572 help 1573 Choose this option to build a kernel for release 1 or later of the 1574 MIPS64 architecture. Many modern embedded systems with a 64-bit 1575 MIPS processor are based on a MIPS64 processor. If you know the 1576 specific type of processor in your system, choose those that one 1577 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1578 Release 2 of the MIPS64 architecture is available since several 1579 years so chances are you even have a MIPS64 Release 2 processor 1580 in which case you should choose CPU_MIPS64_R2 instead for better 1581 performance. 1582 1583config CPU_MIPS64_R2 1584 bool "MIPS64 Release 2" 1585 depends on SYS_HAS_CPU_MIPS64_R2 1586 select CPU_HAS_PREFETCH 1587 select CPU_SUPPORTS_32BIT_KERNEL 1588 select CPU_SUPPORTS_64BIT_KERNEL 1589 select CPU_SUPPORTS_HIGHMEM 1590 select CPU_SUPPORTS_HUGEPAGES 1591 select CPU_SUPPORTS_MSA 1592 select HAVE_KVM 1593 help 1594 Choose this option to build a kernel for release 2 or later of the 1595 MIPS64 architecture. Many modern embedded systems with a 64-bit 1596 MIPS processor are based on a MIPS64 processor. If you know the 1597 specific type of processor in your system, choose those that one 1598 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1599 1600config CPU_MIPS64_R5 1601 bool "MIPS64 Release 5" 1602 depends on SYS_HAS_CPU_MIPS64_R5 1603 select CPU_HAS_PREFETCH 1604 select CPU_SUPPORTS_32BIT_KERNEL 1605 select CPU_SUPPORTS_64BIT_KERNEL 1606 select CPU_SUPPORTS_HIGHMEM 1607 select CPU_SUPPORTS_HUGEPAGES 1608 select CPU_SUPPORTS_MSA 1609 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1610 select HAVE_KVM 1611 help 1612 Choose this option to build a kernel for release 5 or later of the 1613 MIPS64 architecture. This is a intermediate MIPS architecture 1614 release partly implementing release 6 features. Though there is no 1615 any hardware known to be based on this release. 1616 1617config CPU_MIPS64_R6 1618 bool "MIPS64 Release 6" 1619 depends on SYS_HAS_CPU_MIPS64_R6 1620 select CPU_HAS_PREFETCH 1621 select CPU_NO_LOAD_STORE_LR 1622 select CPU_SUPPORTS_32BIT_KERNEL 1623 select CPU_SUPPORTS_64BIT_KERNEL 1624 select CPU_SUPPORTS_HIGHMEM 1625 select CPU_SUPPORTS_HUGEPAGES 1626 select CPU_SUPPORTS_MSA 1627 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1628 select HAVE_KVM 1629 help 1630 Choose this option to build a kernel for release 6 or later of the 1631 MIPS64 architecture. New MIPS processors, starting with the Warrior 1632 family, are based on a MIPS64r6 processor. If you own an older 1633 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1634 1635config CPU_P5600 1636 bool "MIPS Warrior P5600" 1637 depends on SYS_HAS_CPU_P5600 1638 select CPU_HAS_PREFETCH 1639 select CPU_SUPPORTS_32BIT_KERNEL 1640 select CPU_SUPPORTS_HIGHMEM 1641 select CPU_SUPPORTS_MSA 1642 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1643 select CPU_SUPPORTS_CPUFREQ 1644 select CPU_MIPSR2_IRQ_VI 1645 select CPU_MIPSR2_IRQ_EI 1646 select HAVE_KVM 1647 select MIPS_O32_FP64_SUPPORT 1648 help 1649 Choose this option to build a kernel for MIPS Warrior P5600 CPU. 1650 It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes, 1651 MMU with two-levels TLB, UCA, MSA, MDU core level features and system 1652 level features like up to six P5600 calculation cores, CM2 with L2 1653 cache, IOCU/IOMMU (though might be unused depending on the system- 1654 specific IP core configuration), GIC, CPC, virtualisation module, 1655 eJTAG and PDtrace. 1656 1657config CPU_R3000 1658 bool "R3000" 1659 depends on SYS_HAS_CPU_R3000 1660 select CPU_HAS_WB 1661 select CPU_R3K_TLB 1662 select CPU_SUPPORTS_32BIT_KERNEL 1663 select CPU_SUPPORTS_HIGHMEM 1664 help 1665 Please make sure to pick the right CPU type. Linux/MIPS is not 1666 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1667 *not* work on R4000 machines and vice versa. However, since most 1668 of the supported machines have an R4000 (or similar) CPU, R4x00 1669 might be a safe bet. If the resulting kernel does not work, 1670 try to recompile with R3000. 1671 1672config CPU_TX39XX 1673 bool "R39XX" 1674 depends on SYS_HAS_CPU_TX39XX 1675 select CPU_SUPPORTS_32BIT_KERNEL 1676 select CPU_R3K_TLB 1677 1678config CPU_VR41XX 1679 bool "R41xx" 1680 depends on SYS_HAS_CPU_VR41XX 1681 select CPU_SUPPORTS_32BIT_KERNEL 1682 select CPU_SUPPORTS_64BIT_KERNEL 1683 help 1684 The options selects support for the NEC VR4100 series of processors. 1685 Only choose this option if you have one of these processors as a 1686 kernel built with this option will not run on any other type of 1687 processor or vice versa. 1688 1689config CPU_R4X00 1690 bool "R4x00" 1691 depends on SYS_HAS_CPU_R4X00 1692 select CPU_SUPPORTS_32BIT_KERNEL 1693 select CPU_SUPPORTS_64BIT_KERNEL 1694 select CPU_SUPPORTS_HUGEPAGES 1695 help 1696 MIPS Technologies R4000-series processors other than 4300, including 1697 the R4000, R4400, R4600, and 4700. 1698 1699config CPU_TX49XX 1700 bool "R49XX" 1701 depends on SYS_HAS_CPU_TX49XX 1702 select CPU_HAS_PREFETCH 1703 select CPU_SUPPORTS_32BIT_KERNEL 1704 select CPU_SUPPORTS_64BIT_KERNEL 1705 select CPU_SUPPORTS_HUGEPAGES 1706 1707config CPU_R5000 1708 bool "R5000" 1709 depends on SYS_HAS_CPU_R5000 1710 select CPU_SUPPORTS_32BIT_KERNEL 1711 select CPU_SUPPORTS_64BIT_KERNEL 1712 select CPU_SUPPORTS_HUGEPAGES 1713 help 1714 MIPS Technologies R5000-series processors other than the Nevada. 1715 1716config CPU_R5500 1717 bool "R5500" 1718 depends on SYS_HAS_CPU_R5500 1719 select CPU_SUPPORTS_32BIT_KERNEL 1720 select CPU_SUPPORTS_64BIT_KERNEL 1721 select CPU_SUPPORTS_HUGEPAGES 1722 help 1723 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1724 instruction set. 1725 1726config CPU_NEVADA 1727 bool "RM52xx" 1728 depends on SYS_HAS_CPU_NEVADA 1729 select CPU_SUPPORTS_32BIT_KERNEL 1730 select CPU_SUPPORTS_64BIT_KERNEL 1731 select CPU_SUPPORTS_HUGEPAGES 1732 help 1733 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1734 1735config CPU_R10000 1736 bool "R10000" 1737 depends on SYS_HAS_CPU_R10000 1738 select CPU_HAS_PREFETCH 1739 select CPU_SUPPORTS_32BIT_KERNEL 1740 select CPU_SUPPORTS_64BIT_KERNEL 1741 select CPU_SUPPORTS_HIGHMEM 1742 select CPU_SUPPORTS_HUGEPAGES 1743 help 1744 MIPS Technologies R10000-series processors. 1745 1746config CPU_RM7000 1747 bool "RM7000" 1748 depends on SYS_HAS_CPU_RM7000 1749 select CPU_HAS_PREFETCH 1750 select CPU_SUPPORTS_32BIT_KERNEL 1751 select CPU_SUPPORTS_64BIT_KERNEL 1752 select CPU_SUPPORTS_HIGHMEM 1753 select CPU_SUPPORTS_HUGEPAGES 1754 1755config CPU_SB1 1756 bool "SB1" 1757 depends on SYS_HAS_CPU_SB1 1758 select CPU_SUPPORTS_32BIT_KERNEL 1759 select CPU_SUPPORTS_64BIT_KERNEL 1760 select CPU_SUPPORTS_HIGHMEM 1761 select CPU_SUPPORTS_HUGEPAGES 1762 select WEAK_ORDERING 1763 1764config CPU_CAVIUM_OCTEON 1765 bool "Cavium Octeon processor" 1766 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1767 select CPU_HAS_PREFETCH 1768 select CPU_SUPPORTS_64BIT_KERNEL 1769 select WEAK_ORDERING 1770 select CPU_SUPPORTS_HIGHMEM 1771 select CPU_SUPPORTS_HUGEPAGES 1772 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1773 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1774 select MIPS_L1_CACHE_SHIFT_7 1775 select HAVE_KVM 1776 help 1777 The Cavium Octeon processor is a highly integrated chip containing 1778 many ethernet hardware widgets for networking tasks. The processor 1779 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1780 Full details can be found at http://www.caviumnetworks.com. 1781 1782config CPU_BMIPS 1783 bool "Broadcom BMIPS" 1784 depends on SYS_HAS_CPU_BMIPS 1785 select CPU_MIPS32 1786 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1787 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1788 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1789 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1790 select CPU_SUPPORTS_32BIT_KERNEL 1791 select DMA_NONCOHERENT 1792 select IRQ_MIPS_CPU 1793 select SWAP_IO_SPACE 1794 select WEAK_ORDERING 1795 select CPU_SUPPORTS_HIGHMEM 1796 select CPU_HAS_PREFETCH 1797 select CPU_SUPPORTS_CPUFREQ 1798 select MIPS_EXTERNAL_TIMER 1799 help 1800 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1801 1802config CPU_XLR 1803 bool "Netlogic XLR SoC" 1804 depends on SYS_HAS_CPU_XLR 1805 select CPU_SUPPORTS_32BIT_KERNEL 1806 select CPU_SUPPORTS_64BIT_KERNEL 1807 select CPU_SUPPORTS_HIGHMEM 1808 select CPU_SUPPORTS_HUGEPAGES 1809 select WEAK_ORDERING 1810 select WEAK_REORDERING_BEYOND_LLSC 1811 help 1812 Netlogic Microsystems XLR/XLS processors. 1813 1814config CPU_XLP 1815 bool "Netlogic XLP SoC" 1816 depends on SYS_HAS_CPU_XLP 1817 select CPU_SUPPORTS_32BIT_KERNEL 1818 select CPU_SUPPORTS_64BIT_KERNEL 1819 select CPU_SUPPORTS_HIGHMEM 1820 select WEAK_ORDERING 1821 select WEAK_REORDERING_BEYOND_LLSC 1822 select CPU_HAS_PREFETCH 1823 select CPU_MIPSR2 1824 select CPU_SUPPORTS_HUGEPAGES 1825 select MIPS_ASID_BITS_VARIABLE 1826 help 1827 Netlogic Microsystems XLP processors. 1828endchoice 1829 1830config CPU_MIPS32_3_5_FEATURES 1831 bool "MIPS32 Release 3.5 Features" 1832 depends on SYS_HAS_CPU_MIPS32_R3_5 1833 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \ 1834 CPU_P5600 1835 help 1836 Choose this option to build a kernel for release 2 or later of the 1837 MIPS32 architecture including features from the 3.5 release such as 1838 support for Enhanced Virtual Addressing (EVA). 1839 1840config CPU_MIPS32_3_5_EVA 1841 bool "Enhanced Virtual Addressing (EVA)" 1842 depends on CPU_MIPS32_3_5_FEATURES 1843 select EVA 1844 default y 1845 help 1846 Choose this option if you want to enable the Enhanced Virtual 1847 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1848 One of its primary benefits is an increase in the maximum size 1849 of lowmem (up to 3GB). If unsure, say 'N' here. 1850 1851config CPU_MIPS32_R5_FEATURES 1852 bool "MIPS32 Release 5 Features" 1853 depends on SYS_HAS_CPU_MIPS32_R5 1854 depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600 1855 help 1856 Choose this option to build a kernel for release 2 or later of the 1857 MIPS32 architecture including features from release 5 such as 1858 support for Extended Physical Addressing (XPA). 1859 1860config CPU_MIPS32_R5_XPA 1861 bool "Extended Physical Addressing (XPA)" 1862 depends on CPU_MIPS32_R5_FEATURES 1863 depends on !EVA 1864 depends on !PAGE_SIZE_4KB 1865 depends on SYS_SUPPORTS_HIGHMEM 1866 select XPA 1867 select HIGHMEM 1868 select PHYS_ADDR_T_64BIT 1869 default n 1870 help 1871 Choose this option if you want to enable the Extended Physical 1872 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1873 benefit is to increase physical addressing equal to or greater 1874 than 40 bits. Note that this has the side effect of turning on 1875 64-bit addressing which in turn makes the PTEs 64-bit in size. 1876 If unsure, say 'N' here. 1877 1878if CPU_LOONGSON2F 1879config CPU_NOP_WORKAROUNDS 1880 bool 1881 1882config CPU_JUMP_WORKAROUNDS 1883 bool 1884 1885config CPU_LOONGSON2F_WORKAROUNDS 1886 bool "Loongson 2F Workarounds" 1887 default y 1888 select CPU_NOP_WORKAROUNDS 1889 select CPU_JUMP_WORKAROUNDS 1890 help 1891 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1892 require workarounds. Without workarounds the system may hang 1893 unexpectedly. For more information please refer to the gas 1894 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1895 1896 Loongson 2F03 and later have fixed these issues and no workarounds 1897 are needed. The workarounds have no significant side effect on them 1898 but may decrease the performance of the system so this option should 1899 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1900 systems. 1901 1902 If unsure, please say Y. 1903endif # CPU_LOONGSON2F 1904 1905config SYS_SUPPORTS_ZBOOT 1906 bool 1907 select HAVE_KERNEL_GZIP 1908 select HAVE_KERNEL_BZIP2 1909 select HAVE_KERNEL_LZ4 1910 select HAVE_KERNEL_LZMA 1911 select HAVE_KERNEL_LZO 1912 select HAVE_KERNEL_XZ 1913 1914config SYS_SUPPORTS_ZBOOT_UART16550 1915 bool 1916 select SYS_SUPPORTS_ZBOOT 1917 1918config SYS_SUPPORTS_ZBOOT_UART_PROM 1919 bool 1920 select SYS_SUPPORTS_ZBOOT 1921 1922config CPU_LOONGSON2EF 1923 bool 1924 select CPU_SUPPORTS_32BIT_KERNEL 1925 select CPU_SUPPORTS_64BIT_KERNEL 1926 select CPU_SUPPORTS_HIGHMEM 1927 select CPU_SUPPORTS_HUGEPAGES 1928 select ARCH_HAS_PHYS_TO_DMA 1929 1930config CPU_LOONGSON32 1931 bool 1932 select CPU_MIPS32 1933 select CPU_MIPSR2 1934 select CPU_HAS_PREFETCH 1935 select CPU_SUPPORTS_32BIT_KERNEL 1936 select CPU_SUPPORTS_HIGHMEM 1937 select CPU_SUPPORTS_CPUFREQ 1938 1939config CPU_BMIPS32_3300 1940 select SMP_UP if SMP 1941 bool 1942 1943config CPU_BMIPS4350 1944 bool 1945 select SYS_SUPPORTS_SMP 1946 select SYS_SUPPORTS_HOTPLUG_CPU 1947 1948config CPU_BMIPS4380 1949 bool 1950 select MIPS_L1_CACHE_SHIFT_6 1951 select SYS_SUPPORTS_SMP 1952 select SYS_SUPPORTS_HOTPLUG_CPU 1953 select CPU_HAS_RIXI 1954 1955config CPU_BMIPS5000 1956 bool 1957 select MIPS_CPU_SCACHE 1958 select MIPS_L1_CACHE_SHIFT_7 1959 select SYS_SUPPORTS_SMP 1960 select SYS_SUPPORTS_HOTPLUG_CPU 1961 select CPU_HAS_RIXI 1962 1963config SYS_HAS_CPU_LOONGSON64 1964 bool 1965 select CPU_SUPPORTS_CPUFREQ 1966 select CPU_HAS_RIXI 1967 1968config SYS_HAS_CPU_LOONGSON2E 1969 bool 1970 1971config SYS_HAS_CPU_LOONGSON2F 1972 bool 1973 select CPU_SUPPORTS_CPUFREQ 1974 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1975 1976config SYS_HAS_CPU_LOONGSON1B 1977 bool 1978 1979config SYS_HAS_CPU_LOONGSON1C 1980 bool 1981 1982config SYS_HAS_CPU_MIPS32_R1 1983 bool 1984 1985config SYS_HAS_CPU_MIPS32_R2 1986 bool 1987 1988config SYS_HAS_CPU_MIPS32_R3_5 1989 bool 1990 1991config SYS_HAS_CPU_MIPS32_R5 1992 bool 1993 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1994 1995config SYS_HAS_CPU_MIPS32_R6 1996 bool 1997 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1998 1999config SYS_HAS_CPU_MIPS64_R1 2000 bool 2001 2002config SYS_HAS_CPU_MIPS64_R2 2003 bool 2004 2005config SYS_HAS_CPU_MIPS64_R6 2006 bool 2007 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2008 2009config SYS_HAS_CPU_P5600 2010 bool 2011 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2012 2013config SYS_HAS_CPU_R3000 2014 bool 2015 2016config SYS_HAS_CPU_TX39XX 2017 bool 2018 2019config SYS_HAS_CPU_VR41XX 2020 bool 2021 2022config SYS_HAS_CPU_R4X00 2023 bool 2024 2025config SYS_HAS_CPU_TX49XX 2026 bool 2027 2028config SYS_HAS_CPU_R5000 2029 bool 2030 2031config SYS_HAS_CPU_R5500 2032 bool 2033 2034config SYS_HAS_CPU_NEVADA 2035 bool 2036 2037config SYS_HAS_CPU_R10000 2038 bool 2039 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2040 2041config SYS_HAS_CPU_RM7000 2042 bool 2043 2044config SYS_HAS_CPU_SB1 2045 bool 2046 2047config SYS_HAS_CPU_CAVIUM_OCTEON 2048 bool 2049 2050config SYS_HAS_CPU_BMIPS 2051 bool 2052 2053config SYS_HAS_CPU_BMIPS32_3300 2054 bool 2055 select SYS_HAS_CPU_BMIPS 2056 2057config SYS_HAS_CPU_BMIPS4350 2058 bool 2059 select SYS_HAS_CPU_BMIPS 2060 2061config SYS_HAS_CPU_BMIPS4380 2062 bool 2063 select SYS_HAS_CPU_BMIPS 2064 2065config SYS_HAS_CPU_BMIPS5000 2066 bool 2067 select SYS_HAS_CPU_BMIPS 2068 select ARCH_HAS_SYNC_DMA_FOR_CPU 2069 2070config SYS_HAS_CPU_XLR 2071 bool 2072 2073config SYS_HAS_CPU_XLP 2074 bool 2075 2076# 2077# CPU may reorder R->R, R->W, W->R, W->W 2078# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2079# 2080config WEAK_ORDERING 2081 bool 2082 2083# 2084# CPU may reorder reads and writes beyond LL/SC 2085# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2086# 2087config WEAK_REORDERING_BEYOND_LLSC 2088 bool 2089endmenu 2090 2091# 2092# These two indicate any level of the MIPS32 and MIPS64 architecture 2093# 2094config CPU_MIPS32 2095 bool 2096 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \ 2097 CPU_MIPS32_R6 || CPU_P5600 2098 2099config CPU_MIPS64 2100 bool 2101 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \ 2102 CPU_MIPS64_R6 2103 2104# 2105# These indicate the revision of the architecture 2106# 2107config CPU_MIPSR1 2108 bool 2109 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2110 2111config CPU_MIPSR2 2112 bool 2113 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2114 select CPU_HAS_RIXI 2115 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2116 select MIPS_SPRAM 2117 2118config CPU_MIPSR5 2119 bool 2120 default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600 2121 select CPU_HAS_RIXI 2122 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2123 select MIPS_SPRAM 2124 2125config CPU_MIPSR6 2126 bool 2127 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2128 select CPU_HAS_RIXI 2129 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2130 select HAVE_ARCH_BITREVERSE 2131 select MIPS_ASID_BITS_VARIABLE 2132 select MIPS_CRC_SUPPORT 2133 select MIPS_SPRAM 2134 2135config TARGET_ISA_REV 2136 int 2137 default 1 if CPU_MIPSR1 2138 default 2 if CPU_MIPSR2 2139 default 5 if CPU_MIPSR5 2140 default 6 if CPU_MIPSR6 2141 default 0 2142 help 2143 Reflects the ISA revision being targeted by the kernel build. This 2144 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2145 2146config EVA 2147 bool 2148 2149config XPA 2150 bool 2151 2152config SYS_SUPPORTS_32BIT_KERNEL 2153 bool 2154config SYS_SUPPORTS_64BIT_KERNEL 2155 bool 2156config CPU_SUPPORTS_32BIT_KERNEL 2157 bool 2158config CPU_SUPPORTS_64BIT_KERNEL 2159 bool 2160config CPU_SUPPORTS_CPUFREQ 2161 bool 2162config CPU_SUPPORTS_ADDRWINCFG 2163 bool 2164config CPU_SUPPORTS_HUGEPAGES 2165 bool 2166 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2167config MIPS_PGD_C0_CONTEXT 2168 bool 2169 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2170 2171# 2172# Set to y for ptrace access to watch registers. 2173# 2174config HARDWARE_WATCHPOINTS 2175 bool 2176 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2177 2178menu "Kernel type" 2179 2180choice 2181 prompt "Kernel code model" 2182 help 2183 You should only select this option if you have a workload that 2184 actually benefits from 64-bit processing or if your machine has 2185 large memory. You will only be presented a single option in this 2186 menu if your system does not support both 32-bit and 64-bit kernels. 2187 2188config 32BIT 2189 bool "32-bit kernel" 2190 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2191 select TRAD_SIGNALS 2192 help 2193 Select this option if you want to build a 32-bit kernel. 2194 2195config 64BIT 2196 bool "64-bit kernel" 2197 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2198 help 2199 Select this option if you want to build a 64-bit kernel. 2200 2201endchoice 2202 2203config KVM_GUEST 2204 bool "KVM Guest Kernel" 2205 depends on BROKEN_ON_SMP 2206 help 2207 Select this option if building a guest kernel for KVM (Trap & Emulate) 2208 mode. 2209 2210config KVM_GUEST_TIMER_FREQ 2211 int "Count/Compare Timer Frequency (MHz)" 2212 depends on KVM_GUEST 2213 default 100 2214 help 2215 Set this to non-zero if building a guest kernel for KVM to skip RTC 2216 emulation when determining guest CPU Frequency. Instead, the guest's 2217 timer frequency is specified directly. 2218 2219config MIPS_VA_BITS_48 2220 bool "48 bits virtual memory" 2221 depends on 64BIT 2222 help 2223 Support a maximum at least 48 bits of application virtual 2224 memory. Default is 40 bits or less, depending on the CPU. 2225 For page sizes 16k and above, this option results in a small 2226 memory overhead for page tables. For 4k page size, a fourth 2227 level of page tables is added which imposes both a memory 2228 overhead as well as slower TLB fault handling. 2229 2230 If unsure, say N. 2231 2232choice 2233 prompt "Kernel page size" 2234 default PAGE_SIZE_4KB 2235 2236config PAGE_SIZE_4KB 2237 bool "4kB" 2238 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2239 help 2240 This option select the standard 4kB Linux page size. On some 2241 R3000-family processors this is the only available page size. Using 2242 4kB page size will minimize memory consumption and is therefore 2243 recommended for low memory systems. 2244 2245config PAGE_SIZE_8KB 2246 bool "8kB" 2247 depends on CPU_CAVIUM_OCTEON 2248 depends on !MIPS_VA_BITS_48 2249 help 2250 Using 8kB page size will result in higher performance kernel at 2251 the price of higher memory consumption. This option is available 2252 only on cnMIPS processors. Note that you will need a suitable Linux 2253 distribution to support this. 2254 2255config PAGE_SIZE_16KB 2256 bool "16kB" 2257 depends on !CPU_R3000 && !CPU_TX39XX 2258 help 2259 Using 16kB page size will result in higher performance kernel at 2260 the price of higher memory consumption. This option is available on 2261 all non-R3000 family processors. Note that you will need a suitable 2262 Linux distribution to support this. 2263 2264config PAGE_SIZE_32KB 2265 bool "32kB" 2266 depends on CPU_CAVIUM_OCTEON 2267 depends on !MIPS_VA_BITS_48 2268 help 2269 Using 32kB page size will result in higher performance kernel at 2270 the price of higher memory consumption. This option is available 2271 only on cnMIPS cores. Note that you will need a suitable Linux 2272 distribution to support this. 2273 2274config PAGE_SIZE_64KB 2275 bool "64kB" 2276 depends on !CPU_R3000 && !CPU_TX39XX 2277 help 2278 Using 64kB page size will result in higher performance kernel at 2279 the price of higher memory consumption. This option is available on 2280 all non-R3000 family processor. Not that at the time of this 2281 writing this option is still high experimental. 2282 2283endchoice 2284 2285config FORCE_MAX_ZONEORDER 2286 int "Maximum zone order" 2287 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2288 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2289 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2290 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2291 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2292 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2293 range 11 64 2294 default "11" 2295 help 2296 The kernel memory allocator divides physically contiguous memory 2297 blocks into "zones", where each zone is a power of two number of 2298 pages. This option selects the largest power of two that the kernel 2299 keeps in the memory allocator. If you need to allocate very large 2300 blocks of physically contiguous memory, then you may need to 2301 increase this value. 2302 2303 This config option is actually maximum order plus one. For example, 2304 a value of 11 means that the largest free memory block is 2^10 pages. 2305 2306 The page size is not necessarily 4KB. Keep this in mind 2307 when choosing a value for this option. 2308 2309config BOARD_SCACHE 2310 bool 2311 2312config IP22_CPU_SCACHE 2313 bool 2314 select BOARD_SCACHE 2315 2316# 2317# Support for a MIPS32 / MIPS64 style S-caches 2318# 2319config MIPS_CPU_SCACHE 2320 bool 2321 select BOARD_SCACHE 2322 2323config R5000_CPU_SCACHE 2324 bool 2325 select BOARD_SCACHE 2326 2327config RM7000_CPU_SCACHE 2328 bool 2329 select BOARD_SCACHE 2330 2331config SIBYTE_DMA_PAGEOPS 2332 bool "Use DMA to clear/copy pages" 2333 depends on CPU_SB1 2334 help 2335 Instead of using the CPU to zero and copy pages, use a Data Mover 2336 channel. These DMA channels are otherwise unused by the standard 2337 SiByte Linux port. Seems to give a small performance benefit. 2338 2339config CPU_HAS_PREFETCH 2340 bool 2341 2342config CPU_GENERIC_DUMP_TLB 2343 bool 2344 default y if !(CPU_R3000 || CPU_TX39XX) 2345 2346config MIPS_FP_SUPPORT 2347 bool "Floating Point support" if EXPERT 2348 default y 2349 help 2350 Select y to include support for floating point in the kernel 2351 including initialization of FPU hardware, FP context save & restore 2352 and emulation of an FPU where necessary. Without this support any 2353 userland program attempting to use floating point instructions will 2354 receive a SIGILL. 2355 2356 If you know that your userland will not attempt to use floating point 2357 instructions then you can say n here to shrink the kernel a little. 2358 2359 If unsure, say y. 2360 2361config CPU_R2300_FPU 2362 bool 2363 depends on MIPS_FP_SUPPORT 2364 default y if CPU_R3000 || CPU_TX39XX 2365 2366config CPU_R3K_TLB 2367 bool 2368 2369config CPU_R4K_FPU 2370 bool 2371 depends on MIPS_FP_SUPPORT 2372 default y if !CPU_R2300_FPU 2373 2374config CPU_R4K_CACHE_TLB 2375 bool 2376 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2377 2378config MIPS_MT_SMP 2379 bool "MIPS MT SMP support (1 TC on each available VPE)" 2380 default y 2381 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2382 select CPU_MIPSR2_IRQ_VI 2383 select CPU_MIPSR2_IRQ_EI 2384 select SYNC_R4K 2385 select MIPS_MT 2386 select SMP 2387 select SMP_UP 2388 select SYS_SUPPORTS_SMP 2389 select SYS_SUPPORTS_SCHED_SMT 2390 select MIPS_PERF_SHARED_TC_COUNTERS 2391 help 2392 This is a kernel model which is known as SMVP. This is supported 2393 on cores with the MT ASE and uses the available VPEs to implement 2394 virtual processors which supports SMP. This is equivalent to the 2395 Intel Hyperthreading feature. For further information go to 2396 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2397 2398config MIPS_MT 2399 bool 2400 2401config SCHED_SMT 2402 bool "SMT (multithreading) scheduler support" 2403 depends on SYS_SUPPORTS_SCHED_SMT 2404 default n 2405 help 2406 SMT scheduler support improves the CPU scheduler's decision making 2407 when dealing with MIPS MT enabled cores at a cost of slightly 2408 increased overhead in some places. If unsure say N here. 2409 2410config SYS_SUPPORTS_SCHED_SMT 2411 bool 2412 2413config SYS_SUPPORTS_MULTITHREADING 2414 bool 2415 2416config MIPS_MT_FPAFF 2417 bool "Dynamic FPU affinity for FP-intensive threads" 2418 default y 2419 depends on MIPS_MT_SMP 2420 2421config MIPSR2_TO_R6_EMULATOR 2422 bool "MIPS R2-to-R6 emulator" 2423 depends on CPU_MIPSR6 2424 depends on MIPS_FP_SUPPORT 2425 default y 2426 help 2427 Choose this option if you want to run non-R6 MIPS userland code. 2428 Even if you say 'Y' here, the emulator will still be disabled by 2429 default. You can enable it using the 'mipsr2emu' kernel option. 2430 The only reason this is a build-time option is to save ~14K from the 2431 final kernel image. 2432 2433config SYS_SUPPORTS_VPE_LOADER 2434 bool 2435 depends on SYS_SUPPORTS_MULTITHREADING 2436 help 2437 Indicates that the platform supports the VPE loader, and provides 2438 physical_memsize. 2439 2440config MIPS_VPE_LOADER 2441 bool "VPE loader support." 2442 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2443 select CPU_MIPSR2_IRQ_VI 2444 select CPU_MIPSR2_IRQ_EI 2445 select MIPS_MT 2446 help 2447 Includes a loader for loading an elf relocatable object 2448 onto another VPE and running it. 2449 2450config MIPS_VPE_LOADER_CMP 2451 bool 2452 default "y" 2453 depends on MIPS_VPE_LOADER && MIPS_CMP 2454 2455config MIPS_VPE_LOADER_MT 2456 bool 2457 default "y" 2458 depends on MIPS_VPE_LOADER && !MIPS_CMP 2459 2460config MIPS_VPE_LOADER_TOM 2461 bool "Load VPE program into memory hidden from linux" 2462 depends on MIPS_VPE_LOADER 2463 default y 2464 help 2465 The loader can use memory that is present but has been hidden from 2466 Linux using the kernel command line option "mem=xxMB". It's up to 2467 you to ensure the amount you put in the option and the space your 2468 program requires is less or equal to the amount physically present. 2469 2470config MIPS_VPE_APSP_API 2471 bool "Enable support for AP/SP API (RTLX)" 2472 depends on MIPS_VPE_LOADER 2473 2474config MIPS_VPE_APSP_API_CMP 2475 bool 2476 default "y" 2477 depends on MIPS_VPE_APSP_API && MIPS_CMP 2478 2479config MIPS_VPE_APSP_API_MT 2480 bool 2481 default "y" 2482 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2483 2484config MIPS_CMP 2485 bool "MIPS CMP framework support (DEPRECATED)" 2486 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2487 select SMP 2488 select SYNC_R4K 2489 select SYS_SUPPORTS_SMP 2490 select WEAK_ORDERING 2491 default n 2492 help 2493 Select this if you are using a bootloader which implements the "CMP 2494 framework" protocol (ie. YAMON) and want your kernel to make use of 2495 its ability to start secondary CPUs. 2496 2497 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2498 instead of this. 2499 2500config MIPS_CPS 2501 bool "MIPS Coherent Processing System support" 2502 depends on SYS_SUPPORTS_MIPS_CPS 2503 select MIPS_CM 2504 select MIPS_CPS_PM if HOTPLUG_CPU 2505 select SMP 2506 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2507 select SYS_SUPPORTS_HOTPLUG_CPU 2508 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2509 select SYS_SUPPORTS_SMP 2510 select WEAK_ORDERING 2511 help 2512 Select this if you wish to run an SMP kernel across multiple cores 2513 within a MIPS Coherent Processing System. When this option is 2514 enabled the kernel will probe for other cores and boot them with 2515 no external assistance. It is safe to enable this when hardware 2516 support is unavailable. 2517 2518config MIPS_CPS_PM 2519 depends on MIPS_CPS 2520 bool 2521 2522config MIPS_CM 2523 bool 2524 select MIPS_CPC 2525 2526config MIPS_CPC 2527 bool 2528 2529config SB1_PASS_2_WORKAROUNDS 2530 bool 2531 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2532 default y 2533 2534config SB1_PASS_2_1_WORKAROUNDS 2535 bool 2536 depends on CPU_SB1 && CPU_SB1_PASS_2 2537 default y 2538 2539choice 2540 prompt "SmartMIPS or microMIPS ASE support" 2541 2542config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2543 bool "None" 2544 help 2545 Select this if you want neither microMIPS nor SmartMIPS support 2546 2547config CPU_HAS_SMARTMIPS 2548 depends on SYS_SUPPORTS_SMARTMIPS 2549 bool "SmartMIPS" 2550 help 2551 SmartMIPS is a extension of the MIPS32 architecture aimed at 2552 increased security at both hardware and software level for 2553 smartcards. Enabling this option will allow proper use of the 2554 SmartMIPS instructions by Linux applications. However a kernel with 2555 this option will not work on a MIPS core without SmartMIPS core. If 2556 you don't know you probably don't have SmartMIPS and should say N 2557 here. 2558 2559config CPU_MICROMIPS 2560 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2561 bool "microMIPS" 2562 help 2563 When this option is enabled the kernel will be built using the 2564 microMIPS ISA 2565 2566endchoice 2567 2568config CPU_HAS_MSA 2569 bool "Support for the MIPS SIMD Architecture" 2570 depends on CPU_SUPPORTS_MSA 2571 depends on MIPS_FP_SUPPORT 2572 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2573 help 2574 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2575 and a set of SIMD instructions to operate on them. When this option 2576 is enabled the kernel will support allocating & switching MSA 2577 vector register contexts. If you know that your kernel will only be 2578 running on CPUs which do not support MSA or that your userland will 2579 not be making use of it then you may wish to say N here to reduce 2580 the size & complexity of your kernel. 2581 2582 If unsure, say Y. 2583 2584config CPU_HAS_WB 2585 bool 2586 2587config XKS01 2588 bool 2589 2590config CPU_HAS_DIEI 2591 depends on !CPU_DIEI_BROKEN 2592 bool 2593 2594config CPU_DIEI_BROKEN 2595 bool 2596 2597config CPU_HAS_RIXI 2598 bool 2599 2600config CPU_NO_LOAD_STORE_LR 2601 bool 2602 help 2603 CPU lacks support for unaligned load and store instructions: 2604 LWL, LWR, SWL, SWR (Load/store word left/right). 2605 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2606 systems). 2607 2608# 2609# Vectored interrupt mode is an R2 feature 2610# 2611config CPU_MIPSR2_IRQ_VI 2612 bool 2613 2614# 2615# Extended interrupt mode is an R2 feature 2616# 2617config CPU_MIPSR2_IRQ_EI 2618 bool 2619 2620config CPU_HAS_SYNC 2621 bool 2622 depends on !CPU_R3000 2623 default y 2624 2625# 2626# CPU non-features 2627# 2628config CPU_DADDI_WORKAROUNDS 2629 bool 2630 2631config CPU_R4000_WORKAROUNDS 2632 bool 2633 select CPU_R4400_WORKAROUNDS 2634 2635config CPU_R4400_WORKAROUNDS 2636 bool 2637 2638config CPU_R4X00_BUGS64 2639 bool 2640 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2641 2642config MIPS_ASID_SHIFT 2643 int 2644 default 6 if CPU_R3000 || CPU_TX39XX 2645 default 0 2646 2647config MIPS_ASID_BITS 2648 int 2649 default 0 if MIPS_ASID_BITS_VARIABLE 2650 default 6 if CPU_R3000 || CPU_TX39XX 2651 default 8 2652 2653config MIPS_ASID_BITS_VARIABLE 2654 bool 2655 2656config MIPS_CRC_SUPPORT 2657 bool 2658 2659# 2660# - Highmem only makes sense for the 32-bit kernel. 2661# - The current highmem code will only work properly on physically indexed 2662# caches such as R3000, SB1, R7000 or those that look like they're virtually 2663# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2664# moment we protect the user and offer the highmem option only on machines 2665# where it's known to be safe. This will not offer highmem on a few systems 2666# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2667# indexed CPUs but we're playing safe. 2668# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2669# know they might have memory configurations that could make use of highmem 2670# support. 2671# 2672config HIGHMEM 2673 bool "High Memory Support" 2674 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2675 2676config CPU_SUPPORTS_HIGHMEM 2677 bool 2678 2679config SYS_SUPPORTS_HIGHMEM 2680 bool 2681 2682config SYS_SUPPORTS_SMARTMIPS 2683 bool 2684 2685config SYS_SUPPORTS_MICROMIPS 2686 bool 2687 2688config SYS_SUPPORTS_MIPS16 2689 bool 2690 help 2691 This option must be set if a kernel might be executed on a MIPS16- 2692 enabled CPU even if MIPS16 is not actually being used. In other 2693 words, it makes the kernel MIPS16-tolerant. 2694 2695config CPU_SUPPORTS_MSA 2696 bool 2697 2698config ARCH_FLATMEM_ENABLE 2699 def_bool y 2700 depends on !NUMA && !CPU_LOONGSON2EF 2701 2702config ARCH_SPARSEMEM_ENABLE 2703 bool 2704 select SPARSEMEM_STATIC if !SGI_IP27 2705 2706config NUMA 2707 bool "NUMA Support" 2708 depends on SYS_SUPPORTS_NUMA 2709 help 2710 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2711 Access). This option improves performance on systems with more 2712 than two nodes; on two node systems it is generally better to 2713 leave it disabled; on single node systems leave this option 2714 disabled. 2715 2716config SYS_SUPPORTS_NUMA 2717 bool 2718 2719config HAVE_SETUP_PER_CPU_AREA 2720 def_bool y 2721 depends on NUMA 2722 2723config NEED_PER_CPU_EMBED_FIRST_CHUNK 2724 def_bool y 2725 depends on NUMA 2726 2727config RELOCATABLE 2728 bool "Relocatable kernel" 2729 depends on SYS_SUPPORTS_RELOCATABLE 2730 depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \ 2731 CPU_MIPS32_R5 || CPU_MIPS64_R5 || \ 2732 CPU_MIPS32_R6 || CPU_MIPS64_R6 || \ 2733 CPU_P5600 || CAVIUM_OCTEON_SOC 2734 help 2735 This builds a kernel image that retains relocation information 2736 so it can be loaded someplace besides the default 1MB. 2737 The relocations make the kernel binary about 15% larger, 2738 but are discarded at runtime 2739 2740config RELOCATION_TABLE_SIZE 2741 hex "Relocation table size" 2742 depends on RELOCATABLE 2743 range 0x0 0x01000000 2744 default "0x00100000" 2745 ---help--- 2746 A table of relocation data will be appended to the kernel binary 2747 and parsed at boot to fix up the relocated kernel. 2748 2749 This option allows the amount of space reserved for the table to be 2750 adjusted, although the default of 1Mb should be ok in most cases. 2751 2752 The build will fail and a valid size suggested if this is too small. 2753 2754 If unsure, leave at the default value. 2755 2756config RANDOMIZE_BASE 2757 bool "Randomize the address of the kernel image" 2758 depends on RELOCATABLE 2759 ---help--- 2760 Randomizes the physical and virtual address at which the 2761 kernel image is loaded, as a security feature that 2762 deters exploit attempts relying on knowledge of the location 2763 of kernel internals. 2764 2765 Entropy is generated using any coprocessor 0 registers available. 2766 2767 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2768 2769 If unsure, say N. 2770 2771config RANDOMIZE_BASE_MAX_OFFSET 2772 hex "Maximum kASLR offset" if EXPERT 2773 depends on RANDOMIZE_BASE 2774 range 0x0 0x40000000 if EVA || 64BIT 2775 range 0x0 0x08000000 2776 default "0x01000000" 2777 ---help--- 2778 When kASLR is active, this provides the maximum offset that will 2779 be applied to the kernel image. It should be set according to the 2780 amount of physical RAM available in the target system minus 2781 PHYSICAL_START and must be a power of 2. 2782 2783 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2784 EVA or 64-bit. The default is 16Mb. 2785 2786config NODES_SHIFT 2787 int 2788 default "6" 2789 depends on NEED_MULTIPLE_NODES 2790 2791config HW_PERF_EVENTS 2792 bool "Enable hardware performance counter support for perf events" 2793 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2794 default y 2795 help 2796 Enable hardware performance counter support for perf events. If 2797 disabled, perf events will use software events only. 2798 2799config DMI 2800 bool "Enable DMI scanning" 2801 depends on MACH_LOONGSON64 2802 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2803 default y 2804 help 2805 Enabled scanning of DMI to identify machine quirks. Say Y 2806 here unless you have verified that your setup is not 2807 affected by entries in the DMI blacklist. Required by PNP 2808 BIOS code. 2809 2810config SMP 2811 bool "Multi-Processing support" 2812 depends on SYS_SUPPORTS_SMP 2813 help 2814 This enables support for systems with more than one CPU. If you have 2815 a system with only one CPU, say N. If you have a system with more 2816 than one CPU, say Y. 2817 2818 If you say N here, the kernel will run on uni- and multiprocessor 2819 machines, but will use only one CPU of a multiprocessor machine. If 2820 you say Y here, the kernel will run on many, but not all, 2821 uniprocessor machines. On a uniprocessor machine, the kernel 2822 will run faster if you say N here. 2823 2824 People using multiprocessor machines who say Y here should also say 2825 Y to "Enhanced Real Time Clock Support", below. 2826 2827 See also the SMP-HOWTO available at 2828 <http://www.tldp.org/docs.html#howto>. 2829 2830 If you don't know what to do here, say N. 2831 2832config HOTPLUG_CPU 2833 bool "Support for hot-pluggable CPUs" 2834 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2835 help 2836 Say Y here to allow turning CPUs off and on. CPUs can be 2837 controlled through /sys/devices/system/cpu. 2838 (Note: power management support will enable this option 2839 automatically on SMP systems. ) 2840 Say N if you want to disable CPU hotplug. 2841 2842config SMP_UP 2843 bool 2844 2845config SYS_SUPPORTS_MIPS_CMP 2846 bool 2847 2848config SYS_SUPPORTS_MIPS_CPS 2849 bool 2850 2851config SYS_SUPPORTS_SMP 2852 bool 2853 2854config NR_CPUS_DEFAULT_4 2855 bool 2856 2857config NR_CPUS_DEFAULT_8 2858 bool 2859 2860config NR_CPUS_DEFAULT_16 2861 bool 2862 2863config NR_CPUS_DEFAULT_32 2864 bool 2865 2866config NR_CPUS_DEFAULT_64 2867 bool 2868 2869config NR_CPUS 2870 int "Maximum number of CPUs (2-256)" 2871 range 2 256 2872 depends on SMP 2873 default "4" if NR_CPUS_DEFAULT_4 2874 default "8" if NR_CPUS_DEFAULT_8 2875 default "16" if NR_CPUS_DEFAULT_16 2876 default "32" if NR_CPUS_DEFAULT_32 2877 default "64" if NR_CPUS_DEFAULT_64 2878 help 2879 This allows you to specify the maximum number of CPUs which this 2880 kernel will support. The maximum supported value is 32 for 32-bit 2881 kernel and 64 for 64-bit kernels; the minimum value which makes 2882 sense is 1 for Qemu (useful only for kernel debugging purposes) 2883 and 2 for all others. 2884 2885 This is purely to save memory - each supported CPU adds 2886 approximately eight kilobytes to the kernel image. For best 2887 performance should round up your number of processors to the next 2888 power of two. 2889 2890config MIPS_PERF_SHARED_TC_COUNTERS 2891 bool 2892 2893config MIPS_NR_CPU_NR_MAP_1024 2894 bool 2895 2896config MIPS_NR_CPU_NR_MAP 2897 int 2898 depends on SMP 2899 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2900 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2901 2902# 2903# Timer Interrupt Frequency Configuration 2904# 2905 2906choice 2907 prompt "Timer frequency" 2908 default HZ_250 2909 help 2910 Allows the configuration of the timer frequency. 2911 2912 config HZ_24 2913 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2914 2915 config HZ_48 2916 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2917 2918 config HZ_100 2919 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2920 2921 config HZ_128 2922 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2923 2924 config HZ_250 2925 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2926 2927 config HZ_256 2928 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2929 2930 config HZ_1000 2931 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2932 2933 config HZ_1024 2934 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2935 2936endchoice 2937 2938config SYS_SUPPORTS_24HZ 2939 bool 2940 2941config SYS_SUPPORTS_48HZ 2942 bool 2943 2944config SYS_SUPPORTS_100HZ 2945 bool 2946 2947config SYS_SUPPORTS_128HZ 2948 bool 2949 2950config SYS_SUPPORTS_250HZ 2951 bool 2952 2953config SYS_SUPPORTS_256HZ 2954 bool 2955 2956config SYS_SUPPORTS_1000HZ 2957 bool 2958 2959config SYS_SUPPORTS_1024HZ 2960 bool 2961 2962config SYS_SUPPORTS_ARBIT_HZ 2963 bool 2964 default y if !SYS_SUPPORTS_24HZ && \ 2965 !SYS_SUPPORTS_48HZ && \ 2966 !SYS_SUPPORTS_100HZ && \ 2967 !SYS_SUPPORTS_128HZ && \ 2968 !SYS_SUPPORTS_250HZ && \ 2969 !SYS_SUPPORTS_256HZ && \ 2970 !SYS_SUPPORTS_1000HZ && \ 2971 !SYS_SUPPORTS_1024HZ 2972 2973config HZ 2974 int 2975 default 24 if HZ_24 2976 default 48 if HZ_48 2977 default 100 if HZ_100 2978 default 128 if HZ_128 2979 default 250 if HZ_250 2980 default 256 if HZ_256 2981 default 1000 if HZ_1000 2982 default 1024 if HZ_1024 2983 2984config SCHED_HRTICK 2985 def_bool HIGH_RES_TIMERS 2986 2987config KEXEC 2988 bool "Kexec system call" 2989 select KEXEC_CORE 2990 help 2991 kexec is a system call that implements the ability to shutdown your 2992 current kernel, and to start another kernel. It is like a reboot 2993 but it is independent of the system firmware. And like a reboot 2994 you can start any kernel with it, not just Linux. 2995 2996 The name comes from the similarity to the exec system call. 2997 2998 It is an ongoing process to be certain the hardware in a machine 2999 is properly shutdown, so do not be surprised if this code does not 3000 initially work for you. As of this writing the exact hardware 3001 interface is strongly in flux, so no good recommendation can be 3002 made. 3003 3004config CRASH_DUMP 3005 bool "Kernel crash dumps" 3006 help 3007 Generate crash dump after being started by kexec. 3008 This should be normally only set in special crash dump kernels 3009 which are loaded in the main kernel with kexec-tools into 3010 a specially reserved region and then later executed after 3011 a crash by kdump/kexec. The crash dump kernel must be compiled 3012 to a memory address not used by the main kernel or firmware using 3013 PHYSICAL_START. 3014 3015config PHYSICAL_START 3016 hex "Physical address where the kernel is loaded" 3017 default "0xffffffff84000000" 3018 depends on CRASH_DUMP 3019 help 3020 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 3021 If you plan to use kernel for capturing the crash dump change 3022 this value to start of the reserved region (the "X" value as 3023 specified in the "crashkernel=YM@XM" command line boot parameter 3024 passed to the panic-ed kernel). 3025 3026config SECCOMP 3027 bool "Enable seccomp to safely compute untrusted bytecode" 3028 depends on PROC_FS 3029 default y 3030 help 3031 This kernel feature is useful for number crunching applications 3032 that may need to compute untrusted bytecode during their 3033 execution. By using pipes or other transports made available to 3034 the process as file descriptors supporting the read/write 3035 syscalls, it's possible to isolate those applications in 3036 their own address space using seccomp. Once seccomp is 3037 enabled via /proc/<pid>/seccomp, it cannot be disabled 3038 and the task is only allowed to execute a few safe syscalls 3039 defined by each seccomp mode. 3040 3041 If unsure, say Y. Only embedded should say N here. 3042 3043config MIPS_O32_FP64_SUPPORT 3044 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3045 depends on 32BIT || MIPS32_O32 3046 help 3047 When this is enabled, the kernel will support use of 64-bit floating 3048 point registers with binaries using the O32 ABI along with the 3049 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3050 32-bit MIPS systems this support is at the cost of increasing the 3051 size and complexity of the compiled FPU emulator. Thus if you are 3052 running a MIPS32 system and know that none of your userland binaries 3053 will require 64-bit floating point, you may wish to reduce the size 3054 of your kernel & potentially improve FP emulation performance by 3055 saying N here. 3056 3057 Although binutils currently supports use of this flag the details 3058 concerning its effect upon the O32 ABI in userland are still being 3059 worked on. In order to avoid userland becoming dependant upon current 3060 behaviour before the details have been finalised, this option should 3061 be considered experimental and only enabled by those working upon 3062 said details. 3063 3064 If unsure, say N. 3065 3066config USE_OF 3067 bool 3068 select OF 3069 select OF_EARLY_FLATTREE 3070 select IRQ_DOMAIN 3071 3072config UHI_BOOT 3073 bool 3074 3075config BUILTIN_DTB 3076 bool 3077 3078choice 3079 prompt "Kernel appended dtb support" if USE_OF 3080 default MIPS_NO_APPENDED_DTB 3081 3082 config MIPS_NO_APPENDED_DTB 3083 bool "None" 3084 help 3085 Do not enable appended dtb support. 3086 3087 config MIPS_ELF_APPENDED_DTB 3088 bool "vmlinux" 3089 help 3090 With this option, the boot code will look for a device tree binary 3091 DTB) included in the vmlinux ELF section .appended_dtb. By default 3092 it is empty and the DTB can be appended using binutils command 3093 objcopy: 3094 3095 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3096 3097 This is meant as a backward compatiblity convenience for those 3098 systems with a bootloader that can't be upgraded to accommodate 3099 the documented boot protocol using a device tree. 3100 3101 config MIPS_RAW_APPENDED_DTB 3102 bool "vmlinux.bin or vmlinuz.bin" 3103 help 3104 With this option, the boot code will look for a device tree binary 3105 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3106 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3107 3108 This is meant as a backward compatibility convenience for those 3109 systems with a bootloader that can't be upgraded to accommodate 3110 the documented boot protocol using a device tree. 3111 3112 Beware that there is very little in terms of protection against 3113 this option being confused by leftover garbage in memory that might 3114 look like a DTB header after a reboot if no actual DTB is appended 3115 to vmlinux.bin. Do not leave this option active in a production kernel 3116 if you don't intend to always append a DTB. 3117endchoice 3118 3119choice 3120 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3121 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3122 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3123 !CAVIUM_OCTEON_SOC 3124 default MIPS_CMDLINE_FROM_BOOTLOADER 3125 3126 config MIPS_CMDLINE_FROM_DTB 3127 depends on USE_OF 3128 bool "Dtb kernel arguments if available" 3129 3130 config MIPS_CMDLINE_DTB_EXTEND 3131 depends on USE_OF 3132 bool "Extend dtb kernel arguments with bootloader arguments" 3133 3134 config MIPS_CMDLINE_FROM_BOOTLOADER 3135 bool "Bootloader kernel arguments if available" 3136 3137 config MIPS_CMDLINE_BUILTIN_EXTEND 3138 depends on CMDLINE_BOOL 3139 bool "Extend builtin kernel arguments with bootloader arguments" 3140endchoice 3141 3142endmenu 3143 3144config LOCKDEP_SUPPORT 3145 bool 3146 default y 3147 3148config STACKTRACE_SUPPORT 3149 bool 3150 default y 3151 3152config PGTABLE_LEVELS 3153 int 3154 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3155 default 3 if 64BIT && !PAGE_SIZE_64KB 3156 default 2 3157 3158config MIPS_AUTO_PFN_OFFSET 3159 bool 3160 3161menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3162 3163config PCI_DRIVERS_GENERIC 3164 select PCI_DOMAINS_GENERIC if PCI 3165 bool 3166 3167config PCI_DRIVERS_LEGACY 3168 def_bool !PCI_DRIVERS_GENERIC 3169 select NO_GENERIC_PCI_IOPORT_MAP 3170 select PCI_DOMAINS if PCI 3171 3172# 3173# ISA support is now enabled via select. Too many systems still have the one 3174# or other ISA chip on the board that users don't know about so don't expect 3175# users to choose the right thing ... 3176# 3177config ISA 3178 bool 3179 3180config TC 3181 bool "TURBOchannel support" 3182 depends on MACH_DECSTATION 3183 help 3184 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3185 processors. TURBOchannel programming specifications are available 3186 at: 3187 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3188 and: 3189 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3190 Linux driver support status is documented at: 3191 <http://www.linux-mips.org/wiki/DECstation> 3192 3193config MMU 3194 bool 3195 default y 3196 3197config ARCH_MMAP_RND_BITS_MIN 3198 default 12 if 64BIT 3199 default 8 3200 3201config ARCH_MMAP_RND_BITS_MAX 3202 default 18 if 64BIT 3203 default 15 3204 3205config ARCH_MMAP_RND_COMPAT_BITS_MIN 3206 default 8 3207 3208config ARCH_MMAP_RND_COMPAT_BITS_MAX 3209 default 15 3210 3211config I8253 3212 bool 3213 select CLKSRC_I8253 3214 select CLKEVT_I8253 3215 select MIPS_EXTERNAL_TIMER 3216 3217config ZONE_DMA 3218 bool 3219 3220config ZONE_DMA32 3221 bool 3222 3223endmenu 3224 3225config TRAD_SIGNALS 3226 bool 3227 3228config MIPS32_COMPAT 3229 bool 3230 3231config COMPAT 3232 bool 3233 3234config SYSVIPC_COMPAT 3235 bool 3236 3237config MIPS32_O32 3238 bool "Kernel support for o32 binaries" 3239 depends on 64BIT 3240 select ARCH_WANT_OLD_COMPAT_IPC 3241 select COMPAT 3242 select MIPS32_COMPAT 3243 select SYSVIPC_COMPAT if SYSVIPC 3244 help 3245 Select this option if you want to run o32 binaries. These are pure 3246 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3247 existing binaries are in this format. 3248 3249 If unsure, say Y. 3250 3251config MIPS32_N32 3252 bool "Kernel support for n32 binaries" 3253 depends on 64BIT 3254 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3255 select COMPAT 3256 select MIPS32_COMPAT 3257 select SYSVIPC_COMPAT if SYSVIPC 3258 help 3259 Select this option if you want to run n32 binaries. These are 3260 64-bit binaries using 32-bit quantities for addressing and certain 3261 data that would normally be 64-bit. They are used in special 3262 cases. 3263 3264 If unsure, say N. 3265 3266config BINFMT_ELF32 3267 bool 3268 default y if MIPS32_O32 || MIPS32_N32 3269 select ELFCORE 3270 3271menu "Power management options" 3272 3273config ARCH_HIBERNATION_POSSIBLE 3274 def_bool y 3275 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3276 3277config ARCH_SUSPEND_POSSIBLE 3278 def_bool y 3279 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3280 3281source "kernel/power/Kconfig" 3282 3283endmenu 3284 3285config MIPS_EXTERNAL_TIMER 3286 bool 3287 3288menu "CPU Power Management" 3289 3290if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3291source "drivers/cpufreq/Kconfig" 3292endif 3293 3294source "drivers/cpuidle/Kconfig" 3295 3296endmenu 3297 3298source "drivers/firmware/Kconfig" 3299 3300source "arch/mips/kvm/Kconfig" 3301 3302source "arch/mips/vdso/Kconfig" 3303