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_MEMBLOCK_NODE_MAP 76 select HAVE_MOD_ARCH_SPECIFIC 77 select HAVE_NMI 78 select HAVE_OPROFILE 79 select HAVE_PERF_EVENTS 80 select HAVE_REGS_AND_STACK_ACCESS_API 81 select HAVE_RSEQ 82 select HAVE_SPARSE_SYSCALL_NR 83 select HAVE_STACKPROTECTOR 84 select HAVE_SYSCALL_TRACEPOINTS 85 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 86 select IRQ_FORCED_THREADING 87 select ISA if EISA 88 select MODULES_USE_ELF_REL if MODULES 89 select MODULES_USE_ELF_RELA if MODULES && 64BIT 90 select PERF_USE_VMALLOC 91 select RTC_LIB 92 select SYSCTL_EXCEPTION_TRACE 93 select VIRT_TO_BUS 94 95menu "Machine selection" 96 97choice 98 prompt "System type" 99 default MIPS_GENERIC 100 101config MIPS_GENERIC 102 bool "Generic board-agnostic MIPS kernel" 103 select BOOT_RAW 104 select BUILTIN_DTB 105 select CEVT_R4K 106 select CLKSRC_MIPS_GIC 107 select COMMON_CLK 108 select CPU_MIPSR2_IRQ_EI 109 select CPU_MIPSR2_IRQ_VI 110 select CSRC_R4K 111 select DMA_PERDEV_COHERENT 112 select HAVE_PCI 113 select IRQ_MIPS_CPU 114 select MIPS_AUTO_PFN_OFFSET 115 select MIPS_CPU_SCACHE 116 select MIPS_GIC 117 select MIPS_L1_CACHE_SHIFT_7 118 select NO_EXCEPT_FILL 119 select PCI_DRIVERS_GENERIC 120 select SMP_UP if SMP 121 select SWAP_IO_SPACE 122 select SYS_HAS_CPU_MIPS32_R1 123 select SYS_HAS_CPU_MIPS32_R2 124 select SYS_HAS_CPU_MIPS32_R6 125 select SYS_HAS_CPU_MIPS64_R1 126 select SYS_HAS_CPU_MIPS64_R2 127 select SYS_HAS_CPU_MIPS64_R6 128 select SYS_SUPPORTS_32BIT_KERNEL 129 select SYS_SUPPORTS_64BIT_KERNEL 130 select SYS_SUPPORTS_BIG_ENDIAN 131 select SYS_SUPPORTS_HIGHMEM 132 select SYS_SUPPORTS_LITTLE_ENDIAN 133 select SYS_SUPPORTS_MICROMIPS 134 select SYS_SUPPORTS_MIPS16 135 select SYS_SUPPORTS_MIPS_CPS 136 select SYS_SUPPORTS_MULTITHREADING 137 select SYS_SUPPORTS_RELOCATABLE 138 select SYS_SUPPORTS_SMARTMIPS 139 select UHI_BOOT 140 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 141 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 142 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 143 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 144 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 145 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 146 select USE_OF 147 help 148 Select this to build a kernel which aims to support multiple boards, 149 generally using a flattened device tree passed from the bootloader 150 using the boot protocol defined in the UHI (Unified Hosting 151 Interface) specification. 152 153config MIPS_ALCHEMY 154 bool "Alchemy processor based machines" 155 select PHYS_ADDR_T_64BIT 156 select CEVT_R4K 157 select CSRC_R4K 158 select IRQ_MIPS_CPU 159 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 160 select SYS_HAS_CPU_MIPS32_R1 161 select SYS_SUPPORTS_32BIT_KERNEL 162 select SYS_SUPPORTS_APM_EMULATION 163 select GPIOLIB 164 select SYS_SUPPORTS_ZBOOT 165 select COMMON_CLK 166 167config AR7 168 bool "Texas Instruments AR7" 169 select BOOT_ELF32 170 select DMA_NONCOHERENT 171 select CEVT_R4K 172 select CSRC_R4K 173 select IRQ_MIPS_CPU 174 select NO_EXCEPT_FILL 175 select SWAP_IO_SPACE 176 select SYS_HAS_CPU_MIPS32_R1 177 select SYS_HAS_EARLY_PRINTK 178 select SYS_SUPPORTS_32BIT_KERNEL 179 select SYS_SUPPORTS_LITTLE_ENDIAN 180 select SYS_SUPPORTS_MIPS16 181 select SYS_SUPPORTS_ZBOOT_UART16550 182 select GPIOLIB 183 select VLYNQ 184 select HAVE_CLK 185 help 186 Support for the Texas Instruments AR7 System-on-a-Chip 187 family: TNETD7100, 7200 and 7300. 188 189config ATH25 190 bool "Atheros AR231x/AR531x SoC support" 191 select CEVT_R4K 192 select CSRC_R4K 193 select DMA_NONCOHERENT 194 select IRQ_MIPS_CPU 195 select IRQ_DOMAIN 196 select SYS_HAS_CPU_MIPS32_R1 197 select SYS_SUPPORTS_BIG_ENDIAN 198 select SYS_SUPPORTS_32BIT_KERNEL 199 select SYS_HAS_EARLY_PRINTK 200 help 201 Support for Atheros AR231x and Atheros AR531x based boards 202 203config ATH79 204 bool "Atheros AR71XX/AR724X/AR913X based boards" 205 select ARCH_HAS_RESET_CONTROLLER 206 select BOOT_RAW 207 select CEVT_R4K 208 select CSRC_R4K 209 select DMA_NONCOHERENT 210 select GPIOLIB 211 select PINCTRL 212 select HAVE_CLK 213 select COMMON_CLK 214 select CLKDEV_LOOKUP 215 select IRQ_MIPS_CPU 216 select SYS_HAS_CPU_MIPS32_R2 217 select SYS_HAS_EARLY_PRINTK 218 select SYS_SUPPORTS_32BIT_KERNEL 219 select SYS_SUPPORTS_BIG_ENDIAN 220 select SYS_SUPPORTS_MIPS16 221 select SYS_SUPPORTS_ZBOOT_UART_PROM 222 select USE_OF 223 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 224 help 225 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 226 227config BMIPS_GENERIC 228 bool "Broadcom Generic BMIPS kernel" 229 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 230 select ARCH_HAS_PHYS_TO_DMA 231 select BOOT_RAW 232 select NO_EXCEPT_FILL 233 select USE_OF 234 select CEVT_R4K 235 select CSRC_R4K 236 select SYNC_R4K 237 select COMMON_CLK 238 select BCM6345_L1_IRQ 239 select BCM7038_L1_IRQ 240 select BCM7120_L2_IRQ 241 select BRCMSTB_L2_IRQ 242 select IRQ_MIPS_CPU 243 select DMA_NONCOHERENT 244 select SYS_SUPPORTS_32BIT_KERNEL 245 select SYS_SUPPORTS_LITTLE_ENDIAN 246 select SYS_SUPPORTS_BIG_ENDIAN 247 select SYS_SUPPORTS_HIGHMEM 248 select SYS_HAS_CPU_BMIPS32_3300 249 select SYS_HAS_CPU_BMIPS4350 250 select SYS_HAS_CPU_BMIPS4380 251 select SYS_HAS_CPU_BMIPS5000 252 select SWAP_IO_SPACE 253 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 254 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 255 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 256 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 257 select HARDIRQS_SW_RESEND 258 help 259 Build a generic DT-based kernel image that boots on select 260 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 261 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 262 must be set appropriately for your board. 263 264config BCM47XX 265 bool "Broadcom BCM47XX based boards" 266 select BOOT_RAW 267 select CEVT_R4K 268 select CSRC_R4K 269 select DMA_NONCOHERENT 270 select HAVE_PCI 271 select IRQ_MIPS_CPU 272 select SYS_HAS_CPU_MIPS32_R1 273 select NO_EXCEPT_FILL 274 select SYS_SUPPORTS_32BIT_KERNEL 275 select SYS_SUPPORTS_LITTLE_ENDIAN 276 select SYS_SUPPORTS_MIPS16 277 select SYS_SUPPORTS_ZBOOT 278 select SYS_HAS_EARLY_PRINTK 279 select USE_GENERIC_EARLY_PRINTK_8250 280 select GPIOLIB 281 select LEDS_GPIO_REGISTER 282 select BCM47XX_NVRAM 283 select BCM47XX_SPROM 284 select BCM47XX_SSB if !BCM47XX_BCMA 285 help 286 Support for BCM47XX based boards 287 288config BCM63XX 289 bool "Broadcom BCM63XX based boards" 290 select BOOT_RAW 291 select CEVT_R4K 292 select CSRC_R4K 293 select SYNC_R4K 294 select DMA_NONCOHERENT 295 select IRQ_MIPS_CPU 296 select SYS_SUPPORTS_32BIT_KERNEL 297 select SYS_SUPPORTS_BIG_ENDIAN 298 select SYS_HAS_EARLY_PRINTK 299 select SWAP_IO_SPACE 300 select GPIOLIB 301 select HAVE_CLK 302 select MIPS_L1_CACHE_SHIFT_4 303 select CLKDEV_LOOKUP 304 help 305 Support for BCM63XX based boards 306 307config MIPS_COBALT 308 bool "Cobalt Server" 309 select CEVT_R4K 310 select CSRC_R4K 311 select CEVT_GT641XX 312 select DMA_NONCOHERENT 313 select FORCE_PCI 314 select I8253 315 select I8259 316 select IRQ_MIPS_CPU 317 select IRQ_GT641XX 318 select PCI_GT64XXX_PCI0 319 select SYS_HAS_CPU_NEVADA 320 select SYS_HAS_EARLY_PRINTK 321 select SYS_SUPPORTS_32BIT_KERNEL 322 select SYS_SUPPORTS_64BIT_KERNEL 323 select SYS_SUPPORTS_LITTLE_ENDIAN 324 select USE_GENERIC_EARLY_PRINTK_8250 325 326config MACH_DECSTATION 327 bool "DECstations" 328 select BOOT_ELF32 329 select CEVT_DS1287 330 select CEVT_R4K if CPU_R4X00 331 select CSRC_IOASIC 332 select CSRC_R4K if CPU_R4X00 333 select CPU_DADDI_WORKAROUNDS if 64BIT 334 select CPU_R4000_WORKAROUNDS if 64BIT 335 select CPU_R4400_WORKAROUNDS if 64BIT 336 select DMA_NONCOHERENT 337 select NO_IOPORT_MAP 338 select IRQ_MIPS_CPU 339 select SYS_HAS_CPU_R3000 340 select SYS_HAS_CPU_R4X00 341 select SYS_SUPPORTS_32BIT_KERNEL 342 select SYS_SUPPORTS_64BIT_KERNEL 343 select SYS_SUPPORTS_LITTLE_ENDIAN 344 select SYS_SUPPORTS_128HZ 345 select SYS_SUPPORTS_256HZ 346 select SYS_SUPPORTS_1024HZ 347 select MIPS_L1_CACHE_SHIFT_4 348 help 349 This enables support for DEC's MIPS based workstations. For details 350 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 351 DECstation porting pages on <http://decstation.unix-ag.org/>. 352 353 If you have one of the following DECstation Models you definitely 354 want to choose R4xx0 for the CPU Type: 355 356 DECstation 5000/50 357 DECstation 5000/150 358 DECstation 5000/260 359 DECsystem 5900/260 360 361 otherwise choose R3000. 362 363config MACH_JAZZ 364 bool "Jazz family of machines" 365 select ARC_MEMORY 366 select ARC_PROMLIB 367 select ARCH_MIGHT_HAVE_PC_PARPORT 368 select ARCH_MIGHT_HAVE_PC_SERIO 369 select FW_ARC 370 select FW_ARC32 371 select ARCH_MAY_HAVE_PC_FDC 372 select CEVT_R4K 373 select CSRC_R4K 374 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 375 select GENERIC_ISA_DMA 376 select HAVE_PCSPKR_PLATFORM 377 select IRQ_MIPS_CPU 378 select I8253 379 select I8259 380 select ISA 381 select SYS_HAS_CPU_R4X00 382 select SYS_SUPPORTS_32BIT_KERNEL 383 select SYS_SUPPORTS_64BIT_KERNEL 384 select SYS_SUPPORTS_100HZ 385 help 386 This a family of machines based on the MIPS R4030 chipset which was 387 used by several vendors to build RISC/os and Windows NT workstations. 388 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 389 Olivetti M700-10 workstations. 390 391config MACH_INGENIC 392 bool "Ingenic SoC based machines" 393 select SYS_SUPPORTS_32BIT_KERNEL 394 select SYS_SUPPORTS_LITTLE_ENDIAN 395 select SYS_SUPPORTS_ZBOOT_UART16550 396 select CPU_SUPPORTS_HUGEPAGES 397 select DMA_NONCOHERENT 398 select IRQ_MIPS_CPU 399 select PINCTRL 400 select GPIOLIB 401 select COMMON_CLK 402 select GENERIC_IRQ_CHIP 403 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 404 select USE_OF 405 406config LANTIQ 407 bool "Lantiq based platforms" 408 select DMA_NONCOHERENT 409 select IRQ_MIPS_CPU 410 select CEVT_R4K 411 select CSRC_R4K 412 select SYS_HAS_CPU_MIPS32_R1 413 select SYS_HAS_CPU_MIPS32_R2 414 select SYS_SUPPORTS_BIG_ENDIAN 415 select SYS_SUPPORTS_32BIT_KERNEL 416 select SYS_SUPPORTS_MIPS16 417 select SYS_SUPPORTS_MULTITHREADING 418 select SYS_SUPPORTS_VPE_LOADER 419 select SYS_HAS_EARLY_PRINTK 420 select GPIOLIB 421 select SWAP_IO_SPACE 422 select BOOT_RAW 423 select CLKDEV_LOOKUP 424 select USE_OF 425 select PINCTRL 426 select PINCTRL_LANTIQ 427 select ARCH_HAS_RESET_CONTROLLER 428 select RESET_CONTROLLER 429 430config LASAT 431 bool "LASAT Networks platforms" 432 select CEVT_R4K 433 select CRC32 434 select CSRC_R4K 435 select DMA_NONCOHERENT 436 select SYS_HAS_EARLY_PRINTK 437 select HAVE_PCI 438 select IRQ_MIPS_CPU 439 select PCI_GT64XXX_PCI0 440 select MIPS_NILE4 441 select R5000_CPU_SCACHE 442 select SYS_HAS_CPU_R5000 443 select SYS_SUPPORTS_32BIT_KERNEL 444 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 445 select SYS_SUPPORTS_LITTLE_ENDIAN 446 447config MACH_LOONGSON32 448 bool "Loongson 32-bit family of machines" 449 select SYS_SUPPORTS_ZBOOT 450 help 451 This enables support for the Loongson-1 family of machines. 452 453 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 454 the Institute of Computing Technology (ICT), Chinese Academy of 455 Sciences (CAS). 456 457config MACH_LOONGSON2EF 458 bool "Loongson-2E/F family of machines" 459 select SYS_SUPPORTS_ZBOOT 460 help 461 This enables the support of early Loongson-2E/F family of machines. 462 463config MACH_LOONGSON64 464 bool "Loongson 64-bit family of machines" 465 select ARCH_SPARSEMEM_ENABLE 466 select ARCH_MIGHT_HAVE_PC_PARPORT 467 select ARCH_MIGHT_HAVE_PC_SERIO 468 select GENERIC_ISA_DMA_SUPPORT_BROKEN 469 select BOOT_ELF32 470 select BOARD_SCACHE 471 select CSRC_R4K 472 select CEVT_R4K 473 select CPU_HAS_WB 474 select FORCE_PCI 475 select ISA 476 select I8259 477 select IRQ_MIPS_CPU 478 select NR_CPUS_DEFAULT_4 479 select USE_GENERIC_EARLY_PRINTK_8250 480 select SYS_HAS_CPU_LOONGSON64 481 select SYS_HAS_EARLY_PRINTK 482 select SYS_SUPPORTS_SMP 483 select SYS_SUPPORTS_HOTPLUG_CPU 484 select SYS_SUPPORTS_NUMA 485 select SYS_SUPPORTS_64BIT_KERNEL 486 select SYS_SUPPORTS_HIGHMEM 487 select SYS_SUPPORTS_LITTLE_ENDIAN 488 select SYS_SUPPORTS_ZBOOT 489 select ZONE_DMA32 490 select NUMA 491 select COMMON_CLK 492 select USE_OF 493 select BUILTIN_DTB 494 help 495 This enables the support of Loongson-2/3 family of machines. 496 497 Loongson-2 and Loongson-3 are 64-bit general-purpose processors with 498 GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E 499 and Loongson-2F which will be removed), developed by the Institute 500 of Computing Technology (ICT), Chinese Academy of Sciences (CAS). 501 502config MACH_PISTACHIO 503 bool "IMG Pistachio SoC based boards" 504 select BOOT_ELF32 505 select BOOT_RAW 506 select CEVT_R4K 507 select CLKSRC_MIPS_GIC 508 select COMMON_CLK 509 select CSRC_R4K 510 select DMA_NONCOHERENT 511 select GPIOLIB 512 select IRQ_MIPS_CPU 513 select MFD_SYSCON 514 select MIPS_CPU_SCACHE 515 select MIPS_GIC 516 select PINCTRL 517 select REGULATOR 518 select SYS_HAS_CPU_MIPS32_R2 519 select SYS_SUPPORTS_32BIT_KERNEL 520 select SYS_SUPPORTS_LITTLE_ENDIAN 521 select SYS_SUPPORTS_MIPS_CPS 522 select SYS_SUPPORTS_MULTITHREADING 523 select SYS_SUPPORTS_RELOCATABLE 524 select SYS_SUPPORTS_ZBOOT 525 select SYS_HAS_EARLY_PRINTK 526 select USE_GENERIC_EARLY_PRINTK_8250 527 select USE_OF 528 help 529 This enables support for the IMG Pistachio SoC platform. 530 531config MIPS_MALTA 532 bool "MIPS Malta board" 533 select ARCH_MAY_HAVE_PC_FDC 534 select ARCH_MIGHT_HAVE_PC_PARPORT 535 select ARCH_MIGHT_HAVE_PC_SERIO 536 select BOOT_ELF32 537 select BOOT_RAW 538 select BUILTIN_DTB 539 select CEVT_R4K 540 select CLKSRC_MIPS_GIC 541 select COMMON_CLK 542 select CSRC_R4K 543 select DMA_MAYBE_COHERENT 544 select GENERIC_ISA_DMA 545 select HAVE_PCSPKR_PLATFORM 546 select HAVE_PCI 547 select I8253 548 select I8259 549 select IRQ_MIPS_CPU 550 select MIPS_BONITO64 551 select MIPS_CPU_SCACHE 552 select MIPS_GIC 553 select MIPS_L1_CACHE_SHIFT_6 554 select MIPS_MSC 555 select PCI_GT64XXX_PCI0 556 select SMP_UP if SMP 557 select SWAP_IO_SPACE 558 select SYS_HAS_CPU_MIPS32_R1 559 select SYS_HAS_CPU_MIPS32_R2 560 select SYS_HAS_CPU_MIPS32_R3_5 561 select SYS_HAS_CPU_MIPS32_R5 562 select SYS_HAS_CPU_MIPS32_R6 563 select SYS_HAS_CPU_MIPS64_R1 564 select SYS_HAS_CPU_MIPS64_R2 565 select SYS_HAS_CPU_MIPS64_R6 566 select SYS_HAS_CPU_NEVADA 567 select SYS_HAS_CPU_RM7000 568 select SYS_SUPPORTS_32BIT_KERNEL 569 select SYS_SUPPORTS_64BIT_KERNEL 570 select SYS_SUPPORTS_BIG_ENDIAN 571 select SYS_SUPPORTS_HIGHMEM 572 select SYS_SUPPORTS_LITTLE_ENDIAN 573 select SYS_SUPPORTS_MICROMIPS 574 select SYS_SUPPORTS_MIPS16 575 select SYS_SUPPORTS_MIPS_CMP 576 select SYS_SUPPORTS_MIPS_CPS 577 select SYS_SUPPORTS_MULTITHREADING 578 select SYS_SUPPORTS_RELOCATABLE 579 select SYS_SUPPORTS_SMARTMIPS 580 select SYS_SUPPORTS_VPE_LOADER 581 select SYS_SUPPORTS_ZBOOT 582 select USE_OF 583 select ZONE_DMA32 if 64BIT 584 help 585 This enables support for the MIPS Technologies Malta evaluation 586 board. 587 588config MACH_PIC32 589 bool "Microchip PIC32 Family" 590 help 591 This enables support for the Microchip PIC32 family of platforms. 592 593 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 594 microcontrollers. 595 596config NEC_MARKEINS 597 bool "NEC EMMA2RH Mark-eins board" 598 select SOC_EMMA2RH 599 select HAVE_PCI 600 help 601 This enables support for the NEC Electronics Mark-eins boards. 602 603config MACH_VR41XX 604 bool "NEC VR4100 series based machines" 605 select CEVT_R4K 606 select CSRC_R4K 607 select SYS_HAS_CPU_VR41XX 608 select SYS_SUPPORTS_MIPS16 609 select GPIOLIB 610 611config NXP_STB220 612 bool "NXP STB220 board" 613 select SOC_PNX833X 614 help 615 Support for NXP Semiconductors STB220 Development Board. 616 617config NXP_STB225 618 bool "NXP 225 board" 619 select SOC_PNX833X 620 select SOC_PNX8335 621 help 622 Support for NXP Semiconductors STB225 Development Board. 623 624config PMC_MSP 625 bool "PMC-Sierra MSP chipsets" 626 select CEVT_R4K 627 select CSRC_R4K 628 select DMA_NONCOHERENT 629 select SWAP_IO_SPACE 630 select NO_EXCEPT_FILL 631 select BOOT_RAW 632 select SYS_HAS_CPU_MIPS32_R1 633 select SYS_HAS_CPU_MIPS32_R2 634 select SYS_SUPPORTS_32BIT_KERNEL 635 select SYS_SUPPORTS_BIG_ENDIAN 636 select SYS_SUPPORTS_MIPS16 637 select IRQ_MIPS_CPU 638 select SERIAL_8250 639 select SERIAL_8250_CONSOLE 640 select USB_EHCI_BIG_ENDIAN_MMIO 641 select USB_EHCI_BIG_ENDIAN_DESC 642 help 643 This adds support for the PMC-Sierra family of Multi-Service 644 Processor System-On-A-Chips. These parts include a number 645 of integrated peripherals, interfaces and DSPs in addition to 646 a variety of MIPS cores. 647 648config RALINK 649 bool "Ralink based machines" 650 select CEVT_R4K 651 select CSRC_R4K 652 select BOOT_RAW 653 select DMA_NONCOHERENT 654 select IRQ_MIPS_CPU 655 select USE_OF 656 select SYS_HAS_CPU_MIPS32_R1 657 select SYS_HAS_CPU_MIPS32_R2 658 select SYS_SUPPORTS_32BIT_KERNEL 659 select SYS_SUPPORTS_LITTLE_ENDIAN 660 select SYS_SUPPORTS_MIPS16 661 select SYS_HAS_EARLY_PRINTK 662 select CLKDEV_LOOKUP 663 select ARCH_HAS_RESET_CONTROLLER 664 select RESET_CONTROLLER 665 666config SGI_IP22 667 bool "SGI IP22 (Indy/Indigo2)" 668 select ARC_MEMORY 669 select ARC_PROMLIB 670 select FW_ARC 671 select FW_ARC32 672 select ARCH_MIGHT_HAVE_PC_SERIO 673 select BOOT_ELF32 674 select CEVT_R4K 675 select CSRC_R4K 676 select DEFAULT_SGI_PARTITION 677 select DMA_NONCOHERENT 678 select HAVE_EISA 679 select I8253 680 select I8259 681 select IP22_CPU_SCACHE 682 select IRQ_MIPS_CPU 683 select GENERIC_ISA_DMA_SUPPORT_BROKEN 684 select SGI_HAS_I8042 685 select SGI_HAS_INDYDOG 686 select SGI_HAS_HAL2 687 select SGI_HAS_SEEQ 688 select SGI_HAS_WD93 689 select SGI_HAS_ZILOG 690 select SWAP_IO_SPACE 691 select SYS_HAS_CPU_R4X00 692 select SYS_HAS_CPU_R5000 693 select SYS_HAS_EARLY_PRINTK 694 select SYS_SUPPORTS_32BIT_KERNEL 695 select SYS_SUPPORTS_64BIT_KERNEL 696 select SYS_SUPPORTS_BIG_ENDIAN 697 select MIPS_L1_CACHE_SHIFT_7 698 help 699 This are the SGI Indy, Challenge S and Indigo2, as well as certain 700 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 701 that runs on these, say Y here. 702 703config SGI_IP27 704 bool "SGI IP27 (Origin200/2000)" 705 select ARCH_HAS_PHYS_TO_DMA 706 select ARCH_SPARSEMEM_ENABLE 707 select FW_ARC 708 select FW_ARC64 709 select ARC_CMDLINE_ONLY 710 select BOOT_ELF64 711 select DEFAULT_SGI_PARTITION 712 select SYS_HAS_EARLY_PRINTK 713 select HAVE_PCI 714 select IRQ_MIPS_CPU 715 select IRQ_DOMAIN_HIERARCHY 716 select NR_CPUS_DEFAULT_64 717 select PCI_DRIVERS_GENERIC 718 select PCI_XTALK_BRIDGE 719 select SYS_HAS_CPU_R10000 720 select SYS_SUPPORTS_64BIT_KERNEL 721 select SYS_SUPPORTS_BIG_ENDIAN 722 select SYS_SUPPORTS_NUMA 723 select SYS_SUPPORTS_SMP 724 select MIPS_L1_CACHE_SHIFT_7 725 help 726 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 727 workstations. To compile a Linux kernel that runs on these, say Y 728 here. 729 730config SGI_IP28 731 bool "SGI IP28 (Indigo2 R10k)" 732 select ARC_MEMORY 733 select ARC_PROMLIB 734 select FW_ARC 735 select FW_ARC64 736 select ARCH_MIGHT_HAVE_PC_SERIO 737 select BOOT_ELF64 738 select CEVT_R4K 739 select CSRC_R4K 740 select DEFAULT_SGI_PARTITION 741 select DMA_NONCOHERENT 742 select GENERIC_ISA_DMA_SUPPORT_BROKEN 743 select IRQ_MIPS_CPU 744 select HAVE_EISA 745 select I8253 746 select I8259 747 select SGI_HAS_I8042 748 select SGI_HAS_INDYDOG 749 select SGI_HAS_HAL2 750 select SGI_HAS_SEEQ 751 select SGI_HAS_WD93 752 select SGI_HAS_ZILOG 753 select SWAP_IO_SPACE 754 select SYS_HAS_CPU_R10000 755 select SYS_HAS_EARLY_PRINTK 756 select SYS_SUPPORTS_64BIT_KERNEL 757 select SYS_SUPPORTS_BIG_ENDIAN 758 select MIPS_L1_CACHE_SHIFT_7 759 help 760 This is the SGI Indigo2 with R10000 processor. To compile a Linux 761 kernel that runs on these, say Y here. 762 763config SGI_IP30 764 bool "SGI IP30 (Octane/Octane2)" 765 select ARCH_HAS_PHYS_TO_DMA 766 select FW_ARC 767 select FW_ARC64 768 select BOOT_ELF64 769 select CEVT_R4K 770 select CSRC_R4K 771 select SYNC_R4K if SMP 772 select ZONE_DMA32 773 select HAVE_PCI 774 select IRQ_MIPS_CPU 775 select IRQ_DOMAIN_HIERARCHY 776 select NR_CPUS_DEFAULT_2 777 select PCI_DRIVERS_GENERIC 778 select PCI_XTALK_BRIDGE 779 select SYS_HAS_EARLY_PRINTK 780 select SYS_HAS_CPU_R10000 781 select SYS_SUPPORTS_64BIT_KERNEL 782 select SYS_SUPPORTS_BIG_ENDIAN 783 select SYS_SUPPORTS_SMP 784 select MIPS_L1_CACHE_SHIFT_7 785 select ARC_MEMORY 786 help 787 These are the SGI Octane and Octane2 graphics workstations. To 788 compile a Linux kernel that runs on these, say Y here. 789 790config SGI_IP32 791 bool "SGI IP32 (O2)" 792 select ARC_MEMORY 793 select ARC_PROMLIB 794 select ARCH_HAS_PHYS_TO_DMA 795 select FW_ARC 796 select FW_ARC32 797 select BOOT_ELF32 798 select CEVT_R4K 799 select CSRC_R4K 800 select DMA_NONCOHERENT 801 select HAVE_PCI 802 select IRQ_MIPS_CPU 803 select R5000_CPU_SCACHE 804 select RM7000_CPU_SCACHE 805 select SYS_HAS_CPU_R5000 806 select SYS_HAS_CPU_R10000 if BROKEN 807 select SYS_HAS_CPU_RM7000 808 select SYS_HAS_CPU_NEVADA 809 select SYS_SUPPORTS_64BIT_KERNEL 810 select SYS_SUPPORTS_BIG_ENDIAN 811 help 812 If you want this kernel to run on SGI O2 workstation, say Y here. 813 814config SIBYTE_CRHINE 815 bool "Sibyte BCM91120C-CRhine" 816 select BOOT_ELF32 817 select SIBYTE_BCM1120 818 select SWAP_IO_SPACE 819 select SYS_HAS_CPU_SB1 820 select SYS_SUPPORTS_BIG_ENDIAN 821 select SYS_SUPPORTS_LITTLE_ENDIAN 822 823config SIBYTE_CARMEL 824 bool "Sibyte BCM91120x-Carmel" 825 select BOOT_ELF32 826 select SIBYTE_BCM1120 827 select SWAP_IO_SPACE 828 select SYS_HAS_CPU_SB1 829 select SYS_SUPPORTS_BIG_ENDIAN 830 select SYS_SUPPORTS_LITTLE_ENDIAN 831 832config SIBYTE_CRHONE 833 bool "Sibyte BCM91125C-CRhone" 834 select BOOT_ELF32 835 select SIBYTE_BCM1125 836 select SWAP_IO_SPACE 837 select SYS_HAS_CPU_SB1 838 select SYS_SUPPORTS_BIG_ENDIAN 839 select SYS_SUPPORTS_HIGHMEM 840 select SYS_SUPPORTS_LITTLE_ENDIAN 841 842config SIBYTE_RHONE 843 bool "Sibyte BCM91125E-Rhone" 844 select BOOT_ELF32 845 select SIBYTE_BCM1125H 846 select SWAP_IO_SPACE 847 select SYS_HAS_CPU_SB1 848 select SYS_SUPPORTS_BIG_ENDIAN 849 select SYS_SUPPORTS_LITTLE_ENDIAN 850 851config SIBYTE_SWARM 852 bool "Sibyte BCM91250A-SWARM" 853 select BOOT_ELF32 854 select HAVE_PATA_PLATFORM 855 select SIBYTE_SB1250 856 select SWAP_IO_SPACE 857 select SYS_HAS_CPU_SB1 858 select SYS_SUPPORTS_BIG_ENDIAN 859 select SYS_SUPPORTS_HIGHMEM 860 select SYS_SUPPORTS_LITTLE_ENDIAN 861 select ZONE_DMA32 if 64BIT 862 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 863 864config SIBYTE_LITTLESUR 865 bool "Sibyte BCM91250C2-LittleSur" 866 select BOOT_ELF32 867 select HAVE_PATA_PLATFORM 868 select SIBYTE_SB1250 869 select SWAP_IO_SPACE 870 select SYS_HAS_CPU_SB1 871 select SYS_SUPPORTS_BIG_ENDIAN 872 select SYS_SUPPORTS_HIGHMEM 873 select SYS_SUPPORTS_LITTLE_ENDIAN 874 select ZONE_DMA32 if 64BIT 875 876config SIBYTE_SENTOSA 877 bool "Sibyte BCM91250E-Sentosa" 878 select BOOT_ELF32 879 select SIBYTE_SB1250 880 select SWAP_IO_SPACE 881 select SYS_HAS_CPU_SB1 882 select SYS_SUPPORTS_BIG_ENDIAN 883 select SYS_SUPPORTS_LITTLE_ENDIAN 884 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 885 886config SIBYTE_BIGSUR 887 bool "Sibyte BCM91480B-BigSur" 888 select BOOT_ELF32 889 select NR_CPUS_DEFAULT_4 890 select SIBYTE_BCM1x80 891 select SWAP_IO_SPACE 892 select SYS_HAS_CPU_SB1 893 select SYS_SUPPORTS_BIG_ENDIAN 894 select SYS_SUPPORTS_HIGHMEM 895 select SYS_SUPPORTS_LITTLE_ENDIAN 896 select ZONE_DMA32 if 64BIT 897 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 898 899config SNI_RM 900 bool "SNI RM200/300/400" 901 select ARC_MEMORY 902 select ARC_PROMLIB 903 select FW_ARC if CPU_LITTLE_ENDIAN 904 select FW_ARC32 if CPU_LITTLE_ENDIAN 905 select FW_SNIPROM if CPU_BIG_ENDIAN 906 select ARCH_MAY_HAVE_PC_FDC 907 select ARCH_MIGHT_HAVE_PC_PARPORT 908 select ARCH_MIGHT_HAVE_PC_SERIO 909 select BOOT_ELF32 910 select CEVT_R4K 911 select CSRC_R4K 912 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 913 select DMA_NONCOHERENT 914 select GENERIC_ISA_DMA 915 select HAVE_EISA 916 select HAVE_PCSPKR_PLATFORM 917 select HAVE_PCI 918 select IRQ_MIPS_CPU 919 select I8253 920 select I8259 921 select ISA 922 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 923 select SYS_HAS_CPU_R4X00 924 select SYS_HAS_CPU_R5000 925 select SYS_HAS_CPU_R10000 926 select R5000_CPU_SCACHE 927 select SYS_HAS_EARLY_PRINTK 928 select SYS_SUPPORTS_32BIT_KERNEL 929 select SYS_SUPPORTS_64BIT_KERNEL 930 select SYS_SUPPORTS_BIG_ENDIAN 931 select SYS_SUPPORTS_HIGHMEM 932 select SYS_SUPPORTS_LITTLE_ENDIAN 933 help 934 The SNI RM200/300/400 are MIPS-based machines manufactured by 935 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 936 Technology and now in turn merged with Fujitsu. Say Y here to 937 support this machine type. 938 939config MACH_TX39XX 940 bool "Toshiba TX39 series based machines" 941 942config MACH_TX49XX 943 bool "Toshiba TX49 series based machines" 944 945config MIKROTIK_RB532 946 bool "Mikrotik RB532 boards" 947 select CEVT_R4K 948 select CSRC_R4K 949 select DMA_NONCOHERENT 950 select HAVE_PCI 951 select IRQ_MIPS_CPU 952 select SYS_HAS_CPU_MIPS32_R1 953 select SYS_SUPPORTS_32BIT_KERNEL 954 select SYS_SUPPORTS_LITTLE_ENDIAN 955 select SWAP_IO_SPACE 956 select BOOT_RAW 957 select GPIOLIB 958 select MIPS_L1_CACHE_SHIFT_4 959 help 960 Support the Mikrotik(tm) RouterBoard 532 series, 961 based on the IDT RC32434 SoC. 962 963config CAVIUM_OCTEON_SOC 964 bool "Cavium Networks Octeon SoC based boards" 965 select CEVT_R4K 966 select ARCH_HAS_PHYS_TO_DMA 967 select HAVE_RAPIDIO 968 select PHYS_ADDR_T_64BIT 969 select SYS_SUPPORTS_64BIT_KERNEL 970 select SYS_SUPPORTS_BIG_ENDIAN 971 select EDAC_SUPPORT 972 select EDAC_ATOMIC_SCRUB 973 select SYS_SUPPORTS_LITTLE_ENDIAN 974 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 975 select SYS_HAS_EARLY_PRINTK 976 select SYS_HAS_CPU_CAVIUM_OCTEON 977 select HAVE_PCI 978 select HAVE_PLAT_DELAY 979 select HAVE_PLAT_FW_INIT_CMDLINE 980 select HAVE_PLAT_MEMCPY 981 select ZONE_DMA32 982 select HOLES_IN_ZONE 983 select GPIOLIB 984 select USE_OF 985 select ARCH_SPARSEMEM_ENABLE 986 select SYS_SUPPORTS_SMP 987 select NR_CPUS_DEFAULT_64 988 select MIPS_NR_CPU_NR_MAP_1024 989 select BUILTIN_DTB 990 select MTD_COMPLEX_MAPPINGS 991 select SWIOTLB 992 select SYS_SUPPORTS_RELOCATABLE 993 help 994 This option supports all of the Octeon reference boards from Cavium 995 Networks. It builds a kernel that dynamically determines the Octeon 996 CPU type and supports all known board reference implementations. 997 Some of the supported boards are: 998 EBT3000 999 EBH3000 1000 EBH3100 1001 Thunder 1002 Kodama 1003 Hikari 1004 Say Y here for most Octeon reference boards. 1005 1006config NLM_XLR_BOARD 1007 bool "Netlogic XLR/XLS based systems" 1008 select BOOT_ELF32 1009 select NLM_COMMON 1010 select SYS_HAS_CPU_XLR 1011 select SYS_SUPPORTS_SMP 1012 select HAVE_PCI 1013 select SWAP_IO_SPACE 1014 select SYS_SUPPORTS_32BIT_KERNEL 1015 select SYS_SUPPORTS_64BIT_KERNEL 1016 select PHYS_ADDR_T_64BIT 1017 select SYS_SUPPORTS_BIG_ENDIAN 1018 select SYS_SUPPORTS_HIGHMEM 1019 select NR_CPUS_DEFAULT_32 1020 select CEVT_R4K 1021 select CSRC_R4K 1022 select IRQ_MIPS_CPU 1023 select ZONE_DMA32 if 64BIT 1024 select SYNC_R4K 1025 select SYS_HAS_EARLY_PRINTK 1026 select SYS_SUPPORTS_ZBOOT 1027 select SYS_SUPPORTS_ZBOOT_UART16550 1028 help 1029 Support for systems based on Netlogic XLR and XLS processors. 1030 Say Y here if you have a XLR or XLS based board. 1031 1032config NLM_XLP_BOARD 1033 bool "Netlogic XLP based systems" 1034 select BOOT_ELF32 1035 select NLM_COMMON 1036 select SYS_HAS_CPU_XLP 1037 select SYS_SUPPORTS_SMP 1038 select HAVE_PCI 1039 select SYS_SUPPORTS_32BIT_KERNEL 1040 select SYS_SUPPORTS_64BIT_KERNEL 1041 select PHYS_ADDR_T_64BIT 1042 select GPIOLIB 1043 select SYS_SUPPORTS_BIG_ENDIAN 1044 select SYS_SUPPORTS_LITTLE_ENDIAN 1045 select SYS_SUPPORTS_HIGHMEM 1046 select NR_CPUS_DEFAULT_32 1047 select CEVT_R4K 1048 select CSRC_R4K 1049 select IRQ_MIPS_CPU 1050 select ZONE_DMA32 if 64BIT 1051 select SYNC_R4K 1052 select SYS_HAS_EARLY_PRINTK 1053 select USE_OF 1054 select SYS_SUPPORTS_ZBOOT 1055 select SYS_SUPPORTS_ZBOOT_UART16550 1056 help 1057 This board is based on Netlogic XLP Processor. 1058 Say Y here if you have a XLP based board. 1059 1060config MIPS_PARAVIRT 1061 bool "Para-Virtualized guest system" 1062 select CEVT_R4K 1063 select CSRC_R4K 1064 select SYS_SUPPORTS_64BIT_KERNEL 1065 select SYS_SUPPORTS_32BIT_KERNEL 1066 select SYS_SUPPORTS_BIG_ENDIAN 1067 select SYS_SUPPORTS_SMP 1068 select NR_CPUS_DEFAULT_4 1069 select SYS_HAS_EARLY_PRINTK 1070 select SYS_HAS_CPU_MIPS32_R2 1071 select SYS_HAS_CPU_MIPS64_R2 1072 select SYS_HAS_CPU_CAVIUM_OCTEON 1073 select HAVE_PCI 1074 select SWAP_IO_SPACE 1075 help 1076 This option supports guest running under ???? 1077 1078endchoice 1079 1080source "arch/mips/alchemy/Kconfig" 1081source "arch/mips/ath25/Kconfig" 1082source "arch/mips/ath79/Kconfig" 1083source "arch/mips/bcm47xx/Kconfig" 1084source "arch/mips/bcm63xx/Kconfig" 1085source "arch/mips/bmips/Kconfig" 1086source "arch/mips/generic/Kconfig" 1087source "arch/mips/jazz/Kconfig" 1088source "arch/mips/jz4740/Kconfig" 1089source "arch/mips/lantiq/Kconfig" 1090source "arch/mips/lasat/Kconfig" 1091source "arch/mips/pic32/Kconfig" 1092source "arch/mips/pistachio/Kconfig" 1093source "arch/mips/pmcs-msp71xx/Kconfig" 1094source "arch/mips/ralink/Kconfig" 1095source "arch/mips/sgi-ip27/Kconfig" 1096source "arch/mips/sibyte/Kconfig" 1097source "arch/mips/txx9/Kconfig" 1098source "arch/mips/vr41xx/Kconfig" 1099source "arch/mips/cavium-octeon/Kconfig" 1100source "arch/mips/loongson2ef/Kconfig" 1101source "arch/mips/loongson32/Kconfig" 1102source "arch/mips/loongson64/Kconfig" 1103source "arch/mips/netlogic/Kconfig" 1104source "arch/mips/paravirt/Kconfig" 1105 1106endmenu 1107 1108config GENERIC_HWEIGHT 1109 bool 1110 default y 1111 1112config GENERIC_CALIBRATE_DELAY 1113 bool 1114 default y 1115 1116config SCHED_OMIT_FRAME_POINTER 1117 bool 1118 default y 1119 1120# 1121# Select some configuration options automatically based on user selections. 1122# 1123config FW_ARC 1124 bool 1125 1126config ARCH_MAY_HAVE_PC_FDC 1127 bool 1128 1129config BOOT_RAW 1130 bool 1131 1132config CEVT_BCM1480 1133 bool 1134 1135config CEVT_DS1287 1136 bool 1137 1138config CEVT_GT641XX 1139 bool 1140 1141config CEVT_R4K 1142 bool 1143 1144config CEVT_SB1250 1145 bool 1146 1147config CEVT_TXX9 1148 bool 1149 1150config CSRC_BCM1480 1151 bool 1152 1153config CSRC_IOASIC 1154 bool 1155 1156config CSRC_R4K 1157 bool 1158 1159config CSRC_SB1250 1160 bool 1161 1162config MIPS_CLOCK_VSYSCALL 1163 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1164 1165config GPIO_TXX9 1166 select GPIOLIB 1167 bool 1168 1169config FW_CFE 1170 bool 1171 1172config ARCH_SUPPORTS_UPROBES 1173 bool 1174 1175config DMA_MAYBE_COHERENT 1176 select ARCH_HAS_DMA_COHERENCE_H 1177 select DMA_NONCOHERENT 1178 bool 1179 1180config DMA_PERDEV_COHERENT 1181 bool 1182 select ARCH_HAS_SETUP_DMA_OPS 1183 select DMA_NONCOHERENT 1184 1185config DMA_NONCOHERENT 1186 bool 1187 # 1188 # MIPS allows mixing "slightly different" Cacheability and Coherency 1189 # Attribute bits. It is believed that the uncached access through 1190 # KSEG1 and the implementation specific "uncached accelerated" used 1191 # by pgprot_writcombine can be mixed, and the latter sometimes provides 1192 # significant advantages. 1193 # 1194 select ARCH_HAS_DMA_WRITE_COMBINE 1195 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1196 select ARCH_HAS_UNCACHED_SEGMENT 1197 select DMA_NONCOHERENT_MMAP 1198 select DMA_NONCOHERENT_CACHE_SYNC 1199 select NEED_DMA_MAP_STATE 1200 1201config SYS_HAS_EARLY_PRINTK 1202 bool 1203 1204config SYS_SUPPORTS_HOTPLUG_CPU 1205 bool 1206 1207config MIPS_BONITO64 1208 bool 1209 1210config MIPS_MSC 1211 bool 1212 1213config MIPS_NILE4 1214 bool 1215 1216config SYNC_R4K 1217 bool 1218 1219config MIPS_MACHINE 1220 def_bool n 1221 1222config NO_IOPORT_MAP 1223 def_bool n 1224 1225config GENERIC_CSUM 1226 def_bool CPU_NO_LOAD_STORE_LR 1227 1228config GENERIC_ISA_DMA 1229 bool 1230 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1231 select ISA_DMA_API 1232 1233config GENERIC_ISA_DMA_SUPPORT_BROKEN 1234 bool 1235 select GENERIC_ISA_DMA 1236 1237config HAVE_PLAT_DELAY 1238 bool 1239 1240config HAVE_PLAT_FW_INIT_CMDLINE 1241 bool 1242 1243config HAVE_PLAT_MEMCPY 1244 bool 1245 1246config ISA_DMA_API 1247 bool 1248 1249config HOLES_IN_ZONE 1250 bool 1251 1252config SYS_SUPPORTS_RELOCATABLE 1253 bool 1254 help 1255 Selected if the platform supports relocating the kernel. 1256 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1257 to allow access to command line and entropy sources. 1258 1259config MIPS_CBPF_JIT 1260 def_bool y 1261 depends on BPF_JIT && HAVE_CBPF_JIT 1262 1263config MIPS_EBPF_JIT 1264 def_bool y 1265 depends on BPF_JIT && HAVE_EBPF_JIT 1266 1267 1268# 1269# Endianness selection. Sufficiently obscure so many users don't know what to 1270# answer,so we try hard to limit the available choices. Also the use of a 1271# choice statement should be more obvious to the user. 1272# 1273choice 1274 prompt "Endianness selection" 1275 help 1276 Some MIPS machines can be configured for either little or big endian 1277 byte order. These modes require different kernels and a different 1278 Linux distribution. In general there is one preferred byteorder for a 1279 particular system but some systems are just as commonly used in the 1280 one or the other endianness. 1281 1282config CPU_BIG_ENDIAN 1283 bool "Big endian" 1284 depends on SYS_SUPPORTS_BIG_ENDIAN 1285 1286config CPU_LITTLE_ENDIAN 1287 bool "Little endian" 1288 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1289 1290endchoice 1291 1292config EXPORT_UASM 1293 bool 1294 1295config SYS_SUPPORTS_APM_EMULATION 1296 bool 1297 1298config SYS_SUPPORTS_BIG_ENDIAN 1299 bool 1300 1301config SYS_SUPPORTS_LITTLE_ENDIAN 1302 bool 1303 1304config SYS_SUPPORTS_HUGETLBFS 1305 bool 1306 depends on CPU_SUPPORTS_HUGEPAGES 1307 default y 1308 1309config MIPS_HUGE_TLB_SUPPORT 1310 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1311 1312config IRQ_CPU_RM7K 1313 bool 1314 1315config IRQ_MSP_SLP 1316 bool 1317 1318config IRQ_MSP_CIC 1319 bool 1320 1321config IRQ_TXX9 1322 bool 1323 1324config IRQ_GT641XX 1325 bool 1326 1327config PCI_GT64XXX_PCI0 1328 bool 1329 1330config PCI_XTALK_BRIDGE 1331 bool 1332 1333config NO_EXCEPT_FILL 1334 bool 1335 1336config SOC_EMMA2RH 1337 bool 1338 select CEVT_R4K 1339 select CSRC_R4K 1340 select DMA_NONCOHERENT 1341 select IRQ_MIPS_CPU 1342 select SWAP_IO_SPACE 1343 select SYS_HAS_CPU_R5500 1344 select SYS_SUPPORTS_32BIT_KERNEL 1345 select SYS_SUPPORTS_64BIT_KERNEL 1346 select SYS_SUPPORTS_BIG_ENDIAN 1347 1348config SOC_PNX833X 1349 bool 1350 select CEVT_R4K 1351 select CSRC_R4K 1352 select IRQ_MIPS_CPU 1353 select DMA_NONCOHERENT 1354 select SYS_HAS_CPU_MIPS32_R2 1355 select SYS_SUPPORTS_32BIT_KERNEL 1356 select SYS_SUPPORTS_LITTLE_ENDIAN 1357 select SYS_SUPPORTS_BIG_ENDIAN 1358 select SYS_SUPPORTS_MIPS16 1359 select CPU_MIPSR2_IRQ_VI 1360 1361config SOC_PNX8335 1362 bool 1363 select SOC_PNX833X 1364 1365config MIPS_SPRAM 1366 bool 1367 1368config SWAP_IO_SPACE 1369 bool 1370 1371config SGI_HAS_INDYDOG 1372 bool 1373 1374config SGI_HAS_HAL2 1375 bool 1376 1377config SGI_HAS_SEEQ 1378 bool 1379 1380config SGI_HAS_WD93 1381 bool 1382 1383config SGI_HAS_ZILOG 1384 bool 1385 1386config SGI_HAS_I8042 1387 bool 1388 1389config DEFAULT_SGI_PARTITION 1390 bool 1391 1392config FW_ARC32 1393 bool 1394 1395config FW_SNIPROM 1396 bool 1397 1398config BOOT_ELF32 1399 bool 1400 1401config MIPS_L1_CACHE_SHIFT_4 1402 bool 1403 1404config MIPS_L1_CACHE_SHIFT_5 1405 bool 1406 1407config MIPS_L1_CACHE_SHIFT_6 1408 bool 1409 1410config MIPS_L1_CACHE_SHIFT_7 1411 bool 1412 1413config MIPS_L1_CACHE_SHIFT 1414 int 1415 default "7" if MIPS_L1_CACHE_SHIFT_7 1416 default "6" if MIPS_L1_CACHE_SHIFT_6 1417 default "5" if MIPS_L1_CACHE_SHIFT_5 1418 default "4" if MIPS_L1_CACHE_SHIFT_4 1419 default "5" 1420 1421config HAVE_STD_PC_SERIAL_PORT 1422 bool 1423 1424config ARC_CMDLINE_ONLY 1425 bool 1426 1427config ARC_CONSOLE 1428 bool "ARC console support" 1429 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1430 1431config ARC_MEMORY 1432 bool 1433 1434config ARC_PROMLIB 1435 bool 1436 1437config FW_ARC64 1438 bool 1439 1440config BOOT_ELF64 1441 bool 1442 1443menu "CPU selection" 1444 1445choice 1446 prompt "CPU type" 1447 default CPU_R4X00 1448 1449config CPU_LOONGSON64 1450 bool "Loongson 64-bit CPU" 1451 depends on SYS_HAS_CPU_LOONGSON64 1452 select ARCH_HAS_PHYS_TO_DMA 1453 select CPU_MIPSR2 1454 select CPU_HAS_PREFETCH 1455 select CPU_SUPPORTS_64BIT_KERNEL 1456 select CPU_SUPPORTS_HIGHMEM 1457 select CPU_SUPPORTS_HUGEPAGES 1458 select CPU_SUPPORTS_MSA 1459 select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT 1460 select CPU_MIPSR2_IRQ_VI 1461 select WEAK_ORDERING 1462 select WEAK_REORDERING_BEYOND_LLSC 1463 select MIPS_ASID_BITS_VARIABLE 1464 select MIPS_PGD_C0_CONTEXT 1465 select MIPS_L1_CACHE_SHIFT_6 1466 select GPIOLIB 1467 select SWIOTLB 1468 help 1469 The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor 1470 cores implements the MIPS64R2 instruction set with many extensions, 1471 including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000, 1472 3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old 1473 Loongson-2E/2F is not covered here and will be removed in future. 1474 1475config LOONGSON3_ENHANCEMENT 1476 bool "New Loongson-3 CPU Enhancements" 1477 default n 1478 depends on CPU_LOONGSON64 1479 help 1480 New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A 1481 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1482 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User 1483 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1484 Fast TLB refill support, etc. 1485 1486 This option enable those enhancements which are not probed at run 1487 time. If you want a generic kernel to run on all Loongson 3 machines, 1488 please say 'N' here. If you want a high-performance kernel to run on 1489 new Loongson-3 machines only, please say 'Y' here. 1490 1491config CPU_LOONGSON3_WORKAROUNDS 1492 bool "Old Loongson-3 LLSC Workarounds" 1493 default y if SMP 1494 depends on CPU_LOONGSON64 1495 help 1496 Loongson-3 processors have the llsc issues which require workarounds. 1497 Without workarounds the system may hang unexpectedly. 1498 1499 Newer Loongson-3 will fix these issues and no workarounds are needed. 1500 The workarounds have no significant side effect on them but may 1501 decrease the performance of the system so this option should be 1502 disabled unless the kernel is intended to be run on old systems. 1503 1504 If unsure, please say Y. 1505 1506config CPU_LOONGSON2E 1507 bool "Loongson 2E" 1508 depends on SYS_HAS_CPU_LOONGSON2E 1509 select CPU_LOONGSON2EF 1510 help 1511 The Loongson 2E processor implements the MIPS III instruction set 1512 with many extensions. 1513 1514 It has an internal FPGA northbridge, which is compatible to 1515 bonito64. 1516 1517config CPU_LOONGSON2F 1518 bool "Loongson 2F" 1519 depends on SYS_HAS_CPU_LOONGSON2F 1520 select CPU_LOONGSON2EF 1521 select GPIOLIB 1522 help 1523 The Loongson 2F processor implements the MIPS III instruction set 1524 with many extensions. 1525 1526 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1527 have a similar programming interface with FPGA northbridge used in 1528 Loongson2E. 1529 1530config CPU_LOONGSON1B 1531 bool "Loongson 1B" 1532 depends on SYS_HAS_CPU_LOONGSON1B 1533 select CPU_LOONGSON32 1534 select LEDS_GPIO_REGISTER 1535 help 1536 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1537 Release 1 instruction set and part of the MIPS32 Release 2 1538 instruction set. 1539 1540config CPU_LOONGSON1C 1541 bool "Loongson 1C" 1542 depends on SYS_HAS_CPU_LOONGSON1C 1543 select CPU_LOONGSON32 1544 select LEDS_GPIO_REGISTER 1545 help 1546 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1547 Release 1 instruction set and part of the MIPS32 Release 2 1548 instruction set. 1549 1550config CPU_MIPS32_R1 1551 bool "MIPS32 Release 1" 1552 depends on SYS_HAS_CPU_MIPS32_R1 1553 select CPU_HAS_PREFETCH 1554 select CPU_SUPPORTS_32BIT_KERNEL 1555 select CPU_SUPPORTS_HIGHMEM 1556 help 1557 Choose this option to build a kernel for release 1 or later of the 1558 MIPS32 architecture. Most modern embedded systems with a 32-bit 1559 MIPS processor are based on a MIPS32 processor. If you know the 1560 specific type of processor in your system, choose those that one 1561 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1562 Release 2 of the MIPS32 architecture is available since several 1563 years so chances are you even have a MIPS32 Release 2 processor 1564 in which case you should choose CPU_MIPS32_R2 instead for better 1565 performance. 1566 1567config CPU_MIPS32_R2 1568 bool "MIPS32 Release 2" 1569 depends on SYS_HAS_CPU_MIPS32_R2 1570 select CPU_HAS_PREFETCH 1571 select CPU_SUPPORTS_32BIT_KERNEL 1572 select CPU_SUPPORTS_HIGHMEM 1573 select CPU_SUPPORTS_MSA 1574 select HAVE_KVM 1575 help 1576 Choose this option to build a kernel for release 2 or later of the 1577 MIPS32 architecture. Most modern embedded systems with a 32-bit 1578 MIPS processor are based on a MIPS32 processor. If you know the 1579 specific type of processor in your system, choose those that one 1580 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1581 1582config CPU_MIPS32_R6 1583 bool "MIPS32 Release 6" 1584 depends on SYS_HAS_CPU_MIPS32_R6 1585 select CPU_HAS_PREFETCH 1586 select CPU_NO_LOAD_STORE_LR 1587 select CPU_SUPPORTS_32BIT_KERNEL 1588 select CPU_SUPPORTS_HIGHMEM 1589 select CPU_SUPPORTS_MSA 1590 select HAVE_KVM 1591 select MIPS_O32_FP64_SUPPORT 1592 help 1593 Choose this option to build a kernel for release 6 or later of the 1594 MIPS32 architecture. New MIPS processors, starting with the Warrior 1595 family, are based on a MIPS32r6 processor. If you own an older 1596 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1597 1598config CPU_MIPS64_R1 1599 bool "MIPS64 Release 1" 1600 depends on SYS_HAS_CPU_MIPS64_R1 1601 select CPU_HAS_PREFETCH 1602 select CPU_SUPPORTS_32BIT_KERNEL 1603 select CPU_SUPPORTS_64BIT_KERNEL 1604 select CPU_SUPPORTS_HIGHMEM 1605 select CPU_SUPPORTS_HUGEPAGES 1606 help 1607 Choose this option to build a kernel for release 1 or later of the 1608 MIPS64 architecture. Many modern embedded systems with a 64-bit 1609 MIPS processor are based on a MIPS64 processor. If you know the 1610 specific type of processor in your system, choose those that one 1611 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1612 Release 2 of the MIPS64 architecture is available since several 1613 years so chances are you even have a MIPS64 Release 2 processor 1614 in which case you should choose CPU_MIPS64_R2 instead for better 1615 performance. 1616 1617config CPU_MIPS64_R2 1618 bool "MIPS64 Release 2" 1619 depends on SYS_HAS_CPU_MIPS64_R2 1620 select CPU_HAS_PREFETCH 1621 select CPU_SUPPORTS_32BIT_KERNEL 1622 select CPU_SUPPORTS_64BIT_KERNEL 1623 select CPU_SUPPORTS_HIGHMEM 1624 select CPU_SUPPORTS_HUGEPAGES 1625 select CPU_SUPPORTS_MSA 1626 select HAVE_KVM 1627 help 1628 Choose this option to build a kernel for release 2 or later of the 1629 MIPS64 architecture. Many modern embedded systems with a 64-bit 1630 MIPS processor are based on a MIPS64 processor. If you know the 1631 specific type of processor in your system, choose those that one 1632 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1633 1634config CPU_MIPS64_R6 1635 bool "MIPS64 Release 6" 1636 depends on SYS_HAS_CPU_MIPS64_R6 1637 select CPU_HAS_PREFETCH 1638 select CPU_NO_LOAD_STORE_LR 1639 select CPU_SUPPORTS_32BIT_KERNEL 1640 select CPU_SUPPORTS_64BIT_KERNEL 1641 select CPU_SUPPORTS_HIGHMEM 1642 select CPU_SUPPORTS_HUGEPAGES 1643 select CPU_SUPPORTS_MSA 1644 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1645 select HAVE_KVM 1646 help 1647 Choose this option to build a kernel for release 6 or later of the 1648 MIPS64 architecture. New MIPS processors, starting with the Warrior 1649 family, are based on a MIPS64r6 processor. If you own an older 1650 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1651 1652config CPU_R3000 1653 bool "R3000" 1654 depends on SYS_HAS_CPU_R3000 1655 select CPU_HAS_WB 1656 select CPU_R3K_TLB 1657 select CPU_SUPPORTS_32BIT_KERNEL 1658 select CPU_SUPPORTS_HIGHMEM 1659 help 1660 Please make sure to pick the right CPU type. Linux/MIPS is not 1661 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1662 *not* work on R4000 machines and vice versa. However, since most 1663 of the supported machines have an R4000 (or similar) CPU, R4x00 1664 might be a safe bet. If the resulting kernel does not work, 1665 try to recompile with R3000. 1666 1667config CPU_TX39XX 1668 bool "R39XX" 1669 depends on SYS_HAS_CPU_TX39XX 1670 select CPU_SUPPORTS_32BIT_KERNEL 1671 select CPU_R3K_TLB 1672 1673config CPU_VR41XX 1674 bool "R41xx" 1675 depends on SYS_HAS_CPU_VR41XX 1676 select CPU_SUPPORTS_32BIT_KERNEL 1677 select CPU_SUPPORTS_64BIT_KERNEL 1678 help 1679 The options selects support for the NEC VR4100 series of processors. 1680 Only choose this option if you have one of these processors as a 1681 kernel built with this option will not run on any other type of 1682 processor or vice versa. 1683 1684config CPU_R4X00 1685 bool "R4x00" 1686 depends on SYS_HAS_CPU_R4X00 1687 select CPU_SUPPORTS_32BIT_KERNEL 1688 select CPU_SUPPORTS_64BIT_KERNEL 1689 select CPU_SUPPORTS_HUGEPAGES 1690 help 1691 MIPS Technologies R4000-series processors other than 4300, including 1692 the R4000, R4400, R4600, and 4700. 1693 1694config CPU_TX49XX 1695 bool "R49XX" 1696 depends on SYS_HAS_CPU_TX49XX 1697 select CPU_HAS_PREFETCH 1698 select CPU_SUPPORTS_32BIT_KERNEL 1699 select CPU_SUPPORTS_64BIT_KERNEL 1700 select CPU_SUPPORTS_HUGEPAGES 1701 1702config CPU_R5000 1703 bool "R5000" 1704 depends on SYS_HAS_CPU_R5000 1705 select CPU_SUPPORTS_32BIT_KERNEL 1706 select CPU_SUPPORTS_64BIT_KERNEL 1707 select CPU_SUPPORTS_HUGEPAGES 1708 help 1709 MIPS Technologies R5000-series processors other than the Nevada. 1710 1711config CPU_R5500 1712 bool "R5500" 1713 depends on SYS_HAS_CPU_R5500 1714 select CPU_SUPPORTS_32BIT_KERNEL 1715 select CPU_SUPPORTS_64BIT_KERNEL 1716 select CPU_SUPPORTS_HUGEPAGES 1717 help 1718 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1719 instruction set. 1720 1721config CPU_NEVADA 1722 bool "RM52xx" 1723 depends on SYS_HAS_CPU_NEVADA 1724 select CPU_SUPPORTS_32BIT_KERNEL 1725 select CPU_SUPPORTS_64BIT_KERNEL 1726 select CPU_SUPPORTS_HUGEPAGES 1727 help 1728 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1729 1730config CPU_R10000 1731 bool "R10000" 1732 depends on SYS_HAS_CPU_R10000 1733 select CPU_HAS_PREFETCH 1734 select CPU_SUPPORTS_32BIT_KERNEL 1735 select CPU_SUPPORTS_64BIT_KERNEL 1736 select CPU_SUPPORTS_HIGHMEM 1737 select CPU_SUPPORTS_HUGEPAGES 1738 help 1739 MIPS Technologies R10000-series processors. 1740 1741config CPU_RM7000 1742 bool "RM7000" 1743 depends on SYS_HAS_CPU_RM7000 1744 select CPU_HAS_PREFETCH 1745 select CPU_SUPPORTS_32BIT_KERNEL 1746 select CPU_SUPPORTS_64BIT_KERNEL 1747 select CPU_SUPPORTS_HIGHMEM 1748 select CPU_SUPPORTS_HUGEPAGES 1749 1750config CPU_SB1 1751 bool "SB1" 1752 depends on SYS_HAS_CPU_SB1 1753 select CPU_SUPPORTS_32BIT_KERNEL 1754 select CPU_SUPPORTS_64BIT_KERNEL 1755 select CPU_SUPPORTS_HIGHMEM 1756 select CPU_SUPPORTS_HUGEPAGES 1757 select WEAK_ORDERING 1758 1759config CPU_CAVIUM_OCTEON 1760 bool "Cavium Octeon processor" 1761 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1762 select CPU_HAS_PREFETCH 1763 select CPU_SUPPORTS_64BIT_KERNEL 1764 select WEAK_ORDERING 1765 select CPU_SUPPORTS_HIGHMEM 1766 select CPU_SUPPORTS_HUGEPAGES 1767 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1768 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1769 select MIPS_L1_CACHE_SHIFT_7 1770 select HAVE_KVM 1771 help 1772 The Cavium Octeon processor is a highly integrated chip containing 1773 many ethernet hardware widgets for networking tasks. The processor 1774 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1775 Full details can be found at http://www.caviumnetworks.com. 1776 1777config CPU_BMIPS 1778 bool "Broadcom BMIPS" 1779 depends on SYS_HAS_CPU_BMIPS 1780 select CPU_MIPS32 1781 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1782 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1783 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1784 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1785 select CPU_SUPPORTS_32BIT_KERNEL 1786 select DMA_NONCOHERENT 1787 select IRQ_MIPS_CPU 1788 select SWAP_IO_SPACE 1789 select WEAK_ORDERING 1790 select CPU_SUPPORTS_HIGHMEM 1791 select CPU_HAS_PREFETCH 1792 select CPU_SUPPORTS_CPUFREQ 1793 select MIPS_EXTERNAL_TIMER 1794 help 1795 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1796 1797config CPU_XLR 1798 bool "Netlogic XLR SoC" 1799 depends on SYS_HAS_CPU_XLR 1800 select CPU_SUPPORTS_32BIT_KERNEL 1801 select CPU_SUPPORTS_64BIT_KERNEL 1802 select CPU_SUPPORTS_HIGHMEM 1803 select CPU_SUPPORTS_HUGEPAGES 1804 select WEAK_ORDERING 1805 select WEAK_REORDERING_BEYOND_LLSC 1806 help 1807 Netlogic Microsystems XLR/XLS processors. 1808 1809config CPU_XLP 1810 bool "Netlogic XLP SoC" 1811 depends on SYS_HAS_CPU_XLP 1812 select CPU_SUPPORTS_32BIT_KERNEL 1813 select CPU_SUPPORTS_64BIT_KERNEL 1814 select CPU_SUPPORTS_HIGHMEM 1815 select WEAK_ORDERING 1816 select WEAK_REORDERING_BEYOND_LLSC 1817 select CPU_HAS_PREFETCH 1818 select CPU_MIPSR2 1819 select CPU_SUPPORTS_HUGEPAGES 1820 select MIPS_ASID_BITS_VARIABLE 1821 help 1822 Netlogic Microsystems XLP processors. 1823endchoice 1824 1825config CPU_MIPS32_3_5_FEATURES 1826 bool "MIPS32 Release 3.5 Features" 1827 depends on SYS_HAS_CPU_MIPS32_R3_5 1828 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1829 help 1830 Choose this option to build a kernel for release 2 or later of the 1831 MIPS32 architecture including features from the 3.5 release such as 1832 support for Enhanced Virtual Addressing (EVA). 1833 1834config CPU_MIPS32_3_5_EVA 1835 bool "Enhanced Virtual Addressing (EVA)" 1836 depends on CPU_MIPS32_3_5_FEATURES 1837 select EVA 1838 default y 1839 help 1840 Choose this option if you want to enable the Enhanced Virtual 1841 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1842 One of its primary benefits is an increase in the maximum size 1843 of lowmem (up to 3GB). If unsure, say 'N' here. 1844 1845config CPU_MIPS32_R5_FEATURES 1846 bool "MIPS32 Release 5 Features" 1847 depends on SYS_HAS_CPU_MIPS32_R5 1848 depends on CPU_MIPS32_R2 1849 help 1850 Choose this option to build a kernel for release 2 or later of the 1851 MIPS32 architecture including features from release 5 such as 1852 support for Extended Physical Addressing (XPA). 1853 1854config CPU_MIPS32_R5_XPA 1855 bool "Extended Physical Addressing (XPA)" 1856 depends on CPU_MIPS32_R5_FEATURES 1857 depends on !EVA 1858 depends on !PAGE_SIZE_4KB 1859 depends on SYS_SUPPORTS_HIGHMEM 1860 select XPA 1861 select HIGHMEM 1862 select PHYS_ADDR_T_64BIT 1863 default n 1864 help 1865 Choose this option if you want to enable the Extended Physical 1866 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1867 benefit is to increase physical addressing equal to or greater 1868 than 40 bits. Note that this has the side effect of turning on 1869 64-bit addressing which in turn makes the PTEs 64-bit in size. 1870 If unsure, say 'N' here. 1871 1872if CPU_LOONGSON2F 1873config CPU_NOP_WORKAROUNDS 1874 bool 1875 1876config CPU_JUMP_WORKAROUNDS 1877 bool 1878 1879config CPU_LOONGSON2F_WORKAROUNDS 1880 bool "Loongson 2F Workarounds" 1881 default y 1882 select CPU_NOP_WORKAROUNDS 1883 select CPU_JUMP_WORKAROUNDS 1884 help 1885 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1886 require workarounds. Without workarounds the system may hang 1887 unexpectedly. For more information please refer to the gas 1888 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1889 1890 Loongson 2F03 and later have fixed these issues and no workarounds 1891 are needed. The workarounds have no significant side effect on them 1892 but may decrease the performance of the system so this option should 1893 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1894 systems. 1895 1896 If unsure, please say Y. 1897endif # CPU_LOONGSON2F 1898 1899config SYS_SUPPORTS_ZBOOT 1900 bool 1901 select HAVE_KERNEL_GZIP 1902 select HAVE_KERNEL_BZIP2 1903 select HAVE_KERNEL_LZ4 1904 select HAVE_KERNEL_LZMA 1905 select HAVE_KERNEL_LZO 1906 select HAVE_KERNEL_XZ 1907 1908config SYS_SUPPORTS_ZBOOT_UART16550 1909 bool 1910 select SYS_SUPPORTS_ZBOOT 1911 1912config SYS_SUPPORTS_ZBOOT_UART_PROM 1913 bool 1914 select SYS_SUPPORTS_ZBOOT 1915 1916config CPU_LOONGSON2EF 1917 bool 1918 select CPU_SUPPORTS_32BIT_KERNEL 1919 select CPU_SUPPORTS_64BIT_KERNEL 1920 select CPU_SUPPORTS_HIGHMEM 1921 select CPU_SUPPORTS_HUGEPAGES 1922 select ARCH_HAS_PHYS_TO_DMA 1923 1924config CPU_LOONGSON32 1925 bool 1926 select CPU_MIPS32 1927 select CPU_MIPSR2 1928 select CPU_HAS_PREFETCH 1929 select CPU_SUPPORTS_32BIT_KERNEL 1930 select CPU_SUPPORTS_HIGHMEM 1931 select CPU_SUPPORTS_CPUFREQ 1932 1933config CPU_BMIPS32_3300 1934 select SMP_UP if SMP 1935 bool 1936 1937config CPU_BMIPS4350 1938 bool 1939 select SYS_SUPPORTS_SMP 1940 select SYS_SUPPORTS_HOTPLUG_CPU 1941 1942config CPU_BMIPS4380 1943 bool 1944 select MIPS_L1_CACHE_SHIFT_6 1945 select SYS_SUPPORTS_SMP 1946 select SYS_SUPPORTS_HOTPLUG_CPU 1947 select CPU_HAS_RIXI 1948 1949config CPU_BMIPS5000 1950 bool 1951 select MIPS_CPU_SCACHE 1952 select MIPS_L1_CACHE_SHIFT_7 1953 select SYS_SUPPORTS_SMP 1954 select SYS_SUPPORTS_HOTPLUG_CPU 1955 select CPU_HAS_RIXI 1956 1957config SYS_HAS_CPU_LOONGSON64 1958 bool 1959 select CPU_SUPPORTS_CPUFREQ 1960 select CPU_HAS_RIXI 1961 1962config SYS_HAS_CPU_LOONGSON2E 1963 bool 1964 1965config SYS_HAS_CPU_LOONGSON2F 1966 bool 1967 select CPU_SUPPORTS_CPUFREQ 1968 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1969 1970config SYS_HAS_CPU_LOONGSON1B 1971 bool 1972 1973config SYS_HAS_CPU_LOONGSON1C 1974 bool 1975 1976config SYS_HAS_CPU_MIPS32_R1 1977 bool 1978 1979config SYS_HAS_CPU_MIPS32_R2 1980 bool 1981 1982config SYS_HAS_CPU_MIPS32_R3_5 1983 bool 1984 1985config SYS_HAS_CPU_MIPS32_R5 1986 bool 1987 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1988 1989config SYS_HAS_CPU_MIPS32_R6 1990 bool 1991 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1992 1993config SYS_HAS_CPU_MIPS64_R1 1994 bool 1995 1996config SYS_HAS_CPU_MIPS64_R2 1997 bool 1998 1999config SYS_HAS_CPU_MIPS64_R6 2000 bool 2001 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2002 2003config SYS_HAS_CPU_R3000 2004 bool 2005 2006config SYS_HAS_CPU_TX39XX 2007 bool 2008 2009config SYS_HAS_CPU_VR41XX 2010 bool 2011 2012config SYS_HAS_CPU_R4X00 2013 bool 2014 2015config SYS_HAS_CPU_TX49XX 2016 bool 2017 2018config SYS_HAS_CPU_R5000 2019 bool 2020 2021config SYS_HAS_CPU_R5500 2022 bool 2023 2024config SYS_HAS_CPU_NEVADA 2025 bool 2026 2027config SYS_HAS_CPU_R10000 2028 bool 2029 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 2030 2031config SYS_HAS_CPU_RM7000 2032 bool 2033 2034config SYS_HAS_CPU_SB1 2035 bool 2036 2037config SYS_HAS_CPU_CAVIUM_OCTEON 2038 bool 2039 2040config SYS_HAS_CPU_BMIPS 2041 bool 2042 2043config SYS_HAS_CPU_BMIPS32_3300 2044 bool 2045 select SYS_HAS_CPU_BMIPS 2046 2047config SYS_HAS_CPU_BMIPS4350 2048 bool 2049 select SYS_HAS_CPU_BMIPS 2050 2051config SYS_HAS_CPU_BMIPS4380 2052 bool 2053 select SYS_HAS_CPU_BMIPS 2054 2055config SYS_HAS_CPU_BMIPS5000 2056 bool 2057 select SYS_HAS_CPU_BMIPS 2058 select ARCH_HAS_SYNC_DMA_FOR_CPU 2059 2060config SYS_HAS_CPU_XLR 2061 bool 2062 2063config SYS_HAS_CPU_XLP 2064 bool 2065 2066# 2067# CPU may reorder R->R, R->W, W->R, W->W 2068# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2069# 2070config WEAK_ORDERING 2071 bool 2072 2073# 2074# CPU may reorder reads and writes beyond LL/SC 2075# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2076# 2077config WEAK_REORDERING_BEYOND_LLSC 2078 bool 2079endmenu 2080 2081# 2082# These two indicate any level of the MIPS32 and MIPS64 architecture 2083# 2084config CPU_MIPS32 2085 bool 2086 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2087 2088config CPU_MIPS64 2089 bool 2090 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2091 2092# 2093# These indicate the revision of the architecture 2094# 2095config CPU_MIPSR1 2096 bool 2097 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2098 2099config CPU_MIPSR2 2100 bool 2101 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2102 select CPU_HAS_RIXI 2103 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2104 select MIPS_SPRAM 2105 2106config CPU_MIPSR6 2107 bool 2108 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2109 select CPU_HAS_RIXI 2110 select CPU_HAS_DIEI if !CPU_DIEI_BROKEN 2111 select HAVE_ARCH_BITREVERSE 2112 select MIPS_ASID_BITS_VARIABLE 2113 select MIPS_CRC_SUPPORT 2114 select MIPS_SPRAM 2115 2116config TARGET_ISA_REV 2117 int 2118 default 1 if CPU_MIPSR1 2119 default 2 if CPU_MIPSR2 2120 default 6 if CPU_MIPSR6 2121 default 0 2122 help 2123 Reflects the ISA revision being targeted by the kernel build. This 2124 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2125 2126config EVA 2127 bool 2128 2129config XPA 2130 bool 2131 2132config SYS_SUPPORTS_32BIT_KERNEL 2133 bool 2134config SYS_SUPPORTS_64BIT_KERNEL 2135 bool 2136config CPU_SUPPORTS_32BIT_KERNEL 2137 bool 2138config CPU_SUPPORTS_64BIT_KERNEL 2139 bool 2140config CPU_SUPPORTS_CPUFREQ 2141 bool 2142config CPU_SUPPORTS_ADDRWINCFG 2143 bool 2144config CPU_SUPPORTS_HUGEPAGES 2145 bool 2146 depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) 2147config MIPS_PGD_C0_CONTEXT 2148 bool 2149 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2150 2151# 2152# Set to y for ptrace access to watch registers. 2153# 2154config HARDWARE_WATCHPOINTS 2155 bool 2156 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2157 2158menu "Kernel type" 2159 2160choice 2161 prompt "Kernel code model" 2162 help 2163 You should only select this option if you have a workload that 2164 actually benefits from 64-bit processing or if your machine has 2165 large memory. You will only be presented a single option in this 2166 menu if your system does not support both 32-bit and 64-bit kernels. 2167 2168config 32BIT 2169 bool "32-bit kernel" 2170 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2171 select TRAD_SIGNALS 2172 help 2173 Select this option if you want to build a 32-bit kernel. 2174 2175config 64BIT 2176 bool "64-bit kernel" 2177 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2178 help 2179 Select this option if you want to build a 64-bit kernel. 2180 2181endchoice 2182 2183config KVM_GUEST 2184 bool "KVM Guest Kernel" 2185 depends on BROKEN_ON_SMP 2186 help 2187 Select this option if building a guest kernel for KVM (Trap & Emulate) 2188 mode. 2189 2190config KVM_GUEST_TIMER_FREQ 2191 int "Count/Compare Timer Frequency (MHz)" 2192 depends on KVM_GUEST 2193 default 100 2194 help 2195 Set this to non-zero if building a guest kernel for KVM to skip RTC 2196 emulation when determining guest CPU Frequency. Instead, the guest's 2197 timer frequency is specified directly. 2198 2199config MIPS_VA_BITS_48 2200 bool "48 bits virtual memory" 2201 depends on 64BIT 2202 help 2203 Support a maximum at least 48 bits of application virtual 2204 memory. Default is 40 bits or less, depending on the CPU. 2205 For page sizes 16k and above, this option results in a small 2206 memory overhead for page tables. For 4k page size, a fourth 2207 level of page tables is added which imposes both a memory 2208 overhead as well as slower TLB fault handling. 2209 2210 If unsure, say N. 2211 2212choice 2213 prompt "Kernel page size" 2214 default PAGE_SIZE_4KB 2215 2216config PAGE_SIZE_4KB 2217 bool "4kB" 2218 depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64 2219 help 2220 This option select the standard 4kB Linux page size. On some 2221 R3000-family processors this is the only available page size. Using 2222 4kB page size will minimize memory consumption and is therefore 2223 recommended for low memory systems. 2224 2225config PAGE_SIZE_8KB 2226 bool "8kB" 2227 depends on CPU_CAVIUM_OCTEON 2228 depends on !MIPS_VA_BITS_48 2229 help 2230 Using 8kB page size will result in higher performance kernel at 2231 the price of higher memory consumption. This option is available 2232 only on cnMIPS processors. Note that you will need a suitable Linux 2233 distribution to support this. 2234 2235config PAGE_SIZE_16KB 2236 bool "16kB" 2237 depends on !CPU_R3000 && !CPU_TX39XX 2238 help 2239 Using 16kB page size will result in higher performance kernel at 2240 the price of higher memory consumption. This option is available on 2241 all non-R3000 family processors. Note that you will need a suitable 2242 Linux distribution to support this. 2243 2244config PAGE_SIZE_32KB 2245 bool "32kB" 2246 depends on CPU_CAVIUM_OCTEON 2247 depends on !MIPS_VA_BITS_48 2248 help 2249 Using 32kB page size will result in higher performance kernel at 2250 the price of higher memory consumption. This option is available 2251 only on cnMIPS cores. Note that you will need a suitable Linux 2252 distribution to support this. 2253 2254config PAGE_SIZE_64KB 2255 bool "64kB" 2256 depends on !CPU_R3000 && !CPU_TX39XX 2257 help 2258 Using 64kB page size will result in higher performance kernel at 2259 the price of higher memory consumption. This option is available on 2260 all non-R3000 family processor. Not that at the time of this 2261 writing this option is still high experimental. 2262 2263endchoice 2264 2265config FORCE_MAX_ZONEORDER 2266 int "Maximum zone order" 2267 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2268 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2269 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2270 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2271 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2272 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2273 range 11 64 2274 default "11" 2275 help 2276 The kernel memory allocator divides physically contiguous memory 2277 blocks into "zones", where each zone is a power of two number of 2278 pages. This option selects the largest power of two that the kernel 2279 keeps in the memory allocator. If you need to allocate very large 2280 blocks of physically contiguous memory, then you may need to 2281 increase this value. 2282 2283 This config option is actually maximum order plus one. For example, 2284 a value of 11 means that the largest free memory block is 2^10 pages. 2285 2286 The page size is not necessarily 4KB. Keep this in mind 2287 when choosing a value for this option. 2288 2289config BOARD_SCACHE 2290 bool 2291 2292config IP22_CPU_SCACHE 2293 bool 2294 select BOARD_SCACHE 2295 2296# 2297# Support for a MIPS32 / MIPS64 style S-caches 2298# 2299config MIPS_CPU_SCACHE 2300 bool 2301 select BOARD_SCACHE 2302 2303config R5000_CPU_SCACHE 2304 bool 2305 select BOARD_SCACHE 2306 2307config RM7000_CPU_SCACHE 2308 bool 2309 select BOARD_SCACHE 2310 2311config SIBYTE_DMA_PAGEOPS 2312 bool "Use DMA to clear/copy pages" 2313 depends on CPU_SB1 2314 help 2315 Instead of using the CPU to zero and copy pages, use a Data Mover 2316 channel. These DMA channels are otherwise unused by the standard 2317 SiByte Linux port. Seems to give a small performance benefit. 2318 2319config CPU_HAS_PREFETCH 2320 bool 2321 2322config CPU_GENERIC_DUMP_TLB 2323 bool 2324 default y if !(CPU_R3000 || CPU_TX39XX) 2325 2326config MIPS_FP_SUPPORT 2327 bool "Floating Point support" if EXPERT 2328 default y 2329 help 2330 Select y to include support for floating point in the kernel 2331 including initialization of FPU hardware, FP context save & restore 2332 and emulation of an FPU where necessary. Without this support any 2333 userland program attempting to use floating point instructions will 2334 receive a SIGILL. 2335 2336 If you know that your userland will not attempt to use floating point 2337 instructions then you can say n here to shrink the kernel a little. 2338 2339 If unsure, say y. 2340 2341config CPU_R2300_FPU 2342 bool 2343 depends on MIPS_FP_SUPPORT 2344 default y if CPU_R3000 || CPU_TX39XX 2345 2346config CPU_R3K_TLB 2347 bool 2348 2349config CPU_R4K_FPU 2350 bool 2351 depends on MIPS_FP_SUPPORT 2352 default y if !CPU_R2300_FPU 2353 2354config CPU_R4K_CACHE_TLB 2355 bool 2356 default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON) 2357 2358config MIPS_MT_SMP 2359 bool "MIPS MT SMP support (1 TC on each available VPE)" 2360 default y 2361 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2362 select CPU_MIPSR2_IRQ_VI 2363 select CPU_MIPSR2_IRQ_EI 2364 select SYNC_R4K 2365 select MIPS_MT 2366 select SMP 2367 select SMP_UP 2368 select SYS_SUPPORTS_SMP 2369 select SYS_SUPPORTS_SCHED_SMT 2370 select MIPS_PERF_SHARED_TC_COUNTERS 2371 help 2372 This is a kernel model which is known as SMVP. This is supported 2373 on cores with the MT ASE and uses the available VPEs to implement 2374 virtual processors which supports SMP. This is equivalent to the 2375 Intel Hyperthreading feature. For further information go to 2376 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2377 2378config MIPS_MT 2379 bool 2380 2381config SCHED_SMT 2382 bool "SMT (multithreading) scheduler support" 2383 depends on SYS_SUPPORTS_SCHED_SMT 2384 default n 2385 help 2386 SMT scheduler support improves the CPU scheduler's decision making 2387 when dealing with MIPS MT enabled cores at a cost of slightly 2388 increased overhead in some places. If unsure say N here. 2389 2390config SYS_SUPPORTS_SCHED_SMT 2391 bool 2392 2393config SYS_SUPPORTS_MULTITHREADING 2394 bool 2395 2396config MIPS_MT_FPAFF 2397 bool "Dynamic FPU affinity for FP-intensive threads" 2398 default y 2399 depends on MIPS_MT_SMP 2400 2401config MIPSR2_TO_R6_EMULATOR 2402 bool "MIPS R2-to-R6 emulator" 2403 depends on CPU_MIPSR6 2404 depends on MIPS_FP_SUPPORT 2405 default y 2406 help 2407 Choose this option if you want to run non-R6 MIPS userland code. 2408 Even if you say 'Y' here, the emulator will still be disabled by 2409 default. You can enable it using the 'mipsr2emu' kernel option. 2410 The only reason this is a build-time option is to save ~14K from the 2411 final kernel image. 2412 2413config SYS_SUPPORTS_VPE_LOADER 2414 bool 2415 depends on SYS_SUPPORTS_MULTITHREADING 2416 help 2417 Indicates that the platform supports the VPE loader, and provides 2418 physical_memsize. 2419 2420config MIPS_VPE_LOADER 2421 bool "VPE loader support." 2422 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2423 select CPU_MIPSR2_IRQ_VI 2424 select CPU_MIPSR2_IRQ_EI 2425 select MIPS_MT 2426 help 2427 Includes a loader for loading an elf relocatable object 2428 onto another VPE and running it. 2429 2430config MIPS_VPE_LOADER_CMP 2431 bool 2432 default "y" 2433 depends on MIPS_VPE_LOADER && MIPS_CMP 2434 2435config MIPS_VPE_LOADER_MT 2436 bool 2437 default "y" 2438 depends on MIPS_VPE_LOADER && !MIPS_CMP 2439 2440config MIPS_VPE_LOADER_TOM 2441 bool "Load VPE program into memory hidden from linux" 2442 depends on MIPS_VPE_LOADER 2443 default y 2444 help 2445 The loader can use memory that is present but has been hidden from 2446 Linux using the kernel command line option "mem=xxMB". It's up to 2447 you to ensure the amount you put in the option and the space your 2448 program requires is less or equal to the amount physically present. 2449 2450config MIPS_VPE_APSP_API 2451 bool "Enable support for AP/SP API (RTLX)" 2452 depends on MIPS_VPE_LOADER 2453 2454config MIPS_VPE_APSP_API_CMP 2455 bool 2456 default "y" 2457 depends on MIPS_VPE_APSP_API && MIPS_CMP 2458 2459config MIPS_VPE_APSP_API_MT 2460 bool 2461 default "y" 2462 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2463 2464config MIPS_CMP 2465 bool "MIPS CMP framework support (DEPRECATED)" 2466 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2467 select SMP 2468 select SYNC_R4K 2469 select SYS_SUPPORTS_SMP 2470 select WEAK_ORDERING 2471 default n 2472 help 2473 Select this if you are using a bootloader which implements the "CMP 2474 framework" protocol (ie. YAMON) and want your kernel to make use of 2475 its ability to start secondary CPUs. 2476 2477 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2478 instead of this. 2479 2480config MIPS_CPS 2481 bool "MIPS Coherent Processing System support" 2482 depends on SYS_SUPPORTS_MIPS_CPS 2483 select MIPS_CM 2484 select MIPS_CPS_PM if HOTPLUG_CPU 2485 select SMP 2486 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2487 select SYS_SUPPORTS_HOTPLUG_CPU 2488 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2489 select SYS_SUPPORTS_SMP 2490 select WEAK_ORDERING 2491 help 2492 Select this if you wish to run an SMP kernel across multiple cores 2493 within a MIPS Coherent Processing System. When this option is 2494 enabled the kernel will probe for other cores and boot them with 2495 no external assistance. It is safe to enable this when hardware 2496 support is unavailable. 2497 2498config MIPS_CPS_PM 2499 depends on MIPS_CPS 2500 bool 2501 2502config MIPS_CM 2503 bool 2504 select MIPS_CPC 2505 2506config MIPS_CPC 2507 bool 2508 2509config SB1_PASS_2_WORKAROUNDS 2510 bool 2511 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2512 default y 2513 2514config SB1_PASS_2_1_WORKAROUNDS 2515 bool 2516 depends on CPU_SB1 && CPU_SB1_PASS_2 2517 default y 2518 2519choice 2520 prompt "SmartMIPS or microMIPS ASE support" 2521 2522config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2523 bool "None" 2524 help 2525 Select this if you want neither microMIPS nor SmartMIPS support 2526 2527config CPU_HAS_SMARTMIPS 2528 depends on SYS_SUPPORTS_SMARTMIPS 2529 bool "SmartMIPS" 2530 help 2531 SmartMIPS is a extension of the MIPS32 architecture aimed at 2532 increased security at both hardware and software level for 2533 smartcards. Enabling this option will allow proper use of the 2534 SmartMIPS instructions by Linux applications. However a kernel with 2535 this option will not work on a MIPS core without SmartMIPS core. If 2536 you don't know you probably don't have SmartMIPS and should say N 2537 here. 2538 2539config CPU_MICROMIPS 2540 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2541 bool "microMIPS" 2542 help 2543 When this option is enabled the kernel will be built using the 2544 microMIPS ISA 2545 2546endchoice 2547 2548config CPU_HAS_MSA 2549 bool "Support for the MIPS SIMD Architecture" 2550 depends on CPU_SUPPORTS_MSA 2551 depends on MIPS_FP_SUPPORT 2552 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2553 help 2554 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2555 and a set of SIMD instructions to operate on them. When this option 2556 is enabled the kernel will support allocating & switching MSA 2557 vector register contexts. If you know that your kernel will only be 2558 running on CPUs which do not support MSA or that your userland will 2559 not be making use of it then you may wish to say N here to reduce 2560 the size & complexity of your kernel. 2561 2562 If unsure, say Y. 2563 2564config CPU_HAS_WB 2565 bool 2566 2567config XKS01 2568 bool 2569 2570config CPU_HAS_DIEI 2571 depends on !CPU_DIEI_BROKEN 2572 bool 2573 2574config CPU_DIEI_BROKEN 2575 bool 2576 2577config CPU_HAS_RIXI 2578 bool 2579 2580config CPU_NO_LOAD_STORE_LR 2581 bool 2582 help 2583 CPU lacks support for unaligned load and store instructions: 2584 LWL, LWR, SWL, SWR (Load/store word left/right). 2585 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit 2586 systems). 2587 2588# 2589# Vectored interrupt mode is an R2 feature 2590# 2591config CPU_MIPSR2_IRQ_VI 2592 bool 2593 2594# 2595# Extended interrupt mode is an R2 feature 2596# 2597config CPU_MIPSR2_IRQ_EI 2598 bool 2599 2600config CPU_HAS_SYNC 2601 bool 2602 depends on !CPU_R3000 2603 default y 2604 2605# 2606# CPU non-features 2607# 2608config CPU_DADDI_WORKAROUNDS 2609 bool 2610 2611config CPU_R4000_WORKAROUNDS 2612 bool 2613 select CPU_R4400_WORKAROUNDS 2614 2615config CPU_R4400_WORKAROUNDS 2616 bool 2617 2618config CPU_R4X00_BUGS64 2619 bool 2620 default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1) 2621 2622config MIPS_ASID_SHIFT 2623 int 2624 default 6 if CPU_R3000 || CPU_TX39XX 2625 default 0 2626 2627config MIPS_ASID_BITS 2628 int 2629 default 0 if MIPS_ASID_BITS_VARIABLE 2630 default 6 if CPU_R3000 || CPU_TX39XX 2631 default 8 2632 2633config MIPS_ASID_BITS_VARIABLE 2634 bool 2635 2636config MIPS_CRC_SUPPORT 2637 bool 2638 2639# 2640# - Highmem only makes sense for the 32-bit kernel. 2641# - The current highmem code will only work properly on physically indexed 2642# caches such as R3000, SB1, R7000 or those that look like they're virtually 2643# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2644# moment we protect the user and offer the highmem option only on machines 2645# where it's known to be safe. This will not offer highmem on a few systems 2646# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2647# indexed CPUs but we're playing safe. 2648# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2649# know they might have memory configurations that could make use of highmem 2650# support. 2651# 2652config HIGHMEM 2653 bool "High Memory Support" 2654 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2655 2656config CPU_SUPPORTS_HIGHMEM 2657 bool 2658 2659config SYS_SUPPORTS_HIGHMEM 2660 bool 2661 2662config SYS_SUPPORTS_SMARTMIPS 2663 bool 2664 2665config SYS_SUPPORTS_MICROMIPS 2666 bool 2667 2668config SYS_SUPPORTS_MIPS16 2669 bool 2670 help 2671 This option must be set if a kernel might be executed on a MIPS16- 2672 enabled CPU even if MIPS16 is not actually being used. In other 2673 words, it makes the kernel MIPS16-tolerant. 2674 2675config CPU_SUPPORTS_MSA 2676 bool 2677 2678config ARCH_FLATMEM_ENABLE 2679 def_bool y 2680 depends on !NUMA && !CPU_LOONGSON2EF 2681 2682config ARCH_SPARSEMEM_ENABLE 2683 bool 2684 select SPARSEMEM_STATIC if !SGI_IP27 2685 2686config NUMA 2687 bool "NUMA Support" 2688 depends on SYS_SUPPORTS_NUMA 2689 help 2690 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2691 Access). This option improves performance on systems with more 2692 than two nodes; on two node systems it is generally better to 2693 leave it disabled; on single node systems leave this option 2694 disabled. 2695 2696config SYS_SUPPORTS_NUMA 2697 bool 2698 2699config HAVE_SETUP_PER_CPU_AREA 2700 def_bool y 2701 depends on NUMA 2702 2703config NEED_PER_CPU_EMBED_FIRST_CHUNK 2704 def_bool y 2705 depends on NUMA 2706 2707config RELOCATABLE 2708 bool "Relocatable kernel" 2709 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2710 help 2711 This builds a kernel image that retains relocation information 2712 so it can be loaded someplace besides the default 1MB. 2713 The relocations make the kernel binary about 15% larger, 2714 but are discarded at runtime 2715 2716config RELOCATION_TABLE_SIZE 2717 hex "Relocation table size" 2718 depends on RELOCATABLE 2719 range 0x0 0x01000000 2720 default "0x00100000" 2721 ---help--- 2722 A table of relocation data will be appended to the kernel binary 2723 and parsed at boot to fix up the relocated kernel. 2724 2725 This option allows the amount of space reserved for the table to be 2726 adjusted, although the default of 1Mb should be ok in most cases. 2727 2728 The build will fail and a valid size suggested if this is too small. 2729 2730 If unsure, leave at the default value. 2731 2732config RANDOMIZE_BASE 2733 bool "Randomize the address of the kernel image" 2734 depends on RELOCATABLE 2735 ---help--- 2736 Randomizes the physical and virtual address at which the 2737 kernel image is loaded, as a security feature that 2738 deters exploit attempts relying on knowledge of the location 2739 of kernel internals. 2740 2741 Entropy is generated using any coprocessor 0 registers available. 2742 2743 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2744 2745 If unsure, say N. 2746 2747config RANDOMIZE_BASE_MAX_OFFSET 2748 hex "Maximum kASLR offset" if EXPERT 2749 depends on RANDOMIZE_BASE 2750 range 0x0 0x40000000 if EVA || 64BIT 2751 range 0x0 0x08000000 2752 default "0x01000000" 2753 ---help--- 2754 When kASLR is active, this provides the maximum offset that will 2755 be applied to the kernel image. It should be set according to the 2756 amount of physical RAM available in the target system minus 2757 PHYSICAL_START and must be a power of 2. 2758 2759 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2760 EVA or 64-bit. The default is 16Mb. 2761 2762config NODES_SHIFT 2763 int 2764 default "6" 2765 depends on NEED_MULTIPLE_NODES 2766 2767config HW_PERF_EVENTS 2768 bool "Enable hardware performance counter support for perf events" 2769 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64) 2770 default y 2771 help 2772 Enable hardware performance counter support for perf events. If 2773 disabled, perf events will use software events only. 2774 2775config DMI 2776 bool "Enable DMI scanning" 2777 depends on MACH_LOONGSON64 2778 select DMI_SCAN_MACHINE_NON_EFI_FALLBACK 2779 default y 2780 help 2781 Enabled scanning of DMI to identify machine quirks. Say Y 2782 here unless you have verified that your setup is not 2783 affected by entries in the DMI blacklist. Required by PNP 2784 BIOS code. 2785 2786config SMP 2787 bool "Multi-Processing support" 2788 depends on SYS_SUPPORTS_SMP 2789 help 2790 This enables support for systems with more than one CPU. If you have 2791 a system with only one CPU, say N. If you have a system with more 2792 than one CPU, say Y. 2793 2794 If you say N here, the kernel will run on uni- and multiprocessor 2795 machines, but will use only one CPU of a multiprocessor machine. If 2796 you say Y here, the kernel will run on many, but not all, 2797 uniprocessor machines. On a uniprocessor machine, the kernel 2798 will run faster if you say N here. 2799 2800 People using multiprocessor machines who say Y here should also say 2801 Y to "Enhanced Real Time Clock Support", below. 2802 2803 See also the SMP-HOWTO available at 2804 <http://www.tldp.org/docs.html#howto>. 2805 2806 If you don't know what to do here, say N. 2807 2808config HOTPLUG_CPU 2809 bool "Support for hot-pluggable CPUs" 2810 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2811 help 2812 Say Y here to allow turning CPUs off and on. CPUs can be 2813 controlled through /sys/devices/system/cpu. 2814 (Note: power management support will enable this option 2815 automatically on SMP systems. ) 2816 Say N if you want to disable CPU hotplug. 2817 2818config SMP_UP 2819 bool 2820 2821config SYS_SUPPORTS_MIPS_CMP 2822 bool 2823 2824config SYS_SUPPORTS_MIPS_CPS 2825 bool 2826 2827config SYS_SUPPORTS_SMP 2828 bool 2829 2830config NR_CPUS_DEFAULT_4 2831 bool 2832 2833config NR_CPUS_DEFAULT_8 2834 bool 2835 2836config NR_CPUS_DEFAULT_16 2837 bool 2838 2839config NR_CPUS_DEFAULT_32 2840 bool 2841 2842config NR_CPUS_DEFAULT_64 2843 bool 2844 2845config NR_CPUS 2846 int "Maximum number of CPUs (2-256)" 2847 range 2 256 2848 depends on SMP 2849 default "4" if NR_CPUS_DEFAULT_4 2850 default "8" if NR_CPUS_DEFAULT_8 2851 default "16" if NR_CPUS_DEFAULT_16 2852 default "32" if NR_CPUS_DEFAULT_32 2853 default "64" if NR_CPUS_DEFAULT_64 2854 help 2855 This allows you to specify the maximum number of CPUs which this 2856 kernel will support. The maximum supported value is 32 for 32-bit 2857 kernel and 64 for 64-bit kernels; the minimum value which makes 2858 sense is 1 for Qemu (useful only for kernel debugging purposes) 2859 and 2 for all others. 2860 2861 This is purely to save memory - each supported CPU adds 2862 approximately eight kilobytes to the kernel image. For best 2863 performance should round up your number of processors to the next 2864 power of two. 2865 2866config MIPS_PERF_SHARED_TC_COUNTERS 2867 bool 2868 2869config MIPS_NR_CPU_NR_MAP_1024 2870 bool 2871 2872config MIPS_NR_CPU_NR_MAP 2873 int 2874 depends on SMP 2875 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2876 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2877 2878# 2879# Timer Interrupt Frequency Configuration 2880# 2881 2882choice 2883 prompt "Timer frequency" 2884 default HZ_250 2885 help 2886 Allows the configuration of the timer frequency. 2887 2888 config HZ_24 2889 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2890 2891 config HZ_48 2892 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2893 2894 config HZ_100 2895 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2896 2897 config HZ_128 2898 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2899 2900 config HZ_250 2901 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2902 2903 config HZ_256 2904 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2905 2906 config HZ_1000 2907 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2908 2909 config HZ_1024 2910 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2911 2912endchoice 2913 2914config SYS_SUPPORTS_24HZ 2915 bool 2916 2917config SYS_SUPPORTS_48HZ 2918 bool 2919 2920config SYS_SUPPORTS_100HZ 2921 bool 2922 2923config SYS_SUPPORTS_128HZ 2924 bool 2925 2926config SYS_SUPPORTS_250HZ 2927 bool 2928 2929config SYS_SUPPORTS_256HZ 2930 bool 2931 2932config SYS_SUPPORTS_1000HZ 2933 bool 2934 2935config SYS_SUPPORTS_1024HZ 2936 bool 2937 2938config SYS_SUPPORTS_ARBIT_HZ 2939 bool 2940 default y if !SYS_SUPPORTS_24HZ && \ 2941 !SYS_SUPPORTS_48HZ && \ 2942 !SYS_SUPPORTS_100HZ && \ 2943 !SYS_SUPPORTS_128HZ && \ 2944 !SYS_SUPPORTS_250HZ && \ 2945 !SYS_SUPPORTS_256HZ && \ 2946 !SYS_SUPPORTS_1000HZ && \ 2947 !SYS_SUPPORTS_1024HZ 2948 2949config HZ 2950 int 2951 default 24 if HZ_24 2952 default 48 if HZ_48 2953 default 100 if HZ_100 2954 default 128 if HZ_128 2955 default 250 if HZ_250 2956 default 256 if HZ_256 2957 default 1000 if HZ_1000 2958 default 1024 if HZ_1024 2959 2960config SCHED_HRTICK 2961 def_bool HIGH_RES_TIMERS 2962 2963config KEXEC 2964 bool "Kexec system call" 2965 select KEXEC_CORE 2966 help 2967 kexec is a system call that implements the ability to shutdown your 2968 current kernel, and to start another kernel. It is like a reboot 2969 but it is independent of the system firmware. And like a reboot 2970 you can start any kernel with it, not just Linux. 2971 2972 The name comes from the similarity to the exec system call. 2973 2974 It is an ongoing process to be certain the hardware in a machine 2975 is properly shutdown, so do not be surprised if this code does not 2976 initially work for you. As of this writing the exact hardware 2977 interface is strongly in flux, so no good recommendation can be 2978 made. 2979 2980config CRASH_DUMP 2981 bool "Kernel crash dumps" 2982 help 2983 Generate crash dump after being started by kexec. 2984 This should be normally only set in special crash dump kernels 2985 which are loaded in the main kernel with kexec-tools into 2986 a specially reserved region and then later executed after 2987 a crash by kdump/kexec. The crash dump kernel must be compiled 2988 to a memory address not used by the main kernel or firmware using 2989 PHYSICAL_START. 2990 2991config PHYSICAL_START 2992 hex "Physical address where the kernel is loaded" 2993 default "0xffffffff84000000" 2994 depends on CRASH_DUMP 2995 help 2996 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2997 If you plan to use kernel for capturing the crash dump change 2998 this value to start of the reserved region (the "X" value as 2999 specified in the "crashkernel=YM@XM" command line boot parameter 3000 passed to the panic-ed kernel). 3001 3002config SECCOMP 3003 bool "Enable seccomp to safely compute untrusted bytecode" 3004 depends on PROC_FS 3005 default y 3006 help 3007 This kernel feature is useful for number crunching applications 3008 that may need to compute untrusted bytecode during their 3009 execution. By using pipes or other transports made available to 3010 the process as file descriptors supporting the read/write 3011 syscalls, it's possible to isolate those applications in 3012 their own address space using seccomp. Once seccomp is 3013 enabled via /proc/<pid>/seccomp, it cannot be disabled 3014 and the task is only allowed to execute a few safe syscalls 3015 defined by each seccomp mode. 3016 3017 If unsure, say Y. Only embedded should say N here. 3018 3019config MIPS_O32_FP64_SUPPORT 3020 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 3021 depends on 32BIT || MIPS32_O32 3022 help 3023 When this is enabled, the kernel will support use of 64-bit floating 3024 point registers with binaries using the O32 ABI along with the 3025 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 3026 32-bit MIPS systems this support is at the cost of increasing the 3027 size and complexity of the compiled FPU emulator. Thus if you are 3028 running a MIPS32 system and know that none of your userland binaries 3029 will require 64-bit floating point, you may wish to reduce the size 3030 of your kernel & potentially improve FP emulation performance by 3031 saying N here. 3032 3033 Although binutils currently supports use of this flag the details 3034 concerning its effect upon the O32 ABI in userland are still being 3035 worked on. In order to avoid userland becoming dependant upon current 3036 behaviour before the details have been finalised, this option should 3037 be considered experimental and only enabled by those working upon 3038 said details. 3039 3040 If unsure, say N. 3041 3042config USE_OF 3043 bool 3044 select OF 3045 select OF_EARLY_FLATTREE 3046 select IRQ_DOMAIN 3047 3048config UHI_BOOT 3049 bool 3050 3051config BUILTIN_DTB 3052 bool 3053 3054choice 3055 prompt "Kernel appended dtb support" if USE_OF 3056 default MIPS_NO_APPENDED_DTB 3057 3058 config MIPS_NO_APPENDED_DTB 3059 bool "None" 3060 help 3061 Do not enable appended dtb support. 3062 3063 config MIPS_ELF_APPENDED_DTB 3064 bool "vmlinux" 3065 help 3066 With this option, the boot code will look for a device tree binary 3067 DTB) included in the vmlinux ELF section .appended_dtb. By default 3068 it is empty and the DTB can be appended using binutils command 3069 objcopy: 3070 3071 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3072 3073 This is meant as a backward compatiblity convenience for those 3074 systems with a bootloader that can't be upgraded to accommodate 3075 the documented boot protocol using a device tree. 3076 3077 config MIPS_RAW_APPENDED_DTB 3078 bool "vmlinux.bin or vmlinuz.bin" 3079 help 3080 With this option, the boot code will look for a device tree binary 3081 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3082 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3083 3084 This is meant as a backward compatibility convenience for those 3085 systems with a bootloader that can't be upgraded to accommodate 3086 the documented boot protocol using a device tree. 3087 3088 Beware that there is very little in terms of protection against 3089 this option being confused by leftover garbage in memory that might 3090 look like a DTB header after a reboot if no actual DTB is appended 3091 to vmlinux.bin. Do not leave this option active in a production kernel 3092 if you don't intend to always append a DTB. 3093endchoice 3094 3095choice 3096 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3097 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3098 !MACH_LOONGSON64 && !MIPS_MALTA && \ 3099 !CAVIUM_OCTEON_SOC 3100 default MIPS_CMDLINE_FROM_BOOTLOADER 3101 3102 config MIPS_CMDLINE_FROM_DTB 3103 depends on USE_OF 3104 bool "Dtb kernel arguments if available" 3105 3106 config MIPS_CMDLINE_DTB_EXTEND 3107 depends on USE_OF 3108 bool "Extend dtb kernel arguments with bootloader arguments" 3109 3110 config MIPS_CMDLINE_FROM_BOOTLOADER 3111 bool "Bootloader kernel arguments if available" 3112 3113 config MIPS_CMDLINE_BUILTIN_EXTEND 3114 depends on CMDLINE_BOOL 3115 bool "Extend builtin kernel arguments with bootloader arguments" 3116endchoice 3117 3118endmenu 3119 3120config LOCKDEP_SUPPORT 3121 bool 3122 default y 3123 3124config STACKTRACE_SUPPORT 3125 bool 3126 default y 3127 3128config PGTABLE_LEVELS 3129 int 3130 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3131 default 3 if 64BIT && !PAGE_SIZE_64KB 3132 default 2 3133 3134config MIPS_AUTO_PFN_OFFSET 3135 bool 3136 3137menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3138 3139config PCI_DRIVERS_GENERIC 3140 select PCI_DOMAINS_GENERIC if PCI 3141 bool 3142 3143config PCI_DRIVERS_LEGACY 3144 def_bool !PCI_DRIVERS_GENERIC 3145 select NO_GENERIC_PCI_IOPORT_MAP 3146 select PCI_DOMAINS if PCI 3147 3148# 3149# ISA support is now enabled via select. Too many systems still have the one 3150# or other ISA chip on the board that users don't know about so don't expect 3151# users to choose the right thing ... 3152# 3153config ISA 3154 bool 3155 3156config TC 3157 bool "TURBOchannel support" 3158 depends on MACH_DECSTATION 3159 help 3160 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3161 processors. TURBOchannel programming specifications are available 3162 at: 3163 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3164 and: 3165 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3166 Linux driver support status is documented at: 3167 <http://www.linux-mips.org/wiki/DECstation> 3168 3169config MMU 3170 bool 3171 default y 3172 3173config ARCH_MMAP_RND_BITS_MIN 3174 default 12 if 64BIT 3175 default 8 3176 3177config ARCH_MMAP_RND_BITS_MAX 3178 default 18 if 64BIT 3179 default 15 3180 3181config ARCH_MMAP_RND_COMPAT_BITS_MIN 3182 default 8 3183 3184config ARCH_MMAP_RND_COMPAT_BITS_MAX 3185 default 15 3186 3187config I8253 3188 bool 3189 select CLKSRC_I8253 3190 select CLKEVT_I8253 3191 select MIPS_EXTERNAL_TIMER 3192 3193config ZONE_DMA 3194 bool 3195 3196config ZONE_DMA32 3197 bool 3198 3199endmenu 3200 3201config TRAD_SIGNALS 3202 bool 3203 3204config MIPS32_COMPAT 3205 bool 3206 3207config COMPAT 3208 bool 3209 3210config SYSVIPC_COMPAT 3211 bool 3212 3213config MIPS32_O32 3214 bool "Kernel support for o32 binaries" 3215 depends on 64BIT 3216 select ARCH_WANT_OLD_COMPAT_IPC 3217 select COMPAT 3218 select MIPS32_COMPAT 3219 select SYSVIPC_COMPAT if SYSVIPC 3220 help 3221 Select this option if you want to run o32 binaries. These are pure 3222 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3223 existing binaries are in this format. 3224 3225 If unsure, say Y. 3226 3227config MIPS32_N32 3228 bool "Kernel support for n32 binaries" 3229 depends on 64BIT 3230 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3231 select COMPAT 3232 select MIPS32_COMPAT 3233 select SYSVIPC_COMPAT if SYSVIPC 3234 help 3235 Select this option if you want to run n32 binaries. These are 3236 64-bit binaries using 32-bit quantities for addressing and certain 3237 data that would normally be 64-bit. They are used in special 3238 cases. 3239 3240 If unsure, say N. 3241 3242config BINFMT_ELF32 3243 bool 3244 default y if MIPS32_O32 || MIPS32_N32 3245 select ELFCORE 3246 3247menu "Power management options" 3248 3249config ARCH_HIBERNATION_POSSIBLE 3250 def_bool y 3251 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3252 3253config ARCH_SUSPEND_POSSIBLE 3254 def_bool y 3255 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3256 3257source "kernel/power/Kconfig" 3258 3259endmenu 3260 3261config MIPS_EXTERNAL_TIMER 3262 bool 3263 3264menu "CPU Power Management" 3265 3266if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3267source "drivers/cpufreq/Kconfig" 3268endif 3269 3270source "drivers/cpuidle/Kconfig" 3271 3272endmenu 3273 3274source "drivers/firmware/Kconfig" 3275 3276source "arch/mips/kvm/Kconfig" 3277