1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_BINFMT_ELF_STATE 6 select ARCH_CLOCKSOURCE_DATA 7 select ARCH_DISCARD_MEMBLOCK 8 select ARCH_HAS_ELF_RANDOMIZE 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 10 select ARCH_MIGHT_HAVE_PC_PARPORT 11 select ARCH_MIGHT_HAVE_PC_SERIO 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_IPC_PARSE_VERSION 18 select BUILDTIME_EXTABLE_SORT 19 select CLONE_BACKWARDS 20 select CPU_PM if CPU_IDLE 21 select GENERIC_ATOMIC64 if !64BIT 22 select GENERIC_CLOCKEVENTS 23 select GENERIC_CMOS_UPDATE 24 select GENERIC_CPU_AUTOPROBE 25 select GENERIC_IRQ_PROBE 26 select GENERIC_IRQ_SHOW 27 select GENERIC_PCI_IOMAP 28 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 29 select GENERIC_SMP_IDLE_THREAD 30 select GENERIC_TIME_VSYSCALL 31 select HANDLE_DOMAIN_IRQ 32 select HAVE_ARCH_COMPILER_H 33 select HAVE_ARCH_JUMP_LABEL 34 select HAVE_ARCH_KGDB 35 select HAVE_ARCH_MMAP_RND_BITS if MMU 36 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 37 select HAVE_ARCH_SECCOMP_FILTER 38 select HAVE_ARCH_TRACEHOOK 39 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 40 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) 41 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) 42 select HAVE_CC_STACKPROTECTOR 43 select HAVE_CONTEXT_TRACKING 44 select HAVE_COPY_THREAD_TLS 45 select HAVE_C_RECORDMCOUNT 46 select HAVE_DEBUG_KMEMLEAK 47 select HAVE_DEBUG_STACKOVERFLOW 48 select HAVE_DMA_API_DEBUG 49 select HAVE_DMA_CONTIGUOUS 50 select HAVE_DYNAMIC_FTRACE 51 select HAVE_EXIT_THREAD 52 select HAVE_FTRACE_MCOUNT_RECORD 53 select HAVE_FUNCTION_GRAPH_TRACER 54 select HAVE_FUNCTION_TRACER 55 select HAVE_GENERIC_DMA_COHERENT 56 select HAVE_IDE 57 select HAVE_IRQ_EXIT_ON_IRQ_STACK 58 select HAVE_IRQ_TIME_ACCOUNTING 59 select HAVE_KPROBES 60 select HAVE_KRETPROBES 61 select HAVE_MEMBLOCK 62 select HAVE_MEMBLOCK_NODE_MAP 63 select HAVE_MOD_ARCH_SPECIFIC 64 select HAVE_NMI 65 select HAVE_OPROFILE 66 select HAVE_PERF_EVENTS 67 select HAVE_REGS_AND_STACK_ACCESS_API 68 select HAVE_SYSCALL_TRACEPOINTS 69 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 70 select IRQ_FORCED_THREADING 71 select MODULES_USE_ELF_RELA if MODULES && 64BIT 72 select MODULES_USE_ELF_REL if MODULES 73 select PERF_USE_VMALLOC 74 select RTC_LIB if !MACH_LOONGSON64 75 select SYSCTL_EXCEPTION_TRACE 76 select VIRT_TO_BUS 77 78menu "Machine selection" 79 80choice 81 prompt "System type" 82 default SGI_IP22 83 84config MIPS_GENERIC 85 bool "Generic board-agnostic MIPS kernel" 86 select BOOT_RAW 87 select BUILTIN_DTB 88 select CEVT_R4K 89 select CLKSRC_MIPS_GIC 90 select COMMON_CLK 91 select CPU_MIPSR2_IRQ_VI 92 select CPU_MIPSR2_IRQ_EI 93 select CSRC_R4K 94 select DMA_PERDEV_COHERENT 95 select HW_HAS_PCI 96 select IRQ_MIPS_CPU 97 select LIBFDT 98 select MIPS_CPU_SCACHE 99 select MIPS_GIC 100 select MIPS_L1_CACHE_SHIFT_7 101 select NO_EXCEPT_FILL 102 select PCI_DRIVERS_GENERIC 103 select PINCTRL 104 select SMP_UP if SMP 105 select SWAP_IO_SPACE 106 select SYS_HAS_CPU_MIPS32_R1 107 select SYS_HAS_CPU_MIPS32_R2 108 select SYS_HAS_CPU_MIPS32_R6 109 select SYS_HAS_CPU_MIPS64_R1 110 select SYS_HAS_CPU_MIPS64_R2 111 select SYS_HAS_CPU_MIPS64_R6 112 select SYS_SUPPORTS_32BIT_KERNEL 113 select SYS_SUPPORTS_64BIT_KERNEL 114 select SYS_SUPPORTS_BIG_ENDIAN 115 select SYS_SUPPORTS_HIGHMEM 116 select SYS_SUPPORTS_LITTLE_ENDIAN 117 select SYS_SUPPORTS_MICROMIPS 118 select SYS_SUPPORTS_MIPS_CPS 119 select SYS_SUPPORTS_MIPS16 120 select SYS_SUPPORTS_MULTITHREADING 121 select SYS_SUPPORTS_RELOCATABLE 122 select SYS_SUPPORTS_SMARTMIPS 123 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 124 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 125 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 126 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 127 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 128 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 129 select USE_OF 130 help 131 Select this to build a kernel which aims to support multiple boards, 132 generally using a flattened device tree passed from the bootloader 133 using the boot protocol defined in the UHI (Unified Hosting 134 Interface) specification. 135 136config MIPS_ALCHEMY 137 bool "Alchemy processor based machines" 138 select ARCH_PHYS_ADDR_T_64BIT 139 select CEVT_R4K 140 select CSRC_R4K 141 select IRQ_MIPS_CPU 142 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 143 select SYS_HAS_CPU_MIPS32_R1 144 select SYS_SUPPORTS_32BIT_KERNEL 145 select SYS_SUPPORTS_APM_EMULATION 146 select GPIOLIB 147 select SYS_SUPPORTS_ZBOOT 148 select COMMON_CLK 149 150config AR7 151 bool "Texas Instruments AR7" 152 select BOOT_ELF32 153 select DMA_NONCOHERENT 154 select CEVT_R4K 155 select CSRC_R4K 156 select IRQ_MIPS_CPU 157 select NO_EXCEPT_FILL 158 select SWAP_IO_SPACE 159 select SYS_HAS_CPU_MIPS32_R1 160 select SYS_HAS_EARLY_PRINTK 161 select SYS_SUPPORTS_32BIT_KERNEL 162 select SYS_SUPPORTS_LITTLE_ENDIAN 163 select SYS_SUPPORTS_MIPS16 164 select SYS_SUPPORTS_ZBOOT_UART16550 165 select GPIOLIB 166 select VLYNQ 167 select HAVE_CLK 168 help 169 Support for the Texas Instruments AR7 System-on-a-Chip 170 family: TNETD7100, 7200 and 7300. 171 172config ATH25 173 bool "Atheros AR231x/AR531x SoC support" 174 select CEVT_R4K 175 select CSRC_R4K 176 select DMA_NONCOHERENT 177 select IRQ_MIPS_CPU 178 select IRQ_DOMAIN 179 select SYS_HAS_CPU_MIPS32_R1 180 select SYS_SUPPORTS_BIG_ENDIAN 181 select SYS_SUPPORTS_32BIT_KERNEL 182 select SYS_HAS_EARLY_PRINTK 183 help 184 Support for Atheros AR231x and Atheros AR531x based boards 185 186config ATH79 187 bool "Atheros AR71XX/AR724X/AR913X based boards" 188 select ARCH_HAS_RESET_CONTROLLER 189 select BOOT_RAW 190 select CEVT_R4K 191 select CSRC_R4K 192 select DMA_NONCOHERENT 193 select GPIOLIB 194 select HAVE_CLK 195 select COMMON_CLK 196 select CLKDEV_LOOKUP 197 select IRQ_MIPS_CPU 198 select MIPS_MACHINE 199 select SYS_HAS_CPU_MIPS32_R2 200 select SYS_HAS_EARLY_PRINTK 201 select SYS_SUPPORTS_32BIT_KERNEL 202 select SYS_SUPPORTS_BIG_ENDIAN 203 select SYS_SUPPORTS_MIPS16 204 select SYS_SUPPORTS_ZBOOT_UART_PROM 205 select USE_OF 206 help 207 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 208 209config BMIPS_GENERIC 210 bool "Broadcom Generic BMIPS kernel" 211 select BOOT_RAW 212 select NO_EXCEPT_FILL 213 select USE_OF 214 select CEVT_R4K 215 select CSRC_R4K 216 select SYNC_R4K 217 select COMMON_CLK 218 select BCM6345_L1_IRQ 219 select BCM7038_L1_IRQ 220 select BCM7120_L2_IRQ 221 select BRCMSTB_L2_IRQ 222 select IRQ_MIPS_CPU 223 select DMA_NONCOHERENT 224 select SYS_SUPPORTS_32BIT_KERNEL 225 select SYS_SUPPORTS_LITTLE_ENDIAN 226 select SYS_SUPPORTS_BIG_ENDIAN 227 select SYS_SUPPORTS_HIGHMEM 228 select SYS_HAS_CPU_BMIPS32_3300 229 select SYS_HAS_CPU_BMIPS4350 230 select SYS_HAS_CPU_BMIPS4380 231 select SYS_HAS_CPU_BMIPS5000 232 select SWAP_IO_SPACE 233 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 234 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 235 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 236 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 237 help 238 Build a generic DT-based kernel image that boots on select 239 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 240 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 241 must be set appropriately for your board. 242 243config BCM47XX 244 bool "Broadcom BCM47XX based boards" 245 select BOOT_RAW 246 select CEVT_R4K 247 select CSRC_R4K 248 select DMA_NONCOHERENT 249 select HW_HAS_PCI 250 select IRQ_MIPS_CPU 251 select SYS_HAS_CPU_MIPS32_R1 252 select NO_EXCEPT_FILL 253 select SYS_SUPPORTS_32BIT_KERNEL 254 select SYS_SUPPORTS_LITTLE_ENDIAN 255 select SYS_SUPPORTS_MIPS16 256 select SYS_HAS_EARLY_PRINTK 257 select USE_GENERIC_EARLY_PRINTK_8250 258 select GPIOLIB 259 select LEDS_GPIO_REGISTER 260 select BCM47XX_NVRAM 261 select BCM47XX_SPROM 262 help 263 Support for BCM47XX based boards 264 265config BCM63XX 266 bool "Broadcom BCM63XX based boards" 267 select BOOT_RAW 268 select CEVT_R4K 269 select CSRC_R4K 270 select SYNC_R4K 271 select DMA_NONCOHERENT 272 select IRQ_MIPS_CPU 273 select SYS_SUPPORTS_32BIT_KERNEL 274 select SYS_SUPPORTS_BIG_ENDIAN 275 select SYS_HAS_EARLY_PRINTK 276 select SWAP_IO_SPACE 277 select GPIOLIB 278 select HAVE_CLK 279 select MIPS_L1_CACHE_SHIFT_4 280 help 281 Support for BCM63XX based boards 282 283config MIPS_COBALT 284 bool "Cobalt Server" 285 select CEVT_R4K 286 select CSRC_R4K 287 select CEVT_GT641XX 288 select DMA_NONCOHERENT 289 select HW_HAS_PCI 290 select I8253 291 select I8259 292 select IRQ_MIPS_CPU 293 select IRQ_GT641XX 294 select PCI_GT64XXX_PCI0 295 select PCI 296 select SYS_HAS_CPU_NEVADA 297 select SYS_HAS_EARLY_PRINTK 298 select SYS_SUPPORTS_32BIT_KERNEL 299 select SYS_SUPPORTS_64BIT_KERNEL 300 select SYS_SUPPORTS_LITTLE_ENDIAN 301 select USE_GENERIC_EARLY_PRINTK_8250 302 303config MACH_DECSTATION 304 bool "DECstations" 305 select BOOT_ELF32 306 select CEVT_DS1287 307 select CEVT_R4K if CPU_R4X00 308 select CSRC_IOASIC 309 select CSRC_R4K if CPU_R4X00 310 select CPU_DADDI_WORKAROUNDS if 64BIT 311 select CPU_R4000_WORKAROUNDS if 64BIT 312 select CPU_R4400_WORKAROUNDS if 64BIT 313 select DMA_NONCOHERENT 314 select NO_IOPORT_MAP 315 select IRQ_MIPS_CPU 316 select SYS_HAS_CPU_R3000 317 select SYS_HAS_CPU_R4X00 318 select SYS_SUPPORTS_32BIT_KERNEL 319 select SYS_SUPPORTS_64BIT_KERNEL 320 select SYS_SUPPORTS_LITTLE_ENDIAN 321 select SYS_SUPPORTS_128HZ 322 select SYS_SUPPORTS_256HZ 323 select SYS_SUPPORTS_1024HZ 324 select MIPS_L1_CACHE_SHIFT_4 325 help 326 This enables support for DEC's MIPS based workstations. For details 327 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 328 DECstation porting pages on <http://decstation.unix-ag.org/>. 329 330 If you have one of the following DECstation Models you definitely 331 want to choose R4xx0 for the CPU Type: 332 333 DECstation 5000/50 334 DECstation 5000/150 335 DECstation 5000/260 336 DECsystem 5900/260 337 338 otherwise choose R3000. 339 340config MACH_JAZZ 341 bool "Jazz family of machines" 342 select FW_ARC 343 select FW_ARC32 344 select ARCH_MAY_HAVE_PC_FDC 345 select CEVT_R4K 346 select CSRC_R4K 347 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 348 select GENERIC_ISA_DMA 349 select HAVE_PCSPKR_PLATFORM 350 select IRQ_MIPS_CPU 351 select I8253 352 select I8259 353 select ISA 354 select SYS_HAS_CPU_R4X00 355 select SYS_SUPPORTS_32BIT_KERNEL 356 select SYS_SUPPORTS_64BIT_KERNEL 357 select SYS_SUPPORTS_100HZ 358 help 359 This a family of machines based on the MIPS R4030 chipset which was 360 used by several vendors to build RISC/os and Windows NT workstations. 361 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 362 Olivetti M700-10 workstations. 363 364config MACH_INGENIC 365 bool "Ingenic SoC based machines" 366 select SYS_SUPPORTS_32BIT_KERNEL 367 select SYS_SUPPORTS_LITTLE_ENDIAN 368 select SYS_SUPPORTS_ZBOOT_UART16550 369 select DMA_NONCOHERENT 370 select IRQ_MIPS_CPU 371 select PINCTRL 372 select GPIOLIB 373 select COMMON_CLK 374 select GENERIC_IRQ_CHIP 375 select BUILTIN_DTB 376 select USE_OF 377 select LIBFDT 378 379config LANTIQ 380 bool "Lantiq based platforms" 381 select DMA_NONCOHERENT 382 select IRQ_MIPS_CPU 383 select CEVT_R4K 384 select CSRC_R4K 385 select SYS_HAS_CPU_MIPS32_R1 386 select SYS_HAS_CPU_MIPS32_R2 387 select SYS_SUPPORTS_BIG_ENDIAN 388 select SYS_SUPPORTS_32BIT_KERNEL 389 select SYS_SUPPORTS_MIPS16 390 select SYS_SUPPORTS_MULTITHREADING 391 select SYS_HAS_EARLY_PRINTK 392 select GPIOLIB 393 select SWAP_IO_SPACE 394 select BOOT_RAW 395 select CLKDEV_LOOKUP 396 select USE_OF 397 select PINCTRL 398 select PINCTRL_LANTIQ 399 select ARCH_HAS_RESET_CONTROLLER 400 select RESET_CONTROLLER 401 402config LASAT 403 bool "LASAT Networks platforms" 404 select CEVT_R4K 405 select CRC32 406 select CSRC_R4K 407 select DMA_NONCOHERENT 408 select SYS_HAS_EARLY_PRINTK 409 select HW_HAS_PCI 410 select IRQ_MIPS_CPU 411 select PCI_GT64XXX_PCI0 412 select MIPS_NILE4 413 select R5000_CPU_SCACHE 414 select SYS_HAS_CPU_R5000 415 select SYS_SUPPORTS_32BIT_KERNEL 416 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 417 select SYS_SUPPORTS_LITTLE_ENDIAN 418 419config MACH_LOONGSON32 420 bool "Loongson-1 family of machines" 421 select SYS_SUPPORTS_ZBOOT 422 help 423 This enables support for the Loongson-1 family of machines. 424 425 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 426 the Institute of Computing Technology (ICT), Chinese Academy of 427 Sciences (CAS). 428 429config MACH_LOONGSON64 430 bool "Loongson-2/3 family of machines" 431 select SYS_SUPPORTS_ZBOOT 432 help 433 This enables the support of Loongson-2/3 family of machines. 434 435 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 436 family of multi-core CPUs. They are both 64-bit general-purpose 437 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 438 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 439 in the People's Republic of China. The chief architect is Professor 440 Weiwu Hu. 441 442config MACH_PISTACHIO 443 bool "IMG Pistachio SoC based boards" 444 select BOOT_ELF32 445 select BOOT_RAW 446 select CEVT_R4K 447 select CLKSRC_MIPS_GIC 448 select COMMON_CLK 449 select CSRC_R4K 450 select DMA_NONCOHERENT 451 select GPIOLIB 452 select IRQ_MIPS_CPU 453 select LIBFDT 454 select MFD_SYSCON 455 select MIPS_CPU_SCACHE 456 select MIPS_GIC 457 select PINCTRL 458 select REGULATOR 459 select SYS_HAS_CPU_MIPS32_R2 460 select SYS_SUPPORTS_32BIT_KERNEL 461 select SYS_SUPPORTS_LITTLE_ENDIAN 462 select SYS_SUPPORTS_MIPS_CPS 463 select SYS_SUPPORTS_MULTITHREADING 464 select SYS_SUPPORTS_RELOCATABLE 465 select SYS_SUPPORTS_ZBOOT 466 select SYS_HAS_EARLY_PRINTK 467 select USE_GENERIC_EARLY_PRINTK_8250 468 select USE_OF 469 help 470 This enables support for the IMG Pistachio SoC platform. 471 472config MACH_XILFPGA 473 bool "MIPSfpga Xilinx based boards" 474 select BOOT_ELF32 475 select BOOT_RAW 476 select BUILTIN_DTB 477 select CEVT_R4K 478 select COMMON_CLK 479 select CSRC_R4K 480 select GPIOLIB 481 select IRQ_MIPS_CPU 482 select LIBFDT 483 select MIPS_CPU_SCACHE 484 select SYS_HAS_EARLY_PRINTK 485 select SYS_HAS_CPU_MIPS32_R2 486 select SYS_SUPPORTS_32BIT_KERNEL 487 select SYS_SUPPORTS_LITTLE_ENDIAN 488 select SYS_SUPPORTS_ZBOOT_UART16550 489 select USE_OF 490 select USE_GENERIC_EARLY_PRINTK_8250 491 select XILINX_INTC 492 help 493 This enables support for the IMG University Program MIPSfpga platform. 494 495config MIPS_MALTA 496 bool "MIPS Malta board" 497 select ARCH_MAY_HAVE_PC_FDC 498 select BOOT_ELF32 499 select BOOT_RAW 500 select BUILTIN_DTB 501 select CEVT_R4K 502 select CSRC_R4K 503 select CLKSRC_MIPS_GIC 504 select COMMON_CLK 505 select DMA_MAYBE_COHERENT 506 select GENERIC_ISA_DMA 507 select HAVE_PCSPKR_PLATFORM 508 select IRQ_MIPS_CPU 509 select MIPS_GIC 510 select HW_HAS_PCI 511 select I8253 512 select I8259 513 select MIPS_BONITO64 514 select MIPS_CPU_SCACHE 515 select MIPS_L1_CACHE_SHIFT_6 516 select PCI_GT64XXX_PCI0 517 select MIPS_MSC 518 select SMP_UP if SMP 519 select SWAP_IO_SPACE 520 select SYS_HAS_CPU_MIPS32_R1 521 select SYS_HAS_CPU_MIPS32_R2 522 select SYS_HAS_CPU_MIPS32_R3_5 523 select SYS_HAS_CPU_MIPS32_R5 524 select SYS_HAS_CPU_MIPS32_R6 525 select SYS_HAS_CPU_MIPS64_R1 526 select SYS_HAS_CPU_MIPS64_R2 527 select SYS_HAS_CPU_MIPS64_R6 528 select SYS_HAS_CPU_NEVADA 529 select SYS_HAS_CPU_RM7000 530 select SYS_SUPPORTS_32BIT_KERNEL 531 select SYS_SUPPORTS_64BIT_KERNEL 532 select SYS_SUPPORTS_BIG_ENDIAN 533 select SYS_SUPPORTS_HIGHMEM 534 select SYS_SUPPORTS_LITTLE_ENDIAN 535 select SYS_SUPPORTS_MICROMIPS 536 select SYS_SUPPORTS_MIPS_CMP 537 select SYS_SUPPORTS_MIPS_CPS 538 select SYS_SUPPORTS_MIPS16 539 select SYS_SUPPORTS_MULTITHREADING 540 select SYS_SUPPORTS_SMARTMIPS 541 select SYS_SUPPORTS_ZBOOT 542 select SYS_SUPPORTS_RELOCATABLE 543 select USE_OF 544 select LIBFDT 545 select ZONE_DMA32 if 64BIT 546 select BUILTIN_DTB 547 select LIBFDT 548 help 549 This enables support for the MIPS Technologies Malta evaluation 550 board. 551 552config MACH_PIC32 553 bool "Microchip PIC32 Family" 554 help 555 This enables support for the Microchip PIC32 family of platforms. 556 557 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 558 microcontrollers. 559 560config NEC_MARKEINS 561 bool "NEC EMMA2RH Mark-eins board" 562 select SOC_EMMA2RH 563 select HW_HAS_PCI 564 help 565 This enables support for the NEC Electronics Mark-eins boards. 566 567config MACH_VR41XX 568 bool "NEC VR4100 series based machines" 569 select CEVT_R4K 570 select CSRC_R4K 571 select SYS_HAS_CPU_VR41XX 572 select SYS_SUPPORTS_MIPS16 573 select GPIOLIB 574 575config NXP_STB220 576 bool "NXP STB220 board" 577 select SOC_PNX833X 578 help 579 Support for NXP Semiconductors STB220 Development Board. 580 581config NXP_STB225 582 bool "NXP 225 board" 583 select SOC_PNX833X 584 select SOC_PNX8335 585 help 586 Support for NXP Semiconductors STB225 Development Board. 587 588config PMC_MSP 589 bool "PMC-Sierra MSP chipsets" 590 select CEVT_R4K 591 select CSRC_R4K 592 select DMA_NONCOHERENT 593 select SWAP_IO_SPACE 594 select NO_EXCEPT_FILL 595 select BOOT_RAW 596 select SYS_HAS_CPU_MIPS32_R1 597 select SYS_HAS_CPU_MIPS32_R2 598 select SYS_SUPPORTS_32BIT_KERNEL 599 select SYS_SUPPORTS_BIG_ENDIAN 600 select SYS_SUPPORTS_MIPS16 601 select IRQ_MIPS_CPU 602 select SERIAL_8250 603 select SERIAL_8250_CONSOLE 604 select USB_EHCI_BIG_ENDIAN_MMIO 605 select USB_EHCI_BIG_ENDIAN_DESC 606 help 607 This adds support for the PMC-Sierra family of Multi-Service 608 Processor System-On-A-Chips. These parts include a number 609 of integrated peripherals, interfaces and DSPs in addition to 610 a variety of MIPS cores. 611 612config RALINK 613 bool "Ralink based machines" 614 select CEVT_R4K 615 select CSRC_R4K 616 select BOOT_RAW 617 select DMA_NONCOHERENT 618 select IRQ_MIPS_CPU 619 select USE_OF 620 select SYS_HAS_CPU_MIPS32_R1 621 select SYS_HAS_CPU_MIPS32_R2 622 select SYS_SUPPORTS_32BIT_KERNEL 623 select SYS_SUPPORTS_LITTLE_ENDIAN 624 select SYS_SUPPORTS_MIPS16 625 select SYS_HAS_EARLY_PRINTK 626 select CLKDEV_LOOKUP 627 select ARCH_HAS_RESET_CONTROLLER 628 select RESET_CONTROLLER 629 630config SGI_IP22 631 bool "SGI IP22 (Indy/Indigo2)" 632 select FW_ARC 633 select FW_ARC32 634 select BOOT_ELF32 635 select CEVT_R4K 636 select CSRC_R4K 637 select DEFAULT_SGI_PARTITION 638 select DMA_NONCOHERENT 639 select HW_HAS_EISA 640 select I8253 641 select I8259 642 select IP22_CPU_SCACHE 643 select IRQ_MIPS_CPU 644 select GENERIC_ISA_DMA_SUPPORT_BROKEN 645 select SGI_HAS_I8042 646 select SGI_HAS_INDYDOG 647 select SGI_HAS_HAL2 648 select SGI_HAS_SEEQ 649 select SGI_HAS_WD93 650 select SGI_HAS_ZILOG 651 select SWAP_IO_SPACE 652 select SYS_HAS_CPU_R4X00 653 select SYS_HAS_CPU_R5000 654 # 655 # Disable EARLY_PRINTK for now since it leads to overwritten prom 656 # memory during early boot on some machines. 657 # 658 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 659 # for a more details discussion 660 # 661 # select SYS_HAS_EARLY_PRINTK 662 select SYS_SUPPORTS_32BIT_KERNEL 663 select SYS_SUPPORTS_64BIT_KERNEL 664 select SYS_SUPPORTS_BIG_ENDIAN 665 select MIPS_L1_CACHE_SHIFT_7 666 help 667 This are the SGI Indy, Challenge S and Indigo2, as well as certain 668 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 669 that runs on these, say Y here. 670 671config SGI_IP27 672 bool "SGI IP27 (Origin200/2000)" 673 select FW_ARC 674 select FW_ARC64 675 select BOOT_ELF64 676 select DEFAULT_SGI_PARTITION 677 select DMA_COHERENT 678 select SYS_HAS_EARLY_PRINTK 679 select HW_HAS_PCI 680 select NR_CPUS_DEFAULT_64 681 select SYS_HAS_CPU_R10000 682 select SYS_SUPPORTS_64BIT_KERNEL 683 select SYS_SUPPORTS_BIG_ENDIAN 684 select SYS_SUPPORTS_NUMA 685 select SYS_SUPPORTS_SMP 686 select MIPS_L1_CACHE_SHIFT_7 687 help 688 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 689 workstations. To compile a Linux kernel that runs on these, say Y 690 here. 691 692config SGI_IP28 693 bool "SGI IP28 (Indigo2 R10k)" 694 select FW_ARC 695 select FW_ARC64 696 select BOOT_ELF64 697 select CEVT_R4K 698 select CSRC_R4K 699 select DEFAULT_SGI_PARTITION 700 select DMA_NONCOHERENT 701 select GENERIC_ISA_DMA_SUPPORT_BROKEN 702 select IRQ_MIPS_CPU 703 select HW_HAS_EISA 704 select I8253 705 select I8259 706 select SGI_HAS_I8042 707 select SGI_HAS_INDYDOG 708 select SGI_HAS_HAL2 709 select SGI_HAS_SEEQ 710 select SGI_HAS_WD93 711 select SGI_HAS_ZILOG 712 select SWAP_IO_SPACE 713 select SYS_HAS_CPU_R10000 714 # 715 # Disable EARLY_PRINTK for now since it leads to overwritten prom 716 # memory during early boot on some machines. 717 # 718 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 719 # for a more details discussion 720 # 721 # select SYS_HAS_EARLY_PRINTK 722 select SYS_SUPPORTS_64BIT_KERNEL 723 select SYS_SUPPORTS_BIG_ENDIAN 724 select MIPS_L1_CACHE_SHIFT_7 725 help 726 This is the SGI Indigo2 with R10000 processor. To compile a Linux 727 kernel that runs on these, say Y here. 728 729config SGI_IP32 730 bool "SGI IP32 (O2)" 731 select FW_ARC 732 select FW_ARC32 733 select BOOT_ELF32 734 select CEVT_R4K 735 select CSRC_R4K 736 select DMA_NONCOHERENT 737 select HW_HAS_PCI 738 select IRQ_MIPS_CPU 739 select R5000_CPU_SCACHE 740 select RM7000_CPU_SCACHE 741 select SYS_HAS_CPU_R5000 742 select SYS_HAS_CPU_R10000 if BROKEN 743 select SYS_HAS_CPU_RM7000 744 select SYS_HAS_CPU_NEVADA 745 select SYS_SUPPORTS_64BIT_KERNEL 746 select SYS_SUPPORTS_BIG_ENDIAN 747 help 748 If you want this kernel to run on SGI O2 workstation, say Y here. 749 750config SIBYTE_CRHINE 751 bool "Sibyte BCM91120C-CRhine" 752 select BOOT_ELF32 753 select DMA_COHERENT 754 select SIBYTE_BCM1120 755 select SWAP_IO_SPACE 756 select SYS_HAS_CPU_SB1 757 select SYS_SUPPORTS_BIG_ENDIAN 758 select SYS_SUPPORTS_LITTLE_ENDIAN 759 760config SIBYTE_CARMEL 761 bool "Sibyte BCM91120x-Carmel" 762 select BOOT_ELF32 763 select DMA_COHERENT 764 select SIBYTE_BCM1120 765 select SWAP_IO_SPACE 766 select SYS_HAS_CPU_SB1 767 select SYS_SUPPORTS_BIG_ENDIAN 768 select SYS_SUPPORTS_LITTLE_ENDIAN 769 770config SIBYTE_CRHONE 771 bool "Sibyte BCM91125C-CRhone" 772 select BOOT_ELF32 773 select DMA_COHERENT 774 select SIBYTE_BCM1125 775 select SWAP_IO_SPACE 776 select SYS_HAS_CPU_SB1 777 select SYS_SUPPORTS_BIG_ENDIAN 778 select SYS_SUPPORTS_HIGHMEM 779 select SYS_SUPPORTS_LITTLE_ENDIAN 780 781config SIBYTE_RHONE 782 bool "Sibyte BCM91125E-Rhone" 783 select BOOT_ELF32 784 select DMA_COHERENT 785 select SIBYTE_BCM1125H 786 select SWAP_IO_SPACE 787 select SYS_HAS_CPU_SB1 788 select SYS_SUPPORTS_BIG_ENDIAN 789 select SYS_SUPPORTS_LITTLE_ENDIAN 790 791config SIBYTE_SWARM 792 bool "Sibyte BCM91250A-SWARM" 793 select BOOT_ELF32 794 select DMA_COHERENT 795 select HAVE_PATA_PLATFORM 796 select SIBYTE_SB1250 797 select SWAP_IO_SPACE 798 select SYS_HAS_CPU_SB1 799 select SYS_SUPPORTS_BIG_ENDIAN 800 select SYS_SUPPORTS_HIGHMEM 801 select SYS_SUPPORTS_LITTLE_ENDIAN 802 select ZONE_DMA32 if 64BIT 803 804config SIBYTE_LITTLESUR 805 bool "Sibyte BCM91250C2-LittleSur" 806 select BOOT_ELF32 807 select DMA_COHERENT 808 select HAVE_PATA_PLATFORM 809 select SIBYTE_SB1250 810 select SWAP_IO_SPACE 811 select SYS_HAS_CPU_SB1 812 select SYS_SUPPORTS_BIG_ENDIAN 813 select SYS_SUPPORTS_HIGHMEM 814 select SYS_SUPPORTS_LITTLE_ENDIAN 815 select ZONE_DMA32 if 64BIT 816 817config SIBYTE_SENTOSA 818 bool "Sibyte BCM91250E-Sentosa" 819 select BOOT_ELF32 820 select DMA_COHERENT 821 select SIBYTE_SB1250 822 select SWAP_IO_SPACE 823 select SYS_HAS_CPU_SB1 824 select SYS_SUPPORTS_BIG_ENDIAN 825 select SYS_SUPPORTS_LITTLE_ENDIAN 826 827config SIBYTE_BIGSUR 828 bool "Sibyte BCM91480B-BigSur" 829 select BOOT_ELF32 830 select DMA_COHERENT 831 select NR_CPUS_DEFAULT_4 832 select SIBYTE_BCM1x80 833 select SWAP_IO_SPACE 834 select SYS_HAS_CPU_SB1 835 select SYS_SUPPORTS_BIG_ENDIAN 836 select SYS_SUPPORTS_HIGHMEM 837 select SYS_SUPPORTS_LITTLE_ENDIAN 838 select ZONE_DMA32 if 64BIT 839 840config SNI_RM 841 bool "SNI RM200/300/400" 842 select FW_ARC if CPU_LITTLE_ENDIAN 843 select FW_ARC32 if CPU_LITTLE_ENDIAN 844 select FW_SNIPROM if CPU_BIG_ENDIAN 845 select ARCH_MAY_HAVE_PC_FDC 846 select BOOT_ELF32 847 select CEVT_R4K 848 select CSRC_R4K 849 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 850 select DMA_NONCOHERENT 851 select GENERIC_ISA_DMA 852 select HAVE_PCSPKR_PLATFORM 853 select HW_HAS_EISA 854 select HW_HAS_PCI 855 select IRQ_MIPS_CPU 856 select I8253 857 select I8259 858 select ISA 859 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 860 select SYS_HAS_CPU_R4X00 861 select SYS_HAS_CPU_R5000 862 select SYS_HAS_CPU_R10000 863 select R5000_CPU_SCACHE 864 select SYS_HAS_EARLY_PRINTK 865 select SYS_SUPPORTS_32BIT_KERNEL 866 select SYS_SUPPORTS_64BIT_KERNEL 867 select SYS_SUPPORTS_BIG_ENDIAN 868 select SYS_SUPPORTS_HIGHMEM 869 select SYS_SUPPORTS_LITTLE_ENDIAN 870 help 871 The SNI RM200/300/400 are MIPS-based machines manufactured by 872 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 873 Technology and now in turn merged with Fujitsu. Say Y here to 874 support this machine type. 875 876config MACH_TX39XX 877 bool "Toshiba TX39 series based machines" 878 879config MACH_TX49XX 880 bool "Toshiba TX49 series based machines" 881 882config MIKROTIK_RB532 883 bool "Mikrotik RB532 boards" 884 select CEVT_R4K 885 select CSRC_R4K 886 select DMA_NONCOHERENT 887 select HW_HAS_PCI 888 select IRQ_MIPS_CPU 889 select SYS_HAS_CPU_MIPS32_R1 890 select SYS_SUPPORTS_32BIT_KERNEL 891 select SYS_SUPPORTS_LITTLE_ENDIAN 892 select SWAP_IO_SPACE 893 select BOOT_RAW 894 select GPIOLIB 895 select MIPS_L1_CACHE_SHIFT_4 896 help 897 Support the Mikrotik(tm) RouterBoard 532 series, 898 based on the IDT RC32434 SoC. 899 900config CAVIUM_OCTEON_SOC 901 bool "Cavium Networks Octeon SoC based boards" 902 select CEVT_R4K 903 select ARCH_PHYS_ADDR_T_64BIT 904 select DMA_COHERENT 905 select SYS_SUPPORTS_64BIT_KERNEL 906 select SYS_SUPPORTS_BIG_ENDIAN 907 select EDAC_SUPPORT 908 select EDAC_ATOMIC_SCRUB 909 select SYS_SUPPORTS_LITTLE_ENDIAN 910 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 911 select SYS_HAS_EARLY_PRINTK 912 select SYS_HAS_CPU_CAVIUM_OCTEON 913 select HW_HAS_PCI 914 select ZONE_DMA32 915 select HOLES_IN_ZONE 916 select GPIOLIB 917 select LIBFDT 918 select USE_OF 919 select ARCH_SPARSEMEM_ENABLE 920 select SYS_SUPPORTS_SMP 921 select NR_CPUS_DEFAULT_16 922 select BUILTIN_DTB 923 select MTD_COMPLEX_MAPPINGS 924 select SYS_SUPPORTS_RELOCATABLE 925 help 926 This option supports all of the Octeon reference boards from Cavium 927 Networks. It builds a kernel that dynamically determines the Octeon 928 CPU type and supports all known board reference implementations. 929 Some of the supported boards are: 930 EBT3000 931 EBH3000 932 EBH3100 933 Thunder 934 Kodama 935 Hikari 936 Say Y here for most Octeon reference boards. 937 938config NLM_XLR_BOARD 939 bool "Netlogic XLR/XLS based systems" 940 select BOOT_ELF32 941 select NLM_COMMON 942 select SYS_HAS_CPU_XLR 943 select SYS_SUPPORTS_SMP 944 select HW_HAS_PCI 945 select SWAP_IO_SPACE 946 select SYS_SUPPORTS_32BIT_KERNEL 947 select SYS_SUPPORTS_64BIT_KERNEL 948 select ARCH_PHYS_ADDR_T_64BIT 949 select SYS_SUPPORTS_BIG_ENDIAN 950 select SYS_SUPPORTS_HIGHMEM 951 select DMA_COHERENT 952 select NR_CPUS_DEFAULT_32 953 select CEVT_R4K 954 select CSRC_R4K 955 select IRQ_MIPS_CPU 956 select ZONE_DMA32 if 64BIT 957 select SYNC_R4K 958 select SYS_HAS_EARLY_PRINTK 959 select SYS_SUPPORTS_ZBOOT 960 select SYS_SUPPORTS_ZBOOT_UART16550 961 help 962 Support for systems based on Netlogic XLR and XLS processors. 963 Say Y here if you have a XLR or XLS based board. 964 965config NLM_XLP_BOARD 966 bool "Netlogic XLP based systems" 967 select BOOT_ELF32 968 select NLM_COMMON 969 select SYS_HAS_CPU_XLP 970 select SYS_SUPPORTS_SMP 971 select HW_HAS_PCI 972 select SYS_SUPPORTS_32BIT_KERNEL 973 select SYS_SUPPORTS_64BIT_KERNEL 974 select ARCH_PHYS_ADDR_T_64BIT 975 select GPIOLIB 976 select SYS_SUPPORTS_BIG_ENDIAN 977 select SYS_SUPPORTS_LITTLE_ENDIAN 978 select SYS_SUPPORTS_HIGHMEM 979 select DMA_COHERENT 980 select NR_CPUS_DEFAULT_32 981 select CEVT_R4K 982 select CSRC_R4K 983 select IRQ_MIPS_CPU 984 select ZONE_DMA32 if 64BIT 985 select SYNC_R4K 986 select SYS_HAS_EARLY_PRINTK 987 select USE_OF 988 select SYS_SUPPORTS_ZBOOT 989 select SYS_SUPPORTS_ZBOOT_UART16550 990 help 991 This board is based on Netlogic XLP Processor. 992 Say Y here if you have a XLP based board. 993 994config MIPS_PARAVIRT 995 bool "Para-Virtualized guest system" 996 select CEVT_R4K 997 select CSRC_R4K 998 select DMA_COHERENT 999 select SYS_SUPPORTS_64BIT_KERNEL 1000 select SYS_SUPPORTS_32BIT_KERNEL 1001 select SYS_SUPPORTS_BIG_ENDIAN 1002 select SYS_SUPPORTS_SMP 1003 select NR_CPUS_DEFAULT_4 1004 select SYS_HAS_EARLY_PRINTK 1005 select SYS_HAS_CPU_MIPS32_R2 1006 select SYS_HAS_CPU_MIPS64_R2 1007 select SYS_HAS_CPU_CAVIUM_OCTEON 1008 select HW_HAS_PCI 1009 select SWAP_IO_SPACE 1010 help 1011 This option supports guest running under ???? 1012 1013endchoice 1014 1015source "arch/mips/alchemy/Kconfig" 1016source "arch/mips/ath25/Kconfig" 1017source "arch/mips/ath79/Kconfig" 1018source "arch/mips/bcm47xx/Kconfig" 1019source "arch/mips/bcm63xx/Kconfig" 1020source "arch/mips/bmips/Kconfig" 1021source "arch/mips/generic/Kconfig" 1022source "arch/mips/jazz/Kconfig" 1023source "arch/mips/jz4740/Kconfig" 1024source "arch/mips/lantiq/Kconfig" 1025source "arch/mips/lasat/Kconfig" 1026source "arch/mips/pic32/Kconfig" 1027source "arch/mips/pistachio/Kconfig" 1028source "arch/mips/pmcs-msp71xx/Kconfig" 1029source "arch/mips/ralink/Kconfig" 1030source "arch/mips/sgi-ip27/Kconfig" 1031source "arch/mips/sibyte/Kconfig" 1032source "arch/mips/txx9/Kconfig" 1033source "arch/mips/vr41xx/Kconfig" 1034source "arch/mips/cavium-octeon/Kconfig" 1035source "arch/mips/loongson32/Kconfig" 1036source "arch/mips/loongson64/Kconfig" 1037source "arch/mips/netlogic/Kconfig" 1038source "arch/mips/paravirt/Kconfig" 1039source "arch/mips/xilfpga/Kconfig" 1040 1041endmenu 1042 1043config RWSEM_GENERIC_SPINLOCK 1044 bool 1045 default y 1046 1047config RWSEM_XCHGADD_ALGORITHM 1048 bool 1049 1050config GENERIC_HWEIGHT 1051 bool 1052 default y 1053 1054config GENERIC_CALIBRATE_DELAY 1055 bool 1056 default y 1057 1058config SCHED_OMIT_FRAME_POINTER 1059 bool 1060 default y 1061 1062# 1063# Select some configuration options automatically based on user selections. 1064# 1065config FW_ARC 1066 bool 1067 1068config ARCH_MAY_HAVE_PC_FDC 1069 bool 1070 1071config BOOT_RAW 1072 bool 1073 1074config CEVT_BCM1480 1075 bool 1076 1077config CEVT_DS1287 1078 bool 1079 1080config CEVT_GT641XX 1081 bool 1082 1083config CEVT_R4K 1084 bool 1085 1086config CEVT_SB1250 1087 bool 1088 1089config CEVT_TXX9 1090 bool 1091 1092config CSRC_BCM1480 1093 bool 1094 1095config CSRC_IOASIC 1096 bool 1097 1098config CSRC_R4K 1099 bool 1100 1101config CSRC_SB1250 1102 bool 1103 1104config MIPS_CLOCK_VSYSCALL 1105 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1106 1107config GPIO_TXX9 1108 select GPIOLIB 1109 bool 1110 1111config FW_CFE 1112 bool 1113 1114config ARCH_DMA_ADDR_T_64BIT 1115 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT 1116 1117config ARCH_SUPPORTS_UPROBES 1118 bool 1119 1120config DMA_MAYBE_COHERENT 1121 select DMA_NONCOHERENT 1122 bool 1123 1124config DMA_PERDEV_COHERENT 1125 bool 1126 select DMA_MAYBE_COHERENT 1127 1128config DMA_COHERENT 1129 bool 1130 1131config DMA_NONCOHERENT 1132 bool 1133 select NEED_DMA_MAP_STATE 1134 1135config NEED_DMA_MAP_STATE 1136 bool 1137 1138config SYS_HAS_EARLY_PRINTK 1139 bool 1140 1141config SYS_SUPPORTS_HOTPLUG_CPU 1142 bool 1143 1144config MIPS_BONITO64 1145 bool 1146 1147config MIPS_MSC 1148 bool 1149 1150config MIPS_NILE4 1151 bool 1152 1153config SYNC_R4K 1154 bool 1155 1156config MIPS_MACHINE 1157 def_bool n 1158 1159config NO_IOPORT_MAP 1160 def_bool n 1161 1162config GENERIC_CSUM 1163 bool 1164 1165config GENERIC_ISA_DMA 1166 bool 1167 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1168 select ISA_DMA_API 1169 1170config GENERIC_ISA_DMA_SUPPORT_BROKEN 1171 bool 1172 select GENERIC_ISA_DMA 1173 1174config ISA_DMA_API 1175 bool 1176 1177config HOLES_IN_ZONE 1178 bool 1179 1180config SYS_SUPPORTS_RELOCATABLE 1181 bool 1182 help 1183 Selected if the platform supports relocating the kernel. 1184 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1185 to allow access to command line and entropy sources. 1186 1187config MIPS_CBPF_JIT 1188 def_bool y 1189 depends on BPF_JIT && HAVE_CBPF_JIT 1190 1191config MIPS_EBPF_JIT 1192 def_bool y 1193 depends on BPF_JIT && HAVE_EBPF_JIT 1194 1195 1196# 1197# Endianness selection. Sufficiently obscure so many users don't know what to 1198# answer,so we try hard to limit the available choices. Also the use of a 1199# choice statement should be more obvious to the user. 1200# 1201choice 1202 prompt "Endianness selection" 1203 help 1204 Some MIPS machines can be configured for either little or big endian 1205 byte order. These modes require different kernels and a different 1206 Linux distribution. In general there is one preferred byteorder for a 1207 particular system but some systems are just as commonly used in the 1208 one or the other endianness. 1209 1210config CPU_BIG_ENDIAN 1211 bool "Big endian" 1212 depends on SYS_SUPPORTS_BIG_ENDIAN 1213 1214config CPU_LITTLE_ENDIAN 1215 bool "Little endian" 1216 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1217 1218endchoice 1219 1220config EXPORT_UASM 1221 bool 1222 1223config SYS_SUPPORTS_APM_EMULATION 1224 bool 1225 1226config SYS_SUPPORTS_BIG_ENDIAN 1227 bool 1228 1229config SYS_SUPPORTS_LITTLE_ENDIAN 1230 bool 1231 1232config SYS_SUPPORTS_HUGETLBFS 1233 bool 1234 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1235 default y 1236 1237config MIPS_HUGE_TLB_SUPPORT 1238 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1239 1240config IRQ_CPU_RM7K 1241 bool 1242 1243config IRQ_MSP_SLP 1244 bool 1245 1246config IRQ_MSP_CIC 1247 bool 1248 1249config IRQ_TXX9 1250 bool 1251 1252config IRQ_GT641XX 1253 bool 1254 1255config PCI_GT64XXX_PCI0 1256 bool 1257 1258config NO_EXCEPT_FILL 1259 bool 1260 1261config SOC_EMMA2RH 1262 bool 1263 select CEVT_R4K 1264 select CSRC_R4K 1265 select DMA_NONCOHERENT 1266 select IRQ_MIPS_CPU 1267 select SWAP_IO_SPACE 1268 select SYS_HAS_CPU_R5500 1269 select SYS_SUPPORTS_32BIT_KERNEL 1270 select SYS_SUPPORTS_64BIT_KERNEL 1271 select SYS_SUPPORTS_BIG_ENDIAN 1272 1273config SOC_PNX833X 1274 bool 1275 select CEVT_R4K 1276 select CSRC_R4K 1277 select IRQ_MIPS_CPU 1278 select DMA_NONCOHERENT 1279 select SYS_HAS_CPU_MIPS32_R2 1280 select SYS_SUPPORTS_32BIT_KERNEL 1281 select SYS_SUPPORTS_LITTLE_ENDIAN 1282 select SYS_SUPPORTS_BIG_ENDIAN 1283 select SYS_SUPPORTS_MIPS16 1284 select CPU_MIPSR2_IRQ_VI 1285 1286config SOC_PNX8335 1287 bool 1288 select SOC_PNX833X 1289 1290config MIPS_SPRAM 1291 bool 1292 1293config SWAP_IO_SPACE 1294 bool 1295 1296config SGI_HAS_INDYDOG 1297 bool 1298 1299config SGI_HAS_HAL2 1300 bool 1301 1302config SGI_HAS_SEEQ 1303 bool 1304 1305config SGI_HAS_WD93 1306 bool 1307 1308config SGI_HAS_ZILOG 1309 bool 1310 1311config SGI_HAS_I8042 1312 bool 1313 1314config DEFAULT_SGI_PARTITION 1315 bool 1316 1317config FW_ARC32 1318 bool 1319 1320config FW_SNIPROM 1321 bool 1322 1323config BOOT_ELF32 1324 bool 1325 1326config MIPS_L1_CACHE_SHIFT_4 1327 bool 1328 1329config MIPS_L1_CACHE_SHIFT_5 1330 bool 1331 1332config MIPS_L1_CACHE_SHIFT_6 1333 bool 1334 1335config MIPS_L1_CACHE_SHIFT_7 1336 bool 1337 1338config MIPS_L1_CACHE_SHIFT 1339 int 1340 default "7" if MIPS_L1_CACHE_SHIFT_7 1341 default "6" if MIPS_L1_CACHE_SHIFT_6 1342 default "5" if MIPS_L1_CACHE_SHIFT_5 1343 default "4" if MIPS_L1_CACHE_SHIFT_4 1344 default "5" 1345 1346config HAVE_STD_PC_SERIAL_PORT 1347 bool 1348 1349config ARC_CONSOLE 1350 bool "ARC console support" 1351 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1352 1353config ARC_MEMORY 1354 bool 1355 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1356 default y 1357 1358config ARC_PROMLIB 1359 bool 1360 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1361 default y 1362 1363config FW_ARC64 1364 bool 1365 1366config BOOT_ELF64 1367 bool 1368 1369menu "CPU selection" 1370 1371choice 1372 prompt "CPU type" 1373 default CPU_R4X00 1374 1375config CPU_LOONGSON3 1376 bool "Loongson 3 CPU" 1377 depends on SYS_HAS_CPU_LOONGSON3 1378 select CPU_SUPPORTS_64BIT_KERNEL 1379 select CPU_SUPPORTS_HIGHMEM 1380 select CPU_SUPPORTS_HUGEPAGES 1381 select WEAK_ORDERING 1382 select WEAK_REORDERING_BEYOND_LLSC 1383 select MIPS_PGD_C0_CONTEXT 1384 select MIPS_L1_CACHE_SHIFT_6 1385 select GPIOLIB 1386 help 1387 The Loongson 3 processor implements the MIPS64R2 instruction 1388 set with many extensions. 1389 1390config LOONGSON3_ENHANCEMENT 1391 bool "New Loongson 3 CPU Enhancements" 1392 default n 1393 select CPU_MIPSR2 1394 select CPU_HAS_PREFETCH 1395 depends on CPU_LOONGSON3 1396 help 1397 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1398 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1399 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1400 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1401 Fast TLB refill support, etc. 1402 1403 This option enable those enhancements which are not probed at run 1404 time. If you want a generic kernel to run on all Loongson 3 machines, 1405 please say 'N' here. If you want a high-performance kernel to run on 1406 new Loongson 3 machines only, please say 'Y' here. 1407 1408config CPU_LOONGSON2E 1409 bool "Loongson 2E" 1410 depends on SYS_HAS_CPU_LOONGSON2E 1411 select CPU_LOONGSON2 1412 help 1413 The Loongson 2E processor implements the MIPS III instruction set 1414 with many extensions. 1415 1416 It has an internal FPGA northbridge, which is compatible to 1417 bonito64. 1418 1419config CPU_LOONGSON2F 1420 bool "Loongson 2F" 1421 depends on SYS_HAS_CPU_LOONGSON2F 1422 select CPU_LOONGSON2 1423 select GPIOLIB 1424 help 1425 The Loongson 2F processor implements the MIPS III instruction set 1426 with many extensions. 1427 1428 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1429 have a similar programming interface with FPGA northbridge used in 1430 Loongson2E. 1431 1432config CPU_LOONGSON1B 1433 bool "Loongson 1B" 1434 depends on SYS_HAS_CPU_LOONGSON1B 1435 select CPU_LOONGSON1 1436 select LEDS_GPIO_REGISTER 1437 help 1438 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1439 release 2 instruction set. 1440 1441config CPU_LOONGSON1C 1442 bool "Loongson 1C" 1443 depends on SYS_HAS_CPU_LOONGSON1C 1444 select CPU_LOONGSON1 1445 select LEDS_GPIO_REGISTER 1446 help 1447 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1448 release 2 instruction set. 1449 1450config CPU_MIPS32_R1 1451 bool "MIPS32 Release 1" 1452 depends on SYS_HAS_CPU_MIPS32_R1 1453 select CPU_HAS_PREFETCH 1454 select CPU_SUPPORTS_32BIT_KERNEL 1455 select CPU_SUPPORTS_HIGHMEM 1456 help 1457 Choose this option to build a kernel for release 1 or later of the 1458 MIPS32 architecture. Most modern embedded systems with a 32-bit 1459 MIPS processor are based on a MIPS32 processor. If you know the 1460 specific type of processor in your system, choose those that one 1461 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1462 Release 2 of the MIPS32 architecture is available since several 1463 years so chances are you even have a MIPS32 Release 2 processor 1464 in which case you should choose CPU_MIPS32_R2 instead for better 1465 performance. 1466 1467config CPU_MIPS32_R2 1468 bool "MIPS32 Release 2" 1469 depends on SYS_HAS_CPU_MIPS32_R2 1470 select CPU_HAS_PREFETCH 1471 select CPU_SUPPORTS_32BIT_KERNEL 1472 select CPU_SUPPORTS_HIGHMEM 1473 select CPU_SUPPORTS_MSA 1474 select HAVE_KVM 1475 help 1476 Choose this option to build a kernel for release 2 or later of the 1477 MIPS32 architecture. Most modern embedded systems with a 32-bit 1478 MIPS processor are based on a MIPS32 processor. If you know the 1479 specific type of processor in your system, choose those that one 1480 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1481 1482config CPU_MIPS32_R6 1483 bool "MIPS32 Release 6" 1484 depends on SYS_HAS_CPU_MIPS32_R6 1485 select CPU_HAS_PREFETCH 1486 select CPU_SUPPORTS_32BIT_KERNEL 1487 select CPU_SUPPORTS_HIGHMEM 1488 select CPU_SUPPORTS_MSA 1489 select GENERIC_CSUM 1490 select HAVE_KVM 1491 select MIPS_O32_FP64_SUPPORT 1492 help 1493 Choose this option to build a kernel for release 6 or later of the 1494 MIPS32 architecture. New MIPS processors, starting with the Warrior 1495 family, are based on a MIPS32r6 processor. If you own an older 1496 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1497 1498config CPU_MIPS64_R1 1499 bool "MIPS64 Release 1" 1500 depends on SYS_HAS_CPU_MIPS64_R1 1501 select CPU_HAS_PREFETCH 1502 select CPU_SUPPORTS_32BIT_KERNEL 1503 select CPU_SUPPORTS_64BIT_KERNEL 1504 select CPU_SUPPORTS_HIGHMEM 1505 select CPU_SUPPORTS_HUGEPAGES 1506 help 1507 Choose this option to build a kernel for release 1 or later of the 1508 MIPS64 architecture. Many modern embedded systems with a 64-bit 1509 MIPS processor are based on a MIPS64 processor. If you know the 1510 specific type of processor in your system, choose those that one 1511 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1512 Release 2 of the MIPS64 architecture is available since several 1513 years so chances are you even have a MIPS64 Release 2 processor 1514 in which case you should choose CPU_MIPS64_R2 instead for better 1515 performance. 1516 1517config CPU_MIPS64_R2 1518 bool "MIPS64 Release 2" 1519 depends on SYS_HAS_CPU_MIPS64_R2 1520 select CPU_HAS_PREFETCH 1521 select CPU_SUPPORTS_32BIT_KERNEL 1522 select CPU_SUPPORTS_64BIT_KERNEL 1523 select CPU_SUPPORTS_HIGHMEM 1524 select CPU_SUPPORTS_HUGEPAGES 1525 select CPU_SUPPORTS_MSA 1526 select HAVE_KVM 1527 help 1528 Choose this option to build a kernel for release 2 or later of the 1529 MIPS64 architecture. Many modern embedded systems with a 64-bit 1530 MIPS processor are based on a MIPS64 processor. If you know the 1531 specific type of processor in your system, choose those that one 1532 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1533 1534config CPU_MIPS64_R6 1535 bool "MIPS64 Release 6" 1536 depends on SYS_HAS_CPU_MIPS64_R6 1537 select CPU_HAS_PREFETCH 1538 select CPU_SUPPORTS_32BIT_KERNEL 1539 select CPU_SUPPORTS_64BIT_KERNEL 1540 select CPU_SUPPORTS_HIGHMEM 1541 select CPU_SUPPORTS_MSA 1542 select GENERIC_CSUM 1543 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1544 select HAVE_KVM 1545 help 1546 Choose this option to build a kernel for release 6 or later of the 1547 MIPS64 architecture. New MIPS processors, starting with the Warrior 1548 family, are based on a MIPS64r6 processor. If you own an older 1549 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1550 1551config CPU_R3000 1552 bool "R3000" 1553 depends on SYS_HAS_CPU_R3000 1554 select CPU_HAS_WB 1555 select CPU_SUPPORTS_32BIT_KERNEL 1556 select CPU_SUPPORTS_HIGHMEM 1557 help 1558 Please make sure to pick the right CPU type. Linux/MIPS is not 1559 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1560 *not* work on R4000 machines and vice versa. However, since most 1561 of the supported machines have an R4000 (or similar) CPU, R4x00 1562 might be a safe bet. If the resulting kernel does not work, 1563 try to recompile with R3000. 1564 1565config CPU_TX39XX 1566 bool "R39XX" 1567 depends on SYS_HAS_CPU_TX39XX 1568 select CPU_SUPPORTS_32BIT_KERNEL 1569 1570config CPU_VR41XX 1571 bool "R41xx" 1572 depends on SYS_HAS_CPU_VR41XX 1573 select CPU_SUPPORTS_32BIT_KERNEL 1574 select CPU_SUPPORTS_64BIT_KERNEL 1575 help 1576 The options selects support for the NEC VR4100 series of processors. 1577 Only choose this option if you have one of these processors as a 1578 kernel built with this option will not run on any other type of 1579 processor or vice versa. 1580 1581config CPU_R4300 1582 bool "R4300" 1583 depends on SYS_HAS_CPU_R4300 1584 select CPU_SUPPORTS_32BIT_KERNEL 1585 select CPU_SUPPORTS_64BIT_KERNEL 1586 help 1587 MIPS Technologies R4300-series processors. 1588 1589config CPU_R4X00 1590 bool "R4x00" 1591 depends on SYS_HAS_CPU_R4X00 1592 select CPU_SUPPORTS_32BIT_KERNEL 1593 select CPU_SUPPORTS_64BIT_KERNEL 1594 select CPU_SUPPORTS_HUGEPAGES 1595 help 1596 MIPS Technologies R4000-series processors other than 4300, including 1597 the R4000, R4400, R4600, and 4700. 1598 1599config CPU_TX49XX 1600 bool "R49XX" 1601 depends on SYS_HAS_CPU_TX49XX 1602 select CPU_HAS_PREFETCH 1603 select CPU_SUPPORTS_32BIT_KERNEL 1604 select CPU_SUPPORTS_64BIT_KERNEL 1605 select CPU_SUPPORTS_HUGEPAGES 1606 1607config CPU_R5000 1608 bool "R5000" 1609 depends on SYS_HAS_CPU_R5000 1610 select CPU_SUPPORTS_32BIT_KERNEL 1611 select CPU_SUPPORTS_64BIT_KERNEL 1612 select CPU_SUPPORTS_HUGEPAGES 1613 help 1614 MIPS Technologies R5000-series processors other than the Nevada. 1615 1616config CPU_R5432 1617 bool "R5432" 1618 depends on SYS_HAS_CPU_R5432 1619 select CPU_SUPPORTS_32BIT_KERNEL 1620 select CPU_SUPPORTS_64BIT_KERNEL 1621 select CPU_SUPPORTS_HUGEPAGES 1622 1623config CPU_R5500 1624 bool "R5500" 1625 depends on SYS_HAS_CPU_R5500 1626 select CPU_SUPPORTS_32BIT_KERNEL 1627 select CPU_SUPPORTS_64BIT_KERNEL 1628 select CPU_SUPPORTS_HUGEPAGES 1629 help 1630 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1631 instruction set. 1632 1633config CPU_NEVADA 1634 bool "RM52xx" 1635 depends on SYS_HAS_CPU_NEVADA 1636 select CPU_SUPPORTS_32BIT_KERNEL 1637 select CPU_SUPPORTS_64BIT_KERNEL 1638 select CPU_SUPPORTS_HUGEPAGES 1639 help 1640 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1641 1642config CPU_R8000 1643 bool "R8000" 1644 depends on SYS_HAS_CPU_R8000 1645 select CPU_HAS_PREFETCH 1646 select CPU_SUPPORTS_64BIT_KERNEL 1647 help 1648 MIPS Technologies R8000 processors. Note these processors are 1649 uncommon and the support for them is incomplete. 1650 1651config CPU_R10000 1652 bool "R10000" 1653 depends on SYS_HAS_CPU_R10000 1654 select CPU_HAS_PREFETCH 1655 select CPU_SUPPORTS_32BIT_KERNEL 1656 select CPU_SUPPORTS_64BIT_KERNEL 1657 select CPU_SUPPORTS_HIGHMEM 1658 select CPU_SUPPORTS_HUGEPAGES 1659 help 1660 MIPS Technologies R10000-series processors. 1661 1662config CPU_RM7000 1663 bool "RM7000" 1664 depends on SYS_HAS_CPU_RM7000 1665 select CPU_HAS_PREFETCH 1666 select CPU_SUPPORTS_32BIT_KERNEL 1667 select CPU_SUPPORTS_64BIT_KERNEL 1668 select CPU_SUPPORTS_HIGHMEM 1669 select CPU_SUPPORTS_HUGEPAGES 1670 1671config CPU_SB1 1672 bool "SB1" 1673 depends on SYS_HAS_CPU_SB1 1674 select CPU_SUPPORTS_32BIT_KERNEL 1675 select CPU_SUPPORTS_64BIT_KERNEL 1676 select CPU_SUPPORTS_HIGHMEM 1677 select CPU_SUPPORTS_HUGEPAGES 1678 select WEAK_ORDERING 1679 1680config CPU_CAVIUM_OCTEON 1681 bool "Cavium Octeon processor" 1682 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1683 select CPU_HAS_PREFETCH 1684 select CPU_SUPPORTS_64BIT_KERNEL 1685 select WEAK_ORDERING 1686 select CPU_SUPPORTS_HIGHMEM 1687 select CPU_SUPPORTS_HUGEPAGES 1688 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1689 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1690 select MIPS_L1_CACHE_SHIFT_7 1691 select HAVE_KVM 1692 help 1693 The Cavium Octeon processor is a highly integrated chip containing 1694 many ethernet hardware widgets for networking tasks. The processor 1695 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1696 Full details can be found at http://www.caviumnetworks.com. 1697 1698config CPU_BMIPS 1699 bool "Broadcom BMIPS" 1700 depends on SYS_HAS_CPU_BMIPS 1701 select CPU_MIPS32 1702 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1703 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1704 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1705 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1706 select CPU_SUPPORTS_32BIT_KERNEL 1707 select DMA_NONCOHERENT 1708 select IRQ_MIPS_CPU 1709 select SWAP_IO_SPACE 1710 select WEAK_ORDERING 1711 select CPU_SUPPORTS_HIGHMEM 1712 select CPU_HAS_PREFETCH 1713 select CPU_SUPPORTS_CPUFREQ 1714 select MIPS_EXTERNAL_TIMER 1715 help 1716 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1717 1718config CPU_XLR 1719 bool "Netlogic XLR SoC" 1720 depends on SYS_HAS_CPU_XLR 1721 select CPU_SUPPORTS_32BIT_KERNEL 1722 select CPU_SUPPORTS_64BIT_KERNEL 1723 select CPU_SUPPORTS_HIGHMEM 1724 select CPU_SUPPORTS_HUGEPAGES 1725 select WEAK_ORDERING 1726 select WEAK_REORDERING_BEYOND_LLSC 1727 help 1728 Netlogic Microsystems XLR/XLS processors. 1729 1730config CPU_XLP 1731 bool "Netlogic XLP SoC" 1732 depends on SYS_HAS_CPU_XLP 1733 select CPU_SUPPORTS_32BIT_KERNEL 1734 select CPU_SUPPORTS_64BIT_KERNEL 1735 select CPU_SUPPORTS_HIGHMEM 1736 select WEAK_ORDERING 1737 select WEAK_REORDERING_BEYOND_LLSC 1738 select CPU_HAS_PREFETCH 1739 select CPU_MIPSR2 1740 select CPU_SUPPORTS_HUGEPAGES 1741 select MIPS_ASID_BITS_VARIABLE 1742 help 1743 Netlogic Microsystems XLP processors. 1744endchoice 1745 1746config CPU_MIPS32_3_5_FEATURES 1747 bool "MIPS32 Release 3.5 Features" 1748 depends on SYS_HAS_CPU_MIPS32_R3_5 1749 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1750 help 1751 Choose this option to build a kernel for release 2 or later of the 1752 MIPS32 architecture including features from the 3.5 release such as 1753 support for Enhanced Virtual Addressing (EVA). 1754 1755config CPU_MIPS32_3_5_EVA 1756 bool "Enhanced Virtual Addressing (EVA)" 1757 depends on CPU_MIPS32_3_5_FEATURES 1758 select EVA 1759 default y 1760 help 1761 Choose this option if you want to enable the Enhanced Virtual 1762 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1763 One of its primary benefits is an increase in the maximum size 1764 of lowmem (up to 3GB). If unsure, say 'N' here. 1765 1766config CPU_MIPS32_R5_FEATURES 1767 bool "MIPS32 Release 5 Features" 1768 depends on SYS_HAS_CPU_MIPS32_R5 1769 depends on CPU_MIPS32_R2 1770 help 1771 Choose this option to build a kernel for release 2 or later of the 1772 MIPS32 architecture including features from release 5 such as 1773 support for Extended Physical Addressing (XPA). 1774 1775config CPU_MIPS32_R5_XPA 1776 bool "Extended Physical Addressing (XPA)" 1777 depends on CPU_MIPS32_R5_FEATURES 1778 depends on !EVA 1779 depends on !PAGE_SIZE_4KB 1780 depends on SYS_SUPPORTS_HIGHMEM 1781 select XPA 1782 select HIGHMEM 1783 select ARCH_PHYS_ADDR_T_64BIT 1784 default n 1785 help 1786 Choose this option if you want to enable the Extended Physical 1787 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1788 benefit is to increase physical addressing equal to or greater 1789 than 40 bits. Note that this has the side effect of turning on 1790 64-bit addressing which in turn makes the PTEs 64-bit in size. 1791 If unsure, say 'N' here. 1792 1793if CPU_LOONGSON2F 1794config CPU_NOP_WORKAROUNDS 1795 bool 1796 1797config CPU_JUMP_WORKAROUNDS 1798 bool 1799 1800config CPU_LOONGSON2F_WORKAROUNDS 1801 bool "Loongson 2F Workarounds" 1802 default y 1803 select CPU_NOP_WORKAROUNDS 1804 select CPU_JUMP_WORKAROUNDS 1805 help 1806 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1807 require workarounds. Without workarounds the system may hang 1808 unexpectedly. For more information please refer to the gas 1809 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1810 1811 Loongson 2F03 and later have fixed these issues and no workarounds 1812 are needed. The workarounds have no significant side effect on them 1813 but may decrease the performance of the system so this option should 1814 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1815 systems. 1816 1817 If unsure, please say Y. 1818endif # CPU_LOONGSON2F 1819 1820config SYS_SUPPORTS_ZBOOT 1821 bool 1822 select HAVE_KERNEL_GZIP 1823 select HAVE_KERNEL_BZIP2 1824 select HAVE_KERNEL_LZ4 1825 select HAVE_KERNEL_LZMA 1826 select HAVE_KERNEL_LZO 1827 select HAVE_KERNEL_XZ 1828 1829config SYS_SUPPORTS_ZBOOT_UART16550 1830 bool 1831 select SYS_SUPPORTS_ZBOOT 1832 1833config SYS_SUPPORTS_ZBOOT_UART_PROM 1834 bool 1835 select SYS_SUPPORTS_ZBOOT 1836 1837config CPU_LOONGSON2 1838 bool 1839 select CPU_SUPPORTS_32BIT_KERNEL 1840 select CPU_SUPPORTS_64BIT_KERNEL 1841 select CPU_SUPPORTS_HIGHMEM 1842 select CPU_SUPPORTS_HUGEPAGES 1843 1844config CPU_LOONGSON1 1845 bool 1846 select CPU_MIPS32 1847 select CPU_MIPSR2 1848 select CPU_HAS_PREFETCH 1849 select CPU_SUPPORTS_32BIT_KERNEL 1850 select CPU_SUPPORTS_HIGHMEM 1851 select CPU_SUPPORTS_CPUFREQ 1852 1853config CPU_BMIPS32_3300 1854 select SMP_UP if SMP 1855 bool 1856 1857config CPU_BMIPS4350 1858 bool 1859 select SYS_SUPPORTS_SMP 1860 select SYS_SUPPORTS_HOTPLUG_CPU 1861 1862config CPU_BMIPS4380 1863 bool 1864 select MIPS_L1_CACHE_SHIFT_6 1865 select SYS_SUPPORTS_SMP 1866 select SYS_SUPPORTS_HOTPLUG_CPU 1867 select CPU_HAS_RIXI 1868 1869config CPU_BMIPS5000 1870 bool 1871 select MIPS_CPU_SCACHE 1872 select MIPS_L1_CACHE_SHIFT_7 1873 select SYS_SUPPORTS_SMP 1874 select SYS_SUPPORTS_HOTPLUG_CPU 1875 select CPU_HAS_RIXI 1876 1877config SYS_HAS_CPU_LOONGSON3 1878 bool 1879 select CPU_SUPPORTS_CPUFREQ 1880 select CPU_HAS_RIXI 1881 1882config SYS_HAS_CPU_LOONGSON2E 1883 bool 1884 1885config SYS_HAS_CPU_LOONGSON2F 1886 bool 1887 select CPU_SUPPORTS_CPUFREQ 1888 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1889 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1890 1891config SYS_HAS_CPU_LOONGSON1B 1892 bool 1893 1894config SYS_HAS_CPU_LOONGSON1C 1895 bool 1896 1897config SYS_HAS_CPU_MIPS32_R1 1898 bool 1899 1900config SYS_HAS_CPU_MIPS32_R2 1901 bool 1902 1903config SYS_HAS_CPU_MIPS32_R3_5 1904 bool 1905 1906config SYS_HAS_CPU_MIPS32_R5 1907 bool 1908 1909config SYS_HAS_CPU_MIPS32_R6 1910 bool 1911 1912config SYS_HAS_CPU_MIPS64_R1 1913 bool 1914 1915config SYS_HAS_CPU_MIPS64_R2 1916 bool 1917 1918config SYS_HAS_CPU_MIPS64_R6 1919 bool 1920 1921config SYS_HAS_CPU_R3000 1922 bool 1923 1924config SYS_HAS_CPU_TX39XX 1925 bool 1926 1927config SYS_HAS_CPU_VR41XX 1928 bool 1929 1930config SYS_HAS_CPU_R4300 1931 bool 1932 1933config SYS_HAS_CPU_R4X00 1934 bool 1935 1936config SYS_HAS_CPU_TX49XX 1937 bool 1938 1939config SYS_HAS_CPU_R5000 1940 bool 1941 1942config SYS_HAS_CPU_R5432 1943 bool 1944 1945config SYS_HAS_CPU_R5500 1946 bool 1947 1948config SYS_HAS_CPU_NEVADA 1949 bool 1950 1951config SYS_HAS_CPU_R8000 1952 bool 1953 1954config SYS_HAS_CPU_R10000 1955 bool 1956 1957config SYS_HAS_CPU_RM7000 1958 bool 1959 1960config SYS_HAS_CPU_SB1 1961 bool 1962 1963config SYS_HAS_CPU_CAVIUM_OCTEON 1964 bool 1965 1966config SYS_HAS_CPU_BMIPS 1967 bool 1968 1969config SYS_HAS_CPU_BMIPS32_3300 1970 bool 1971 select SYS_HAS_CPU_BMIPS 1972 1973config SYS_HAS_CPU_BMIPS4350 1974 bool 1975 select SYS_HAS_CPU_BMIPS 1976 1977config SYS_HAS_CPU_BMIPS4380 1978 bool 1979 select SYS_HAS_CPU_BMIPS 1980 1981config SYS_HAS_CPU_BMIPS5000 1982 bool 1983 select SYS_HAS_CPU_BMIPS 1984 1985config SYS_HAS_CPU_XLR 1986 bool 1987 1988config SYS_HAS_CPU_XLP 1989 bool 1990 1991config MIPS_MALTA_PM 1992 depends on MIPS_MALTA 1993 depends on PCI 1994 bool 1995 default y 1996 1997# 1998# CPU may reorder R->R, R->W, W->R, W->W 1999# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2000# 2001config WEAK_ORDERING 2002 bool 2003 2004# 2005# CPU may reorder reads and writes beyond LL/SC 2006# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2007# 2008config WEAK_REORDERING_BEYOND_LLSC 2009 bool 2010endmenu 2011 2012# 2013# These two indicate any level of the MIPS32 and MIPS64 architecture 2014# 2015config CPU_MIPS32 2016 bool 2017 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2018 2019config CPU_MIPS64 2020 bool 2021 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2022 2023# 2024# These two indicate the revision of the architecture, either Release 1 or Release 2 2025# 2026config CPU_MIPSR1 2027 bool 2028 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2029 2030config CPU_MIPSR2 2031 bool 2032 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2033 select CPU_HAS_RIXI 2034 select MIPS_SPRAM 2035 2036config CPU_MIPSR6 2037 bool 2038 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2039 select CPU_HAS_RIXI 2040 select HAVE_ARCH_BITREVERSE 2041 select MIPS_ASID_BITS_VARIABLE 2042 select MIPS_SPRAM 2043 2044config EVA 2045 bool 2046 2047config XPA 2048 bool 2049 2050config SYS_SUPPORTS_32BIT_KERNEL 2051 bool 2052config SYS_SUPPORTS_64BIT_KERNEL 2053 bool 2054config CPU_SUPPORTS_32BIT_KERNEL 2055 bool 2056config CPU_SUPPORTS_64BIT_KERNEL 2057 bool 2058config CPU_SUPPORTS_CPUFREQ 2059 bool 2060config CPU_SUPPORTS_ADDRWINCFG 2061 bool 2062config CPU_SUPPORTS_HUGEPAGES 2063 bool 2064config CPU_SUPPORTS_UNCACHED_ACCELERATED 2065 bool 2066config MIPS_PGD_C0_CONTEXT 2067 bool 2068 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2069 2070# 2071# Set to y for ptrace access to watch registers. 2072# 2073config HARDWARE_WATCHPOINTS 2074 bool 2075 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2076 2077menu "Kernel type" 2078 2079choice 2080 prompt "Kernel code model" 2081 help 2082 You should only select this option if you have a workload that 2083 actually benefits from 64-bit processing or if your machine has 2084 large memory. You will only be presented a single option in this 2085 menu if your system does not support both 32-bit and 64-bit kernels. 2086 2087config 32BIT 2088 bool "32-bit kernel" 2089 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2090 select TRAD_SIGNALS 2091 help 2092 Select this option if you want to build a 32-bit kernel. 2093 2094config 64BIT 2095 bool "64-bit kernel" 2096 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2097 help 2098 Select this option if you want to build a 64-bit kernel. 2099 2100endchoice 2101 2102config KVM_GUEST 2103 bool "KVM Guest Kernel" 2104 depends on BROKEN_ON_SMP 2105 help 2106 Select this option if building a guest kernel for KVM (Trap & Emulate) 2107 mode. 2108 2109config KVM_GUEST_TIMER_FREQ 2110 int "Count/Compare Timer Frequency (MHz)" 2111 depends on KVM_GUEST 2112 default 100 2113 help 2114 Set this to non-zero if building a guest kernel for KVM to skip RTC 2115 emulation when determining guest CPU Frequency. Instead, the guest's 2116 timer frequency is specified directly. 2117 2118config MIPS_VA_BITS_48 2119 bool "48 bits virtual memory" 2120 depends on 64BIT 2121 help 2122 Support a maximum at least 48 bits of application virtual 2123 memory. Default is 40 bits or less, depending on the CPU. 2124 For page sizes 16k and above, this option results in a small 2125 memory overhead for page tables. For 4k page size, a fourth 2126 level of page tables is added which imposes both a memory 2127 overhead as well as slower TLB fault handling. 2128 2129 If unsure, say N. 2130 2131choice 2132 prompt "Kernel page size" 2133 default PAGE_SIZE_4KB 2134 2135config PAGE_SIZE_4KB 2136 bool "4kB" 2137 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2138 help 2139 This option select the standard 4kB Linux page size. On some 2140 R3000-family processors this is the only available page size. Using 2141 4kB page size will minimize memory consumption and is therefore 2142 recommended for low memory systems. 2143 2144config PAGE_SIZE_8KB 2145 bool "8kB" 2146 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2147 depends on !MIPS_VA_BITS_48 2148 help 2149 Using 8kB page size will result in higher performance kernel at 2150 the price of higher memory consumption. This option is available 2151 only on R8000 and cnMIPS processors. Note that you will need a 2152 suitable Linux distribution to support this. 2153 2154config PAGE_SIZE_16KB 2155 bool "16kB" 2156 depends on !CPU_R3000 && !CPU_TX39XX 2157 help 2158 Using 16kB page size will result in higher performance kernel at 2159 the price of higher memory consumption. This option is available on 2160 all non-R3000 family processors. Note that you will need a suitable 2161 Linux distribution to support this. 2162 2163config PAGE_SIZE_32KB 2164 bool "32kB" 2165 depends on CPU_CAVIUM_OCTEON 2166 depends on !MIPS_VA_BITS_48 2167 help 2168 Using 32kB page size will result in higher performance kernel at 2169 the price of higher memory consumption. This option is available 2170 only on cnMIPS cores. Note that you will need a suitable Linux 2171 distribution to support this. 2172 2173config PAGE_SIZE_64KB 2174 bool "64kB" 2175 depends on !CPU_R3000 && !CPU_TX39XX 2176 help 2177 Using 64kB page size will result in higher performance kernel at 2178 the price of higher memory consumption. This option is available on 2179 all non-R3000 family processor. Not that at the time of this 2180 writing this option is still high experimental. 2181 2182endchoice 2183 2184config FORCE_MAX_ZONEORDER 2185 int "Maximum zone order" 2186 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2187 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2188 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2189 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2190 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2191 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2192 range 11 64 2193 default "11" 2194 help 2195 The kernel memory allocator divides physically contiguous memory 2196 blocks into "zones", where each zone is a power of two number of 2197 pages. This option selects the largest power of two that the kernel 2198 keeps in the memory allocator. If you need to allocate very large 2199 blocks of physically contiguous memory, then you may need to 2200 increase this value. 2201 2202 This config option is actually maximum order plus one. For example, 2203 a value of 11 means that the largest free memory block is 2^10 pages. 2204 2205 The page size is not necessarily 4KB. Keep this in mind 2206 when choosing a value for this option. 2207 2208config BOARD_SCACHE 2209 bool 2210 2211config IP22_CPU_SCACHE 2212 bool 2213 select BOARD_SCACHE 2214 2215# 2216# Support for a MIPS32 / MIPS64 style S-caches 2217# 2218config MIPS_CPU_SCACHE 2219 bool 2220 select BOARD_SCACHE 2221 2222config R5000_CPU_SCACHE 2223 bool 2224 select BOARD_SCACHE 2225 2226config RM7000_CPU_SCACHE 2227 bool 2228 select BOARD_SCACHE 2229 2230config SIBYTE_DMA_PAGEOPS 2231 bool "Use DMA to clear/copy pages" 2232 depends on CPU_SB1 2233 help 2234 Instead of using the CPU to zero and copy pages, use a Data Mover 2235 channel. These DMA channels are otherwise unused by the standard 2236 SiByte Linux port. Seems to give a small performance benefit. 2237 2238config CPU_HAS_PREFETCH 2239 bool 2240 2241config CPU_GENERIC_DUMP_TLB 2242 bool 2243 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2244 2245config CPU_R4K_FPU 2246 bool 2247 default y if !(CPU_R3000 || CPU_TX39XX) 2248 2249config CPU_R4K_CACHE_TLB 2250 bool 2251 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2252 2253config MIPS_MT_SMP 2254 bool "MIPS MT SMP support (1 TC on each available VPE)" 2255 default y 2256 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2257 select CPU_MIPSR2_IRQ_VI 2258 select CPU_MIPSR2_IRQ_EI 2259 select SYNC_R4K 2260 select MIPS_MT 2261 select SMP 2262 select SMP_UP 2263 select SYS_SUPPORTS_SMP 2264 select SYS_SUPPORTS_SCHED_SMT 2265 select MIPS_PERF_SHARED_TC_COUNTERS 2266 help 2267 This is a kernel model which is known as SMVP. This is supported 2268 on cores with the MT ASE and uses the available VPEs to implement 2269 virtual processors which supports SMP. This is equivalent to the 2270 Intel Hyperthreading feature. For further information go to 2271 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2272 2273config MIPS_MT 2274 bool 2275 2276config SCHED_SMT 2277 bool "SMT (multithreading) scheduler support" 2278 depends on SYS_SUPPORTS_SCHED_SMT 2279 default n 2280 help 2281 SMT scheduler support improves the CPU scheduler's decision making 2282 when dealing with MIPS MT enabled cores at a cost of slightly 2283 increased overhead in some places. If unsure say N here. 2284 2285config SYS_SUPPORTS_SCHED_SMT 2286 bool 2287 2288config SYS_SUPPORTS_MULTITHREADING 2289 bool 2290 2291config MIPS_MT_FPAFF 2292 bool "Dynamic FPU affinity for FP-intensive threads" 2293 default y 2294 depends on MIPS_MT_SMP 2295 2296config MIPSR2_TO_R6_EMULATOR 2297 bool "MIPS R2-to-R6 emulator" 2298 depends on CPU_MIPSR6 2299 default y 2300 help 2301 Choose this option if you want to run non-R6 MIPS userland code. 2302 Even if you say 'Y' here, the emulator will still be disabled by 2303 default. You can enable it using the 'mipsr2emu' kernel option. 2304 The only reason this is a build-time option is to save ~14K from the 2305 final kernel image. 2306 2307config MIPS_VPE_LOADER 2308 bool "VPE loader support." 2309 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 2310 select CPU_MIPSR2_IRQ_VI 2311 select CPU_MIPSR2_IRQ_EI 2312 select MIPS_MT 2313 help 2314 Includes a loader for loading an elf relocatable object 2315 onto another VPE and running it. 2316 2317config MIPS_VPE_LOADER_CMP 2318 bool 2319 default "y" 2320 depends on MIPS_VPE_LOADER && MIPS_CMP 2321 2322config MIPS_VPE_LOADER_MT 2323 bool 2324 default "y" 2325 depends on MIPS_VPE_LOADER && !MIPS_CMP 2326 2327config MIPS_VPE_LOADER_TOM 2328 bool "Load VPE program into memory hidden from linux" 2329 depends on MIPS_VPE_LOADER 2330 default y 2331 help 2332 The loader can use memory that is present but has been hidden from 2333 Linux using the kernel command line option "mem=xxMB". It's up to 2334 you to ensure the amount you put in the option and the space your 2335 program requires is less or equal to the amount physically present. 2336 2337config MIPS_VPE_APSP_API 2338 bool "Enable support for AP/SP API (RTLX)" 2339 depends on MIPS_VPE_LOADER 2340 help 2341 2342config MIPS_VPE_APSP_API_CMP 2343 bool 2344 default "y" 2345 depends on MIPS_VPE_APSP_API && MIPS_CMP 2346 2347config MIPS_VPE_APSP_API_MT 2348 bool 2349 default "y" 2350 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2351 2352config MIPS_CMP 2353 bool "MIPS CMP framework support (DEPRECATED)" 2354 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2355 select SMP 2356 select SYNC_R4K 2357 select SYS_SUPPORTS_SMP 2358 select WEAK_ORDERING 2359 default n 2360 help 2361 Select this if you are using a bootloader which implements the "CMP 2362 framework" protocol (ie. YAMON) and want your kernel to make use of 2363 its ability to start secondary CPUs. 2364 2365 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2366 instead of this. 2367 2368config MIPS_CPS 2369 bool "MIPS Coherent Processing System support" 2370 depends on SYS_SUPPORTS_MIPS_CPS 2371 select MIPS_CM 2372 select MIPS_CPS_PM if HOTPLUG_CPU 2373 select SMP 2374 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2375 select SYS_SUPPORTS_HOTPLUG_CPU 2376 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2377 select SYS_SUPPORTS_SMP 2378 select WEAK_ORDERING 2379 help 2380 Select this if you wish to run an SMP kernel across multiple cores 2381 within a MIPS Coherent Processing System. When this option is 2382 enabled the kernel will probe for other cores and boot them with 2383 no external assistance. It is safe to enable this when hardware 2384 support is unavailable. 2385 2386config MIPS_CPS_PM 2387 depends on MIPS_CPS 2388 bool 2389 2390config MIPS_CM 2391 bool 2392 select MIPS_CPC 2393 2394config MIPS_CPC 2395 bool 2396 2397config SB1_PASS_2_WORKAROUNDS 2398 bool 2399 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2400 default y 2401 2402config SB1_PASS_2_1_WORKAROUNDS 2403 bool 2404 depends on CPU_SB1 && CPU_SB1_PASS_2 2405 default y 2406 2407 2408config ARCH_PHYS_ADDR_T_64BIT 2409 bool 2410 2411choice 2412 prompt "SmartMIPS or microMIPS ASE support" 2413 2414config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2415 bool "None" 2416 help 2417 Select this if you want neither microMIPS nor SmartMIPS support 2418 2419config CPU_HAS_SMARTMIPS 2420 depends on SYS_SUPPORTS_SMARTMIPS 2421 bool "SmartMIPS" 2422 help 2423 SmartMIPS is a extension of the MIPS32 architecture aimed at 2424 increased security at both hardware and software level for 2425 smartcards. Enabling this option will allow proper use of the 2426 SmartMIPS instructions by Linux applications. However a kernel with 2427 this option will not work on a MIPS core without SmartMIPS core. If 2428 you don't know you probably don't have SmartMIPS and should say N 2429 here. 2430 2431config CPU_MICROMIPS 2432 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2433 bool "microMIPS" 2434 help 2435 When this option is enabled the kernel will be built using the 2436 microMIPS ISA 2437 2438endchoice 2439 2440config CPU_HAS_MSA 2441 bool "Support for the MIPS SIMD Architecture" 2442 depends on CPU_SUPPORTS_MSA 2443 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2444 help 2445 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2446 and a set of SIMD instructions to operate on them. When this option 2447 is enabled the kernel will support allocating & switching MSA 2448 vector register contexts. If you know that your kernel will only be 2449 running on CPUs which do not support MSA or that your userland will 2450 not be making use of it then you may wish to say N here to reduce 2451 the size & complexity of your kernel. 2452 2453 If unsure, say Y. 2454 2455config CPU_HAS_WB 2456 bool 2457 2458config XKS01 2459 bool 2460 2461config CPU_HAS_RIXI 2462 bool 2463 2464# 2465# Vectored interrupt mode is an R2 feature 2466# 2467config CPU_MIPSR2_IRQ_VI 2468 bool 2469 2470# 2471# Extended interrupt mode is an R2 feature 2472# 2473config CPU_MIPSR2_IRQ_EI 2474 bool 2475 2476config CPU_HAS_SYNC 2477 bool 2478 depends on !CPU_R3000 2479 default y 2480 2481# 2482# CPU non-features 2483# 2484config CPU_DADDI_WORKAROUNDS 2485 bool 2486 2487config CPU_R4000_WORKAROUNDS 2488 bool 2489 select CPU_R4400_WORKAROUNDS 2490 2491config CPU_R4400_WORKAROUNDS 2492 bool 2493 2494config MIPS_ASID_SHIFT 2495 int 2496 default 6 if CPU_R3000 || CPU_TX39XX 2497 default 4 if CPU_R8000 2498 default 0 2499 2500config MIPS_ASID_BITS 2501 int 2502 default 0 if MIPS_ASID_BITS_VARIABLE 2503 default 6 if CPU_R3000 || CPU_TX39XX 2504 default 8 2505 2506config MIPS_ASID_BITS_VARIABLE 2507 bool 2508 2509# 2510# - Highmem only makes sense for the 32-bit kernel. 2511# - The current highmem code will only work properly on physically indexed 2512# caches such as R3000, SB1, R7000 or those that look like they're virtually 2513# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2514# moment we protect the user and offer the highmem option only on machines 2515# where it's known to be safe. This will not offer highmem on a few systems 2516# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2517# indexed CPUs but we're playing safe. 2518# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2519# know they might have memory configurations that could make use of highmem 2520# support. 2521# 2522config HIGHMEM 2523 bool "High Memory Support" 2524 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2525 2526config CPU_SUPPORTS_HIGHMEM 2527 bool 2528 2529config SYS_SUPPORTS_HIGHMEM 2530 bool 2531 2532config SYS_SUPPORTS_SMARTMIPS 2533 bool 2534 2535config SYS_SUPPORTS_MICROMIPS 2536 bool 2537 2538config SYS_SUPPORTS_MIPS16 2539 bool 2540 help 2541 This option must be set if a kernel might be executed on a MIPS16- 2542 enabled CPU even if MIPS16 is not actually being used. In other 2543 words, it makes the kernel MIPS16-tolerant. 2544 2545config CPU_SUPPORTS_MSA 2546 bool 2547 2548config ARCH_FLATMEM_ENABLE 2549 def_bool y 2550 depends on !NUMA && !CPU_LOONGSON2 2551 2552config ARCH_DISCONTIGMEM_ENABLE 2553 bool 2554 default y if SGI_IP27 2555 help 2556 Say Y to support efficient handling of discontiguous physical memory, 2557 for architectures which are either NUMA (Non-Uniform Memory Access) 2558 or have huge holes in the physical address space for other reasons. 2559 See <file:Documentation/vm/numa> for more. 2560 2561config ARCH_SPARSEMEM_ENABLE 2562 bool 2563 select SPARSEMEM_STATIC 2564 2565config NUMA 2566 bool "NUMA Support" 2567 depends on SYS_SUPPORTS_NUMA 2568 help 2569 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2570 Access). This option improves performance on systems with more 2571 than two nodes; on two node systems it is generally better to 2572 leave it disabled; on single node systems disable this option 2573 disabled. 2574 2575config SYS_SUPPORTS_NUMA 2576 bool 2577 2578config RELOCATABLE 2579 bool "Relocatable kernel" 2580 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2581 help 2582 This builds a kernel image that retains relocation information 2583 so it can be loaded someplace besides the default 1MB. 2584 The relocations make the kernel binary about 15% larger, 2585 but are discarded at runtime 2586 2587config RELOCATION_TABLE_SIZE 2588 hex "Relocation table size" 2589 depends on RELOCATABLE 2590 range 0x0 0x01000000 2591 default "0x00100000" 2592 ---help--- 2593 A table of relocation data will be appended to the kernel binary 2594 and parsed at boot to fix up the relocated kernel. 2595 2596 This option allows the amount of space reserved for the table to be 2597 adjusted, although the default of 1Mb should be ok in most cases. 2598 2599 The build will fail and a valid size suggested if this is too small. 2600 2601 If unsure, leave at the default value. 2602 2603config RANDOMIZE_BASE 2604 bool "Randomize the address of the kernel image" 2605 depends on RELOCATABLE 2606 ---help--- 2607 Randomizes the physical and virtual address at which the 2608 kernel image is loaded, as a security feature that 2609 deters exploit attempts relying on knowledge of the location 2610 of kernel internals. 2611 2612 Entropy is generated using any coprocessor 0 registers available. 2613 2614 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2615 2616 If unsure, say N. 2617 2618config RANDOMIZE_BASE_MAX_OFFSET 2619 hex "Maximum kASLR offset" if EXPERT 2620 depends on RANDOMIZE_BASE 2621 range 0x0 0x40000000 if EVA || 64BIT 2622 range 0x0 0x08000000 2623 default "0x01000000" 2624 ---help--- 2625 When kASLR is active, this provides the maximum offset that will 2626 be applied to the kernel image. It should be set according to the 2627 amount of physical RAM available in the target system minus 2628 PHYSICAL_START and must be a power of 2. 2629 2630 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2631 EVA or 64-bit. The default is 16Mb. 2632 2633config NODES_SHIFT 2634 int 2635 default "6" 2636 depends on NEED_MULTIPLE_NODES 2637 2638config HW_PERF_EVENTS 2639 bool "Enable hardware performance counter support for perf events" 2640 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2641 default y 2642 help 2643 Enable hardware performance counter support for perf events. If 2644 disabled, perf events will use software events only. 2645 2646source "mm/Kconfig" 2647 2648config SMP 2649 bool "Multi-Processing support" 2650 depends on SYS_SUPPORTS_SMP 2651 help 2652 This enables support for systems with more than one CPU. If you have 2653 a system with only one CPU, say N. If you have a system with more 2654 than one CPU, say Y. 2655 2656 If you say N here, the kernel will run on uni- and multiprocessor 2657 machines, but will use only one CPU of a multiprocessor machine. If 2658 you say Y here, the kernel will run on many, but not all, 2659 uniprocessor machines. On a uniprocessor machine, the kernel 2660 will run faster if you say N here. 2661 2662 People using multiprocessor machines who say Y here should also say 2663 Y to "Enhanced Real Time Clock Support", below. 2664 2665 See also the SMP-HOWTO available at 2666 <http://www.tldp.org/docs.html#howto>. 2667 2668 If you don't know what to do here, say N. 2669 2670config HOTPLUG_CPU 2671 bool "Support for hot-pluggable CPUs" 2672 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2673 help 2674 Say Y here to allow turning CPUs off and on. CPUs can be 2675 controlled through /sys/devices/system/cpu. 2676 (Note: power management support will enable this option 2677 automatically on SMP systems. ) 2678 Say N if you want to disable CPU hotplug. 2679 2680config SMP_UP 2681 bool 2682 2683config SYS_SUPPORTS_MIPS_CMP 2684 bool 2685 2686config SYS_SUPPORTS_MIPS_CPS 2687 bool 2688 2689config SYS_SUPPORTS_SMP 2690 bool 2691 2692config NR_CPUS_DEFAULT_4 2693 bool 2694 2695config NR_CPUS_DEFAULT_8 2696 bool 2697 2698config NR_CPUS_DEFAULT_16 2699 bool 2700 2701config NR_CPUS_DEFAULT_32 2702 bool 2703 2704config NR_CPUS_DEFAULT_64 2705 bool 2706 2707config NR_CPUS 2708 int "Maximum number of CPUs (2-256)" 2709 range 2 256 2710 depends on SMP 2711 default "4" if NR_CPUS_DEFAULT_4 2712 default "8" if NR_CPUS_DEFAULT_8 2713 default "16" if NR_CPUS_DEFAULT_16 2714 default "32" if NR_CPUS_DEFAULT_32 2715 default "64" if NR_CPUS_DEFAULT_64 2716 help 2717 This allows you to specify the maximum number of CPUs which this 2718 kernel will support. The maximum supported value is 32 for 32-bit 2719 kernel and 64 for 64-bit kernels; the minimum value which makes 2720 sense is 1 for Qemu (useful only for kernel debugging purposes) 2721 and 2 for all others. 2722 2723 This is purely to save memory - each supported CPU adds 2724 approximately eight kilobytes to the kernel image. For best 2725 performance should round up your number of processors to the next 2726 power of two. 2727 2728config MIPS_PERF_SHARED_TC_COUNTERS 2729 bool 2730 2731# 2732# Timer Interrupt Frequency Configuration 2733# 2734 2735choice 2736 prompt "Timer frequency" 2737 default HZ_250 2738 help 2739 Allows the configuration of the timer frequency. 2740 2741 config HZ_24 2742 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2743 2744 config HZ_48 2745 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2746 2747 config HZ_100 2748 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2749 2750 config HZ_128 2751 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2752 2753 config HZ_250 2754 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2755 2756 config HZ_256 2757 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2758 2759 config HZ_1000 2760 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2761 2762 config HZ_1024 2763 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2764 2765endchoice 2766 2767config SYS_SUPPORTS_24HZ 2768 bool 2769 2770config SYS_SUPPORTS_48HZ 2771 bool 2772 2773config SYS_SUPPORTS_100HZ 2774 bool 2775 2776config SYS_SUPPORTS_128HZ 2777 bool 2778 2779config SYS_SUPPORTS_250HZ 2780 bool 2781 2782config SYS_SUPPORTS_256HZ 2783 bool 2784 2785config SYS_SUPPORTS_1000HZ 2786 bool 2787 2788config SYS_SUPPORTS_1024HZ 2789 bool 2790 2791config SYS_SUPPORTS_ARBIT_HZ 2792 bool 2793 default y if !SYS_SUPPORTS_24HZ && \ 2794 !SYS_SUPPORTS_48HZ && \ 2795 !SYS_SUPPORTS_100HZ && \ 2796 !SYS_SUPPORTS_128HZ && \ 2797 !SYS_SUPPORTS_250HZ && \ 2798 !SYS_SUPPORTS_256HZ && \ 2799 !SYS_SUPPORTS_1000HZ && \ 2800 !SYS_SUPPORTS_1024HZ 2801 2802config HZ 2803 int 2804 default 24 if HZ_24 2805 default 48 if HZ_48 2806 default 100 if HZ_100 2807 default 128 if HZ_128 2808 default 250 if HZ_250 2809 default 256 if HZ_256 2810 default 1000 if HZ_1000 2811 default 1024 if HZ_1024 2812 2813config SCHED_HRTICK 2814 def_bool HIGH_RES_TIMERS 2815 2816source "kernel/Kconfig.preempt" 2817 2818config KEXEC 2819 bool "Kexec system call" 2820 select KEXEC_CORE 2821 help 2822 kexec is a system call that implements the ability to shutdown your 2823 current kernel, and to start another kernel. It is like a reboot 2824 but it is independent of the system firmware. And like a reboot 2825 you can start any kernel with it, not just Linux. 2826 2827 The name comes from the similarity to the exec system call. 2828 2829 It is an ongoing process to be certain the hardware in a machine 2830 is properly shutdown, so do not be surprised if this code does not 2831 initially work for you. As of this writing the exact hardware 2832 interface is strongly in flux, so no good recommendation can be 2833 made. 2834 2835config CRASH_DUMP 2836 bool "Kernel crash dumps" 2837 help 2838 Generate crash dump after being started by kexec. 2839 This should be normally only set in special crash dump kernels 2840 which are loaded in the main kernel with kexec-tools into 2841 a specially reserved region and then later executed after 2842 a crash by kdump/kexec. The crash dump kernel must be compiled 2843 to a memory address not used by the main kernel or firmware using 2844 PHYSICAL_START. 2845 2846config PHYSICAL_START 2847 hex "Physical address where the kernel is loaded" 2848 default "0xffffffff84000000" if 64BIT 2849 default "0x84000000" if 32BIT 2850 depends on CRASH_DUMP 2851 help 2852 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2853 If you plan to use kernel for capturing the crash dump change 2854 this value to start of the reserved region (the "X" value as 2855 specified in the "crashkernel=YM@XM" command line boot parameter 2856 passed to the panic-ed kernel). 2857 2858config SECCOMP 2859 bool "Enable seccomp to safely compute untrusted bytecode" 2860 depends on PROC_FS 2861 default y 2862 help 2863 This kernel feature is useful for number crunching applications 2864 that may need to compute untrusted bytecode during their 2865 execution. By using pipes or other transports made available to 2866 the process as file descriptors supporting the read/write 2867 syscalls, it's possible to isolate those applications in 2868 their own address space using seccomp. Once seccomp is 2869 enabled via /proc/<pid>/seccomp, it cannot be disabled 2870 and the task is only allowed to execute a few safe syscalls 2871 defined by each seccomp mode. 2872 2873 If unsure, say Y. Only embedded should say N here. 2874 2875config MIPS_O32_FP64_SUPPORT 2876 bool "Support for O32 binaries using 64-bit FP" 2877 depends on 32BIT || MIPS32_O32 2878 help 2879 When this is enabled, the kernel will support use of 64-bit floating 2880 point registers with binaries using the O32 ABI along with the 2881 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2882 32-bit MIPS systems this support is at the cost of increasing the 2883 size and complexity of the compiled FPU emulator. Thus if you are 2884 running a MIPS32 system and know that none of your userland binaries 2885 will require 64-bit floating point, you may wish to reduce the size 2886 of your kernel & potentially improve FP emulation performance by 2887 saying N here. 2888 2889 Although binutils currently supports use of this flag the details 2890 concerning its effect upon the O32 ABI in userland are still being 2891 worked on. In order to avoid userland becoming dependant upon current 2892 behaviour before the details have been finalised, this option should 2893 be considered experimental and only enabled by those working upon 2894 said details. 2895 2896 If unsure, say N. 2897 2898config USE_OF 2899 bool 2900 select OF 2901 select OF_EARLY_FLATTREE 2902 select IRQ_DOMAIN 2903 2904config BUILTIN_DTB 2905 bool 2906 2907choice 2908 prompt "Kernel appended dtb support" if USE_OF 2909 default MIPS_NO_APPENDED_DTB 2910 2911 config MIPS_NO_APPENDED_DTB 2912 bool "None" 2913 help 2914 Do not enable appended dtb support. 2915 2916 config MIPS_ELF_APPENDED_DTB 2917 bool "vmlinux" 2918 help 2919 With this option, the boot code will look for a device tree binary 2920 DTB) included in the vmlinux ELF section .appended_dtb. By default 2921 it is empty and the DTB can be appended using binutils command 2922 objcopy: 2923 2924 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2925 2926 This is meant as a backward compatiblity convenience for those 2927 systems with a bootloader that can't be upgraded to accommodate 2928 the documented boot protocol using a device tree. 2929 2930 config MIPS_RAW_APPENDED_DTB 2931 bool "vmlinux.bin or vmlinuz.bin" 2932 help 2933 With this option, the boot code will look for a device tree binary 2934 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2935 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2936 2937 This is meant as a backward compatibility convenience for those 2938 systems with a bootloader that can't be upgraded to accommodate 2939 the documented boot protocol using a device tree. 2940 2941 Beware that there is very little in terms of protection against 2942 this option being confused by leftover garbage in memory that might 2943 look like a DTB header after a reboot if no actual DTB is appended 2944 to vmlinux.bin. Do not leave this option active in a production kernel 2945 if you don't intend to always append a DTB. 2946endchoice 2947 2948choice 2949 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2950 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2951 !MIPS_MALTA && \ 2952 !CAVIUM_OCTEON_SOC 2953 default MIPS_CMDLINE_FROM_BOOTLOADER 2954 2955 config MIPS_CMDLINE_FROM_DTB 2956 depends on USE_OF 2957 bool "Dtb kernel arguments if available" 2958 2959 config MIPS_CMDLINE_DTB_EXTEND 2960 depends on USE_OF 2961 bool "Extend dtb kernel arguments with bootloader arguments" 2962 2963 config MIPS_CMDLINE_FROM_BOOTLOADER 2964 bool "Bootloader kernel arguments if available" 2965 2966 config MIPS_CMDLINE_BUILTIN_EXTEND 2967 depends on CMDLINE_BOOL 2968 bool "Extend builtin kernel arguments with bootloader arguments" 2969endchoice 2970 2971endmenu 2972 2973config LOCKDEP_SUPPORT 2974 bool 2975 default y 2976 2977config STACKTRACE_SUPPORT 2978 bool 2979 default y 2980 2981config HAVE_LATENCYTOP_SUPPORT 2982 bool 2983 default y 2984 2985config PGTABLE_LEVELS 2986 int 2987 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 2988 default 3 if 64BIT && !PAGE_SIZE_64KB 2989 default 2 2990 2991source "init/Kconfig" 2992 2993source "kernel/Kconfig.freezer" 2994 2995menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2996 2997config HW_HAS_EISA 2998 bool 2999config HW_HAS_PCI 3000 bool 3001 3002config PCI 3003 bool "Support for PCI controller" 3004 depends on HW_HAS_PCI 3005 select PCI_DOMAINS 3006 help 3007 Find out whether you have a PCI motherboard. PCI is the name of a 3008 bus system, i.e. the way the CPU talks to the other stuff inside 3009 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 3010 say Y, otherwise N. 3011 3012config HT_PCI 3013 bool "Support for HT-linked PCI" 3014 default y 3015 depends on CPU_LOONGSON3 3016 select PCI 3017 select PCI_DOMAINS 3018 help 3019 Loongson family machines use Hyper-Transport bus for inter-core 3020 connection and device connection. The PCI bus is a subordinate 3021 linked at HT. Choose Y for Loongson-3 based machines. 3022 3023config PCI_DOMAINS 3024 bool 3025 3026config PCI_DOMAINS_GENERIC 3027 bool 3028 3029config PCI_DRIVERS_GENERIC 3030 select PCI_DOMAINS_GENERIC if PCI_DOMAINS 3031 bool 3032 3033config PCI_DRIVERS_LEGACY 3034 def_bool !PCI_DRIVERS_GENERIC 3035 select NO_GENERIC_PCI_IOPORT_MAP 3036 3037source "drivers/pci/Kconfig" 3038 3039# 3040# ISA support is now enabled via select. Too many systems still have the one 3041# or other ISA chip on the board that users don't know about so don't expect 3042# users to choose the right thing ... 3043# 3044config ISA 3045 bool 3046 3047config EISA 3048 bool "EISA support" 3049 depends on HW_HAS_EISA 3050 select ISA 3051 select GENERIC_ISA_DMA 3052 ---help--- 3053 The Extended Industry Standard Architecture (EISA) bus was 3054 developed as an open alternative to the IBM MicroChannel bus. 3055 3056 The EISA bus provided some of the features of the IBM MicroChannel 3057 bus while maintaining backward compatibility with cards made for 3058 the older ISA bus. The EISA bus saw limited use between 1988 and 3059 1995 when it was made obsolete by the PCI bus. 3060 3061 Say Y here if you are building a kernel for an EISA-based machine. 3062 3063 Otherwise, say N. 3064 3065source "drivers/eisa/Kconfig" 3066 3067config TC 3068 bool "TURBOchannel support" 3069 depends on MACH_DECSTATION 3070 help 3071 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3072 processors. TURBOchannel programming specifications are available 3073 at: 3074 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3075 and: 3076 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3077 Linux driver support status is documented at: 3078 <http://www.linux-mips.org/wiki/DECstation> 3079 3080config MMU 3081 bool 3082 default y 3083 3084config ARCH_MMAP_RND_BITS_MIN 3085 default 12 if 64BIT 3086 default 8 3087 3088config ARCH_MMAP_RND_BITS_MAX 3089 default 18 if 64BIT 3090 default 15 3091 3092config ARCH_MMAP_RND_COMPAT_BITS_MIN 3093 default 8 3094 3095config ARCH_MMAP_RND_COMPAT_BITS_MAX 3096 default 15 3097 3098config I8253 3099 bool 3100 select CLKSRC_I8253 3101 select CLKEVT_I8253 3102 select MIPS_EXTERNAL_TIMER 3103 3104config ZONE_DMA 3105 bool 3106 3107config ZONE_DMA32 3108 bool 3109 3110source "drivers/pcmcia/Kconfig" 3111 3112config RAPIDIO 3113 tristate "RapidIO support" 3114 depends on PCI 3115 default n 3116 help 3117 If you say Y here, the kernel will include drivers and 3118 infrastructure code to support RapidIO interconnect devices. 3119 3120source "drivers/rapidio/Kconfig" 3121 3122endmenu 3123 3124menu "Executable file formats" 3125 3126source "fs/Kconfig.binfmt" 3127 3128config TRAD_SIGNALS 3129 bool 3130 3131config MIPS32_COMPAT 3132 bool 3133 3134config COMPAT 3135 bool 3136 3137config SYSVIPC_COMPAT 3138 bool 3139 3140config MIPS32_O32 3141 bool "Kernel support for o32 binaries" 3142 depends on 64BIT 3143 select ARCH_WANT_OLD_COMPAT_IPC 3144 select COMPAT 3145 select MIPS32_COMPAT 3146 select SYSVIPC_COMPAT if SYSVIPC 3147 help 3148 Select this option if you want to run o32 binaries. These are pure 3149 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3150 existing binaries are in this format. 3151 3152 If unsure, say Y. 3153 3154config MIPS32_N32 3155 bool "Kernel support for n32 binaries" 3156 depends on 64BIT 3157 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3158 select COMPAT 3159 select MIPS32_COMPAT 3160 select SYSVIPC_COMPAT if SYSVIPC 3161 help 3162 Select this option if you want to run n32 binaries. These are 3163 64-bit binaries using 32-bit quantities for addressing and certain 3164 data that would normally be 64-bit. They are used in special 3165 cases. 3166 3167 If unsure, say N. 3168 3169config BINFMT_ELF32 3170 bool 3171 default y if MIPS32_O32 || MIPS32_N32 3172 select ELFCORE 3173 3174endmenu 3175 3176menu "Power management options" 3177 3178config ARCH_HIBERNATION_POSSIBLE 3179 def_bool y 3180 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3181 3182config ARCH_SUSPEND_POSSIBLE 3183 def_bool y 3184 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3185 3186source "kernel/power/Kconfig" 3187 3188endmenu 3189 3190config MIPS_EXTERNAL_TIMER 3191 bool 3192 3193menu "CPU Power Management" 3194 3195if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3196source "drivers/cpufreq/Kconfig" 3197endif 3198 3199source "drivers/cpuidle/Kconfig" 3200 3201endmenu 3202 3203source "net/Kconfig" 3204 3205source "drivers/Kconfig" 3206 3207source "drivers/firmware/Kconfig" 3208 3209source "fs/Kconfig" 3210 3211source "arch/mips/Kconfig.debug" 3212 3213source "security/Kconfig" 3214 3215source "crypto/Kconfig" 3216 3217source "lib/Kconfig" 3218 3219source "arch/mips/kvm/Kconfig" 3220