linux/arch/mips/Kconfig
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   1config MIPS
   2        bool
   3        default y
   4        select ARCH_MIGHT_HAVE_PC_PARPORT
   5        select ARCH_MIGHT_HAVE_PC_SERIO
   6        select HAVE_CONTEXT_TRACKING
   7        select HAVE_GENERIC_DMA_COHERENT
   8        select HAVE_IDE
   9        select HAVE_OPROFILE
  10        select HAVE_PERF_EVENTS
  11        select PERF_USE_VMALLOC
  12        select HAVE_ARCH_KGDB
  13        select HAVE_ARCH_SECCOMP_FILTER
  14        select HAVE_ARCH_TRACEHOOK
  15        select ARCH_HAVE_CUSTOM_GPIO_H
  16        select HAVE_FUNCTION_TRACER
  17        select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  18        select HAVE_DYNAMIC_FTRACE
  19        select HAVE_FTRACE_MCOUNT_RECORD
  20        select HAVE_C_RECORDMCOUNT
  21        select HAVE_FUNCTION_GRAPH_TRACER
  22        select HAVE_KPROBES
  23        select HAVE_KRETPROBES
  24        select HAVE_DEBUG_KMEMLEAK
  25        select HAVE_SYSCALL_TRACEPOINTS
  26        select ARCH_BINFMT_ELF_RANDOMIZE_PIE
  27        select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
  28        select RTC_LIB if !MACH_LOONGSON
  29        select GENERIC_ATOMIC64 if !64BIT
  30        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
  31        select HAVE_DMA_ATTRS
  32        select HAVE_DMA_API_DEBUG
  33        select GENERIC_IRQ_PROBE
  34        select GENERIC_IRQ_SHOW
  35        select GENERIC_PCI_IOMAP
  36        select HAVE_ARCH_JUMP_LABEL
  37        select ARCH_WANT_IPC_PARSE_VERSION
  38        select IRQ_FORCED_THREADING
  39        select HAVE_MEMBLOCK
  40        select HAVE_MEMBLOCK_NODE_MAP
  41        select ARCH_DISCARD_MEMBLOCK
  42        select GENERIC_SMP_IDLE_THREAD
  43        select BUILDTIME_EXTABLE_SORT
  44        select GENERIC_CLOCKEVENTS
  45        select GENERIC_CMOS_UPDATE
  46        select HAVE_MOD_ARCH_SPECIFIC
  47        select VIRT_TO_BUS
  48        select MODULES_USE_ELF_REL if MODULES
  49        select MODULES_USE_ELF_RELA if MODULES && 64BIT
  50        select CLONE_BACKWARDS
  51        select HAVE_DEBUG_STACKOVERFLOW
  52        select HAVE_CC_STACKPROTECTOR
  53
  54menu "Machine selection"
  55
  56choice
  57        prompt "System type"
  58        default SGI_IP22
  59
  60config MIPS_ALCHEMY
  61        bool "Alchemy processor based machines"
  62        select 64BIT_PHYS_ADDR
  63        select CEVT_R4K
  64        select CSRC_R4K
  65        select IRQ_CPU
  66        select DMA_MAYBE_COHERENT       # Au1000,1500,1100 aren't, rest is
  67        select SYS_HAS_CPU_MIPS32_R1
  68        select SYS_SUPPORTS_32BIT_KERNEL
  69        select SYS_SUPPORTS_APM_EMULATION
  70        select ARCH_REQUIRE_GPIOLIB
  71        select SYS_SUPPORTS_ZBOOT
  72
  73config AR7
  74        bool "Texas Instruments AR7"
  75        select BOOT_ELF32
  76        select DMA_NONCOHERENT
  77        select CEVT_R4K
  78        select CSRC_R4K
  79        select IRQ_CPU
  80        select NO_EXCEPT_FILL
  81        select SWAP_IO_SPACE
  82        select SYS_HAS_CPU_MIPS32_R1
  83        select SYS_HAS_EARLY_PRINTK
  84        select SYS_SUPPORTS_32BIT_KERNEL
  85        select SYS_SUPPORTS_LITTLE_ENDIAN
  86        select SYS_SUPPORTS_ZBOOT_UART16550
  87        select ARCH_REQUIRE_GPIOLIB
  88        select VLYNQ
  89        select HAVE_CLK
  90        help
  91          Support for the Texas Instruments AR7 System-on-a-Chip
  92          family: TNETD7100, 7200 and 7300.
  93
  94config ATH79
  95        bool "Atheros AR71XX/AR724X/AR913X based boards"
  96        select ARCH_REQUIRE_GPIOLIB
  97        select BOOT_RAW
  98        select CEVT_R4K
  99        select CSRC_R4K
 100        select DMA_NONCOHERENT
 101        select HAVE_CLK
 102        select CLKDEV_LOOKUP
 103        select IRQ_CPU
 104        select MIPS_MACHINE
 105        select SYS_HAS_CPU_MIPS32_R2
 106        select SYS_HAS_EARLY_PRINTK
 107        select SYS_SUPPORTS_32BIT_KERNEL
 108        select SYS_SUPPORTS_BIG_ENDIAN
 109        help
 110          Support for the Atheros AR71XX/AR724X/AR913X SoCs.
 111
 112config BCM47XX
 113        bool "Broadcom BCM47XX based boards"
 114        select ARCH_WANT_OPTIONAL_GPIOLIB
 115        select BOOT_RAW
 116        select CEVT_R4K
 117        select CSRC_R4K
 118        select DMA_NONCOHERENT
 119        select HW_HAS_PCI
 120        select IRQ_CPU
 121        select SYS_HAS_CPU_MIPS32_R1
 122        select NO_EXCEPT_FILL
 123        select SYS_SUPPORTS_32BIT_KERNEL
 124        select SYS_SUPPORTS_LITTLE_ENDIAN
 125        select SYS_HAS_EARLY_PRINTK
 126        select USE_GENERIC_EARLY_PRINTK_8250
 127        help
 128         Support for BCM47XX based boards
 129
 130config BCM63XX
 131        bool "Broadcom BCM63XX based boards"
 132        select BOOT_RAW
 133        select CEVT_R4K
 134        select CSRC_R4K
 135        select DMA_NONCOHERENT
 136        select IRQ_CPU
 137        select SYS_SUPPORTS_32BIT_KERNEL
 138        select SYS_SUPPORTS_BIG_ENDIAN
 139        select SYS_HAS_EARLY_PRINTK
 140        select SWAP_IO_SPACE
 141        select ARCH_REQUIRE_GPIOLIB
 142        select HAVE_CLK
 143        select MIPS_L1_CACHE_SHIFT_4
 144        help
 145         Support for BCM63XX based boards
 146
 147config MIPS_COBALT
 148        bool "Cobalt Server"
 149        select CEVT_R4K
 150        select CSRC_R4K
 151        select CEVT_GT641XX
 152        select DMA_NONCOHERENT
 153        select HW_HAS_PCI
 154        select I8253
 155        select I8259
 156        select IRQ_CPU
 157        select IRQ_GT641XX
 158        select PCI_GT64XXX_PCI0
 159        select PCI
 160        select SYS_HAS_CPU_NEVADA
 161        select SYS_HAS_EARLY_PRINTK
 162        select SYS_SUPPORTS_32BIT_KERNEL
 163        select SYS_SUPPORTS_64BIT_KERNEL
 164        select SYS_SUPPORTS_LITTLE_ENDIAN
 165        select USE_GENERIC_EARLY_PRINTK_8250
 166
 167config MACH_DECSTATION
 168        bool "DECstations"
 169        select BOOT_ELF32
 170        select CEVT_DS1287
 171        select CEVT_R4K
 172        select CSRC_IOASIC
 173        select CSRC_R4K
 174        select CPU_DADDI_WORKAROUNDS if 64BIT
 175        select CPU_R4000_WORKAROUNDS if 64BIT
 176        select CPU_R4400_WORKAROUNDS if 64BIT
 177        select DMA_NONCOHERENT
 178        select NO_IOPORT_MAP
 179        select IRQ_CPU
 180        select SYS_HAS_CPU_R3000
 181        select SYS_HAS_CPU_R4X00
 182        select SYS_SUPPORTS_32BIT_KERNEL
 183        select SYS_SUPPORTS_64BIT_KERNEL
 184        select SYS_SUPPORTS_LITTLE_ENDIAN
 185        select SYS_SUPPORTS_128HZ
 186        select SYS_SUPPORTS_256HZ
 187        select SYS_SUPPORTS_1024HZ
 188        select MIPS_L1_CACHE_SHIFT_4
 189        help
 190          This enables support for DEC's MIPS based workstations.  For details
 191          see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
 192          DECstation porting pages on <http://decstation.unix-ag.org/>.
 193
 194          If you have one of the following DECstation Models you definitely
 195          want to choose R4xx0 for the CPU Type:
 196
 197                DECstation 5000/50
 198                DECstation 5000/150
 199                DECstation 5000/260
 200                DECsystem 5900/260
 201
 202          otherwise choose R3000.
 203
 204config MACH_JAZZ
 205        bool "Jazz family of machines"
 206        select FW_ARC
 207        select FW_ARC32
 208        select ARCH_MAY_HAVE_PC_FDC
 209        select CEVT_R4K
 210        select CSRC_R4K
 211        select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 212        select GENERIC_ISA_DMA
 213        select HAVE_PCSPKR_PLATFORM
 214        select IRQ_CPU
 215        select I8253
 216        select I8259
 217        select ISA
 218        select SYS_HAS_CPU_R4X00
 219        select SYS_SUPPORTS_32BIT_KERNEL
 220        select SYS_SUPPORTS_64BIT_KERNEL
 221        select SYS_SUPPORTS_100HZ
 222        help
 223         This a family of machines based on the MIPS R4030 chipset which was
 224         used by several vendors to build RISC/os and Windows NT workstations.
 225         Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
 226         Olivetti M700-10 workstations.
 227
 228config MACH_JZ4740
 229        bool "Ingenic JZ4740 based machines"
 230        select SYS_HAS_CPU_MIPS32_R1
 231        select SYS_SUPPORTS_32BIT_KERNEL
 232        select SYS_SUPPORTS_LITTLE_ENDIAN
 233        select SYS_SUPPORTS_ZBOOT_UART16550
 234        select DMA_NONCOHERENT
 235        select IRQ_CPU
 236        select ARCH_REQUIRE_GPIOLIB
 237        select SYS_HAS_EARLY_PRINTK
 238        select HAVE_CLK
 239        select GENERIC_IRQ_CHIP
 240
 241config LANTIQ
 242        bool "Lantiq based platforms"
 243        select DMA_NONCOHERENT
 244        select IRQ_CPU
 245        select CEVT_R4K
 246        select CSRC_R4K
 247        select SYS_HAS_CPU_MIPS32_R1
 248        select SYS_HAS_CPU_MIPS32_R2
 249        select SYS_SUPPORTS_BIG_ENDIAN
 250        select SYS_SUPPORTS_32BIT_KERNEL
 251        select SYS_SUPPORTS_MULTITHREADING
 252        select SYS_HAS_EARLY_PRINTK
 253        select ARCH_REQUIRE_GPIOLIB
 254        select SWAP_IO_SPACE
 255        select BOOT_RAW
 256        select HAVE_MACH_CLKDEV
 257        select CLKDEV_LOOKUP
 258        select USE_OF
 259        select PINCTRL
 260        select PINCTRL_LANTIQ
 261
 262config LASAT
 263        bool "LASAT Networks platforms"
 264        select CEVT_R4K
 265        select CSRC_R4K
 266        select DMA_NONCOHERENT
 267        select SYS_HAS_EARLY_PRINTK
 268        select HW_HAS_PCI
 269        select IRQ_CPU
 270        select PCI_GT64XXX_PCI0
 271        select MIPS_NILE4
 272        select R5000_CPU_SCACHE
 273        select SYS_HAS_CPU_R5000
 274        select SYS_SUPPORTS_32BIT_KERNEL
 275        select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
 276        select SYS_SUPPORTS_LITTLE_ENDIAN
 277
 278config MACH_LOONGSON
 279        bool "Loongson family of machines"
 280        select SYS_SUPPORTS_ZBOOT
 281        help
 282          This enables the support of Loongson family of machines.
 283
 284          Loongson is a family of general-purpose MIPS-compatible CPUs.
 285          developed at Institute of Computing Technology (ICT),
 286          Chinese Academy of Sciences (CAS) in the People's Republic
 287          of China. The chief architect is Professor Weiwu Hu.
 288
 289config MACH_LOONGSON1
 290        bool "Loongson 1 family of machines"
 291        select SYS_SUPPORTS_ZBOOT
 292        help
 293          This enables support for the Loongson 1 based machines.
 294
 295          Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
 296          the ICT (Institute of Computing Technology) and the Chinese Academy
 297          of Sciences.
 298
 299config MIPS_MALTA
 300        bool "MIPS Malta board"
 301        select ARCH_MAY_HAVE_PC_FDC
 302        select BOOT_ELF32
 303        select BOOT_RAW
 304        select CEVT_R4K
 305        select CSRC_R4K
 306        select CSRC_GIC
 307        select DMA_MAYBE_COHERENT
 308        select GENERIC_ISA_DMA
 309        select HAVE_PCSPKR_PLATFORM
 310        select IRQ_CPU
 311        select IRQ_GIC
 312        select HW_HAS_PCI
 313        select I8253
 314        select I8259
 315        select MIPS_BONITO64
 316        select MIPS_CPU_SCACHE
 317        select PCI_GT64XXX_PCI0
 318        select MIPS_MSC
 319        select SWAP_IO_SPACE
 320        select SYS_HAS_CPU_MIPS32_R1
 321        select SYS_HAS_CPU_MIPS32_R2
 322        select SYS_HAS_CPU_MIPS32_R3_5
 323        select SYS_HAS_CPU_MIPS64_R1
 324        select SYS_HAS_CPU_MIPS64_R2
 325        select SYS_HAS_CPU_NEVADA
 326        select SYS_HAS_CPU_RM7000
 327        select SYS_SUPPORTS_32BIT_KERNEL
 328        select SYS_SUPPORTS_64BIT_KERNEL
 329        select SYS_SUPPORTS_BIG_ENDIAN
 330        select SYS_SUPPORTS_LITTLE_ENDIAN
 331        select SYS_SUPPORTS_MIPS_CMP
 332        select SYS_SUPPORTS_MIPS_CPS
 333        select SYS_SUPPORTS_MULTITHREADING
 334        select SYS_SUPPORTS_SMARTMIPS
 335        select SYS_SUPPORTS_ZBOOT
 336        help
 337          This enables support for the MIPS Technologies Malta evaluation
 338          board.
 339
 340config MIPS_SEAD3
 341        bool "MIPS SEAD3 board"
 342        select BOOT_ELF32
 343        select BOOT_RAW
 344        select CEVT_R4K
 345        select CSRC_R4K
 346        select CSRC_GIC
 347        select CPU_MIPSR2_IRQ_VI
 348        select CPU_MIPSR2_IRQ_EI
 349        select DMA_NONCOHERENT
 350        select IRQ_CPU
 351        select IRQ_GIC
 352        select LIBFDT
 353        select MIPS_MSC
 354        select SYS_HAS_CPU_MIPS32_R1
 355        select SYS_HAS_CPU_MIPS32_R2
 356        select SYS_HAS_CPU_MIPS64_R1
 357        select SYS_HAS_EARLY_PRINTK
 358        select SYS_SUPPORTS_32BIT_KERNEL
 359        select SYS_SUPPORTS_64BIT_KERNEL
 360        select SYS_SUPPORTS_BIG_ENDIAN
 361        select SYS_SUPPORTS_LITTLE_ENDIAN
 362        select SYS_SUPPORTS_SMARTMIPS
 363        select SYS_SUPPORTS_MICROMIPS
 364        select USB_EHCI_BIG_ENDIAN_DESC
 365        select USB_EHCI_BIG_ENDIAN_MMIO
 366        select USE_OF
 367        help
 368          This enables support for the MIPS Technologies SEAD3 evaluation
 369          board.
 370
 371config NEC_MARKEINS
 372        bool "NEC EMMA2RH Mark-eins board"
 373        select SOC_EMMA2RH
 374        select HW_HAS_PCI
 375        help
 376          This enables support for the NEC Electronics Mark-eins boards.
 377
 378config MACH_VR41XX
 379        bool "NEC VR4100 series based machines"
 380        select CEVT_R4K
 381        select CSRC_R4K
 382        select SYS_HAS_CPU_VR41XX
 383        select ARCH_REQUIRE_GPIOLIB
 384
 385config NXP_STB220
 386        bool "NXP STB220 board"
 387        select SOC_PNX833X
 388        help
 389         Support for NXP Semiconductors STB220 Development Board.
 390
 391config NXP_STB225
 392        bool "NXP 225 board"
 393        select SOC_PNX833X
 394        select SOC_PNX8335
 395        help
 396         Support for NXP Semiconductors STB225 Development Board.
 397
 398config PMC_MSP
 399        bool "PMC-Sierra MSP chipsets"
 400        select CEVT_R4K
 401        select CSRC_R4K
 402        select DMA_NONCOHERENT
 403        select SWAP_IO_SPACE
 404        select NO_EXCEPT_FILL
 405        select BOOT_RAW
 406        select SYS_HAS_CPU_MIPS32_R1
 407        select SYS_HAS_CPU_MIPS32_R2
 408        select SYS_SUPPORTS_32BIT_KERNEL
 409        select SYS_SUPPORTS_BIG_ENDIAN
 410        select IRQ_CPU
 411        select SERIAL_8250
 412        select SERIAL_8250_CONSOLE
 413        select USB_EHCI_BIG_ENDIAN_MMIO
 414        select USB_EHCI_BIG_ENDIAN_DESC
 415        help
 416          This adds support for the PMC-Sierra family of Multi-Service
 417          Processor System-On-A-Chips.  These parts include a number
 418          of integrated peripherals, interfaces and DSPs in addition to
 419          a variety of MIPS cores.
 420
 421config RALINK
 422        bool "Ralink based machines"
 423        select CEVT_R4K
 424        select CSRC_R4K
 425        select BOOT_RAW
 426        select DMA_NONCOHERENT
 427        select IRQ_CPU
 428        select USE_OF
 429        select SYS_HAS_CPU_MIPS32_R1
 430        select SYS_HAS_CPU_MIPS32_R2
 431        select SYS_SUPPORTS_32BIT_KERNEL
 432        select SYS_SUPPORTS_LITTLE_ENDIAN
 433        select SYS_HAS_EARLY_PRINTK
 434        select HAVE_MACH_CLKDEV
 435        select CLKDEV_LOOKUP
 436        select ARCH_HAS_RESET_CONTROLLER
 437        select RESET_CONTROLLER
 438
 439config SGI_IP22
 440        bool "SGI IP22 (Indy/Indigo2)"
 441        select FW_ARC
 442        select FW_ARC32
 443        select BOOT_ELF32
 444        select CEVT_R4K
 445        select CSRC_R4K
 446        select DEFAULT_SGI_PARTITION
 447        select DMA_NONCOHERENT
 448        select HW_HAS_EISA
 449        select I8253
 450        select I8259
 451        select IP22_CPU_SCACHE
 452        select IRQ_CPU
 453        select GENERIC_ISA_DMA_SUPPORT_BROKEN
 454        select SGI_HAS_I8042
 455        select SGI_HAS_INDYDOG
 456        select SGI_HAS_HAL2
 457        select SGI_HAS_SEEQ
 458        select SGI_HAS_WD93
 459        select SGI_HAS_ZILOG
 460        select SWAP_IO_SPACE
 461        select SYS_HAS_CPU_R4X00
 462        select SYS_HAS_CPU_R5000
 463        #
 464        # Disable EARLY_PRINTK for now since it leads to overwritten prom
 465        # memory during early boot on some machines.
 466        #
 467        # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
 468        # for a more details discussion
 469        #
 470        # select SYS_HAS_EARLY_PRINTK
 471        select SYS_SUPPORTS_32BIT_KERNEL
 472        select SYS_SUPPORTS_64BIT_KERNEL
 473        select SYS_SUPPORTS_BIG_ENDIAN
 474        select MIPS_L1_CACHE_SHIFT_7
 475        help
 476          This are the SGI Indy, Challenge S and Indigo2, as well as certain
 477          OEM variants like the Tandem CMN B006S. To compile a Linux kernel
 478          that runs on these, say Y here.
 479
 480config SGI_IP27
 481        bool "SGI IP27 (Origin200/2000)"
 482        select FW_ARC
 483        select FW_ARC64
 484        select BOOT_ELF64
 485        select DEFAULT_SGI_PARTITION
 486        select DMA_COHERENT
 487        select SYS_HAS_EARLY_PRINTK
 488        select HW_HAS_PCI
 489        select NR_CPUS_DEFAULT_64
 490        select SYS_HAS_CPU_R10000
 491        select SYS_SUPPORTS_64BIT_KERNEL
 492        select SYS_SUPPORTS_BIG_ENDIAN
 493        select SYS_SUPPORTS_NUMA
 494        select SYS_SUPPORTS_SMP
 495        select MIPS_L1_CACHE_SHIFT_7
 496        help
 497          This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
 498          workstations.  To compile a Linux kernel that runs on these, say Y
 499          here.
 500
 501config SGI_IP28
 502        bool "SGI IP28 (Indigo2 R10k)"
 503        select FW_ARC
 504        select FW_ARC64
 505        select BOOT_ELF64
 506        select CEVT_R4K
 507        select CSRC_R4K
 508        select DEFAULT_SGI_PARTITION
 509        select DMA_NONCOHERENT
 510        select GENERIC_ISA_DMA_SUPPORT_BROKEN
 511        select IRQ_CPU
 512        select HW_HAS_EISA
 513        select I8253
 514        select I8259
 515        select SGI_HAS_I8042
 516        select SGI_HAS_INDYDOG
 517        select SGI_HAS_HAL2
 518        select SGI_HAS_SEEQ
 519        select SGI_HAS_WD93
 520        select SGI_HAS_ZILOG
 521        select SWAP_IO_SPACE
 522        select SYS_HAS_CPU_R10000
 523        #
 524        # Disable EARLY_PRINTK for now since it leads to overwritten prom
 525        # memory during early boot on some machines.
 526        #
 527        # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
 528        # for a more details discussion
 529        #
 530        # select SYS_HAS_EARLY_PRINTK
 531        select SYS_SUPPORTS_64BIT_KERNEL
 532        select SYS_SUPPORTS_BIG_ENDIAN
 533      help
 534        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
 535        kernel that runs on these, say Y here.
 536
 537config SGI_IP32
 538        bool "SGI IP32 (O2)"
 539        select FW_ARC
 540        select FW_ARC32
 541        select BOOT_ELF32
 542        select CEVT_R4K
 543        select CSRC_R4K
 544        select DMA_NONCOHERENT
 545        select HW_HAS_PCI
 546        select IRQ_CPU
 547        select R5000_CPU_SCACHE
 548        select RM7000_CPU_SCACHE
 549        select SYS_HAS_CPU_R5000
 550        select SYS_HAS_CPU_R10000 if BROKEN
 551        select SYS_HAS_CPU_RM7000
 552        select SYS_HAS_CPU_NEVADA
 553        select SYS_SUPPORTS_64BIT_KERNEL
 554        select SYS_SUPPORTS_BIG_ENDIAN
 555        help
 556          If you want this kernel to run on SGI O2 workstation, say Y here.
 557
 558config SIBYTE_CRHINE
 559        bool "Sibyte BCM91120C-CRhine"
 560        select BOOT_ELF32
 561        select DMA_COHERENT
 562        select SIBYTE_BCM1120
 563        select SWAP_IO_SPACE
 564        select SYS_HAS_CPU_SB1
 565        select SYS_SUPPORTS_BIG_ENDIAN
 566        select SYS_SUPPORTS_LITTLE_ENDIAN
 567
 568config SIBYTE_CARMEL
 569        bool "Sibyte BCM91120x-Carmel"
 570        select BOOT_ELF32
 571        select DMA_COHERENT
 572        select SIBYTE_BCM1120
 573        select SWAP_IO_SPACE
 574        select SYS_HAS_CPU_SB1
 575        select SYS_SUPPORTS_BIG_ENDIAN
 576        select SYS_SUPPORTS_LITTLE_ENDIAN
 577
 578config SIBYTE_CRHONE
 579        bool "Sibyte BCM91125C-CRhone"
 580        select BOOT_ELF32
 581        select DMA_COHERENT
 582        select SIBYTE_BCM1125
 583        select SWAP_IO_SPACE
 584        select SYS_HAS_CPU_SB1
 585        select SYS_SUPPORTS_BIG_ENDIAN
 586        select SYS_SUPPORTS_HIGHMEM
 587        select SYS_SUPPORTS_LITTLE_ENDIAN
 588
 589config SIBYTE_RHONE
 590        bool "Sibyte BCM91125E-Rhone"
 591        select BOOT_ELF32
 592        select DMA_COHERENT
 593        select SIBYTE_BCM1125H
 594        select SWAP_IO_SPACE
 595        select SYS_HAS_CPU_SB1
 596        select SYS_SUPPORTS_BIG_ENDIAN
 597        select SYS_SUPPORTS_LITTLE_ENDIAN
 598
 599config SIBYTE_SWARM
 600        bool "Sibyte BCM91250A-SWARM"
 601        select BOOT_ELF32
 602        select DMA_COHERENT
 603        select HAVE_PATA_PLATFORM
 604        select SIBYTE_SB1250
 605        select SWAP_IO_SPACE
 606        select SYS_HAS_CPU_SB1
 607        select SYS_SUPPORTS_BIG_ENDIAN
 608        select SYS_SUPPORTS_HIGHMEM
 609        select SYS_SUPPORTS_LITTLE_ENDIAN
 610        select ZONE_DMA32 if 64BIT
 611
 612config SIBYTE_LITTLESUR
 613        bool "Sibyte BCM91250C2-LittleSur"
 614        select BOOT_ELF32
 615        select DMA_COHERENT
 616        select HAVE_PATA_PLATFORM
 617        select SIBYTE_SB1250
 618        select SWAP_IO_SPACE
 619        select SYS_HAS_CPU_SB1
 620        select SYS_SUPPORTS_BIG_ENDIAN
 621        select SYS_SUPPORTS_HIGHMEM
 622        select SYS_SUPPORTS_LITTLE_ENDIAN
 623
 624config SIBYTE_SENTOSA
 625        bool "Sibyte BCM91250E-Sentosa"
 626        select BOOT_ELF32
 627        select DMA_COHERENT
 628        select SIBYTE_SB1250
 629        select SWAP_IO_SPACE
 630        select SYS_HAS_CPU_SB1
 631        select SYS_SUPPORTS_BIG_ENDIAN
 632        select SYS_SUPPORTS_LITTLE_ENDIAN
 633
 634config SIBYTE_BIGSUR
 635        bool "Sibyte BCM91480B-BigSur"
 636        select BOOT_ELF32
 637        select DMA_COHERENT
 638        select NR_CPUS_DEFAULT_4
 639        select SIBYTE_BCM1x80
 640        select SWAP_IO_SPACE
 641        select SYS_HAS_CPU_SB1
 642        select SYS_SUPPORTS_BIG_ENDIAN
 643        select SYS_SUPPORTS_HIGHMEM
 644        select SYS_SUPPORTS_LITTLE_ENDIAN
 645        select ZONE_DMA32 if 64BIT
 646
 647config SNI_RM
 648        bool "SNI RM200/300/400"
 649        select FW_ARC if CPU_LITTLE_ENDIAN
 650        select FW_ARC32 if CPU_LITTLE_ENDIAN
 651        select FW_SNIPROM if CPU_BIG_ENDIAN
 652        select ARCH_MAY_HAVE_PC_FDC
 653        select BOOT_ELF32
 654        select CEVT_R4K
 655        select CSRC_R4K
 656        select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
 657        select DMA_NONCOHERENT
 658        select GENERIC_ISA_DMA
 659        select HAVE_PCSPKR_PLATFORM
 660        select HW_HAS_EISA
 661        select HW_HAS_PCI
 662        select IRQ_CPU
 663        select I8253
 664        select I8259
 665        select ISA
 666        select SWAP_IO_SPACE if CPU_BIG_ENDIAN
 667        select SYS_HAS_CPU_R4X00
 668        select SYS_HAS_CPU_R5000
 669        select SYS_HAS_CPU_R10000
 670        select R5000_CPU_SCACHE
 671        select SYS_HAS_EARLY_PRINTK
 672        select SYS_SUPPORTS_32BIT_KERNEL
 673        select SYS_SUPPORTS_64BIT_KERNEL
 674        select SYS_SUPPORTS_BIG_ENDIAN
 675        select SYS_SUPPORTS_HIGHMEM
 676        select SYS_SUPPORTS_LITTLE_ENDIAN
 677        select USE_GENERIC_EARLY_PRINTK_8250
 678        help
 679          The SNI RM200/300/400 are MIPS-based machines manufactured by
 680          Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
 681          Technology and now in turn merged with Fujitsu.  Say Y here to
 682          support this machine type.
 683
 684config MACH_TX39XX
 685        bool "Toshiba TX39 series based machines"
 686
 687config MACH_TX49XX
 688        bool "Toshiba TX49 series based machines"
 689
 690config MIKROTIK_RB532
 691        bool "Mikrotik RB532 boards"
 692        select CEVT_R4K
 693        select CSRC_R4K
 694        select DMA_NONCOHERENT
 695        select HW_HAS_PCI
 696        select IRQ_CPU
 697        select SYS_HAS_CPU_MIPS32_R1
 698        select SYS_SUPPORTS_32BIT_KERNEL
 699        select SYS_SUPPORTS_LITTLE_ENDIAN
 700        select SWAP_IO_SPACE
 701        select BOOT_RAW
 702        select ARCH_REQUIRE_GPIOLIB
 703        select MIPS_L1_CACHE_SHIFT_4
 704        help
 705          Support the Mikrotik(tm) RouterBoard 532 series,
 706          based on the IDT RC32434 SoC.
 707
 708config CAVIUM_OCTEON_SOC
 709        bool "Cavium Networks Octeon SoC based boards"
 710        select CEVT_R4K
 711        select 64BIT_PHYS_ADDR
 712        select DMA_COHERENT
 713        select SYS_SUPPORTS_64BIT_KERNEL
 714        select SYS_SUPPORTS_BIG_ENDIAN
 715        select EDAC_SUPPORT
 716        select SYS_SUPPORTS_HOTPLUG_CPU
 717        select SYS_HAS_EARLY_PRINTK
 718        select SYS_HAS_CPU_CAVIUM_OCTEON
 719        select SWAP_IO_SPACE
 720        select HW_HAS_PCI
 721        select ZONE_DMA32
 722        select HOLES_IN_ZONE
 723        select ARCH_REQUIRE_GPIOLIB
 724        help
 725          This option supports all of the Octeon reference boards from Cavium
 726          Networks. It builds a kernel that dynamically determines the Octeon
 727          CPU type and supports all known board reference implementations.
 728          Some of the supported boards are:
 729                EBT3000
 730                EBH3000
 731                EBH3100
 732                Thunder
 733                Kodama
 734                Hikari
 735          Say Y here for most Octeon reference boards.
 736
 737config NLM_XLR_BOARD
 738        bool "Netlogic XLR/XLS based systems"
 739        select BOOT_ELF32
 740        select NLM_COMMON
 741        select SYS_HAS_CPU_XLR
 742        select SYS_SUPPORTS_SMP
 743        select HW_HAS_PCI
 744        select SWAP_IO_SPACE
 745        select SYS_SUPPORTS_32BIT_KERNEL
 746        select SYS_SUPPORTS_64BIT_KERNEL
 747        select 64BIT_PHYS_ADDR
 748        select SYS_SUPPORTS_BIG_ENDIAN
 749        select SYS_SUPPORTS_HIGHMEM
 750        select DMA_COHERENT
 751        select NR_CPUS_DEFAULT_32
 752        select CEVT_R4K
 753        select CSRC_R4K
 754        select IRQ_CPU
 755        select ZONE_DMA32 if 64BIT
 756        select SYNC_R4K
 757        select SYS_HAS_EARLY_PRINTK
 758        select SYS_SUPPORTS_ZBOOT
 759        select SYS_SUPPORTS_ZBOOT_UART16550
 760        help
 761          Support for systems based on Netlogic XLR and XLS processors.
 762          Say Y here if you have a XLR or XLS based board.
 763
 764config NLM_XLP_BOARD
 765        bool "Netlogic XLP based systems"
 766        select BOOT_ELF32
 767        select NLM_COMMON
 768        select SYS_HAS_CPU_XLP
 769        select SYS_SUPPORTS_SMP
 770        select HW_HAS_PCI
 771        select SYS_SUPPORTS_32BIT_KERNEL
 772        select SYS_SUPPORTS_64BIT_KERNEL
 773        select 64BIT_PHYS_ADDR
 774        select SYS_SUPPORTS_BIG_ENDIAN
 775        select SYS_SUPPORTS_LITTLE_ENDIAN
 776        select SYS_SUPPORTS_HIGHMEM
 777        select DMA_COHERENT
 778        select NR_CPUS_DEFAULT_32
 779        select CEVT_R4K
 780        select CSRC_R4K
 781        select IRQ_CPU
 782        select ZONE_DMA32 if 64BIT
 783        select SYNC_R4K
 784        select SYS_HAS_EARLY_PRINTK
 785        select USE_OF
 786        select SYS_SUPPORTS_ZBOOT
 787        select SYS_SUPPORTS_ZBOOT_UART16550
 788        help
 789          This board is based on Netlogic XLP Processor.
 790          Say Y here if you have a XLP based board.
 791
 792endchoice
 793
 794source "arch/mips/alchemy/Kconfig"
 795source "arch/mips/ath79/Kconfig"
 796source "arch/mips/bcm47xx/Kconfig"
 797source "arch/mips/bcm63xx/Kconfig"
 798source "arch/mips/jazz/Kconfig"
 799source "arch/mips/jz4740/Kconfig"
 800source "arch/mips/lantiq/Kconfig"
 801source "arch/mips/lasat/Kconfig"
 802source "arch/mips/pmcs-msp71xx/Kconfig"
 803source "arch/mips/ralink/Kconfig"
 804source "arch/mips/sgi-ip27/Kconfig"
 805source "arch/mips/sibyte/Kconfig"
 806source "arch/mips/txx9/Kconfig"
 807source "arch/mips/vr41xx/Kconfig"
 808source "arch/mips/cavium-octeon/Kconfig"
 809source "arch/mips/loongson/Kconfig"
 810source "arch/mips/loongson1/Kconfig"
 811source "arch/mips/netlogic/Kconfig"
 812
 813endmenu
 814
 815config RWSEM_GENERIC_SPINLOCK
 816        bool
 817        default y
 818
 819config RWSEM_XCHGADD_ALGORITHM
 820        bool
 821
 822config ARCH_HAS_ILOG2_U32
 823        bool
 824        default n
 825
 826config ARCH_HAS_ILOG2_U64
 827        bool
 828        default n
 829
 830config GENERIC_HWEIGHT
 831        bool
 832        default y
 833
 834config GENERIC_CALIBRATE_DELAY
 835        bool
 836        default y
 837
 838config SCHED_OMIT_FRAME_POINTER
 839        bool
 840        default y
 841
 842#
 843# Select some configuration options automatically based on user selections.
 844#
 845config FW_ARC
 846        bool
 847
 848config ARCH_MAY_HAVE_PC_FDC
 849        bool
 850
 851config BOOT_RAW
 852        bool
 853
 854config CEVT_BCM1480
 855        bool
 856
 857config CEVT_DS1287
 858        bool
 859
 860config CEVT_GT641XX
 861        bool
 862
 863config CEVT_R4K
 864        bool
 865
 866config CEVT_GIC
 867        select MIPS_CM
 868        bool
 869
 870config CEVT_SB1250
 871        bool
 872
 873config CEVT_TXX9
 874        bool
 875
 876config CSRC_BCM1480
 877        bool
 878
 879config CSRC_IOASIC
 880        bool
 881
 882config CSRC_R4K
 883        bool
 884
 885config CSRC_GIC
 886        select MIPS_CM
 887        bool
 888
 889config CSRC_SB1250
 890        bool
 891
 892config GPIO_TXX9
 893        select ARCH_REQUIRE_GPIOLIB
 894        bool
 895
 896config FW_CFE
 897        bool
 898
 899config ARCH_DMA_ADDR_T_64BIT
 900        def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT
 901
 902config DMA_MAYBE_COHERENT
 903        select DMA_NONCOHERENT
 904        bool
 905
 906config DMA_COHERENT
 907        bool
 908
 909config DMA_NONCOHERENT
 910        bool
 911        select NEED_DMA_MAP_STATE
 912
 913config NEED_DMA_MAP_STATE
 914        bool
 915
 916config SYS_HAS_EARLY_PRINTK
 917        bool
 918
 919config HOTPLUG_CPU
 920        bool "Support for hot-pluggable CPUs"
 921        depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
 922        help
 923          Say Y here to allow turning CPUs off and on. CPUs can be
 924          controlled through /sys/devices/system/cpu.
 925          (Note: power management support will enable this option
 926            automatically on SMP systems. )
 927          Say N if you want to disable CPU hotplug.
 928
 929config SYS_SUPPORTS_HOTPLUG_CPU
 930        bool
 931
 932config I8259
 933        bool
 934
 935config MIPS_BONITO64
 936        bool
 937
 938config MIPS_MSC
 939        bool
 940
 941config MIPS_NILE4
 942        bool
 943
 944config SYNC_R4K
 945        bool
 946
 947config MIPS_MACHINE
 948        def_bool n
 949
 950config NO_IOPORT_MAP
 951        def_bool n
 952
 953config GENERIC_ISA_DMA
 954        bool
 955        select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
 956        select ISA_DMA_API
 957
 958config GENERIC_ISA_DMA_SUPPORT_BROKEN
 959        bool
 960        select GENERIC_ISA_DMA
 961
 962config ISA_DMA_API
 963        bool
 964
 965config HOLES_IN_ZONE
 966        bool
 967
 968#
 969# Endianness selection.  Sufficiently obscure so many users don't know what to
 970# answer,so we try hard to limit the available choices.  Also the use of a
 971# choice statement should be more obvious to the user.
 972#
 973choice
 974        prompt "Endianness selection"
 975        help
 976          Some MIPS machines can be configured for either little or big endian
 977          byte order. These modes require different kernels and a different
 978          Linux distribution.  In general there is one preferred byteorder for a
 979          particular system but some systems are just as commonly used in the
 980          one or the other endianness.
 981
 982config CPU_BIG_ENDIAN
 983        bool "Big endian"
 984        depends on SYS_SUPPORTS_BIG_ENDIAN
 985
 986config CPU_LITTLE_ENDIAN
 987        bool "Little endian"
 988        depends on SYS_SUPPORTS_LITTLE_ENDIAN
 989
 990endchoice
 991
 992config EXPORT_UASM
 993        bool
 994
 995config SYS_SUPPORTS_APM_EMULATION
 996        bool
 997
 998config SYS_SUPPORTS_BIG_ENDIAN
 999        bool
1000
1001config SYS_SUPPORTS_LITTLE_ENDIAN
1002        bool
1003
1004config SYS_SUPPORTS_HUGETLBFS
1005        bool
1006        depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
1007        default y
1008
1009config MIPS_HUGE_TLB_SUPPORT
1010        def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1011
1012config IRQ_CPU
1013        bool
1014
1015config IRQ_CPU_RM7K
1016        bool
1017
1018config IRQ_MSP_SLP
1019        bool
1020
1021config IRQ_MSP_CIC
1022        bool
1023
1024config IRQ_TXX9
1025        bool
1026
1027config IRQ_GT641XX
1028        bool
1029
1030config IRQ_GIC
1031        select MIPS_CM
1032        bool
1033
1034config PCI_GT64XXX_PCI0
1035        bool
1036
1037config NO_EXCEPT_FILL
1038        bool
1039
1040config SOC_EMMA2RH
1041        bool
1042        select CEVT_R4K
1043        select CSRC_R4K
1044        select DMA_NONCOHERENT
1045        select IRQ_CPU
1046        select SWAP_IO_SPACE
1047        select SYS_HAS_CPU_R5500
1048        select SYS_SUPPORTS_32BIT_KERNEL
1049        select SYS_SUPPORTS_64BIT_KERNEL
1050        select SYS_SUPPORTS_BIG_ENDIAN
1051
1052config SOC_PNX833X
1053        bool
1054        select CEVT_R4K
1055        select CSRC_R4K
1056        select IRQ_CPU
1057        select DMA_NONCOHERENT
1058        select SYS_HAS_CPU_MIPS32_R2
1059        select SYS_SUPPORTS_32BIT_KERNEL
1060        select SYS_SUPPORTS_LITTLE_ENDIAN
1061        select SYS_SUPPORTS_BIG_ENDIAN
1062        select CPU_MIPSR2_IRQ_VI
1063
1064config SOC_PNX8335
1065        bool
1066        select SOC_PNX833X
1067
1068config SWAP_IO_SPACE
1069        bool
1070
1071config SGI_HAS_INDYDOG
1072        bool
1073
1074config SGI_HAS_HAL2
1075        bool
1076
1077config SGI_HAS_SEEQ
1078        bool
1079
1080config SGI_HAS_WD93
1081        bool
1082
1083config SGI_HAS_ZILOG
1084        bool
1085
1086config SGI_HAS_I8042
1087        bool
1088
1089config DEFAULT_SGI_PARTITION
1090        bool
1091
1092config FW_ARC32
1093        bool
1094
1095config FW_SNIPROM
1096        bool
1097
1098config BOOT_ELF32
1099        bool
1100
1101config MIPS_L1_CACHE_SHIFT_4
1102        bool
1103
1104config MIPS_L1_CACHE_SHIFT_5
1105        bool
1106
1107config MIPS_L1_CACHE_SHIFT_6
1108        bool
1109
1110config MIPS_L1_CACHE_SHIFT_7
1111        bool
1112
1113config MIPS_L1_CACHE_SHIFT
1114        int
1115        default "4" if MIPS_L1_CACHE_SHIFT_4
1116        default "5" if MIPS_L1_CACHE_SHIFT_5
1117        default "6" if MIPS_L1_CACHE_SHIFT_6
1118        default "7" if MIPS_L1_CACHE_SHIFT_7
1119        default "5"
1120
1121config HAVE_STD_PC_SERIAL_PORT
1122        bool
1123
1124config ARC_CONSOLE
1125        bool "ARC console support"
1126        depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1127
1128config ARC_MEMORY
1129        bool
1130        depends on MACH_JAZZ || SNI_RM || SGI_IP32
1131        default y
1132
1133config ARC_PROMLIB
1134        bool
1135        depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
1136        default y
1137
1138config FW_ARC64
1139        bool
1140
1141config BOOT_ELF64
1142        bool
1143
1144menu "CPU selection"
1145
1146choice
1147        prompt "CPU type"
1148        default CPU_R4X00
1149
1150config CPU_LOONGSON3
1151        bool "Loongson 3 CPU"
1152        depends on SYS_HAS_CPU_LOONGSON3
1153        select CPU_SUPPORTS_64BIT_KERNEL
1154        select CPU_SUPPORTS_HIGHMEM
1155        select CPU_SUPPORTS_HUGEPAGES
1156        select WEAK_ORDERING
1157        select WEAK_REORDERING_BEYOND_LLSC
1158        help
1159                The Loongson 3 processor implements the MIPS64R2 instruction
1160                set with many extensions.
1161
1162config CPU_LOONGSON2E
1163        bool "Loongson 2E"
1164        depends on SYS_HAS_CPU_LOONGSON2E
1165        select CPU_LOONGSON2
1166        help
1167          The Loongson 2E processor implements the MIPS III instruction set
1168          with many extensions.
1169
1170          It has an internal FPGA northbridge, which is compatible to
1171          bonito64.
1172
1173config CPU_LOONGSON2F
1174        bool "Loongson 2F"
1175        depends on SYS_HAS_CPU_LOONGSON2F
1176        select CPU_LOONGSON2
1177        select ARCH_REQUIRE_GPIOLIB
1178        help
1179          The Loongson 2F processor implements the MIPS III instruction set
1180          with many extensions.
1181
1182          Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1183          have a similar programming interface with FPGA northbridge used in
1184          Loongson2E.
1185
1186config CPU_LOONGSON1B
1187        bool "Loongson 1B"
1188        depends on SYS_HAS_CPU_LOONGSON1B
1189        select CPU_LOONGSON1
1190        help
1191          The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1192          release 2 instruction set.
1193
1194config CPU_MIPS32_R1
1195        bool "MIPS32 Release 1"
1196        depends on SYS_HAS_CPU_MIPS32_R1
1197        select CPU_HAS_PREFETCH
1198        select CPU_SUPPORTS_32BIT_KERNEL
1199        select CPU_SUPPORTS_HIGHMEM
1200        help
1201          Choose this option to build a kernel for release 1 or later of the
1202          MIPS32 architecture.  Most modern embedded systems with a 32-bit
1203          MIPS processor are based on a MIPS32 processor.  If you know the
1204          specific type of processor in your system, choose those that one
1205          otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1206          Release 2 of the MIPS32 architecture is available since several
1207          years so chances are you even have a MIPS32 Release 2 processor
1208          in which case you should choose CPU_MIPS32_R2 instead for better
1209          performance.
1210
1211config CPU_MIPS32_R2
1212        bool "MIPS32 Release 2"
1213        depends on SYS_HAS_CPU_MIPS32_R2
1214        select CPU_HAS_PREFETCH
1215        select CPU_SUPPORTS_32BIT_KERNEL
1216        select CPU_SUPPORTS_HIGHMEM
1217        select CPU_SUPPORTS_MSA
1218        select HAVE_KVM
1219        help
1220          Choose this option to build a kernel for release 2 or later of the
1221          MIPS32 architecture.  Most modern embedded systems with a 32-bit
1222          MIPS processor are based on a MIPS32 processor.  If you know the
1223          specific type of processor in your system, choose those that one
1224          otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1225
1226config CPU_MIPS64_R1
1227        bool "MIPS64 Release 1"
1228        depends on SYS_HAS_CPU_MIPS64_R1
1229        select CPU_HAS_PREFETCH
1230        select CPU_SUPPORTS_32BIT_KERNEL
1231        select CPU_SUPPORTS_64BIT_KERNEL
1232        select CPU_SUPPORTS_HIGHMEM
1233        select CPU_SUPPORTS_HUGEPAGES
1234        help
1235          Choose this option to build a kernel for release 1 or later of the
1236          MIPS64 architecture.  Many modern embedded systems with a 64-bit
1237          MIPS processor are based on a MIPS64 processor.  If you know the
1238          specific type of processor in your system, choose those that one
1239          otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1240          Release 2 of the MIPS64 architecture is available since several
1241          years so chances are you even have a MIPS64 Release 2 processor
1242          in which case you should choose CPU_MIPS64_R2 instead for better
1243          performance.
1244
1245config CPU_MIPS64_R2
1246        bool "MIPS64 Release 2"
1247        depends on SYS_HAS_CPU_MIPS64_R2
1248        select CPU_HAS_PREFETCH
1249        select CPU_SUPPORTS_32BIT_KERNEL
1250        select CPU_SUPPORTS_64BIT_KERNEL
1251        select CPU_SUPPORTS_HIGHMEM
1252        select CPU_SUPPORTS_HUGEPAGES
1253        select CPU_SUPPORTS_MSA
1254        help
1255          Choose this option to build a kernel for release 2 or later of the
1256          MIPS64 architecture.  Many modern embedded systems with a 64-bit
1257          MIPS processor are based on a MIPS64 processor.  If you know the
1258          specific type of processor in your system, choose those that one
1259          otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1260
1261config CPU_R3000
1262        bool "R3000"
1263        depends on SYS_HAS_CPU_R3000
1264        select CPU_HAS_WB
1265        select CPU_SUPPORTS_32BIT_KERNEL
1266        select CPU_SUPPORTS_HIGHMEM
1267        help
1268          Please make sure to pick the right CPU type. Linux/MIPS is not
1269          designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1270          *not* work on R4000 machines and vice versa.  However, since most
1271          of the supported machines have an R4000 (or similar) CPU, R4x00
1272          might be a safe bet.  If the resulting kernel does not work,
1273          try to recompile with R3000.
1274
1275config CPU_TX39XX
1276        bool "R39XX"
1277        depends on SYS_HAS_CPU_TX39XX
1278        select CPU_SUPPORTS_32BIT_KERNEL
1279
1280config CPU_VR41XX
1281        bool "R41xx"
1282        depends on SYS_HAS_CPU_VR41XX
1283        select CPU_SUPPORTS_32BIT_KERNEL
1284        select CPU_SUPPORTS_64BIT_KERNEL
1285        help
1286          The options selects support for the NEC VR4100 series of processors.
1287          Only choose this option if you have one of these processors as a
1288          kernel built with this option will not run on any other type of
1289          processor or vice versa.
1290
1291config CPU_R4300
1292        bool "R4300"
1293        depends on SYS_HAS_CPU_R4300
1294        select CPU_SUPPORTS_32BIT_KERNEL
1295        select CPU_SUPPORTS_64BIT_KERNEL
1296        help
1297          MIPS Technologies R4300-series processors.
1298
1299config CPU_R4X00
1300        bool "R4x00"
1301        depends on SYS_HAS_CPU_R4X00
1302        select CPU_SUPPORTS_32BIT_KERNEL
1303        select CPU_SUPPORTS_64BIT_KERNEL
1304        select CPU_SUPPORTS_HUGEPAGES
1305        help
1306          MIPS Technologies R4000-series processors other than 4300, including
1307          the R4000, R4400, R4600, and 4700.
1308
1309config CPU_TX49XX
1310        bool "R49XX"
1311        depends on SYS_HAS_CPU_TX49XX
1312        select CPU_HAS_PREFETCH
1313        select CPU_SUPPORTS_32BIT_KERNEL
1314        select CPU_SUPPORTS_64BIT_KERNEL
1315        select CPU_SUPPORTS_HUGEPAGES
1316
1317config CPU_R5000
1318        bool "R5000"
1319        depends on SYS_HAS_CPU_R5000
1320        select CPU_SUPPORTS_32BIT_KERNEL
1321        select CPU_SUPPORTS_64BIT_KERNEL
1322        select CPU_SUPPORTS_HUGEPAGES
1323        help
1324          MIPS Technologies R5000-series processors other than the Nevada.
1325
1326config CPU_R5432
1327        bool "R5432"
1328        depends on SYS_HAS_CPU_R5432
1329        select CPU_SUPPORTS_32BIT_KERNEL
1330        select CPU_SUPPORTS_64BIT_KERNEL
1331        select CPU_SUPPORTS_HUGEPAGES
1332
1333config CPU_R5500
1334        bool "R5500"
1335        depends on SYS_HAS_CPU_R5500
1336        select CPU_SUPPORTS_32BIT_KERNEL
1337        select CPU_SUPPORTS_64BIT_KERNEL
1338        select CPU_SUPPORTS_HUGEPAGES
1339        help
1340          NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1341          instruction set.
1342
1343config CPU_R6000
1344        bool "R6000"
1345        depends on SYS_HAS_CPU_R6000
1346        select CPU_SUPPORTS_32BIT_KERNEL
1347        help
1348          MIPS Technologies R6000 and R6000A series processors.  Note these
1349          processors are extremely rare and the support for them is incomplete.
1350
1351config CPU_NEVADA
1352        bool "RM52xx"
1353        depends on SYS_HAS_CPU_NEVADA
1354        select CPU_SUPPORTS_32BIT_KERNEL
1355        select CPU_SUPPORTS_64BIT_KERNEL
1356        select CPU_SUPPORTS_HUGEPAGES
1357        help
1358          QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1359
1360config CPU_R8000
1361        bool "R8000"
1362        depends on SYS_HAS_CPU_R8000
1363        select CPU_HAS_PREFETCH
1364        select CPU_SUPPORTS_64BIT_KERNEL
1365        help
1366          MIPS Technologies R8000 processors.  Note these processors are
1367          uncommon and the support for them is incomplete.
1368
1369config CPU_R10000
1370        bool "R10000"
1371        depends on SYS_HAS_CPU_R10000
1372        select CPU_HAS_PREFETCH
1373        select CPU_SUPPORTS_32BIT_KERNEL
1374        select CPU_SUPPORTS_64BIT_KERNEL
1375        select CPU_SUPPORTS_HIGHMEM
1376        select CPU_SUPPORTS_HUGEPAGES
1377        help
1378          MIPS Technologies R10000-series processors.
1379
1380config CPU_RM7000
1381        bool "RM7000"
1382        depends on SYS_HAS_CPU_RM7000
1383        select CPU_HAS_PREFETCH
1384        select CPU_SUPPORTS_32BIT_KERNEL
1385        select CPU_SUPPORTS_64BIT_KERNEL
1386        select CPU_SUPPORTS_HIGHMEM
1387        select CPU_SUPPORTS_HUGEPAGES
1388
1389config CPU_SB1
1390        bool "SB1"
1391        depends on SYS_HAS_CPU_SB1
1392        select CPU_SUPPORTS_32BIT_KERNEL
1393        select CPU_SUPPORTS_64BIT_KERNEL
1394        select CPU_SUPPORTS_HIGHMEM
1395        select CPU_SUPPORTS_HUGEPAGES
1396        select WEAK_ORDERING
1397
1398config CPU_CAVIUM_OCTEON
1399        bool "Cavium Octeon processor"
1400        depends on SYS_HAS_CPU_CAVIUM_OCTEON
1401        select ARCH_SPARSEMEM_ENABLE
1402        select CPU_HAS_PREFETCH
1403        select CPU_SUPPORTS_64BIT_KERNEL
1404        select SYS_SUPPORTS_SMP
1405        select NR_CPUS_DEFAULT_16
1406        select WEAK_ORDERING
1407        select CPU_SUPPORTS_HIGHMEM
1408        select CPU_SUPPORTS_HUGEPAGES
1409        select LIBFDT
1410        select USE_OF
1411        select USB_EHCI_BIG_ENDIAN_MMIO
1412        select MIPS_L1_CACHE_SHIFT_7
1413        help
1414          The Cavium Octeon processor is a highly integrated chip containing
1415          many ethernet hardware widgets for networking tasks. The processor
1416          can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1417          Full details can be found at http://www.caviumnetworks.com.
1418
1419config CPU_BMIPS
1420        bool "Broadcom BMIPS"
1421        depends on SYS_HAS_CPU_BMIPS
1422        select CPU_MIPS32
1423        select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1424        select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1425        select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1426        select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1427        select CPU_SUPPORTS_32BIT_KERNEL
1428        select DMA_NONCOHERENT
1429        select IRQ_CPU
1430        select SWAP_IO_SPACE
1431        select WEAK_ORDERING
1432        select CPU_SUPPORTS_HIGHMEM
1433        select CPU_HAS_PREFETCH
1434        help
1435          Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1436
1437config CPU_XLR
1438        bool "Netlogic XLR SoC"
1439        depends on SYS_HAS_CPU_XLR
1440        select CPU_SUPPORTS_32BIT_KERNEL
1441        select CPU_SUPPORTS_64BIT_KERNEL
1442        select CPU_SUPPORTS_HIGHMEM
1443        select CPU_SUPPORTS_HUGEPAGES
1444        select WEAK_ORDERING
1445        select WEAK_REORDERING_BEYOND_LLSC
1446        help
1447          Netlogic Microsystems XLR/XLS processors.
1448
1449config CPU_XLP
1450        bool "Netlogic XLP SoC"
1451        depends on SYS_HAS_CPU_XLP
1452        select CPU_SUPPORTS_32BIT_KERNEL
1453        select CPU_SUPPORTS_64BIT_KERNEL
1454        select CPU_SUPPORTS_HIGHMEM
1455        select WEAK_ORDERING
1456        select WEAK_REORDERING_BEYOND_LLSC
1457        select CPU_HAS_PREFETCH
1458        select CPU_MIPSR2
1459        help
1460          Netlogic Microsystems XLP processors.
1461endchoice
1462
1463config CPU_MIPS32_3_5_FEATURES
1464        bool "MIPS32 Release 3.5 Features"
1465        depends on SYS_HAS_CPU_MIPS32_R3_5
1466        depends on CPU_MIPS32_R2
1467        help
1468          Choose this option to build a kernel for release 2 or later of the
1469          MIPS32 architecture including features from the 3.5 release such as
1470          support for Enhanced Virtual Addressing (EVA).
1471
1472config CPU_MIPS32_3_5_EVA
1473        bool "Enhanced Virtual Addressing (EVA)"
1474        depends on CPU_MIPS32_3_5_FEATURES
1475        select EVA
1476        default y
1477        help
1478          Choose this option if you want to enable the Enhanced Virtual
1479          Addressing (EVA) on your MIPS32 core (such as proAptiv).
1480          One of its primary benefits is an increase in the maximum size
1481          of lowmem (up to 3GB). If unsure, say 'N' here.
1482
1483if CPU_LOONGSON2F
1484config CPU_NOP_WORKAROUNDS
1485        bool
1486
1487config CPU_JUMP_WORKAROUNDS
1488        bool
1489
1490config CPU_LOONGSON2F_WORKAROUNDS
1491        bool "Loongson 2F Workarounds"
1492        default y
1493        select CPU_NOP_WORKAROUNDS
1494        select CPU_JUMP_WORKAROUNDS
1495        help
1496          Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1497          require workarounds.  Without workarounds the system may hang
1498          unexpectedly.  For more information please refer to the gas
1499          -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1500
1501          Loongson 2F03 and later have fixed these issues and no workarounds
1502          are needed.  The workarounds have no significant side effect on them
1503          but may decrease the performance of the system so this option should
1504          be disabled unless the kernel is intended to be run on 2F01 or 2F02
1505          systems.
1506
1507          If unsure, please say Y.
1508endif # CPU_LOONGSON2F
1509
1510config SYS_SUPPORTS_ZBOOT
1511        bool
1512        select HAVE_KERNEL_GZIP
1513        select HAVE_KERNEL_BZIP2
1514        select HAVE_KERNEL_LZ4
1515        select HAVE_KERNEL_LZMA
1516        select HAVE_KERNEL_LZO
1517        select HAVE_KERNEL_XZ
1518
1519config SYS_SUPPORTS_ZBOOT_UART16550
1520        bool
1521        select SYS_SUPPORTS_ZBOOT
1522
1523config CPU_LOONGSON2
1524        bool
1525        select CPU_SUPPORTS_32BIT_KERNEL
1526        select CPU_SUPPORTS_64BIT_KERNEL
1527        select CPU_SUPPORTS_HIGHMEM
1528        select CPU_SUPPORTS_HUGEPAGES
1529
1530config CPU_LOONGSON1
1531        bool
1532        select CPU_MIPS32
1533        select CPU_MIPSR2
1534        select CPU_HAS_PREFETCH
1535        select CPU_SUPPORTS_32BIT_KERNEL
1536        select CPU_SUPPORTS_HIGHMEM
1537
1538config CPU_BMIPS32_3300
1539        select SMP_UP if SMP
1540        bool
1541
1542config CPU_BMIPS4350
1543        bool
1544        select SYS_SUPPORTS_SMP
1545        select SYS_SUPPORTS_HOTPLUG_CPU
1546
1547config CPU_BMIPS4380
1548        bool
1549        select SYS_SUPPORTS_SMP
1550        select SYS_SUPPORTS_HOTPLUG_CPU
1551
1552config CPU_BMIPS5000
1553        bool
1554        select MIPS_CPU_SCACHE
1555        select SYS_SUPPORTS_SMP
1556        select SYS_SUPPORTS_HOTPLUG_CPU
1557
1558config SYS_HAS_CPU_LOONGSON3
1559        bool
1560        select CPU_SUPPORTS_CPUFREQ
1561
1562config SYS_HAS_CPU_LOONGSON2E
1563        bool
1564
1565config SYS_HAS_CPU_LOONGSON2F
1566        bool
1567        select CPU_SUPPORTS_CPUFREQ
1568        select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1569        select CPU_SUPPORTS_UNCACHED_ACCELERATED
1570
1571config SYS_HAS_CPU_LOONGSON1B
1572        bool
1573
1574config SYS_HAS_CPU_MIPS32_R1
1575        bool
1576
1577config SYS_HAS_CPU_MIPS32_R2
1578        bool
1579
1580config SYS_HAS_CPU_MIPS32_R3_5
1581        bool
1582
1583config SYS_HAS_CPU_MIPS64_R1
1584        bool
1585
1586config SYS_HAS_CPU_MIPS64_R2
1587        bool
1588
1589config SYS_HAS_CPU_R3000
1590        bool
1591
1592config SYS_HAS_CPU_TX39XX
1593        bool
1594
1595config SYS_HAS_CPU_VR41XX
1596        bool
1597
1598config SYS_HAS_CPU_R4300
1599        bool
1600
1601config SYS_HAS_CPU_R4X00
1602        bool
1603
1604config SYS_HAS_CPU_TX49XX
1605        bool
1606
1607config SYS_HAS_CPU_R5000
1608        bool
1609
1610config SYS_HAS_CPU_R5432
1611        bool
1612
1613config SYS_HAS_CPU_R5500
1614        bool
1615
1616config SYS_HAS_CPU_R6000
1617        bool
1618
1619config SYS_HAS_CPU_NEVADA
1620        bool
1621
1622config SYS_HAS_CPU_R8000
1623        bool
1624
1625config SYS_HAS_CPU_R10000
1626        bool
1627
1628config SYS_HAS_CPU_RM7000
1629        bool
1630
1631config SYS_HAS_CPU_SB1
1632        bool
1633
1634config SYS_HAS_CPU_CAVIUM_OCTEON
1635        bool
1636
1637config SYS_HAS_CPU_BMIPS
1638        bool
1639
1640config SYS_HAS_CPU_BMIPS32_3300
1641        bool
1642        select SYS_HAS_CPU_BMIPS
1643
1644config SYS_HAS_CPU_BMIPS4350
1645        bool
1646        select SYS_HAS_CPU_BMIPS
1647
1648config SYS_HAS_CPU_BMIPS4380
1649        bool
1650        select SYS_HAS_CPU_BMIPS
1651
1652config SYS_HAS_CPU_BMIPS5000
1653        bool
1654        select SYS_HAS_CPU_BMIPS
1655
1656config SYS_HAS_CPU_XLR
1657        bool
1658
1659config SYS_HAS_CPU_XLP
1660        bool
1661
1662#
1663# CPU may reorder R->R, R->W, W->R, W->W
1664# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1665#
1666config WEAK_ORDERING
1667        bool
1668
1669#
1670# CPU may reorder reads and writes beyond LL/SC
1671# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1672#
1673config WEAK_REORDERING_BEYOND_LLSC
1674        bool
1675endmenu
1676
1677#
1678# These two indicate any level of the MIPS32 and MIPS64 architecture
1679#
1680config CPU_MIPS32
1681        bool
1682        default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
1683
1684config CPU_MIPS64
1685        bool
1686        default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
1687
1688#
1689# These two indicate the revision of the architecture, either Release 1 or Release 2
1690#
1691config CPU_MIPSR1
1692        bool
1693        default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
1694
1695config CPU_MIPSR2
1696        bool
1697        default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1698
1699config EVA
1700        bool
1701
1702config SYS_SUPPORTS_32BIT_KERNEL
1703        bool
1704config SYS_SUPPORTS_64BIT_KERNEL
1705        bool
1706config CPU_SUPPORTS_32BIT_KERNEL
1707        bool
1708config CPU_SUPPORTS_64BIT_KERNEL
1709        bool
1710config CPU_SUPPORTS_CPUFREQ
1711        bool
1712config CPU_SUPPORTS_ADDRWINCFG
1713        bool
1714config CPU_SUPPORTS_HUGEPAGES
1715        bool
1716config CPU_SUPPORTS_UNCACHED_ACCELERATED
1717        bool
1718config MIPS_PGD_C0_CONTEXT
1719        bool
1720        default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1721
1722#
1723# Set to y for ptrace access to watch registers.
1724#
1725config HARDWARE_WATCHPOINTS
1726       bool
1727       default y if CPU_MIPSR1 || CPU_MIPSR2
1728
1729menu "Kernel type"
1730
1731choice
1732        prompt "Kernel code model"
1733        help
1734          You should only select this option if you have a workload that
1735          actually benefits from 64-bit processing or if your machine has
1736          large memory.  You will only be presented a single option in this
1737          menu if your system does not support both 32-bit and 64-bit kernels.
1738
1739config 32BIT
1740        bool "32-bit kernel"
1741        depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
1742        select TRAD_SIGNALS
1743        help
1744          Select this option if you want to build a 32-bit kernel.
1745config 64BIT
1746        bool "64-bit kernel"
1747        depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
1748        help
1749          Select this option if you want to build a 64-bit kernel.
1750
1751endchoice
1752
1753config KVM_GUEST
1754        bool "KVM Guest Kernel"
1755        depends on BROKEN_ON_SMP
1756        help
1757          Select this option if building a guest kernel for KVM (Trap & Emulate) mode
1758
1759config KVM_HOST_FREQ
1760        int "KVM Host Processor Frequency (MHz)"
1761        depends on KVM_GUEST
1762        default 500
1763        help
1764          Select this option if building a guest kernel for KVM to skip
1765          RTC emulation when determining guest CPU Frequency.  Instead, the guest
1766          processor frequency is automatically derived from the host frequency.
1767
1768choice
1769        prompt "Kernel page size"
1770        default PAGE_SIZE_4KB
1771
1772config PAGE_SIZE_4KB
1773        bool "4kB"
1774        depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
1775        help
1776         This option select the standard 4kB Linux page size.  On some
1777         R3000-family processors this is the only available page size.  Using
1778         4kB page size will minimize memory consumption and is therefore
1779         recommended for low memory systems.
1780
1781config PAGE_SIZE_8KB
1782        bool "8kB"
1783        depends on CPU_R8000 || CPU_CAVIUM_OCTEON
1784        help
1785          Using 8kB page size will result in higher performance kernel at
1786          the price of higher memory consumption.  This option is available
1787          only on R8000 and cnMIPS processors.  Note that you will need a
1788          suitable Linux distribution to support this.
1789
1790config PAGE_SIZE_16KB
1791        bool "16kB"
1792        depends on !CPU_R3000 && !CPU_TX39XX
1793        help
1794          Using 16kB page size will result in higher performance kernel at
1795          the price of higher memory consumption.  This option is available on
1796          all non-R3000 family processors.  Note that you will need a suitable
1797          Linux distribution to support this.
1798
1799config PAGE_SIZE_32KB
1800        bool "32kB"
1801        depends on CPU_CAVIUM_OCTEON
1802        help
1803          Using 32kB page size will result in higher performance kernel at
1804          the price of higher memory consumption.  This option is available
1805          only on cnMIPS cores.  Note that you will need a suitable Linux
1806          distribution to support this.
1807
1808config PAGE_SIZE_64KB
1809        bool "64kB"
1810        depends on !CPU_R3000 && !CPU_TX39XX
1811        help
1812          Using 64kB page size will result in higher performance kernel at
1813          the price of higher memory consumption.  This option is available on
1814          all non-R3000 family processor.  Not that at the time of this
1815          writing this option is still high experimental.
1816
1817endchoice
1818
1819config FORCE_MAX_ZONEORDER
1820        int "Maximum zone order"
1821        range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1822        default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
1823        range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1824        default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
1825        range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1826        default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
1827        range 11 64
1828        default "11"
1829        help
1830          The kernel memory allocator divides physically contiguous memory
1831          blocks into "zones", where each zone is a power of two number of
1832          pages.  This option selects the largest power of two that the kernel
1833          keeps in the memory allocator.  If you need to allocate very large
1834          blocks of physically contiguous memory, then you may need to
1835          increase this value.
1836
1837          This config option is actually maximum order plus one. For example,
1838          a value of 11 means that the largest free memory block is 2^10 pages.
1839
1840          The page size is not necessarily 4KB.  Keep this in mind
1841          when choosing a value for this option.
1842
1843config CEVT_GIC
1844        bool "Use GIC global counter for clock events"
1845        depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
1846        help
1847          Use the GIC global counter for the clock events. The R4K clock
1848          event driver is always present, so if the platform ends up not
1849          detecting a GIC, it will fall back to the R4K timer for the
1850          generation of clock events.
1851
1852config BOARD_SCACHE
1853        bool
1854
1855config IP22_CPU_SCACHE
1856        bool
1857        select BOARD_SCACHE
1858
1859#
1860# Support for a MIPS32 / MIPS64 style S-caches
1861#
1862config MIPS_CPU_SCACHE
1863        bool
1864        select BOARD_SCACHE
1865        select MIPS_L1_CACHE_SHIFT_6
1866
1867config R5000_CPU_SCACHE
1868        bool
1869        select BOARD_SCACHE
1870
1871config RM7000_CPU_SCACHE
1872        bool
1873        select BOARD_SCACHE
1874
1875config SIBYTE_DMA_PAGEOPS
1876        bool "Use DMA to clear/copy pages"
1877        depends on CPU_SB1
1878        help
1879          Instead of using the CPU to zero and copy pages, use a Data Mover
1880          channel.  These DMA channels are otherwise unused by the standard
1881          SiByte Linux port.  Seems to give a small performance benefit.
1882
1883config CPU_HAS_PREFETCH
1884        bool
1885
1886config CPU_GENERIC_DUMP_TLB
1887        bool
1888        default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
1889
1890config CPU_R4K_FPU
1891        bool
1892        default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1893
1894config CPU_R4K_CACHE_TLB
1895        bool
1896        default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
1897
1898choice
1899        prompt "MIPS MT options"
1900
1901config MIPS_MT_DISABLED
1902        bool "Disable multithreading support"
1903        help
1904          Use this option if your platform does not support the MT ASE
1905          which is hardware multithreading support. On systems without
1906          an MT-enabled processor, this will be the only option that is
1907          available in this menu.
1908
1909config MIPS_MT_SMP
1910        bool "Use 1 TC on each available VPE for SMP"
1911        depends on SYS_SUPPORTS_MULTITHREADING
1912        select CPU_MIPSR2_IRQ_VI
1913        select CPU_MIPSR2_IRQ_EI
1914        select SYNC_R4K
1915        select MIPS_GIC_IPI
1916        select MIPS_MT
1917        select SMP
1918        select SMP_UP
1919        select SYS_SUPPORTS_SMP
1920        select SYS_SUPPORTS_SCHED_SMT
1921        select MIPS_PERF_SHARED_TC_COUNTERS
1922        help
1923          This is a kernel model which is known as SMVP. This is supported
1924          on cores with the MT ASE and uses the available VPEs to implement
1925          virtual processors which supports SMP. This is equivalent to the
1926          Intel Hyperthreading feature. For further information go to
1927          <http://www.imgtec.com/mips/mips-multithreading.asp>.
1928
1929config MIPS_MT_SMTC
1930        bool "Use all TCs on all VPEs for SMP (DEPRECATED)"
1931        depends on CPU_MIPS32_R2
1932        depends on SYS_SUPPORTS_MULTITHREADING
1933        depends on !MIPS_CPS
1934        select CPU_MIPSR2_IRQ_VI
1935        select CPU_MIPSR2_IRQ_EI
1936        select MIPS_MT
1937        select SMP
1938        select SMP_UP
1939        select SYS_SUPPORTS_SMP
1940        select NR_CPUS_DEFAULT_8
1941        help
1942          This is a kernel model which is known as SMTC. This is
1943          supported on cores with the MT ASE and presents all TCs
1944          available on all VPEs to support SMP. For further
1945          information see <http://www.linux-mips.org/wiki/34K#SMTC>.
1946
1947endchoice
1948
1949config MIPS_MT
1950        bool
1951
1952config SCHED_SMT
1953        bool "SMT (multithreading) scheduler support"
1954        depends on SYS_SUPPORTS_SCHED_SMT
1955        default n
1956        help
1957          SMT scheduler support improves the CPU scheduler's decision making
1958          when dealing with MIPS MT enabled cores at a cost of slightly
1959          increased overhead in some places. If unsure say N here.
1960
1961config SYS_SUPPORTS_SCHED_SMT
1962        bool
1963
1964config SYS_SUPPORTS_MULTITHREADING
1965        bool
1966
1967config MIPS_MT_FPAFF
1968        bool "Dynamic FPU affinity for FP-intensive threads"
1969        default y
1970        depends on MIPS_MT_SMP || MIPS_MT_SMTC
1971
1972config MIPS_VPE_LOADER
1973        bool "VPE loader support."
1974        depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1975        select CPU_MIPSR2_IRQ_VI
1976        select CPU_MIPSR2_IRQ_EI
1977        select MIPS_MT
1978        help
1979          Includes a loader for loading an elf relocatable object
1980          onto another VPE and running it.
1981
1982config MIPS_VPE_LOADER_CMP
1983        bool
1984        default "y"
1985        depends on MIPS_VPE_LOADER && MIPS_CMP
1986
1987config MIPS_VPE_LOADER_MT
1988        bool
1989        default "y"
1990        depends on MIPS_VPE_LOADER && !MIPS_CMP
1991
1992config MIPS_MT_SMTC_IM_BACKSTOP
1993        bool "Use per-TC register bits as backstop for inhibited IM bits"
1994        depends on MIPS_MT_SMTC
1995        default n
1996        help
1997          To support multiple TC microthreads acting as "CPUs" within
1998          a VPE, VPE-wide interrupt mask bits must be specially manipulated
1999          during interrupt handling. To support legacy drivers and interrupt
2000          controller management code, SMTC has a "backstop" to track and
2001          if necessary restore the interrupt mask. This has some performance
2002          impact on interrupt service overhead.
2003
2004config MIPS_MT_SMTC_IRQAFF
2005        bool "Support IRQ affinity API"
2006        depends on MIPS_MT_SMTC
2007        default n
2008        help
2009          Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
2010          for SMTC Linux kernel. Requires platform support, of which
2011          an example can be found in the MIPS kernel i8259 and Malta
2012          platform code.  Adds some overhead to interrupt dispatch, and
2013          should be used only if you know what you are doing.
2014
2015config MIPS_VPE_LOADER_TOM
2016        bool "Load VPE program into memory hidden from linux"
2017        depends on MIPS_VPE_LOADER
2018        default y
2019        help
2020          The loader can use memory that is present but has been hidden from
2021          Linux using the kernel command line option "mem=xxMB". It's up to
2022          you to ensure the amount you put in the option and the space your
2023          program requires is less or equal to the amount physically present.
2024
2025config MIPS_VPE_APSP_API
2026        bool "Enable support for AP/SP API (RTLX)"
2027        depends on MIPS_VPE_LOADER
2028        help
2029
2030config MIPS_VPE_APSP_API_CMP
2031        bool
2032        default "y"
2033        depends on MIPS_VPE_APSP_API && MIPS_CMP
2034
2035config MIPS_VPE_APSP_API_MT
2036        bool
2037        default "y"
2038        depends on MIPS_VPE_APSP_API && !MIPS_CMP
2039
2040config MIPS_CMP
2041        bool "MIPS CMP framework support (DEPRECATED)"
2042        depends on SYS_SUPPORTS_MIPS_CMP && !MIPS_MT_SMTC
2043        select MIPS_GIC_IPI
2044        select SYNC_R4K
2045        select WEAK_ORDERING
2046        default n
2047        help
2048          Select this if you are using a bootloader which implements the "CMP
2049          framework" protocol (ie. YAMON) and want your kernel to make use of
2050          its ability to start secondary CPUs.
2051
2052          Unless you have a specific need, you should use CONFIG_MIPS_CPS
2053          instead of this.
2054
2055config MIPS_CPS
2056        bool "MIPS Coherent Processing System support"
2057        depends on SYS_SUPPORTS_MIPS_CPS
2058        select MIPS_CM
2059        select MIPS_CPC
2060        select MIPS_GIC_IPI
2061        select SMP
2062        select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2063        select SYS_SUPPORTS_SMP
2064        select WEAK_ORDERING
2065        help
2066          Select this if you wish to run an SMP kernel across multiple cores
2067          within a MIPS Coherent Processing System. When this option is
2068          enabled the kernel will probe for other cores and boot them with
2069          no external assistance. It is safe to enable this when hardware
2070          support is unavailable.
2071
2072config MIPS_GIC_IPI
2073        bool
2074
2075config MIPS_CM
2076        bool
2077
2078config MIPS_CPC
2079        bool
2080
2081config SB1_PASS_1_WORKAROUNDS
2082        bool
2083        depends on CPU_SB1_PASS_1
2084        default y
2085
2086config SB1_PASS_2_WORKAROUNDS
2087        bool
2088        depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2089        default y
2090
2091config SB1_PASS_2_1_WORKAROUNDS
2092        bool
2093        depends on CPU_SB1 && CPU_SB1_PASS_2
2094        default y
2095
2096
2097config 64BIT_PHYS_ADDR
2098        bool
2099
2100config ARCH_PHYS_ADDR_T_64BIT
2101       def_bool 64BIT_PHYS_ADDR
2102
2103config CPU_HAS_SMARTMIPS
2104        depends on SYS_SUPPORTS_SMARTMIPS
2105        bool "Support for the SmartMIPS ASE"
2106        help
2107          SmartMIPS is a extension of the MIPS32 architecture aimed at
2108          increased security at both hardware and software level for
2109          smartcards.  Enabling this option will allow proper use of the
2110          SmartMIPS instructions by Linux applications.  However a kernel with
2111          this option will not work on a MIPS core without SmartMIPS core.  If
2112          you don't know you probably don't have SmartMIPS and should say N
2113          here.
2114
2115config CPU_MICROMIPS
2116        depends on SYS_SUPPORTS_MICROMIPS
2117        bool "Build kernel using microMIPS ISA"
2118        help
2119          When this option is enabled the kernel will be built using the
2120          microMIPS ISA
2121
2122config CPU_HAS_MSA
2123        bool "Support for the MIPS SIMD Architecture"
2124        depends on CPU_SUPPORTS_MSA
2125        default y
2126        help
2127          MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2128          and a set of SIMD instructions to operate on them. When this option
2129          is enabled the kernel will support allocating & switching MSA
2130          vector register contexts. If you know that your kernel will only be
2131          running on CPUs which do not support MSA or that your userland will
2132          not be making use of it then you may wish to say N here to reduce
2133          the size & complexity of your kernel.
2134
2135          If unsure, say Y.
2136
2137config CPU_HAS_WB
2138        bool
2139
2140config XKS01
2141        bool
2142
2143#
2144# Vectored interrupt mode is an R2 feature
2145#
2146config CPU_MIPSR2_IRQ_VI
2147        bool
2148
2149#
2150# Extended interrupt mode is an R2 feature
2151#
2152config CPU_MIPSR2_IRQ_EI
2153        bool
2154
2155config CPU_HAS_SYNC
2156        bool
2157        depends on !CPU_R3000
2158        default y
2159
2160#
2161# CPU non-features
2162#
2163config CPU_DADDI_WORKAROUNDS
2164        bool
2165
2166config CPU_R4000_WORKAROUNDS
2167        bool
2168        select CPU_R4400_WORKAROUNDS
2169
2170config CPU_R4400_WORKAROUNDS
2171        bool
2172
2173#
2174# - Highmem only makes sense for the 32-bit kernel.
2175# - The current highmem code will only work properly on physically indexed
2176#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2177#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2178#   moment we protect the user and offer the highmem option only on machines
2179#   where it's known to be safe.  This will not offer highmem on a few systems
2180#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2181#   indexed CPUs but we're playing safe.
2182# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2183#   know they might have memory configurations that could make use of highmem
2184#   support.
2185#
2186config HIGHMEM
2187        bool "High Memory Support"
2188        depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2189
2190config CPU_SUPPORTS_HIGHMEM
2191        bool
2192
2193config SYS_SUPPORTS_HIGHMEM
2194        bool
2195
2196config SYS_SUPPORTS_SMARTMIPS
2197        bool
2198
2199config SYS_SUPPORTS_MICROMIPS
2200        bool
2201
2202config CPU_SUPPORTS_MSA
2203        bool
2204
2205config ARCH_FLATMEM_ENABLE
2206        def_bool y
2207        depends on !NUMA && !CPU_LOONGSON2
2208
2209config ARCH_DISCONTIGMEM_ENABLE
2210        bool
2211        default y if SGI_IP27
2212        help
2213          Say Y to support efficient handling of discontiguous physical memory,
2214          for architectures which are either NUMA (Non-Uniform Memory Access)
2215          or have huge holes in the physical address space for other reasons.
2216          See <file:Documentation/vm/numa> for more.
2217
2218config ARCH_SPARSEMEM_ENABLE
2219        bool
2220        select SPARSEMEM_STATIC
2221
2222config NUMA
2223        bool "NUMA Support"
2224        depends on SYS_SUPPORTS_NUMA
2225        help
2226          Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2227          Access).  This option improves performance on systems with more
2228          than two nodes; on two node systems it is generally better to
2229          leave it disabled; on single node systems disable this option
2230          disabled.
2231
2232config SYS_SUPPORTS_NUMA
2233        bool
2234
2235config NODES_SHIFT
2236        int
2237        default "6"
2238        depends on NEED_MULTIPLE_NODES
2239
2240config HW_PERF_EVENTS
2241        bool "Enable hardware performance counter support for perf events"
2242        depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2243        default y
2244        help
2245          Enable hardware performance counter support for perf events. If
2246          disabled, perf events will use software events only.
2247
2248source "mm/Kconfig"
2249
2250config SMP
2251        bool "Multi-Processing support"
2252        depends on SYS_SUPPORTS_SMP
2253        help
2254          This enables support for systems with more than one CPU. If you have
2255          a system with only one CPU, say N. If you have a system with more
2256          than one CPU, say Y.
2257
2258          If you say N here, the kernel will run on uni- and multiprocessor
2259          machines, but will use only one CPU of a multiprocessor machine. If
2260          you say Y here, the kernel will run on many, but not all,
2261          uniprocessor machines. On a uniprocessor machine, the kernel
2262          will run faster if you say N here.
2263
2264          People using multiprocessor machines who say Y here should also say
2265          Y to "Enhanced Real Time Clock Support", below.
2266
2267          See also the SMP-HOWTO available at
2268          <http://www.tldp.org/docs.html#howto>.
2269
2270          If you don't know what to do here, say N.
2271
2272config SMP_UP
2273        bool
2274
2275config SYS_SUPPORTS_MIPS_CMP
2276        bool
2277
2278config SYS_SUPPORTS_MIPS_CPS
2279        bool
2280
2281config SYS_SUPPORTS_SMP
2282        bool
2283
2284config NR_CPUS_DEFAULT_4
2285        bool
2286
2287config NR_CPUS_DEFAULT_8
2288        bool
2289
2290config NR_CPUS_DEFAULT_16
2291        bool
2292
2293config NR_CPUS_DEFAULT_32
2294        bool
2295
2296config NR_CPUS_DEFAULT_64
2297        bool
2298
2299config NR_CPUS
2300        int "Maximum number of CPUs (2-64)"
2301        range 2 64
2302        depends on SMP
2303        default "4" if NR_CPUS_DEFAULT_4
2304        default "8" if NR_CPUS_DEFAULT_8
2305        default "16" if NR_CPUS_DEFAULT_16
2306        default "32" if NR_CPUS_DEFAULT_32
2307        default "64" if NR_CPUS_DEFAULT_64
2308        help
2309          This allows you to specify the maximum number of CPUs which this
2310          kernel will support.  The maximum supported value is 32 for 32-bit
2311          kernel and 64 for 64-bit kernels; the minimum value which makes
2312          sense is 1 for Qemu (useful only for kernel debugging purposes)
2313          and 2 for all others.
2314
2315          This is purely to save memory - each supported CPU adds
2316          approximately eight kilobytes to the kernel image.  For best
2317          performance should round up your number of processors to the next
2318          power of two.
2319
2320config MIPS_PERF_SHARED_TC_COUNTERS
2321        bool
2322
2323#
2324# Timer Interrupt Frequency Configuration
2325#
2326
2327choice
2328        prompt "Timer frequency"
2329        default HZ_250
2330        help
2331         Allows the configuration of the timer frequency.
2332
2333        config HZ_48
2334                bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2335
2336        config HZ_100
2337                bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2338
2339        config HZ_128
2340                bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2341
2342        config HZ_250
2343                bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2344
2345        config HZ_256
2346                bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2347
2348        config HZ_1000
2349                bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2350
2351        config HZ_1024
2352                bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2353
2354endchoice
2355
2356config SYS_SUPPORTS_48HZ
2357        bool
2358
2359config SYS_SUPPORTS_100HZ
2360        bool
2361
2362config SYS_SUPPORTS_128HZ
2363        bool
2364
2365config SYS_SUPPORTS_250HZ
2366        bool
2367
2368config SYS_SUPPORTS_256HZ
2369        bool
2370
2371config SYS_SUPPORTS_1000HZ
2372        bool
2373
2374config SYS_SUPPORTS_1024HZ
2375        bool
2376
2377config SYS_SUPPORTS_ARBIT_HZ
2378        bool
2379        default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
2380                     !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
2381                     !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
2382                     !SYS_SUPPORTS_1024HZ
2383
2384config HZ
2385        int
2386        default 48 if HZ_48
2387        default 100 if HZ_100
2388        default 128 if HZ_128
2389        default 250 if HZ_250
2390        default 256 if HZ_256
2391        default 1000 if HZ_1000
2392        default 1024 if HZ_1024
2393
2394source "kernel/Kconfig.preempt"
2395
2396config KEXEC
2397        bool "Kexec system call"
2398        help
2399          kexec is a system call that implements the ability to shutdown your
2400          current kernel, and to start another kernel.  It is like a reboot
2401          but it is independent of the system firmware.   And like a reboot
2402          you can start any kernel with it, not just Linux.
2403
2404          The name comes from the similarity to the exec system call.
2405
2406          It is an ongoing process to be certain the hardware in a machine
2407          is properly shutdown, so do not be surprised if this code does not
2408          initially work for you.  As of this writing the exact hardware
2409          interface is strongly in flux, so no good recommendation can be
2410          made.
2411
2412config CRASH_DUMP
2413          bool "Kernel crash dumps"
2414          help
2415          Generate crash dump after being started by kexec.
2416          This should be normally only set in special crash dump kernels
2417          which are loaded in the main kernel with kexec-tools into
2418          a specially reserved region and then later executed after
2419          a crash by kdump/kexec. The crash dump kernel must be compiled
2420          to a memory address not used by the main kernel or firmware using
2421          PHYSICAL_START.
2422
2423config PHYSICAL_START
2424          hex "Physical address where the kernel is loaded"
2425          default "0xffffffff84000000" if 64BIT
2426          default "0x84000000" if 32BIT
2427          depends on CRASH_DUMP
2428          help
2429          This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2430          If you plan to use kernel for capturing the crash dump change
2431          this value to start of the reserved region (the "X" value as
2432          specified in the "crashkernel=YM@XM" command line boot parameter
2433          passed to the panic-ed kernel).
2434
2435config SECCOMP
2436        bool "Enable seccomp to safely compute untrusted bytecode"
2437        depends on PROC_FS
2438        default y
2439        help
2440          This kernel feature is useful for number crunching applications
2441          that may need to compute untrusted bytecode during their
2442          execution. By using pipes or other transports made available to
2443          the process as file descriptors supporting the read/write
2444          syscalls, it's possible to isolate those applications in
2445          their own address space using seccomp. Once seccomp is
2446          enabled via /proc/<pid>/seccomp, it cannot be disabled
2447          and the task is only allowed to execute a few safe syscalls
2448          defined by each seccomp mode.
2449
2450          If unsure, say Y. Only embedded should say N here.
2451
2452config MIPS_O32_FP64_SUPPORT
2453        bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
2454        depends on 32BIT || MIPS32_O32
2455        help
2456          When this is enabled, the kernel will support use of 64-bit floating
2457          point registers with binaries using the O32 ABI along with the
2458          EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2459          32-bit MIPS systems this support is at the cost of increasing the
2460          size and complexity of the compiled FPU emulator. Thus if you are
2461          running a MIPS32 system and know that none of your userland binaries
2462          will require 64-bit floating point, you may wish to reduce the size
2463          of your kernel & potentially improve FP emulation performance by
2464          saying N here.
2465
2466          Although binutils currently supports use of this flag the details
2467          concerning its effect upon the O32 ABI in userland are still being
2468          worked on. In order to avoid userland becoming dependant upon current
2469          behaviour before the details have been finalised, this option should
2470          be considered experimental and only enabled by those working upon
2471          said details.
2472
2473          If unsure, say N.
2474
2475config USE_OF
2476        bool
2477        select OF
2478        select OF_EARLY_FLATTREE
2479        select IRQ_DOMAIN
2480
2481endmenu
2482
2483config LOCKDEP_SUPPORT
2484        bool
2485        default y
2486
2487config STACKTRACE_SUPPORT
2488        bool
2489        default y
2490
2491source "init/Kconfig"
2492
2493source "kernel/Kconfig.freezer"
2494
2495menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
2496
2497config HW_HAS_EISA
2498        bool
2499config HW_HAS_PCI
2500        bool
2501
2502config PCI
2503        bool "Support for PCI controller"
2504        depends on HW_HAS_PCI
2505        select PCI_DOMAINS
2506        select NO_GENERIC_PCI_IOPORT_MAP
2507        help
2508          Find out whether you have a PCI motherboard. PCI is the name of a
2509          bus system, i.e. the way the CPU talks to the other stuff inside
2510          your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
2511          say Y, otherwise N.
2512
2513config HT_PCI
2514        bool "Support for HT-linked PCI"
2515        default y
2516        depends on CPU_LOONGSON3
2517        select PCI
2518        select PCI_DOMAINS
2519        help
2520          Loongson family machines use Hyper-Transport bus for inter-core
2521          connection and device connection. The PCI bus is a subordinate
2522          linked at HT. Choose Y for Loongson-3 based machines.
2523
2524config PCI_DOMAINS
2525        bool
2526
2527source "drivers/pci/Kconfig"
2528
2529source "drivers/pci/pcie/Kconfig"
2530
2531#
2532# ISA support is now enabled via select.  Too many systems still have the one
2533# or other ISA chip on the board that users don't know about so don't expect
2534# users to choose the right thing ...
2535#
2536config ISA
2537        bool
2538
2539config EISA
2540        bool "EISA support"
2541        depends on HW_HAS_EISA
2542        select ISA
2543        select GENERIC_ISA_DMA
2544        ---help---
2545          The Extended Industry Standard Architecture (EISA) bus was
2546          developed as an open alternative to the IBM MicroChannel bus.
2547
2548          The EISA bus provided some of the features of the IBM MicroChannel
2549          bus while maintaining backward compatibility with cards made for
2550          the older ISA bus.  The EISA bus saw limited use between 1988 and
2551          1995 when it was made obsolete by the PCI bus.
2552
2553          Say Y here if you are building a kernel for an EISA-based machine.
2554
2555          Otherwise, say N.
2556
2557source "drivers/eisa/Kconfig"
2558
2559config TC
2560        bool "TURBOchannel support"
2561        depends on MACH_DECSTATION
2562        help
2563          TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
2564          processors.  TURBOchannel programming specifications are available
2565          at:
2566          <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
2567          and:
2568          <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
2569          Linux driver support status is documented at:
2570          <http://www.linux-mips.org/wiki/DECstation>
2571
2572config MMU
2573        bool
2574        default y
2575
2576config I8253
2577        bool
2578        select CLKSRC_I8253
2579        select CLKEVT_I8253
2580        select MIPS_EXTERNAL_TIMER
2581
2582config ZONE_DMA
2583        bool
2584
2585config ZONE_DMA32
2586        bool
2587
2588source "drivers/pcmcia/Kconfig"
2589
2590source "drivers/pci/hotplug/Kconfig"
2591
2592config RAPIDIO
2593        tristate "RapidIO support"
2594        depends on PCI
2595        default n
2596        help
2597          If you say Y here, the kernel will include drivers and
2598          infrastructure code to support RapidIO interconnect devices.
2599
2600source "drivers/rapidio/Kconfig"
2601
2602endmenu
2603
2604menu "Executable file formats"
2605
2606source "fs/Kconfig.binfmt"
2607
2608config TRAD_SIGNALS
2609        bool
2610
2611config MIPS32_COMPAT
2612        bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
2613        depends on 64BIT
2614        help
2615          Select this option if you want Linux/MIPS 32-bit binary
2616          compatibility. Since all software available for Linux/MIPS is
2617          currently 32-bit you should say Y here.
2618
2619config COMPAT
2620        bool
2621        depends on MIPS32_COMPAT
2622        select ARCH_WANT_OLD_COMPAT_IPC
2623        default y
2624
2625config SYSVIPC_COMPAT
2626        bool
2627        depends on COMPAT && SYSVIPC
2628        default y
2629
2630config MIPS32_O32
2631        bool "Kernel support for o32 binaries"
2632        depends on MIPS32_COMPAT
2633        help
2634          Select this option if you want to run o32 binaries.  These are pure
2635          32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
2636          existing binaries are in this format.
2637
2638          If unsure, say Y.
2639
2640config MIPS32_N32
2641        bool "Kernel support for n32 binaries"
2642        depends on MIPS32_COMPAT
2643        help
2644          Select this option if you want to run n32 binaries.  These are
2645          64-bit binaries using 32-bit quantities for addressing and certain
2646          data that would normally be 64-bit.  They are used in special
2647          cases.
2648
2649          If unsure, say N.
2650
2651config BINFMT_ELF32
2652        bool
2653        default y if MIPS32_O32 || MIPS32_N32
2654
2655endmenu
2656
2657menu "Power management options"
2658
2659config ARCH_HIBERNATION_POSSIBLE
2660        def_bool y
2661        depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2662
2663config ARCH_SUSPEND_POSSIBLE
2664        def_bool y
2665        depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
2666
2667source "kernel/power/Kconfig"
2668
2669endmenu
2670
2671config MIPS_EXTERNAL_TIMER
2672        bool
2673
2674if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
2675menu "CPU Power Management"
2676source "drivers/cpufreq/Kconfig"
2677endmenu
2678endif
2679
2680source "net/Kconfig"
2681
2682source "drivers/Kconfig"
2683
2684source "drivers/firmware/Kconfig"
2685
2686source "fs/Kconfig"
2687
2688source "arch/mips/Kconfig.debug"
2689
2690source "security/Kconfig"
2691
2692source "crypto/Kconfig"
2693
2694source "lib/Kconfig"
2695
2696source "arch/mips/kvm/Kconfig"
2697