| | 1 | # |
| | 2 | # For a description of the syntax of this configuration file, |
| | 3 | # see Documentation/kbuild/kconfig-language.txt. |
| | 4 | # |
| | 5 | |
| | 6 | mainmenu "Linux Kernel Configuration" |
| | 7 | |
| | 8 | config ARM |
| | 9 | bool |
| | 10 | default y |
| | 11 | select HAVE_AOUT |
| | 12 | select HAVE_IDE |
| | 13 | select RTC_LIB |
| | 14 | select SYS_SUPPORTS_APM_EMULATION |
| | 15 | select GENERIC_ATOMIC64 if (!CPU_32v6K) |
| | 16 | select HAVE_OPROFILE |
| | 17 | select HAVE_ARCH_KGDB |
| | 18 | select HAVE_KPROBES if (!XIP_KERNEL) |
| | 19 | select HAVE_KRETPROBES if (HAVE_KPROBES) |
| | 20 | select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) |
| | 21 | select HAVE_GENERIC_DMA_COHERENT |
| | 22 | select HAVE_KERNEL_GZIP |
| | 23 | select HAVE_KERNEL_LZO |
| | 24 | select HAVE_PERF_EVENTS |
| | 25 | select PERF_USE_VMALLOC |
| | 26 | help |
| | 27 | The ARM series is a line of low-power-consumption RISC chip designs |
| | 28 | licensed by ARM Ltd and targeted at embedded applications and |
| | 29 | handhelds such as the Compaq IPAQ. ARM-based PCs are no longer |
| | 30 | manufactured, but legacy ARM-based PC hardware remains popular in |
| | 31 | Europe. There is an ARM Linux project with a web page at |
| | 32 | <http://www.arm.linux.org.uk/>. |
| | 33 | |
| | 34 | config HAVE_PWM |
| | 35 | bool |
| | 36 | |
| | 37 | config SYS_SUPPORTS_APM_EMULATION |
| | 38 | bool |
| | 39 | |
| | 40 | config GENERIC_GPIO |
| | 41 | bool |
| | 42 | |
| | 43 | config GENERIC_TIME |
| | 44 | bool |
| | 45 | |
| | 46 | config GENERIC_CLOCKEVENTS |
| | 47 | bool |
| | 48 | |
| | 49 | config GENERIC_CLOCKEVENTS_BROADCAST |
| | 50 | bool |
| | 51 | depends on GENERIC_CLOCKEVENTS |
| | 52 | default y if SMP && !LOCAL_TIMERS |
| | 53 | |
| | 54 | config HAVE_TCM |
| | 55 | bool |
| | 56 | select GENERIC_ALLOCATOR |
| | 57 | |
| | 58 | config HAVE_PROC_CPU |
| | 59 | bool |
| | 60 | |
| | 61 | config NO_IOPORT |
| | 62 | bool |
| | 63 | |
| | 64 | config EISA |
| | 65 | bool |
| | 66 | ---help--- |
| | 67 | The Extended Industry Standard Architecture (EISA) bus was |
| | 68 | developed as an open alternative to the IBM MicroChannel bus. |
| | 69 | |
| | 70 | The EISA bus provided some of the features of the IBM MicroChannel |
| | 71 | bus while maintaining backward compatibility with cards made for |
| | 72 | the older ISA bus. The EISA bus saw limited use between 1988 and |
| | 73 | 1995 when it was made obsolete by the PCI bus. |
| | 74 | |
| | 75 | Say Y here if you are building a kernel for an EISA-based machine. |
| | 76 | |
| | 77 | Otherwise, say N. |
| | 78 | |
| | 79 | config SBUS |
| | 80 | bool |
| | 81 | |
| | 82 | config MCA |
| | 83 | bool |
| | 84 | help |
| | 85 | MicroChannel Architecture is found in some IBM PS/2 machines and |
| | 86 | laptops. It is a bus system similar to PCI or ISA. See |
| | 87 | <file:Documentation/mca.txt> (and especially the web page given |
| | 88 | there) before attempting to build an MCA bus kernel. |
| | 89 | |
| | 90 | config GENERIC_HARDIRQS |
| | 91 | bool |
| | 92 | default y |
| | 93 | |
| | 94 | config STACKTRACE_SUPPORT |
| | 95 | bool |
| | 96 | default y |
| | 97 | |
| | 98 | config HAVE_LATENCYTOP_SUPPORT |
| | 99 | bool |
| | 100 | depends on !SMP |
| | 101 | default y |
| | 102 | |
| | 103 | config LOCKDEP_SUPPORT |
| | 104 | bool |
| | 105 | default y |
| | 106 | |
| | 107 | config TRACE_IRQFLAGS_SUPPORT |
| | 108 | bool |
| | 109 | default y |
| | 110 | |
| | 111 | config HARDIRQS_SW_RESEND |
| | 112 | bool |
| | 113 | default y |
| | 114 | |
| | 115 | config GENERIC_IRQ_PROBE |
| | 116 | bool |
| | 117 | default y |
| | 118 | |
| | 119 | config GENERIC_LOCKBREAK |
| | 120 | bool |
| | 121 | default y |
| | 122 | depends on SMP && PREEMPT |
| | 123 | |
| | 124 | config RWSEM_GENERIC_SPINLOCK |
| | 125 | bool |
| | 126 | default y |
| | 127 | |
| | 128 | config RWSEM_XCHGADD_ALGORITHM |
| | 129 | bool |
| | 130 | |
| | 131 | config ARCH_HAS_ILOG2_U32 |
| | 132 | bool |
| | 133 | |
| | 134 | config ARCH_HAS_ILOG2_U64 |
| | 135 | bool |
| | 136 | |
| | 137 | config ARCH_HAS_CPUFREQ |
| | 138 | bool |
| | 139 | help |
| | 140 | Internal node to signify that the ARCH has CPUFREQ support |
| | 141 | and that the relevant menu configurations are displayed for |
| | 142 | it. |
| | 143 | |
| | 144 | config GENERIC_HWEIGHT |
| | 145 | bool |
| | 146 | default y |
| | 147 | |
| | 148 | config GENERIC_CALIBRATE_DELAY |
| | 149 | bool |
| | 150 | default y |
| | 151 | |
| | 152 | config ARCH_MAY_HAVE_PC_FDC |
| | 153 | bool |
| | 154 | |
| | 155 | config ZONE_DMA |
| | 156 | bool |
| | 157 | |
| | 158 | config NEED_DMA_MAP_STATE |
| | 159 | def_bool y |
| | 160 | |
| | 161 | config GENERIC_ISA_DMA |
| | 162 | bool |
| | 163 | |
| | 164 | config FIQ |
| | 165 | bool |
| | 166 | |
| | 167 | config ARCH_MTD_XIP |
| | 168 | bool |
| | 169 | |
| | 170 | config GENERIC_HARDIRQS_NO__DO_IRQ |
| | 171 | def_bool y |
| | 172 | |
| | 173 | config ARM_L1_CACHE_SHIFT_6 |
| | 174 | bool |
| | 175 | help |
| | 176 | Setting ARM L1 cache line size to 64 Bytes. |
| | 177 | |
| | 178 | if OPROFILE |
| | 179 | |
| | 180 | config OPROFILE_ARMV6 |
| | 181 | def_bool y |
| | 182 | depends on CPU_V6 && !SMP |
| | 183 | select OPROFILE_ARM11_CORE |
| | 184 | |
| | 185 | config OPROFILE_MPCORE |
| | 186 | def_bool y |
| | 187 | depends on CPU_V6 && SMP |
| | 188 | select OPROFILE_ARM11_CORE |
| | 189 | |
| | 190 | config OPROFILE_ARM11_CORE |
| | 191 | bool |
| | 192 | |
| | 193 | config OPROFILE_ARMV7 |
| | 194 | def_bool y |
| | 195 | depends on CPU_V7 && !SMP |
| | 196 | bool |
| | 197 | |
| | 198 | endif |
| | 199 | |
| | 200 | config VECTORS_BASE |
| | 201 | hex |
| | 202 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
| | 203 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
| | 204 | default 0x00000000 |
| | 205 | help |
| | 206 | The base address of exception vectors. |
| | 207 | |
| | 208 | source "init/Kconfig" |
| | 209 | |
| | 210 | source "kernel/Kconfig.freezer" |
| | 211 | |
| | 212 | menu "System Type" |
| | 213 | |
| | 214 | config MMU |
| | 215 | bool "MMU-based Paged Memory Management Support" |
| | 216 | default y |
| | 217 | help |
| | 218 | Select if you want MMU-based virtualised addressing space |
| | 219 | support by paged memory management. If unsure, say 'Y'. |
| | 220 | |
| | 221 | choice |
| | 222 | prompt "ARM system type" |
| | 223 | default ARCH_VERSATILE |
| | 224 | |
| | 225 | config ARCH_AAEC2000 |
| | 226 | bool "Agilent AAEC-2000 based" |
| | 227 | select CPU_ARM920T |
| | 228 | select ARM_AMBA |
| | 229 | select HAVE_CLK |
| | 230 | help |
| | 231 | This enables support for systems based on the Agilent AAEC-2000 |
| | 232 | |
| | 233 | config ARCH_INTEGRATOR |
| | 234 | bool "ARM Ltd. Integrator family" |
| | 235 | select ARM_AMBA |
| | 236 | select ARCH_HAS_CPUFREQ |
| | 237 | select HAVE_CLK |
| | 238 | select COMMON_CLKDEV |
| | 239 | select ICST525 |
| | 240 | help |
| | 241 | Support for ARM's Integrator platform. |
| | 242 | |
| | 243 | config ARCH_REALVIEW |
| | 244 | bool "ARM Ltd. RealView family" |
| | 245 | select ARM_AMBA |
| | 246 | select HAVE_CLK |
| | 247 | select COMMON_CLKDEV |
| | 248 | select ICST307 |
| | 249 | select GENERIC_TIME |
| | 250 | select GENERIC_CLOCKEVENTS |
| | 251 | select ARCH_WANT_OPTIONAL_GPIOLIB |
| | 252 | help |
| | 253 | This enables support for ARM Ltd RealView boards. |
| | 254 | |
| | 255 | config ARCH_VERSATILE |
| | 256 | bool "ARM Ltd. Versatile family" |
| | 257 | select ARM_AMBA |
| | 258 | select ARM_VIC |
| | 259 | select HAVE_CLK |
| | 260 | select COMMON_CLKDEV |
| | 261 | select ICST307 |
| | 262 | select GENERIC_TIME |
| | 263 | select GENERIC_CLOCKEVENTS |
| | 264 | select ARCH_WANT_OPTIONAL_GPIOLIB |
| | 265 | help |
| | 266 | This enables support for ARM Ltd Versatile board. |
| | 267 | |
| | 268 | config ARCH_AT91 |
| | 269 | bool "Atmel AT91" |
| | 270 | select GENERIC_GPIO |
| | 271 | select ARCH_REQUIRE_GPIOLIB |
| | 272 | select HAVE_CLK |
| | 273 | help |
| | 274 | This enables support for systems based on the Atmel AT91RM9200, |
| | 275 | AT91SAM9 and AT91CAP9 processors. |
| | 276 | |
| | 277 | config ARCH_CLPS711X |
| | 278 | bool "Cirrus Logic CLPS711x/EP721x-based" |
| | 279 | select CPU_ARM720T |
| | 280 | help |
| | 281 | Support for Cirrus Logic 711x/721x based boards. |
| | 282 | |
| | 283 | config ARCH_GEMINI |
| | 284 | bool "Cortina Systems Gemini" |
| | 285 | select CPU_FA526 |
| | 286 | select GENERIC_GPIO |
| | 287 | select ARCH_REQUIRE_GPIOLIB |
| | 288 | help |
| | 289 | Support for the Cortina Systems Gemini family SoCs |
| | 290 | |
| | 291 | config ARCH_EBSA110 |
| | 292 | bool "EBSA-110" |
| | 293 | select CPU_SA110 |
| | 294 | select ISA |
| | 295 | select NO_IOPORT |
| | 296 | help |
| | 297 | This is an evaluation board for the StrongARM processor available |
| | 298 | from Digital. It has limited hardware on-board, including an |
| | 299 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
| | 300 | parallel port. |
| | 301 | |
| | 302 | config ARCH_EP93XX |
| | 303 | bool "EP93xx-based" |
| | 304 | select CPU_ARM920T |
| | 305 | select ARM_AMBA |
| | 306 | select ARM_VIC |
| | 307 | select GENERIC_GPIO |
| | 308 | select HAVE_CLK |
| | 309 | select COMMON_CLKDEV |
| | 310 | select ARCH_REQUIRE_GPIOLIB |
| | 311 | select ARCH_HAS_HOLES_MEMORYMODEL |
| | 312 | help |
| | 313 | This enables support for the Cirrus EP93xx series of CPUs. |
| | 314 | |
| | 315 | config ARCH_FOOTBRIDGE |
| | 316 | bool "FootBridge" |
| | 317 | select CPU_SA110 |
| | 318 | select FOOTBRIDGE |
| | 319 | help |
| | 320 | Support for systems based on the DC21285 companion chip |
| | 321 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. |
| | 322 | |
| | 323 | config ARCH_MXC |
| | 324 | bool "Freescale MXC/iMX-based" |
| | 325 | select GENERIC_TIME |
| | 326 | select GENERIC_CLOCKEVENTS |
| | 327 | select ARCH_REQUIRE_GPIOLIB |
| | 328 | select HAVE_CLK |
| | 329 | select COMMON_CLKDEV |
| | 330 | help |
| | 331 | Support for Freescale MXC/iMX-based family of processors |
| | 332 | |
| | 333 | config ARCH_STMP3XXX |
| | 334 | bool "Freescale STMP3xxx" |
| | 335 | select CPU_ARM926T |
| | 336 | select HAVE_CLK |
| | 337 | select COMMON_CLKDEV |
| | 338 | select ARCH_REQUIRE_GPIOLIB |
| | 339 | select GENERIC_TIME |
| | 340 | select GENERIC_CLOCKEVENTS |
| | 341 | select GENERIC_GPIO |
| | 342 | select USB_ARCH_HAS_EHCI |
| | 343 | help |
| | 344 | Support for systems based on the Freescale 3xxx CPUs. |
| | 345 | |
| | 346 | config ARCH_NETX |
| | 347 | bool "Hilscher NetX based" |
| | 348 | select CPU_ARM926T |
| | 349 | select ARM_VIC |
| | 350 | select GENERIC_CLOCKEVENTS |
| | 351 | select GENERIC_TIME |
| | 352 | help |
| | 353 | This enables support for systems based on the Hilscher NetX Soc |
| | 354 | |
| | 355 | config ARCH_H720X |
| | 356 | bool "Hynix HMS720x-based" |
| | 357 | select CPU_ARM720T |
| | 358 | select ISA_DMA_API |
| | 359 | help |
| | 360 | This enables support for systems based on the Hynix HMS720x |
| | 361 | |
| | 362 | config ARCH_NOMADIK |
| | 363 | bool "STMicroelectronics Nomadik" |
| | 364 | select ARM_AMBA |
| | 365 | select ARM_VIC |
| | 366 | select CPU_ARM926T |
| | 367 | select HAVE_CLK |
| | 368 | select COMMON_CLKDEV |
| | 369 | select GENERIC_TIME |
| | 370 | select GENERIC_CLOCKEVENTS |
| | 371 | select GENERIC_GPIO |
| | 372 | select ARCH_REQUIRE_GPIOLIB |
| | 373 | help |
| | 374 | Support for the Nomadik platform by ST-Ericsson |
| | 375 | |
| | 376 | config ARCH_IOP13XX |
| | 377 | bool "IOP13xx-based" |
| | 378 | depends on MMU |
| | 379 | select CPU_XSC3 |
| | 380 | select PLAT_IOP |
| | 381 | select PCI |
| | 382 | select ARCH_SUPPORTS_MSI |
| | 383 | select VMSPLIT_1G |
| | 384 | help |
| | 385 | Support for Intel's IOP13XX (XScale) family of processors. |
| | 386 | |
| | 387 | config ARCH_IOP32X |
| | 388 | bool "IOP32x-based" |
| | 389 | depends on MMU |
| | 390 | select CPU_XSCALE |
| | 391 | select PLAT_IOP |
| | 392 | select PCI |
| | 393 | select GENERIC_GPIO |
| | 394 | select ARCH_REQUIRE_GPIOLIB |
| | 395 | help |
| | 396 | Support for Intel's 80219 and IOP32X (XScale) family of |
| | 397 | processors. |
| | 398 | |
| | 399 | config ARCH_IOP33X |
| | 400 | bool "IOP33x-based" |
| | 401 | depends on MMU |
| | 402 | select CPU_XSCALE |
| | 403 | select PLAT_IOP |
| | 404 | select PCI |
| | 405 | select GENERIC_GPIO |
| | 406 | select ARCH_REQUIRE_GPIOLIB |
| | 407 | help |
| | 408 | Support for Intel's IOP33X (XScale) family of processors. |
| | 409 | |
| | 410 | config ARCH_IXP23XX |
| | 411 | bool "IXP23XX-based" |
| | 412 | depends on MMU |
| | 413 | select CPU_XSC3 |
| | 414 | select PCI |
| | 415 | help |
| | 416 | Support for Intel's IXP23xx (XScale) family of processors. |
| | 417 | |
| | 418 | config ARCH_IXP2000 |
| | 419 | bool "IXP2400/2800-based" |
| | 420 | depends on MMU |
| | 421 | select CPU_XSCALE |
| | 422 | select PCI |
| | 423 | help |
| | 424 | Support for Intel's IXP2400/2800 (XScale) family of processors. |
| | 425 | |
| | 426 | config ARCH_IXP4XX |
| | 427 | bool "IXP4xx-based" |
| | 428 | depends on MMU |
| | 429 | select CPU_XSCALE |
| | 430 | select GENERIC_GPIO |
| | 431 | select GENERIC_TIME |
| | 432 | select GENERIC_CLOCKEVENTS |
| | 433 | select DMABOUNCE if PCI |
| | 434 | help |
| | 435 | Support for Intel's IXP4XX (XScale) family of processors. |
| | 436 | |
| | 437 | config ARCH_L7200 |
| | 438 | bool "LinkUp-L7200" |
| | 439 | select CPU_ARM720T |
| | 440 | select FIQ |
| | 441 | help |
| | 442 | Say Y here if you intend to run this kernel on a LinkUp Systems |
| | 443 | L7200 Software Development Board which uses an ARM720T processor. |
| | 444 | Information on this board can be obtained at: |
| | 445 | |
| | 446 | <http://www.linkupsys.com/> |
| | 447 | |
| | 448 | If you have any questions or comments about the Linux kernel port |
| | 449 | to this board, send e-mail to <sjhill@cotw.com>. |
| | 450 | |
| | 451 | config ARCH_DOVE |
| | 452 | bool "Marvell Dove" |
| | 453 | select PCI |
| | 454 | select GENERIC_GPIO |
| | 455 | select ARCH_REQUIRE_GPIOLIB |
| | 456 | select GENERIC_TIME |
| | 457 | select GENERIC_CLOCKEVENTS |
| | 458 | select PLAT_ORION |
| | 459 | help |
| | 460 | Support for the Marvell Dove SoC 88AP510 |
| | 461 | |
| | 462 | config ARCH_KIRKWOOD |
| | 463 | bool "Marvell Kirkwood" |
| | 464 | select CPU_FEROCEON |
| | 465 | select PCI |
| | 466 | select GENERIC_GPIO |
| | 467 | select ARCH_REQUIRE_GPIOLIB |
| | 468 | select GENERIC_TIME |
| | 469 | select GENERIC_CLOCKEVENTS |
| | 470 | select PLAT_ORION |
| | 471 | help |
| | 472 | Support for the following Marvell Kirkwood series SoCs: |
| | 473 | 88F6180, 88F6192 and 88F6281. |
| | 474 | |
| | 475 | config ARCH_LOKI |
| | 476 | bool "Marvell Loki (88RC8480)" |
| | 477 | select CPU_FEROCEON |
| | 478 | select GENERIC_TIME |
| | 479 | select GENERIC_CLOCKEVENTS |
| | 480 | select PLAT_ORION |
| | 481 | help |
| | 482 | Support for the Marvell Loki (88RC8480) SoC. |
| | 483 | |
| | 484 | config ARCH_MV78XX0 |
| | 485 | bool "Marvell MV78xx0" |
| | 486 | select CPU_FEROCEON |
| | 487 | select PCI |
| | 488 | select GENERIC_GPIO |
| | 489 | select ARCH_REQUIRE_GPIOLIB |
| | 490 | select GENERIC_TIME |
| | 491 | select GENERIC_CLOCKEVENTS |
| | 492 | select PLAT_ORION |
| | 493 | help |
| | 494 | Support for the following Marvell MV78xx0 series SoCs: |
| | 495 | MV781x0, MV782x0. |
| | 496 | |
| | 497 | config ARCH_ORION5X |
| | 498 | bool "Marvell Orion" |
| | 499 | depends on MMU |
| | 500 | select CPU_FEROCEON |
| | 501 | select PCI |
| | 502 | select GENERIC_GPIO |
| | 503 | select ARCH_REQUIRE_GPIOLIB |
| | 504 | select GENERIC_TIME |
| | 505 | select GENERIC_CLOCKEVENTS |
| | 506 | select PLAT_ORION |
| | 507 | help |
| | 508 | Support for the following Marvell Orion 5x series SoCs: |
| | 509 | Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), |
| | 510 | Orion-2 (5281), Orion-1-90 (6183). |
| | 511 | |
| | 512 | config ARCH_MMP |
| | 513 | bool "Marvell PXA168/910/MMP2" |
| | 514 | depends on MMU |
| | 515 | select GENERIC_GPIO |
| | 516 | select ARCH_REQUIRE_GPIOLIB |
| | 517 | select HAVE_CLK |
| | 518 | select COMMON_CLKDEV |
| | 519 | select GENERIC_TIME |
| | 520 | select GENERIC_CLOCKEVENTS |
| | 521 | select TICK_ONESHOT |
| | 522 | select PLAT_PXA |
| | 523 | help |
| | 524 | Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. |
| | 525 | |
| | 526 | config ARCH_KS8695 |
| | 527 | bool "Micrel/Kendin KS8695" |
| | 528 | select CPU_ARM922T |
| | 529 | select GENERIC_GPIO |
| | 530 | select ARCH_REQUIRE_GPIOLIB |
| | 531 | help |
| | 532 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based |
| | 533 | System-on-Chip devices. |
| | 534 | |
| | 535 | config ARCH_NS9XXX |
| | 536 | bool "NetSilicon NS9xxx" |
| | 537 | select CPU_ARM926T |
| | 538 | select GENERIC_GPIO |
| | 539 | select GENERIC_TIME |
| | 540 | select GENERIC_CLOCKEVENTS |
| | 541 | select HAVE_CLK |
| | 542 | help |
| | 543 | Say Y here if you intend to run this kernel on a NetSilicon NS9xxx |
| | 544 | System. |
| | 545 | |
| | 546 | <http://www.digi.com/products/microprocessors/index.jsp> |
| | 547 | |
| | 548 | config ARCH_W90X900 |
| | 549 | bool "Nuvoton W90X900 CPU" |
| | 550 | select CPU_ARM926T |
| | 551 | select ARCH_REQUIRE_GPIOLIB |
| | 552 | select GENERIC_GPIO |
| | 553 | select HAVE_CLK |
| | 554 | select COMMON_CLKDEV |
| | 555 | select GENERIC_TIME |
| | 556 | select GENERIC_CLOCKEVENTS |
| | 557 | help |
| | 558 | Support for Nuvoton (Winbond logic dept.) ARM9 processor, |
| | 559 | At present, the w90x900 has been renamed nuc900, regarding |
| | 560 | the ARM series product line, you can login the following |
| | 561 | link address to know more. |
| | 562 | |
| | 563 | <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ |
| | 564 | ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> |
| | 565 | |
| | 566 | config ARCH_NUC93X |
| | 567 | bool "Nuvoton NUC93X CPU" |
| | 568 | select CPU_ARM926T |
| | 569 | select HAVE_CLK |
| | 570 | select COMMON_CLKDEV |
| | 571 | help |
| | 572 | Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a |
| | 573 | low-power and high performance MPEG-4/JPEG multimedia controller chip. |
| | 574 | |
| | 575 | config ARCH_PNX4008 |
| | 576 | bool "Philips Nexperia PNX4008 Mobile" |
| | 577 | select CPU_ARM926T |
| | 578 | select HAVE_CLK |
| | 579 | select COMMON_CLKDEV |
| | 580 | help |
| | 581 | This enables support for Philips PNX4008 mobile platform. |
| | 582 | |
| | 583 | config ARCH_PXA |
| | 584 | bool "PXA2xx/PXA3xx-based" |
| | 585 | depends on MMU |
| | 586 | select ARCH_MTD_XIP |
| | 587 | select ARCH_HAS_CPUFREQ |
| | 588 | select GENERIC_GPIO |
| | 589 | select HAVE_CLK |
| | 590 | select COMMON_CLKDEV |
| | 591 | select ARCH_REQUIRE_GPIOLIB |
| | 592 | select GENERIC_TIME |
| | 593 | select GENERIC_CLOCKEVENTS |
| | 594 | select TICK_ONESHOT |
| | 595 | select PLAT_PXA |
| | 596 | help |
| | 597 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
| | 598 | |
| | 599 | config ARCH_MSM |
| | 600 | bool "Qualcomm MSM" |
| | 601 | select CPU_V6 |
| | 602 | select GENERIC_TIME |
| | 603 | select GENERIC_CLOCKEVENTS |
| | 604 | help |
| | 605 | Support for Qualcomm MSM7K based systems. This runs on the ARM11 |
| | 606 | apps processor of the MSM7K and depends on a shared memory |
| | 607 | interface to the ARM9 modem processor which runs the baseband stack |
| | 608 | and controls some vital subsystems (clock and power control, etc). |
| | 609 | |
| | 610 | config ARCH_SHMOBILE |
| | 611 | bool "Renesas SH-Mobile" |
| | 612 | help |
| | 613 | Support for Renesas's SH-Mobile ARM platforms |
| | 614 | |
| | 615 | config ARCH_RPC |
| | 616 | bool "RiscPC" |
| | 617 | select ARCH_ACORN |
| | 618 | select FIQ |
| | 619 | select TIMER_ACORN |
| | 620 | select ARCH_MAY_HAVE_PC_FDC |
| | 621 | select HAVE_PATA_PLATFORM |
| | 622 | select ISA_DMA_API |
| | 623 | select NO_IOPORT |
| | 624 | select ARCH_SPARSEMEM_ENABLE |
| | 625 | help |
| | 626 | On the Acorn Risc-PC, Linux can support the internal IDE disk and |
| | 627 | CD-ROM interface, serial and parallel port, and the floppy drive. |
| | 628 | |
| | 629 | config ARCH_SA1100 |
| | 630 | bool "SA1100-based" |
| | 631 | select CPU_SA1100 |
| | 632 | select ISA |
| | 633 | select ARCH_SPARSEMEM_ENABLE |
| | 634 | select ARCH_MTD_XIP |
| | 635 | select ARCH_HAS_CPUFREQ |
| | 636 | select CPU_FREQ |
| | 637 | select GENERIC_GPIO |
| | 638 | select GENERIC_TIME |
| | 639 | select GENERIC_CLOCKEVENTS |
| | 640 | select HAVE_CLK |
| | 641 | select TICK_ONESHOT |
| | 642 | select ARCH_REQUIRE_GPIOLIB |
| | 643 | help |
| | 644 | Support for StrongARM 11x0 based boards. |
| | 645 | |
| | 646 | config ARCH_S3C2410 |
| | 647 | bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443" |
| | 648 | select GENERIC_GPIO |
| | 649 | select ARCH_HAS_CPUFREQ |
| | 650 | select HAVE_CLK |
| | 651 | help |
| | 652 | Samsung S3C2410X CPU based systems, such as the Simtec Electronics |
| | 653 | BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or |
| | 654 | the Samsung SMDK2410 development board (and derivatives). |
| | 655 | |
| | 656 | config ARCH_S3C64XX |
| | 657 | bool "Samsung S3C64XX" |
| | 658 | select PLAT_SAMSUNG |
| | 659 | select CPU_V6 |
| | 660 | select GENERIC_GPIO |
| | 661 | select ARM_VIC |
| | 662 | select HAVE_CLK |
| | 663 | select NO_IOPORT |
| | 664 | select ARCH_HAS_CPUFREQ |
| | 665 | select ARCH_REQUIRE_GPIOLIB |
| | 666 | select SAMSUNG_CLKSRC |
| | 667 | select SAMSUNG_IRQ_VIC_TIMER |
| | 668 | select SAMSUNG_IRQ_UART |
| | 669 | select S3C_GPIO_TRACK |
| | 670 | select S3C_GPIO_PULL_UPDOWN |
| | 671 | select S3C_GPIO_CFG_S3C24XX |
| | 672 | select S3C_GPIO_CFG_S3C64XX |
| | 673 | select S3C_DEV_NAND |
| | 674 | select USB_ARCH_HAS_OHCI |
| | 675 | select SAMSUNG_GPIOLIB_4BIT |
| | 676 | help |
| | 677 | Samsung S3C64XX series based systems |
| | 678 | |
| | 679 | config ARCH_S5P6440 |
| | 680 | bool "Samsung S5P6440" |
| | 681 | select CPU_V6 |
| | 682 | select GENERIC_GPIO |
| | 683 | select HAVE_CLK |
| | 684 | help |
| | 685 | Samsung S5P6440 CPU based systems |
| | 686 | |
| | 687 | config ARCH_S5P6442 |
| | 688 | bool "Samsung S5P6442" |
| | 689 | select CPU_V6 |
| | 690 | select GENERIC_GPIO |
| | 691 | select HAVE_CLK |
| | 692 | help |
| | 693 | Samsung S5P6442 CPU based systems |
| | 694 | |
| | 695 | config ARCH_S5PC1XX |
| | 696 | bool "Samsung S5PC1XX" |
| | 697 | select GENERIC_GPIO |
| | 698 | select HAVE_CLK |
| | 699 | select CPU_V7 |
| | 700 | select ARM_L1_CACHE_SHIFT_6 |
| | 701 | help |
| | 702 | Samsung S5PC1XX series based systems |
| | 703 | |
| | 704 | config ARCH_S5PV210 |
| | 705 | bool "Samsung S5PV210/S5PC110" |
| | 706 | select CPU_V7 |
| | 707 | select GENERIC_GPIO |
| | 708 | select HAVE_CLK |
| | 709 | select ARM_L1_CACHE_SHIFT_6 |
| | 710 | help |
| | 711 | Samsung S5PV210/S5PC110 series based systems |
| | 712 | |
| | 713 | config ARCH_SHARK |
| | 714 | bool "Shark" |
| | 715 | select CPU_SA110 |
| | 716 | select ISA |
| | 717 | select ISA_DMA |
| | 718 | select ZONE_DMA |
| | 719 | select PCI |
| | 720 | help |
| | 721 | Support for the StrongARM based Digital DNARD machine, also known |
| | 722 | as "Shark" (<http://www.shark-linux.de/shark.html>). |
| | 723 | |
| | 724 | config ARCH_LH7A40X |
| | 725 | bool "Sharp LH7A40X" |
| | 726 | select CPU_ARM922T |
| | 727 | select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM |
| | 728 | select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM |
| | 729 | help |
| | 730 | Say Y here for systems based on one of the Sharp LH7A40X |
| | 731 | System on a Chip processors. These CPUs include an ARM922T |
| | 732 | core with a wide array of integrated devices for |
| | 733 | hand-held and low-power applications. |
| | 734 | |
| | 735 | config ARCH_U300 |
| | 736 | bool "ST-Ericsson U300 Series" |
| | 737 | depends on MMU |
| | 738 | select CPU_ARM926T |
| | 739 | select HAVE_TCM |
| | 740 | select ARM_AMBA |
| | 741 | select ARM_VIC |
| | 742 | select GENERIC_TIME |
| | 743 | select GENERIC_CLOCKEVENTS |
| | 744 | select HAVE_CLK |
| | 745 | select COMMON_CLKDEV |
| | 746 | select GENERIC_GPIO |
| | 747 | help |
| | 748 | Support for ST-Ericsson U300 series mobile platforms. |
| | 749 | |
| | 750 | config ARCH_DAVINCI |
| | 751 | bool "TI DaVinci" |
| | 752 | select CPU_ARM926T |
| | 753 | select GENERIC_TIME |
| | 754 | select GENERIC_CLOCKEVENTS |
| | 755 | select GENERIC_GPIO |
| | 756 | select ARCH_REQUIRE_GPIOLIB |
| | 757 | select HAVE_CLK |
| | 758 | select ZONE_DMA |
| | 759 | select HAVE_IDE |
| | 760 | select COMMON_CLKDEV |
| | 761 | select GENERIC_ALLOCATOR |
| | 762 | select ARCH_HAS_HOLES_MEMORYMODEL |
| | 763 | help |
| | 764 | Support for TI's DaVinci platform. |
| | 765 | |
| | 766 | config ARCH_OMAP |
| | 767 | bool "TI OMAP" |
| | 768 | select GENERIC_GPIO |
| | 769 | select HAVE_CLK |
| | 770 | select ARCH_REQUIRE_GPIOLIB |
| | 771 | select ARCH_HAS_CPUFREQ |
| | 772 | select GENERIC_TIME |
| | 773 | select GENERIC_CLOCKEVENTS |
| | 774 | select ARCH_HAS_HOLES_MEMORYMODEL |
| | 775 | help |
| | 776 | Support for TI's OMAP platform (OMAP1 and OMAP2). |
| | 777 | |
| | 778 | config ARCH_BCMRING |
| | 779 | bool "Broadcom BCMRING" |
| | 780 | depends on MMU |
| | 781 | select CPU_V6 |
| | 782 | select ARM_AMBA |
| | 783 | select COMMON_CLKDEV |
| | 784 | select GENERIC_TIME |
| | 785 | select GENERIC_CLOCKEVENTS |
| | 786 | select ARCH_WANT_OPTIONAL_GPIOLIB |
| | 787 | help |
| | 788 | Support for Broadcom's BCMRing platform. |
| | 789 | |
| | 790 | config ARCH_U8500 |
| | 791 | bool "ST-Ericsson U8500 Series" |
| | 792 | select CPU_V7 |
| | 793 | select ARM_AMBA |
| | 794 | select GENERIC_TIME |
| | 795 | select GENERIC_CLOCKEVENTS |
| | 796 | select COMMON_CLKDEV |
| | 797 | help |
| | 798 | Support for ST-Ericsson's Ux500 architecture |
| | 799 | |
| | 800 | endchoice |
| | 801 | |
| | 802 | source "arch/arm/mach-aaec2000/Kconfig" |
| | 803 | |
| | 804 | source "arch/arm/mach-at91/Kconfig" |
| | 805 | |
| | 806 | source "arch/arm/mach-bcmring/Kconfig" |
| | 807 | |
| | 808 | source "arch/arm/mach-clps711x/Kconfig" |
| | 809 | |
| | 810 | source "arch/arm/mach-davinci/Kconfig" |
| | 811 | |
| | 812 | source "arch/arm/mach-dove/Kconfig" |
| | 813 | |
| | 814 | source "arch/arm/mach-ep93xx/Kconfig" |
| | 815 | |
| | 816 | source "arch/arm/mach-footbridge/Kconfig" |
| | 817 | |
| | 818 | source "arch/arm/mach-gemini/Kconfig" |
| | 819 | |
| | 820 | source "arch/arm/mach-h720x/Kconfig" |
| | 821 | |
| | 822 | source "arch/arm/mach-integrator/Kconfig" |
| | 823 | |
| | 824 | source "arch/arm/mach-iop32x/Kconfig" |
| | 825 | |
| | 826 | source "arch/arm/mach-iop33x/Kconfig" |
| | 827 | |
| | 828 | source "arch/arm/mach-iop13xx/Kconfig" |
| | 829 | |
| | 830 | source "arch/arm/mach-ixp4xx/Kconfig" |
| | 831 | |
| | 832 | source "arch/arm/mach-ixp2000/Kconfig" |
| | 833 | |
| | 834 | source "arch/arm/mach-ixp23xx/Kconfig" |
| | 835 | |
| | 836 | source "arch/arm/mach-kirkwood/Kconfig" |
| | 837 | |
| | 838 | source "arch/arm/mach-ks8695/Kconfig" |
| | 839 | |
| | 840 | source "arch/arm/mach-lh7a40x/Kconfig" |
| | 841 | |
| | 842 | source "arch/arm/mach-loki/Kconfig" |
| | 843 | |
| | 844 | source "arch/arm/mach-msm/Kconfig" |
| | 845 | |
| | 846 | source "arch/arm/mach-mv78xx0/Kconfig" |
| | 847 | |
| | 848 | source "arch/arm/plat-mxc/Kconfig" |
| | 849 | |
| | 850 | source "arch/arm/mach-netx/Kconfig" |
| | 851 | |
| | 852 | source "arch/arm/mach-nomadik/Kconfig" |
| | 853 | source "arch/arm/plat-nomadik/Kconfig" |
| | 854 | |
| | 855 | source "arch/arm/mach-ns9xxx/Kconfig" |
| | 856 | |
| | 857 | source "arch/arm/mach-nuc93x/Kconfig" |
| | 858 | |
| | 859 | source "arch/arm/plat-omap/Kconfig" |
| | 860 | |
| | 861 | source "arch/arm/mach-omap1/Kconfig" |
| | 862 | |
| | 863 | source "arch/arm/mach-omap2/Kconfig" |
| | 864 | |
| | 865 | source "arch/arm/mach-orion5x/Kconfig" |
| | 866 | |
| | 867 | source "arch/arm/mach-pxa/Kconfig" |
| | 868 | source "arch/arm/plat-pxa/Kconfig" |
| | 869 | |
| | 870 | source "arch/arm/mach-mmp/Kconfig" |
| | 871 | |
| | 872 | source "arch/arm/mach-realview/Kconfig" |
| | 873 | |
| | 874 | source "arch/arm/mach-sa1100/Kconfig" |
| | 875 | |
| | 876 | source "arch/arm/plat-samsung/Kconfig" |
| | 877 | source "arch/arm/plat-s3c24xx/Kconfig" |
| | 878 | source "arch/arm/plat-s5p/Kconfig" |
| | 879 | source "arch/arm/plat-s5pc1xx/Kconfig" |
| | 880 | |
| | 881 | if ARCH_S3C2410 |
| | 882 | source "arch/arm/mach-s3c2400/Kconfig" |
| | 883 | source "arch/arm/mach-s3c2410/Kconfig" |
| | 884 | source "arch/arm/mach-s3c2412/Kconfig" |
| | 885 | source "arch/arm/mach-s3c2440/Kconfig" |
| | 886 | source "arch/arm/mach-s3c2443/Kconfig" |
| | 887 | endif |
| | 888 | |
| | 889 | if ARCH_S3C64XX |
| | 890 | source "arch/arm/mach-s3c64xx/Kconfig" |
| | 891 | endif |
| | 892 | |
| | 893 | source "arch/arm/mach-s5p6440/Kconfig" |
| | 894 | |
| | 895 | source "arch/arm/mach-s5p6442/Kconfig" |
| | 896 | |
| | 897 | if ARCH_S5PC1XX |
| | 898 | source "arch/arm/mach-s5pc100/Kconfig" |
| | 899 | endif |
| | 900 | |
| | 901 | source "arch/arm/mach-s5pv210/Kconfig" |
| | 902 | |
| | 903 | source "arch/arm/mach-shmobile/Kconfig" |
| | 904 | |
| | 905 | source "arch/arm/plat-stmp3xxx/Kconfig" |
| | 906 | |
| | 907 | source "arch/arm/mach-u300/Kconfig" |
| | 908 | |
| | 909 | source "arch/arm/mach-ux500/Kconfig" |
| | 910 | |
| | 911 | source "arch/arm/mach-versatile/Kconfig" |
| | 912 | |
| | 913 | source "arch/arm/mach-w90x900/Kconfig" |
| | 914 | |
| | 915 | # Definitions to make life easier |
| | 916 | config ARCH_ACORN |
| | 917 | bool |
| | 918 | |
| | 919 | config PLAT_IOP |
| | 920 | bool |
| | 921 | select GENERIC_CLOCKEVENTS |
| | 922 | select GENERIC_TIME |
| | 923 | |
| | 924 | config PLAT_ORION |
| | 925 | bool |
| | 926 | |
| | 927 | config PLAT_PXA |
| | 928 | bool |
| | 929 | |
| | 930 | source arch/arm/mm/Kconfig |
| | 931 | |
| | 932 | config IWMMXT |
| | 933 | bool "Enable iWMMXt support" |
| | 934 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK |
| | 935 | default y if PXA27x || PXA3xx || ARCH_MMP |
| | 936 | help |
| | 937 | Enable support for iWMMXt context switching at run time if |
| | 938 | running on a CPU that supports it. |
| | 939 | |
| | 940 | # bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER |
| | 941 | config XSCALE_PMU |
| | 942 | bool |
| | 943 | depends on CPU_XSCALE && !XSCALE_PMU_TIMER |
| | 944 | default y |
| | 945 | |
| | 946 | config CPU_HAS_PMU |
| | 947 | depends on CPU_V6 || CPU_V7 || XSCALE_PMU |
| | 948 | default y |
| | 949 | bool |
| | 950 | |
| | 951 | if !MMU |
| | 952 | source "arch/arm/Kconfig-nommu" |
| | 953 | endif |
| | 954 | |
| | 955 | config ARM_ERRATA_411920 |
| | 956 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" |
| | 957 | depends on CPU_V6 && !SMP |
| | 958 | help |
| | 959 | Invalidation of the Instruction Cache operation can |
| | 960 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. |
| | 961 | It does not affect the MPCore. This option enables the ARM Ltd. |
| | 962 | recommended workaround. |
| | 963 | |
| | 964 | config ARM_ERRATA_430973 |
| | 965 | bool "ARM errata: Stale prediction on replaced interworking branch" |
| | 966 | depends on CPU_V7 |
| | 967 | help |
| | 968 | This option enables the workaround for the 430973 Cortex-A8 |
| | 969 | (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb |
| | 970 | interworking branch is replaced with another code sequence at the |
| | 971 | same virtual address, whether due to self-modifying code or virtual |
| | 972 | to physical address re-mapping, Cortex-A8 does not recover from the |
| | 973 | stale interworking branch prediction. This results in Cortex-A8 |
| | 974 | executing the new code sequence in the incorrect ARM or Thumb state. |
| | 975 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE |
| | 976 | and also flushes the branch target cache at every context switch. |
| | 977 | Note that setting specific bits in the ACTLR register may not be |
| | 978 | available in non-secure mode. |
| | 979 | |
| | 980 | config ARM_ERRATA_458693 |
| | 981 | bool "ARM errata: Processor deadlock when a false hazard is created" |
| | 982 | depends on CPU_V7 |
| | 983 | help |
| | 984 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) |
| | 985 | erratum. For very specific sequences of memory operations, it is |
| | 986 | possible for a hazard condition intended for a cache line to instead |
| | 987 | be incorrectly associated with a different cache line. This false |
| | 988 | hazard might then cause a processor deadlock. The workaround enables |
| | 989 | the L1 caching of the NEON accesses and disables the PLD instruction |
| | 990 | in the ACTLR register. Note that setting specific bits in the ACTLR |
| | 991 | register may not be available in non-secure mode. |
| | 992 | |
| | 993 | config ARM_ERRATA_460075 |
| | 994 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" |
| | 995 | depends on CPU_V7 |
| | 996 | help |
| | 997 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) |
| | 998 | erratum. Any asynchronous access to the L2 cache may encounter a |
| | 999 | situation in which recent store transactions to the L2 cache are lost |
| | 1000 | and overwritten with stale memory contents from external memory. The |
| | 1001 | workaround disables the write-allocate mode for the L2 cache via the |
| | 1002 | ACTLR register. Note that setting specific bits in the ACTLR register |
| | 1003 | may not be available in non-secure mode. |
| | 1004 | |
| | 1005 | config PL310_ERRATA_588369 |
| | 1006 | bool "Clean & Invalidate maintenance operations do not invalidate clean lines" |
| | 1007 | depends on CACHE_L2X0 && ARCH_OMAP4 |
| | 1008 | help |
| | 1009 | The PL310 L2 cache controller implements three types of Clean & |
| | 1010 | Invalidate maintenance operations: by Physical Address |
| | 1011 | (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). |
| | 1012 | They are architecturally defined to behave as the execution of a |
| | 1013 | clean operation followed immediately by an invalidate operation, |
| | 1014 | both performing to the same memory location. This functionality |
| | 1015 | is not correctly implemented in PL310 as clean lines are not |
| | 1016 | invalidated as a result of these operations. Note that this errata |
| | 1017 | uses Texas Instrument's secure monitor api. |
| | 1018 | endmenu |
| | 1019 | |
| | 1020 | source "arch/arm/common/Kconfig" |
| | 1021 | |
| | 1022 | config FORCE_MAX_ZONEORDER |
| | 1023 | int |
| | 1024 | depends on SA1111 |
| | 1025 | default "9" |
| | 1026 | |
| | 1027 | menu "Bus support" |
| | 1028 | |
| | 1029 | config ARM_AMBA |
| | 1030 | bool |
| | 1031 | |
| | 1032 | config ISA |
| | 1033 | bool |
| | 1034 | help |
| | 1035 | Find out whether you have ISA slots on your motherboard. ISA is the |
| | 1036 | name of a bus system, i.e. the way the CPU talks to the other stuff |
| | 1037 | inside your box. Other bus systems are PCI, EISA, MicroChannel |
| | 1038 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; |
| | 1039 | newer boards don't support it. If you have ISA, say Y, otherwise N. |
| | 1040 | |
| | 1041 | # Select ISA DMA controller support |
| | 1042 | config ISA_DMA |
| | 1043 | bool |
| | 1044 | select ISA_DMA_API |
| | 1045 | |
| | 1046 | # Select ISA DMA interface |
| | 1047 | config ISA_DMA_API |
| | 1048 | bool |
| | 1049 | |
| | 1050 | config PCI |
| | 1051 | bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE |
| | 1052 | help |
| | 1053 | Find out whether you have a PCI motherboard. PCI is the name of a |
| | 1054 | bus system, i.e. the way the CPU talks to the other stuff inside |
| | 1055 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or |
| | 1056 | VESA. If you have PCI, say Y, otherwise N. |
| | 1057 | |
| | 1058 | config PCI_SYSCALL |
| | 1059 | def_bool PCI |
| | 1060 | |
| | 1061 | # Select the host bridge type |
| | 1062 | config PCI_HOST_VIA82C505 |
| | 1063 | bool |
| | 1064 | depends on PCI && ARCH_SHARK |
| | 1065 | default y |
| | 1066 | |
| | 1067 | config PCI_HOST_ITE8152 |
| | 1068 | bool |
| | 1069 | depends on PCI && MACH_ARMCORE |
| | 1070 | default y |
| | 1071 | select DMABOUNCE |
| | 1072 | |
| | 1073 | source "drivers/pci/Kconfig" |
| | 1074 | |
| | 1075 | source "drivers/pcmcia/Kconfig" |
| | 1076 | |
| | 1077 | endmenu |
| | 1078 | |
| | 1079 | menu "Kernel Features" |
| | 1080 | |
| | 1081 | source "kernel/time/Kconfig" |
| | 1082 | |
| | 1083 | config SMP |
| | 1084 | bool "Symmetric Multi-Processing (EXPERIMENTAL)" |
| | 1085 | depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ |
| | 1086 | MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) |
| | 1087 | depends on GENERIC_CLOCKEVENTS |
| | 1088 | select USE_GENERIC_SMP_HELPERS |
| | 1089 | select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) |
| | 1090 | help |
| | 1091 | This enables support for systems with more than one CPU. If you have |
| | 1092 | a system with only one CPU, like most personal computers, say N. If |
| | 1093 | you have a system with more than one CPU, say Y. |
| | 1094 | |
| | 1095 | If you say N here, the kernel will run on single and multiprocessor |
| | 1096 | machines, but will use only one CPU of a multiprocessor machine. If |
| | 1097 | you say Y here, the kernel will run on many, but not all, single |
| | 1098 | processor machines. On a single processor machine, the kernel will |
| | 1099 | run faster if you say N here. |
| | 1100 | |
| | 1101 | See also <file:Documentation/i386/IO-APIC.txt>, |
| | 1102 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
| | 1103 | <http://www.linuxdoc.org/docs.html#howto>. |
| | 1104 | |
| | 1105 | If you don't know what to do here, say N. |
| | 1106 | |
| | 1107 | config HAVE_ARM_SCU |
| | 1108 | bool |
| | 1109 | depends on SMP |
| | 1110 | help |
| | 1111 | This option enables support for the ARM system coherency unit |
| | 1112 | |
| | 1113 | config HAVE_ARM_TWD |
| | 1114 | bool |
| | 1115 | depends on SMP |
| | 1116 | help |
| | 1117 | This options enables support for the ARM timer and watchdog unit |
| | 1118 | |
| | 1119 | choice |
| | 1120 | prompt "Memory split" |
| | 1121 | default VMSPLIT_3G |
| | 1122 | help |
| | 1123 | Select the desired split between kernel and user memory. |
| | 1124 | |
| | 1125 | If you are not absolutely sure what you are doing, leave this |
| | 1126 | option alone! |
| | 1127 | |
| | 1128 | config VMSPLIT_3G |
| | 1129 | bool "3G/1G user/kernel split" |
| | 1130 | config VMSPLIT_2G |
| | 1131 | bool "2G/2G user/kernel split" |
| | 1132 | config VMSPLIT_1G |
| | 1133 | bool "1G/3G user/kernel split" |
| | 1134 | endchoice |
| | 1135 | |
| | 1136 | config PAGE_OFFSET |
| | 1137 | hex |
| | 1138 | default 0x40000000 if VMSPLIT_1G |
| | 1139 | default 0x80000000 if VMSPLIT_2G |
| | 1140 | default 0xC0000000 |
| | 1141 | |
| | 1142 | config NR_CPUS |
| | 1143 | int "Maximum number of CPUs (2-32)" |
| | 1144 | range 2 32 |
| | 1145 | depends on SMP |
| | 1146 | default "4" |
| | 1147 | |
| | 1148 | config HOTPLUG_CPU |
| | 1149 | bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" |
| | 1150 | depends on SMP && HOTPLUG && EXPERIMENTAL |
| | 1151 | help |
| | 1152 | Say Y here to experiment with turning CPUs off and on. CPUs |
| | 1153 | can be controlled through /sys/devices/system/cpu. |
| | 1154 | |
| | 1155 | config LOCAL_TIMERS |
| | 1156 | bool "Use local timer interrupts" |
| | 1157 | depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ |
| | 1158 | REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) |
| | 1159 | default y |
| | 1160 | select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) |
| | 1161 | help |
| | 1162 | Enable support for local timers on SMP platforms, rather then the |
| | 1163 | legacy IPI broadcast method. Local timers allows the system |
| | 1164 | accounting to be spread across the timer interval, preventing a |
| | 1165 | "thundering herd" at every timer tick. |
| | 1166 | |
| | 1167 | source kernel/Kconfig.preempt |
| | 1168 | |
| | 1169 | config HZ |
| | 1170 | int |
| | 1171 | default 128 if ARCH_L7200 |
| | 1172 | default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210 |
| | 1173 | default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER |
| | 1174 | default AT91_TIMER_HZ if ARCH_AT91 |
| | 1175 | default 100 |
| | 1176 | |
| | 1177 | config THUMB2_KERNEL |
| | 1178 | bool "Compile the kernel in Thumb-2 mode" |
| | 1179 | depends on CPU_V7 && EXPERIMENTAL |
| | 1180 | select AEABI |
| | 1181 | select ARM_ASM_UNIFIED |
| | 1182 | help |
| | 1183 | By enabling this option, the kernel will be compiled in |
| | 1184 | Thumb-2 mode. A compiler/assembler that understand the unified |
| | 1185 | ARM-Thumb syntax is needed. |
| | 1186 | |
| | 1187 | If unsure, say N. |
| | 1188 | |
| | 1189 | config ARM_ASM_UNIFIED |
| | 1190 | bool |
| | 1191 | |
| | 1192 | config AEABI |
| | 1193 | bool "Use the ARM EABI to compile the kernel" |
| | 1194 | help |
| | 1195 | This option allows for the kernel to be compiled using the latest |
| | 1196 | ARM ABI (aka EABI). This is only useful if you are using a user |
| | 1197 | space environment that is also compiled with EABI. |
| | 1198 | |
| | 1199 | Since there are major incompatibilities between the legacy ABI and |
| | 1200 | EABI, especially with regard to structure member alignment, this |
| | 1201 | option also changes the kernel syscall calling convention to |
| | 1202 | disambiguate both ABIs and allow for backward compatibility support |
| | 1203 | (selected with CONFIG_OABI_COMPAT). |
| | 1204 | |
| | 1205 | To use this you need GCC version 4.0.0 or later. |
| | 1206 | |
| | 1207 | config OABI_COMPAT |
| | 1208 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
| | 1209 | depends on AEABI && EXPERIMENTAL |
| | 1210 | default y |
| | 1211 | help |
| | 1212 | This option preserves the old syscall interface along with the |
| | 1213 | new (ARM EABI) one. It also provides a compatibility layer to |
| | 1214 | intercept syscalls that have structure arguments which layout |
| | 1215 | in memory differs between the legacy ABI and the new ARM EABI |
| | 1216 | (only for non "thumb" binaries). This option adds a tiny |
| | 1217 | overhead to all syscalls and produces a slightly larger kernel. |
| | 1218 | If you know you'll be using only pure EABI user space then you |
| | 1219 | can say N here. If this option is not selected and you attempt |
| | 1220 | to execute a legacy ABI binary then the result will be |
| | 1221 | UNPREDICTABLE (in fact it can be predicted that it won't work |
| | 1222 | at all). If in doubt say Y. |
| | 1223 | |
| | 1224 | config ARCH_HAS_HOLES_MEMORYMODEL |
| | 1225 | bool |
| | 1226 | |
| | 1227 | # Discontigmem is deprecated |
| | 1228 | config ARCH_DISCONTIGMEM_ENABLE |
| | 1229 | bool |
| | 1230 | |
| | 1231 | config ARCH_SPARSEMEM_ENABLE |
| | 1232 | bool |
| | 1233 | |
| | 1234 | config ARCH_SPARSEMEM_DEFAULT |
| | 1235 | def_bool ARCH_SPARSEMEM_ENABLE |
| | 1236 | |
| | 1237 | config ARCH_SELECT_MEMORY_MODEL |
| | 1238 | def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE |
| | 1239 | |
| | 1240 | config NODES_SHIFT |
| | 1241 | int |
| | 1242 | default "4" if ARCH_LH7A40X |
| | 1243 | default "2" |
| | 1244 | depends on NEED_MULTIPLE_NODES |
| | 1245 | |
| | 1246 | config HIGHMEM |
| | 1247 | bool "High Memory Support (EXPERIMENTAL)" |
| | 1248 | depends on MMU && EXPERIMENTAL |
| | 1249 | help |
| | 1250 | The address space of ARM processors is only 4 Gigabytes large |
| | 1251 | and it has to accommodate user address space, kernel address |
| | 1252 | space as well as some memory mapped IO. That means that, if you |
| | 1253 | have a large amount of physical memory and/or IO, not all of the |
| | 1254 | memory can be "permanently mapped" by the kernel. The physical |
| | 1255 | memory that is not permanently mapped is called "high memory". |
| | 1256 | |
| | 1257 | Depending on the selected kernel/user memory split, minimum |
| | 1258 | vmalloc space and actual amount of RAM, you may not need this |
| | 1259 | option which should result in a slightly faster kernel. |
| | 1260 | |
| | 1261 | If unsure, say n. |
| | 1262 | |
| | 1263 | config HIGHPTE |
| | 1264 | bool "Allocate 2nd-level pagetables from highmem" |
| | 1265 | depends on HIGHMEM |
| | 1266 | depends on !OUTER_CACHE |
| | 1267 | |
| | 1268 | config HW_PERF_EVENTS |
| | 1269 | bool "Enable hardware performance counter support for perf events" |
| | 1270 | depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7) |
| | 1271 | default y |
| | 1272 | help |
| | 1273 | Enable hardware performance counter support for perf events. If |
| | 1274 | disabled, perf events will use software events only. |
| | 1275 | |
| | 1276 | source "mm/Kconfig" |
| | 1277 | |
| | 1278 | config LEDS |
| | 1279 | bool "Timer and CPU usage LEDs" |
| | 1280 | depends on ARCH_CDB89712 || ARCH_EBSA110 || \ |
| | 1281 | ARCH_EBSA285 || ARCH_INTEGRATOR || \ |
| | 1282 | ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ |
| | 1283 | ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ |
| | 1284 | ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ |
| | 1285 | ARCH_AT91 || ARCH_DAVINCI || \ |
| | 1286 | ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW |
| | 1287 | help |
| | 1288 | If you say Y here, the LEDs on your machine will be used |
| | 1289 | to provide useful information about your current system status. |
| | 1290 | |
| | 1291 | If you are compiling a kernel for a NetWinder or EBSA-285, you will |
| | 1292 | be able to select which LEDs are active using the options below. If |
| | 1293 | you are compiling a kernel for the EBSA-110 or the LART however, the |
| | 1294 | red LED will simply flash regularly to indicate that the system is |
| | 1295 | still functional. It is safe to say Y here if you have a CATS |
| | 1296 | system, but the driver will do nothing. |
| | 1297 | |
| | 1298 | config LEDS_TIMER |
| | 1299 | bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ |
| | 1300 | OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
| | 1301 | || MACH_OMAP_PERSEUS2 |
| | 1302 | depends on LEDS |
| | 1303 | depends on !GENERIC_CLOCKEVENTS |
| | 1304 | default y if ARCH_EBSA110 |
| | 1305 | help |
| | 1306 | If you say Y here, one of the system LEDs (the green one on the |
| | 1307 | NetWinder, the amber one on the EBSA285, or the red one on the LART) |
| | 1308 | will flash regularly to indicate that the system is still |
| | 1309 | operational. This is mainly useful to kernel hackers who are |
| | 1310 | debugging unstable kernels. |
| | 1311 | |
| | 1312 | The LART uses the same LED for both Timer LED and CPU usage LED |
| | 1313 | functions. You may choose to use both, but the Timer LED function |
| | 1314 | will overrule the CPU usage LED. |
| | 1315 | |
| | 1316 | config LEDS_CPU |
| | 1317 | bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ |
| | 1318 | !ARCH_OMAP) \ |
| | 1319 | || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ |
| | 1320 | || MACH_OMAP_PERSEUS2 |
| | 1321 | depends on LEDS |
| | 1322 | help |
| | 1323 | If you say Y here, the red LED will be used to give a good real |
| | 1324 | time indication of CPU usage, by lighting whenever the idle task |
| | 1325 | is not currently executing. |
| | 1326 | |
| | 1327 | The LART uses the same LED for both Timer LED and CPU usage LED |
| | 1328 | functions. You may choose to use both, but the Timer LED function |
| | 1329 | will overrule the CPU usage LED. |
| | 1330 | |
| | 1331 | config ALIGNMENT_TRAP |
| | 1332 | bool |
| | 1333 | depends on CPU_CP15_MMU |
| | 1334 | default y if !ARCH_EBSA110 |
| | 1335 | select HAVE_PROC_CPU if PROC_FS |
| | 1336 | help |
| | 1337 | ARM processors cannot fetch/store information which is not |
| | 1338 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
| | 1339 | address divisible by 4. On 32-bit ARM processors, these non-aligned |
| | 1340 | fetch/store instructions will be emulated in software if you say |
| | 1341 | here, which has a severe performance impact. This is necessary for |
| | 1342 | correct operation of some network protocols. With an IP-only |
| | 1343 | configuration it is safe to say N, otherwise say Y. |
| | 1344 | |
| | 1345 | config UACCESS_WITH_MEMCPY |
| | 1346 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" |
| | 1347 | depends on MMU && EXPERIMENTAL |
| | 1348 | default y if CPU_FEROCEON |
| | 1349 | help |
| | 1350 | Implement faster copy_to_user and clear_user methods for CPU |
| | 1351 | cores where a 8-word STM instruction give significantly higher |
| | 1352 | memory write throughput than a sequence of individual 32bit stores. |
| | 1353 | |
| | 1354 | A possible side effect is a slight increase in scheduling latency |
| | 1355 | between threads sharing the same address space if they invoke |
| | 1356 | such copy operations with large buffers. |
| | 1357 | |
| | 1358 | However, if the CPU data cache is using a write-allocate mode, |
| | 1359 | this option is unlikely to provide any performance gain. |
| | 1360 | |
| | 1361 | endmenu |
| | 1362 | |
| | 1363 | menu "Boot options" |
| | 1364 | |
| | 1365 | # Compressed boot loader in ROM. Yes, we really want to ask about |
| | 1366 | # TEXT and BSS so we preserve their values in the config files. |
| | 1367 | config ZBOOT_ROM_TEXT |
| | 1368 | hex "Compressed ROM boot loader base address" |
| | 1369 | default "0" |
| | 1370 | help |
| | 1371 | The physical address at which the ROM-able zImage is to be |
| | 1372 | placed in the target. Platforms which normally make use of |
| | 1373 | ROM-able zImage formats normally set this to a suitable |
| | 1374 | value in their defconfig file. |
| | 1375 | |
| | 1376 | If ZBOOT_ROM is not enabled, this has no effect. |
| | 1377 | |
| | 1378 | config ZBOOT_ROM_BSS |
| | 1379 | hex "Compressed ROM boot loader BSS address" |
| | 1380 | default "0" |
| | 1381 | help |
| | 1382 | The base address of an area of read/write memory in the target |
| | 1383 | for the ROM-able zImage which must be available while the |
| | 1384 | decompressor is running. It must be large enough to hold the |
| | 1385 | entire decompressed kernel plus an additional 128 KiB. |
| | 1386 | Platforms which normally make use of ROM-able zImage formats |
| | 1387 | normally set this to a suitable value in their defconfig file. |
| | 1388 | |
| | 1389 | If ZBOOT_ROM is not enabled, this has no effect. |
| | 1390 | |
| | 1391 | config ZBOOT_ROM |
| | 1392 | bool "Compressed boot loader in ROM/flash" |
| | 1393 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS |
| | 1394 | help |
| | 1395 | Say Y here if you intend to execute your compressed kernel image |
| | 1396 | (zImage) directly from ROM or flash. If unsure, say N. |
| | 1397 | |
| | 1398 | config CMDLINE |
| | 1399 | string "Default kernel command string" |
| | 1400 | default "" |
| | 1401 | help |
| | 1402 | On some architectures (EBSA110 and CATS), there is currently no way |
| | 1403 | for the boot loader to pass arguments to the kernel. For these |
| | 1404 | architectures, you should supply some command-line options at build |
| | 1405 | time by entering them here. As a minimum, you should specify the |
| | 1406 | memory size and the root device (e.g., mem=64M root=/dev/nfs). |
| | 1407 | |
| | 1408 | config XIP_KERNEL |
| | 1409 | bool "Kernel Execute-In-Place from ROM" |
| | 1410 | depends on !ZBOOT_ROM |
| | 1411 | help |
| | 1412 | Execute-In-Place allows the kernel to run from non-volatile storage |
| | 1413 | directly addressable by the CPU, such as NOR flash. This saves RAM |
| | 1414 | space since the text section of the kernel is not loaded from flash |
| | 1415 | to RAM. Read-write sections, such as the data section and stack, |
| | 1416 | are still copied to RAM. The XIP kernel is not compressed since |
| | 1417 | it has to run directly from flash, so it will take more space to |
| | 1418 | store it. The flash address used to link the kernel object files, |
| | 1419 | and for storing it, is configuration dependent. Therefore, if you |
| | 1420 | say Y here, you must know the proper physical address where to |
| | 1421 | store the kernel image depending on your own flash memory usage. |
| | 1422 | |
| | 1423 | Also note that the make target becomes "make xipImage" rather than |
| | 1424 | "make zImage" or "make Image". The final kernel binary to put in |
| | 1425 | ROM memory will be arch/arm/boot/xipImage. |
| | 1426 | |
| | 1427 | If unsure, say N. |
| | 1428 | |
| | 1429 | config XIP_PHYS_ADDR |
| | 1430 | hex "XIP Kernel Physical Location" |
| | 1431 | depends on XIP_KERNEL |
| | 1432 | default "0x00080000" |
| | 1433 | help |
| | 1434 | This is the physical address in your flash memory the kernel will |
| | 1435 | be linked for and stored to. This address is dependent on your |
| | 1436 | own flash usage. |
| | 1437 | |
| | 1438 | config KEXEC |
| | 1439 | bool "Kexec system call (EXPERIMENTAL)" |
| | 1440 | depends on EXPERIMENTAL |
| | 1441 | help |
| | 1442 | kexec is a system call that implements the ability to shutdown your |
| | 1443 | current kernel, and to start another kernel. It is like a reboot |
| | 1444 | but it is independent of the system firmware. And like a reboot |
| | 1445 | you can start any kernel with it, not just Linux. |
| | 1446 | |
| | 1447 | It is an ongoing process to be certain the hardware in a machine |
| | 1448 | is properly shutdown, so do not be surprised if this code does not |
| | 1449 | initially work for you. It may help to enable device hotplugging |
| | 1450 | support. |
| | 1451 | |
| | 1452 | config ATAGS_PROC |
| | 1453 | bool "Export atags in procfs" |
| | 1454 | depends on KEXEC |
| | 1455 | default y |
| | 1456 | help |
| | 1457 | Should the atags used to boot the kernel be exported in an "atags" |
| | 1458 | file in procfs. Useful with kexec. |
| | 1459 | |
| | 1460 | endmenu |
| | 1461 | |
| | 1462 | menu "CPU Power Management" |
| | 1463 | |
| | 1464 | if ARCH_HAS_CPUFREQ |
| | 1465 | |
| | 1466 | source "drivers/cpufreq/Kconfig" |
| | 1467 | |
| | 1468 | config CPU_FREQ_SA1100 |
| | 1469 | bool |
| | 1470 | |
| | 1471 | config CPU_FREQ_SA1110 |
| | 1472 | bool |
| | 1473 | |
| | 1474 | config CPU_FREQ_INTEGRATOR |
| | 1475 | tristate "CPUfreq driver for ARM Integrator CPUs" |
| | 1476 | depends on ARCH_INTEGRATOR && CPU_FREQ |
| | 1477 | default y |
| | 1478 | help |
| | 1479 | This enables the CPUfreq driver for ARM Integrator CPUs. |
| | 1480 | |
| | 1481 | For details, take a look at <file:Documentation/cpu-freq>. |
| | 1482 | |
| | 1483 | If in doubt, say Y. |
| | 1484 | |
| | 1485 | config CPU_FREQ_PXA |
| | 1486 | bool |
| | 1487 | depends on CPU_FREQ && ARCH_PXA && PXA25x |
| | 1488 | default y |
| | 1489 | select CPU_FREQ_DEFAULT_GOV_USERSPACE |
| | 1490 | |
| | 1491 | config CPU_FREQ_S3C64XX |
| | 1492 | bool "CPUfreq support for Samsung S3C64XX CPUs" |
| | 1493 | depends on CPU_FREQ && CPU_S3C6410 |
| | 1494 | |
| | 1495 | config CPU_FREQ_S3C |
| | 1496 | bool |
| | 1497 | help |
| | 1498 | Internal configuration node for common cpufreq on Samsung SoC |
| | 1499 | |
| | 1500 | config CPU_FREQ_S3C24XX |
| | 1501 | bool "CPUfreq driver for Samsung S3C24XX series CPUs" |
| | 1502 | depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL |
| | 1503 | select CPU_FREQ_S3C |
| | 1504 | help |
| | 1505 | This enables the CPUfreq driver for the Samsung S3C24XX family |
| | 1506 | of CPUs. |
| | 1507 | |
| | 1508 | For details, take a look at <file:Documentation/cpu-freq>. |
| | 1509 | |
| | 1510 | If in doubt, say N. |
| | 1511 | |
| | 1512 | config CPU_FREQ_S3C24XX_PLL |
| | 1513 | bool "Support CPUfreq changing of PLL frequency" |
| | 1514 | depends on CPU_FREQ_S3C24XX && EXPERIMENTAL |
| | 1515 | help |
| | 1516 | Compile in support for changing the PLL frequency from the |
| | 1517 | S3C24XX series CPUfreq driver. The PLL takes time to settle |
| | 1518 | after a frequency change, so by default it is not enabled. |
| | 1519 | |
| | 1520 | This also means that the PLL tables for the selected CPU(s) will |
| | 1521 | be built which may increase the size of the kernel image. |
| | 1522 | |
| | 1523 | config CPU_FREQ_S3C24XX_DEBUG |
| | 1524 | bool "Debug CPUfreq Samsung driver core" |
| | 1525 | depends on CPU_FREQ_S3C24XX |
| | 1526 | help |
| | 1527 | Enable s3c_freq_dbg for the Samsung S3C CPUfreq core |
| | 1528 | |
| | 1529 | config CPU_FREQ_S3C24XX_IODEBUG |
| | 1530 | bool "Debug CPUfreq Samsung driver IO timing" |
| | 1531 | depends on CPU_FREQ_S3C24XX |
| | 1532 | help |
| | 1533 | Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core |
| | 1534 | |
| | 1535 | config CPU_FREQ_S3C24XX_DEBUGFS |
| | 1536 | bool "Export debugfs for CPUFreq" |
| | 1537 | depends on CPU_FREQ_S3C24XX && DEBUG_FS |
| | 1538 | help |
| | 1539 | Export status information via debugfs. |
| | 1540 | |
| | 1541 | endif |
| | 1542 | |
| | 1543 | source "drivers/cpuidle/Kconfig" |
| | 1544 | |
| | 1545 | endmenu |
| | 1546 | |
| | 1547 | menu "Floating point emulation" |
| | 1548 | |
| | 1549 | comment "At least one emulation must be selected" |
| | 1550 | |
| | 1551 | config FPE_NWFPE |
| | 1552 | bool "NWFPE math emulation" |
| | 1553 | depends on !AEABI || OABI_COMPAT |
| | 1554 | ---help--- |
| | 1555 | Say Y to include the NWFPE floating point emulator in the kernel. |
| | 1556 | This is necessary to run most binaries. Linux does not currently |
| | 1557 | support floating point hardware so you need to say Y here even if |
| | 1558 | your machine has an FPA or floating point co-processor podule. |
| | 1559 | |
| | 1560 | You may say N here if you are going to load the Acorn FPEmulator |
| | 1561 | early in the bootup. |
| | 1562 | |
| | 1563 | config FPE_NWFPE_XP |
| | 1564 | bool "Support extended precision" |
| | 1565 | depends on FPE_NWFPE |
| | 1566 | help |
| | 1567 | Say Y to include 80-bit support in the kernel floating-point |
| | 1568 | emulator. Otherwise, only 32 and 64-bit support is compiled in. |
| | 1569 | Note that gcc does not generate 80-bit operations by default, |
| | 1570 | so in most cases this option only enlarges the size of the |
| | 1571 | floating point emulator without any good reason. |
| | 1572 | |
| | 1573 | You almost surely want to say N here. |
| | 1574 | |
| | 1575 | config FPE_FASTFPE |
| | 1576 | bool "FastFPE math emulation (EXPERIMENTAL)" |
| | 1577 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL |
| | 1578 | ---help--- |
| | 1579 | Say Y here to include the FAST floating point emulator in the kernel. |
| | 1580 | This is an experimental much faster emulator which now also has full |
| | 1581 | precision for the mantissa. It does not support any exceptions. |
| | 1582 | It is very simple, and approximately 3-6 times faster than NWFPE. |
| | 1583 | |
| | 1584 | It should be sufficient for most programs. It may be not suitable |
| | 1585 | for scientific calculations, but you have to check this for yourself. |
| | 1586 | If you do not feel you need a faster FP emulation you should better |
| | 1587 | choose NWFPE. |
| | 1588 | |
| | 1589 | config VFP |
| | 1590 | bool "VFP-format floating point maths" |
| | 1591 | depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
| | 1592 | help |
| | 1593 | Say Y to include VFP support code in the kernel. This is needed |
| | 1594 | if your hardware includes a VFP unit. |
| | 1595 | |
| | 1596 | Please see <file:Documentation/arm/VFP/release-notes.txt> for |
| | 1597 | release notes and additional status information. |
| | 1598 | |
| | 1599 | Say N if your target does not have VFP hardware. |
| | 1600 | |
| | 1601 | config VFPv3 |
| | 1602 | bool |
| | 1603 | depends on VFP |
| | 1604 | default y if CPU_V7 |
| | 1605 | |
| | 1606 | config NEON |
| | 1607 | bool "Advanced SIMD (NEON) Extension support" |
| | 1608 | depends on VFPv3 && CPU_V7 |
| | 1609 | help |
| | 1610 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD |
| | 1611 | Extension. |
| | 1612 | |
| | 1613 | endmenu |
| | 1614 | |
| | 1615 | menu "Userspace binary formats" |
| | 1616 | |
| | 1617 | source "fs/Kconfig.binfmt" |
| | 1618 | |
| | 1619 | config ARTHUR |
| | 1620 | tristate "RISC OS personality" |
| | 1621 | depends on !AEABI |
| | 1622 | help |
| | 1623 | Say Y here to include the kernel code necessary if you want to run |
| | 1624 | Acorn RISC OS/Arthur binaries under Linux. This code is still very |
| | 1625 | experimental; if this sounds frightening, say N and sleep in peace. |
| | 1626 | You can also say M here to compile this support as a module (which |
| | 1627 | will be called arthur). |
| | 1628 | |
| | 1629 | endmenu |
| | 1630 | |
| | 1631 | menu "Power management options" |
| | 1632 | |
| | 1633 | source "kernel/power/Kconfig" |
| | 1634 | |
| | 1635 | config ARCH_SUSPEND_POSSIBLE |
| | 1636 | def_bool y |
| | 1637 | |
| | 1638 | endmenu |
| | 1639 | |
| | 1640 | source "net/Kconfig" |
| | 1641 | |
| | 1642 | source "drivers/Kconfig" |
| | 1643 | |
| | 1644 | source "fs/Kconfig" |
| | 1645 | |
| | 1646 | source "arch/arm/Kconfig.debug" |
| | 1647 | |
| | 1648 | source "security/Kconfig" |
| | 1649 | |
| | 1650 | source "crypto/Kconfig" |
| | 1651 | |
| | 1652 | source "lib/Kconfig" |
projects / deliverable / linux.git / blame_incremental