11da177e4SLinus Torvalds# 21da177e4SLinus Torvalds# For a description of the syntax of this configuration file, 31da177e4SLinus Torvalds# see Documentation/kbuild/kconfig-language.txt. 41da177e4SLinus Torvalds# 51da177e4SLinus Torvalds 61da177e4SLinus Torvaldsmainmenu "Linux Kernel Configuration" 71da177e4SLinus Torvalds 81da177e4SLinus Torvaldsconfig ARM 91da177e4SLinus Torvalds bool 101da177e4SLinus Torvalds default y 11e17c6d56SDavid Woodhouse select HAVE_AOUT 122064c946SAdrian Bunk select HAVE_IDE 1312b824fbSAlessandro Zummo select RTC_LIB 1475e7153aSRalf Baechle select SYS_SUPPORTS_APM_EMULATION 1524b44a66SWill Deacon select GENERIC_ATOMIC64 if (!CPU_32v6K) 16fe166148SWill Deacon select HAVE_OPROFILE if (HAVE_PERF_EVENTS) 175cbad0ebSJason Wessel select HAVE_ARCH_KGDB 183f550096SMathieu Desnoyers select HAVE_KPROBES if (!XIP_KERNEL) 199edddaa2SAnanth N Mavinakayanahalli select HAVE_KRETPROBES if (HAVE_KPROBES) 20606576ceSSteven Rostedt select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) 211fe53268SDmitry Baryshkov select HAVE_GENERIC_DMA_COHERENT 22e7db7b42SAlbin Tonnerre select HAVE_KERNEL_GZIP 23e7db7b42SAlbin Tonnerre select HAVE_KERNEL_LZO 246e8699f7SAlbin Tonnerre select HAVE_KERNEL_LZMA 257ada189fSJamie Iles select HAVE_PERF_EVENTS 267ada189fSJamie Iles select PERF_USE_VMALLOC 271da177e4SLinus Torvalds help 281da177e4SLinus Torvalds The ARM series is a line of low-power-consumption RISC chip designs 29f6c8965aSMartin Michlmayr licensed by ARM Ltd and targeted at embedded applications and 301da177e4SLinus Torvalds handhelds such as the Compaq IPAQ. ARM-based PCs are no longer 311da177e4SLinus Torvalds manufactured, but legacy ARM-based PC hardware remains popular in 321da177e4SLinus Torvalds Europe. There is an ARM Linux project with a web page at 331da177e4SLinus Torvalds <http://www.arm.linux.org.uk/>. 341da177e4SLinus Torvalds 351a189b97SRussell Kingconfig HAVE_PWM 361a189b97SRussell King bool 371a189b97SRussell King 3875e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION 3975e7153aSRalf Baechle bool 4075e7153aSRalf Baechle 410a938b97SDavid Brownellconfig GENERIC_GPIO 420a938b97SDavid Brownell bool 430a938b97SDavid Brownell 44746140c7SKevin Hilmanconfig GENERIC_TIME 45746140c7SKevin Hilman bool 465cfc8ee0SJohn Stultz default y 475cfc8ee0SJohn Stultz 485cfc8ee0SJohn Stultzconfig ARCH_USES_GETTIMEOFFSET 495cfc8ee0SJohn Stultz bool 505cfc8ee0SJohn Stultz default n 51746140c7SKevin Hilman 520567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS 530567a0c0SKevin Hilman bool 540567a0c0SKevin Hilman 55a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST 56a8655e83SCatalin Marinas bool 57a8655e83SCatalin Marinas depends on GENERIC_CLOCKEVENTS 58a8655e83SCatalin Marinas default y if SMP && !LOCAL_TIMERS 59a8655e83SCatalin Marinas 60bc581770SLinus Walleijconfig HAVE_TCM 61bc581770SLinus Walleij bool 62bc581770SLinus Walleij select GENERIC_ALLOCATOR 63bc581770SLinus Walleij 64e119bfffSRussell Kingconfig HAVE_PROC_CPU 65e119bfffSRussell King bool 66e119bfffSRussell King 675ea81769SAl Viroconfig NO_IOPORT 685ea81769SAl Viro bool 695ea81769SAl Viro 701da177e4SLinus Torvaldsconfig EISA 711da177e4SLinus Torvalds bool 721da177e4SLinus Torvalds ---help--- 731da177e4SLinus Torvalds The Extended Industry Standard Architecture (EISA) bus was 741da177e4SLinus Torvalds developed as an open alternative to the IBM MicroChannel bus. 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds The EISA bus provided some of the features of the IBM MicroChannel 771da177e4SLinus Torvalds bus while maintaining backward compatibility with cards made for 781da177e4SLinus Torvalds the older ISA bus. The EISA bus saw limited use between 1988 and 791da177e4SLinus Torvalds 1995 when it was made obsolete by the PCI bus. 801da177e4SLinus Torvalds 811da177e4SLinus Torvalds Say Y here if you are building a kernel for an EISA-based machine. 821da177e4SLinus Torvalds 831da177e4SLinus Torvalds Otherwise, say N. 841da177e4SLinus Torvalds 851da177e4SLinus Torvaldsconfig SBUS 861da177e4SLinus Torvalds bool 871da177e4SLinus Torvalds 881da177e4SLinus Torvaldsconfig MCA 891da177e4SLinus Torvalds bool 901da177e4SLinus Torvalds help 911da177e4SLinus Torvalds MicroChannel Architecture is found in some IBM PS/2 machines and 921da177e4SLinus Torvalds laptops. It is a bus system similar to PCI or ISA. See 931da177e4SLinus Torvalds <file:Documentation/mca.txt> (and especially the web page given 941da177e4SLinus Torvalds there) before attempting to build an MCA bus kernel. 951da177e4SLinus Torvalds 964a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS 974a2581a0SThomas Gleixner bool 984a2581a0SThomas Gleixner default y 994a2581a0SThomas Gleixner 100f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT 101f16fb1ecSRussell King bool 102f16fb1ecSRussell King default y 103f16fb1ecSRussell King 104f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT 105f76e9154SNicolas Pitre bool 106f76e9154SNicolas Pitre depends on !SMP 107f76e9154SNicolas Pitre default y 108f76e9154SNicolas Pitre 109f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT 110f16fb1ecSRussell King bool 111f16fb1ecSRussell King default y 112f16fb1ecSRussell King 1137ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT 1147ad1bcb2SRussell King bool 1157ad1bcb2SRussell King default y 1167ad1bcb2SRussell King 1174a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND 1184a2581a0SThomas Gleixner bool 1194a2581a0SThomas Gleixner default y 1204a2581a0SThomas Gleixner 1214a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE 1224a2581a0SThomas Gleixner bool 1234a2581a0SThomas Gleixner default y 1244a2581a0SThomas Gleixner 12595c354feSNick Pigginconfig GENERIC_LOCKBREAK 12695c354feSNick Piggin bool 12795c354feSNick Piggin default y 12895c354feSNick Piggin depends on SMP && PREEMPT 12995c354feSNick Piggin 1301da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK 1311da177e4SLinus Torvalds bool 1321da177e4SLinus Torvalds default y 1331da177e4SLinus Torvalds 1341da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM 1351da177e4SLinus Torvalds bool 1361da177e4SLinus Torvalds 137f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32 138f0d1b0b3SDavid Howells bool 139f0d1b0b3SDavid Howells 140f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64 141f0d1b0b3SDavid Howells bool 142f0d1b0b3SDavid Howells 14389c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ 14489c52ed4SBen Dooks bool 14589c52ed4SBen Dooks help 14689c52ed4SBen Dooks Internal node to signify that the ARCH has CPUFREQ support 14789c52ed4SBen Dooks and that the relevant menu configurations are displayed for 14889c52ed4SBen Dooks it. 14989c52ed4SBen Dooks 150b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT 151b89c3b16SAkinobu Mita bool 152b89c3b16SAkinobu Mita default y 153b89c3b16SAkinobu Mita 1541da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY 1551da177e4SLinus Torvalds bool 1561da177e4SLinus Torvalds default y 1571da177e4SLinus Torvalds 158a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC 159a08b6b79Sviro@ZenIV.linux.org.uk bool 160a08b6b79Sviro@ZenIV.linux.org.uk 1615ac6da66SChristoph Lameterconfig ZONE_DMA 1625ac6da66SChristoph Lameter bool 1635ac6da66SChristoph Lameter 164ccd7ab7fSFUJITA Tomonoriconfig NEED_DMA_MAP_STATE 165ccd7ab7fSFUJITA Tomonori def_bool y 166ccd7ab7fSFUJITA Tomonori 1671da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA 1681da177e4SLinus Torvalds bool 1691da177e4SLinus Torvalds 1701da177e4SLinus Torvaldsconfig FIQ 1711da177e4SLinus Torvalds bool 1721da177e4SLinus Torvalds 173034d2f5aSAl Viroconfig ARCH_MTD_XIP 174034d2f5aSAl Viro bool 175034d2f5aSAl Viro 17660a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ 17760a752efSPaulius Zaleckas def_bool y 17860a752efSPaulius Zaleckas 179d6d502faSKukjin Kimconfig ARM_L1_CACHE_SHIFT_6 180d6d502faSKukjin Kim bool 181d6d502faSKukjin Kim help 182d6d502faSKukjin Kim Setting ARM L1 cache line size to 64 Bytes. 183d6d502faSKukjin Kim 184c760fc19SHyok S. Choiconfig VECTORS_BASE 185c760fc19SHyok S. Choi hex 1866afd6faeSHyok S. Choi default 0xffff0000 if MMU || CPU_HIGH_VECTOR 187c760fc19SHyok S. Choi default DRAM_BASE if REMAP_VECTORS_TO_RAM 188c760fc19SHyok S. Choi default 0x00000000 189c760fc19SHyok S. Choi help 190c760fc19SHyok S. Choi The base address of exception vectors. 191c760fc19SHyok S. Choi 1921da177e4SLinus Torvaldssource "init/Kconfig" 1931da177e4SLinus Torvalds 194dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer" 195dc52ddc0SMatt Helsley 1961da177e4SLinus Torvaldsmenu "System Type" 1971da177e4SLinus Torvalds 1983c427975SHyok S. Choiconfig MMU 1993c427975SHyok S. Choi bool "MMU-based Paged Memory Management Support" 2003c427975SHyok S. Choi default y 2013c427975SHyok S. Choi help 2023c427975SHyok S. Choi Select if you want MMU-based virtualised addressing space 2033c427975SHyok S. Choi support by paged memory management. If unsure, say 'Y'. 2043c427975SHyok S. Choi 205ccf50e23SRussell King# 206ccf50e23SRussell King# The "ARM system type" choice list is ordered alphabetically by option 207ccf50e23SRussell King# text. Please add new entries in the option alphabetic order. 208ccf50e23SRussell King# 2091da177e4SLinus Torvaldschoice 2101da177e4SLinus Torvalds prompt "ARM system type" 2116a0e2430SCatalin Marinas default ARCH_VERSATILE 2121da177e4SLinus Torvalds 2134af6fee1SDeepak Saxenaconfig ARCH_AAEC2000 2144af6fee1SDeepak Saxena bool "Agilent AAEC-2000 based" 215c750815eSRussell King select CPU_ARM920T 2164af6fee1SDeepak Saxena select ARM_AMBA 2179483a578SDavid Brownell select HAVE_CLK 2185cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 2194af6fee1SDeepak Saxena help 2204af6fee1SDeepak Saxena This enables support for systems based on the Agilent AAEC-2000 2214af6fee1SDeepak Saxena 2224af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR 2234af6fee1SDeepak Saxena bool "ARM Ltd. Integrator family" 2244af6fee1SDeepak Saxena select ARM_AMBA 22589c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 226d72fbdf0SRussell King select COMMON_CLKDEV 227c5a0adb5SRussell King select ICST 22813edd86dSRussell King select GENERIC_CLOCKEVENTS 229f4b8b319SRussell King select PLAT_VERSATILE 2304af6fee1SDeepak Saxena help 2314af6fee1SDeepak Saxena Support for ARM's Integrator platform. 2324af6fee1SDeepak Saxena 2334af6fee1SDeepak Saxenaconfig ARCH_REALVIEW 2344af6fee1SDeepak Saxena bool "ARM Ltd. RealView family" 2354af6fee1SDeepak Saxena select ARM_AMBA 236cf30fb4aSRussell King select COMMON_CLKDEV 237c5a0adb5SRussell King select ICST 238ae30ceacSCatalin Marinas select GENERIC_CLOCKEVENTS 239eb7fffa3SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 240f4b8b319SRussell King select PLAT_VERSATILE 241e3887714SRussell King select ARM_TIMER_SP804 242b56ba8aaSColin Tuckley select GPIO_PL061 if GPIOLIB 2434af6fee1SDeepak Saxena help 2444af6fee1SDeepak Saxena This enables support for ARM Ltd RealView boards. 2454af6fee1SDeepak Saxena 2464af6fee1SDeepak Saxenaconfig ARCH_VERSATILE 2474af6fee1SDeepak Saxena bool "ARM Ltd. Versatile family" 2484af6fee1SDeepak Saxena select ARM_AMBA 2494af6fee1SDeepak Saxena select ARM_VIC 25071a06da0SRussell King select COMMON_CLKDEV 251c5a0adb5SRussell King select ICST 25289df1272SKevin Hilman select GENERIC_CLOCKEVENTS 253bbeddc43SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 254f4b8b319SRussell King select PLAT_VERSATILE 255e3887714SRussell King select ARM_TIMER_SP804 2564af6fee1SDeepak Saxena help 2574af6fee1SDeepak Saxena This enables support for ARM Ltd Versatile board. 2584af6fee1SDeepak Saxena 259ceade897SRussell Kingconfig ARCH_VEXPRESS 260ceade897SRussell King bool "ARM Ltd. Versatile Express family" 261ceade897SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 262ceade897SRussell King select ARM_AMBA 263ceade897SRussell King select ARM_TIMER_SP804 264ceade897SRussell King select COMMON_CLKDEV 265ceade897SRussell King select GENERIC_CLOCKEVENTS 266ceade897SRussell King select HAVE_CLK 267ceade897SRussell King select ICST 268ceade897SRussell King select PLAT_VERSATILE 269ceade897SRussell King help 270ceade897SRussell King This enables support for the ARM Ltd Versatile Express boards. 271ceade897SRussell King 2728fc5ffa0SAndrew Victorconfig ARCH_AT91 2738fc5ffa0SAndrew Victor bool "Atmel AT91" 274f373e8c0SRyan Mallon select ARCH_REQUIRE_GPIOLIB 27593686ae8SDavid Brownell select HAVE_CLK 2765cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 2774af6fee1SDeepak Saxena help 2782b3b3516SAndrew Victor This enables support for systems based on the Atmel AT91RM9200, 2792b3b3516SAndrew Victor AT91SAM9 and AT91CAP9 processors. 2804af6fee1SDeepak Saxena 281ccf50e23SRussell Kingconfig ARCH_BCMRING 282ccf50e23SRussell King bool "Broadcom BCMRING" 283ccf50e23SRussell King depends on MMU 284ccf50e23SRussell King select CPU_V6 285ccf50e23SRussell King select ARM_AMBA 286ccf50e23SRussell King select COMMON_CLKDEV 287ccf50e23SRussell King select GENERIC_CLOCKEVENTS 288ccf50e23SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 289ccf50e23SRussell King help 290ccf50e23SRussell King Support for Broadcom's BCMRing platform. 291ccf50e23SRussell King 2921da177e4SLinus Torvaldsconfig ARCH_CLPS711X 2934af6fee1SDeepak Saxena bool "Cirrus Logic CLPS711x/EP721x-based" 294c750815eSRussell King select CPU_ARM720T 2955cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 296f999b8bdSMartin Michlmayr help 297f999b8bdSMartin Michlmayr Support for Cirrus Logic 711x/721x based boards. 2981da177e4SLinus Torvalds 299d94f944eSAnton Vorontsovconfig ARCH_CNS3XXX 300d94f944eSAnton Vorontsov bool "Cavium Networks CNS3XXX family" 301d94f944eSAnton Vorontsov select CPU_V6 302d94f944eSAnton Vorontsov select GENERIC_CLOCKEVENTS 303d94f944eSAnton Vorontsov select ARM_GIC 304d94f944eSAnton Vorontsov help 305d94f944eSAnton Vorontsov Support for Cavium Networks CNS3XXX platform. 306d94f944eSAnton Vorontsov 307788c9700SRussell Kingconfig ARCH_GEMINI 308788c9700SRussell King bool "Cortina Systems Gemini" 309788c9700SRussell King select CPU_FA526 310788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 3115cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 312788c9700SRussell King help 313788c9700SRussell King Support for the Cortina Systems Gemini family SoCs 314788c9700SRussell King 3151da177e4SLinus Torvaldsconfig ARCH_EBSA110 3161da177e4SLinus Torvalds bool "EBSA-110" 317c750815eSRussell King select CPU_SA110 318f7e68bbfSRussell King select ISA 319c5eb2a2bSRussell King select NO_IOPORT 3205cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 3211da177e4SLinus Torvalds help 3221da177e4SLinus Torvalds This is an evaluation board for the StrongARM processor available 323f6c8965aSMartin Michlmayr from Digital. It has limited hardware on-board, including an 3241da177e4SLinus Torvalds Ethernet interface, two PCMCIA sockets, two serial ports and a 3251da177e4SLinus Torvalds parallel port. 3261da177e4SLinus Torvalds 327e7736d47SLennert Buytenhekconfig ARCH_EP93XX 328e7736d47SLennert Buytenhek bool "EP93xx-based" 329c750815eSRussell King select CPU_ARM920T 330e7736d47SLennert Buytenhek select ARM_AMBA 331e7736d47SLennert Buytenhek select ARM_VIC 332ae696fd5SRussell King select COMMON_CLKDEV 3337444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 334eb33575cSMel Gorman select ARCH_HAS_HOLES_MEMORYMODEL 3355cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 336e7736d47SLennert Buytenhek help 337e7736d47SLennert Buytenhek This enables support for the Cirrus EP93xx series of CPUs. 338e7736d47SLennert Buytenhek 3391da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE 3401da177e4SLinus Torvalds bool "FootBridge" 341c750815eSRussell King select CPU_SA110 3421da177e4SLinus Torvalds select FOOTBRIDGE 3435cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 344f999b8bdSMartin Michlmayr help 345f999b8bdSMartin Michlmayr Support for systems based on the DC21285 companion chip 346f999b8bdSMartin Michlmayr ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. 3471da177e4SLinus Torvalds 348788c9700SRussell Kingconfig ARCH_MXC 349788c9700SRussell King bool "Freescale MXC/iMX-based" 350788c9700SRussell King select GENERIC_CLOCKEVENTS 351788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 35203e09cd8SUwe Kleine-König select COMMON_CLKDEV 353788c9700SRussell King help 354788c9700SRussell King Support for Freescale MXC/iMX-based family of processors 355788c9700SRussell King 3567bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX 3577bd0f2f5Sdmitry pervushin bool "Freescale STMP3xxx" 3587bd0f2f5Sdmitry pervushin select CPU_ARM926T 3597bd0f2f5Sdmitry pervushin select COMMON_CLKDEV 3607bd0f2f5Sdmitry pervushin select ARCH_REQUIRE_GPIOLIB 3617bd0f2f5Sdmitry pervushin select GENERIC_CLOCKEVENTS 3627bd0f2f5Sdmitry pervushin select USB_ARCH_HAS_EHCI 3637bd0f2f5Sdmitry pervushin help 3647bd0f2f5Sdmitry pervushin Support for systems based on the Freescale 3xxx CPUs. 3657bd0f2f5Sdmitry pervushin 3664af6fee1SDeepak Saxenaconfig ARCH_NETX 3674af6fee1SDeepak Saxena bool "Hilscher NetX based" 368c750815eSRussell King select CPU_ARM926T 3694af6fee1SDeepak Saxena select ARM_VIC 3702fcfe6b8SUwe Kleine-König select GENERIC_CLOCKEVENTS 371f999b8bdSMartin Michlmayr help 3724af6fee1SDeepak Saxena This enables support for systems based on the Hilscher NetX Soc 3734af6fee1SDeepak Saxena 3744af6fee1SDeepak Saxenaconfig ARCH_H720X 3754af6fee1SDeepak Saxena bool "Hynix HMS720x-based" 376c750815eSRussell King select CPU_ARM720T 3774af6fee1SDeepak Saxena select ISA_DMA_API 3785cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 3794af6fee1SDeepak Saxena help 3804af6fee1SDeepak Saxena This enables support for systems based on the Hynix HMS720x 3814af6fee1SDeepak Saxena 3823b938be6SRussell Kingconfig ARCH_IOP13XX 3833b938be6SRussell King bool "IOP13xx-based" 3843b938be6SRussell King depends on MMU 385c750815eSRussell King select CPU_XSC3 3863b938be6SRussell King select PLAT_IOP 3873b938be6SRussell King select PCI 3883b938be6SRussell King select ARCH_SUPPORTS_MSI 3898d5796d2SLennert Buytenhek select VMSPLIT_1G 3903b938be6SRussell King help 3913b938be6SRussell King Support for Intel's IOP13XX (XScale) family of processors. 3923b938be6SRussell King 3933f7e5815SLennert Buytenhekconfig ARCH_IOP32X 3943f7e5815SLennert Buytenhek bool "IOP32x-based" 395a4f7e763SRussell King depends on MMU 396c750815eSRussell King select CPU_XSCALE 3977ae1f7ecSLennert Buytenhek select PLAT_IOP 398f7e68bbfSRussell King select PCI 399bb2b180cSRussell King select ARCH_REQUIRE_GPIOLIB 400f999b8bdSMartin Michlmayr help 4013f7e5815SLennert Buytenhek Support for Intel's 80219 and IOP32X (XScale) family of 4023f7e5815SLennert Buytenhek processors. 4033f7e5815SLennert Buytenhek 4043f7e5815SLennert Buytenhekconfig ARCH_IOP33X 4053f7e5815SLennert Buytenhek bool "IOP33x-based" 4063f7e5815SLennert Buytenhek depends on MMU 407c750815eSRussell King select CPU_XSCALE 4087ae1f7ecSLennert Buytenhek select PLAT_IOP 4093f7e5815SLennert Buytenhek select PCI 410bb2b180cSRussell King select ARCH_REQUIRE_GPIOLIB 4113f7e5815SLennert Buytenhek help 4123f7e5815SLennert Buytenhek Support for Intel's IOP33X (XScale) family of processors. 4131da177e4SLinus Torvalds 4143b938be6SRussell Kingconfig ARCH_IXP23XX 4153b938be6SRussell King bool "IXP23XX-based" 416588ef769SDan Williams depends on MMU 417c750815eSRussell King select CPU_XSC3 418285f5fa7SDan Williams select PCI 4195cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 420285f5fa7SDan Williams help 4213b938be6SRussell King Support for Intel's IXP23xx (XScale) family of processors. 4221da177e4SLinus Torvalds 4231da177e4SLinus Torvaldsconfig ARCH_IXP2000 4241da177e4SLinus Torvalds bool "IXP2400/2800-based" 425a4f7e763SRussell King depends on MMU 426c750815eSRussell King select CPU_XSCALE 427f7e68bbfSRussell King select PCI 4285cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 429f999b8bdSMartin Michlmayr help 430f999b8bdSMartin Michlmayr Support for Intel's IXP2400/2800 (XScale) family of processors. 4311da177e4SLinus Torvalds 4323b938be6SRussell Kingconfig ARCH_IXP4XX 4333b938be6SRussell King bool "IXP4xx-based" 434a4f7e763SRussell King depends on MMU 435c750815eSRussell King select CPU_XSCALE 4368858e9afSMilan Svoboda select GENERIC_GPIO 4373b938be6SRussell King select GENERIC_CLOCKEVENTS 438485bdde7SRussell King select DMABOUNCE if PCI 439c4713074SLennert Buytenhek help 4403b938be6SRussell King Support for Intel's IXP4XX (XScale) family of processors. 441c4713074SLennert Buytenhek 4421da177e4SLinus Torvaldsconfig ARCH_L7200 4431da177e4SLinus Torvalds bool "LinkUp-L7200" 444c750815eSRussell King select CPU_ARM720T 4451da177e4SLinus Torvalds select FIQ 4465cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 4471da177e4SLinus Torvalds help 4481da177e4SLinus Torvalds Say Y here if you intend to run this kernel on a LinkUp Systems 4491da177e4SLinus Torvalds L7200 Software Development Board which uses an ARM720T processor. 4501da177e4SLinus Torvalds Information on this board can be obtained at: 4511da177e4SLinus Torvalds 4521da177e4SLinus Torvalds <http://www.linkupsys.com/> 4531da177e4SLinus Torvalds 4541da177e4SLinus Torvalds If you have any questions or comments about the Linux kernel port 4551da177e4SLinus Torvalds to this board, send e-mail to <sjhill@cotw.com>. 4561da177e4SLinus Torvalds 457edabd38eSSaeed Bisharaconfig ARCH_DOVE 458edabd38eSSaeed Bishara bool "Marvell Dove" 459edabd38eSSaeed Bishara select PCI 460edabd38eSSaeed Bishara select ARCH_REQUIRE_GPIOLIB 461edabd38eSSaeed Bishara select GENERIC_CLOCKEVENTS 462edabd38eSSaeed Bishara select PLAT_ORION 463edabd38eSSaeed Bishara help 464edabd38eSSaeed Bishara Support for the Marvell Dove SoC 88AP510 465edabd38eSSaeed Bishara 466651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD 467651c74c7SSaeed Bishara bool "Marvell Kirkwood" 468c750815eSRussell King select CPU_FEROCEON 469651c74c7SSaeed Bishara select PCI 470a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 471651c74c7SSaeed Bishara select GENERIC_CLOCKEVENTS 472651c74c7SSaeed Bishara select PLAT_ORION 473651c74c7SSaeed Bishara help 474651c74c7SSaeed Bishara Support for the following Marvell Kirkwood series SoCs: 475651c74c7SSaeed Bishara 88F6180, 88F6192 and 88F6281. 476651c74c7SSaeed Bishara 477788c9700SRussell Kingconfig ARCH_LOKI 478788c9700SRussell King bool "Marvell Loki (88RC8480)" 479788c9700SRussell King select CPU_FEROCEON 480788c9700SRussell King select GENERIC_CLOCKEVENTS 481788c9700SRussell King select PLAT_ORION 482788c9700SRussell King help 483788c9700SRussell King Support for the Marvell Loki (88RC8480) SoC. 484788c9700SRussell King 485788c9700SRussell Kingconfig ARCH_MV78XX0 486788c9700SRussell King bool "Marvell MV78xx0" 487788c9700SRussell King select CPU_FEROCEON 488788c9700SRussell King select PCI 489a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 490788c9700SRussell King select GENERIC_CLOCKEVENTS 491788c9700SRussell King select PLAT_ORION 492788c9700SRussell King help 493788c9700SRussell King Support for the following Marvell MV78xx0 series SoCs: 494788c9700SRussell King MV781x0, MV782x0. 495788c9700SRussell King 496788c9700SRussell Kingconfig ARCH_ORION5X 497788c9700SRussell King bool "Marvell Orion" 498788c9700SRussell King depends on MMU 499788c9700SRussell King select CPU_FEROCEON 500788c9700SRussell King select PCI 501a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 502788c9700SRussell King select GENERIC_CLOCKEVENTS 503788c9700SRussell King select PLAT_ORION 504788c9700SRussell King help 505788c9700SRussell King Support for the following Marvell Orion 5x series SoCs: 506788c9700SRussell King Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), 507788c9700SRussell King Orion-2 (5281), Orion-1-90 (6183). 508788c9700SRussell King 509788c9700SRussell Kingconfig ARCH_MMP 5102f7e8faeSHaojian Zhuang bool "Marvell PXA168/910/MMP2" 511788c9700SRussell King depends on MMU 512788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 513788c9700SRussell King select COMMON_CLKDEV 514788c9700SRussell King select GENERIC_CLOCKEVENTS 515788c9700SRussell King select TICK_ONESHOT 516788c9700SRussell King select PLAT_PXA 517788c9700SRussell King help 5182f7e8faeSHaojian Zhuang Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. 519788c9700SRussell King 520c53c9cf6SAndrew Victorconfig ARCH_KS8695 521c53c9cf6SAndrew Victor bool "Micrel/Kendin KS8695" 522c750815eSRussell King select CPU_ARM922T 52372880ad8SDaniel Silverstone select ARCH_REQUIRE_GPIOLIB 5245cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 525c53c9cf6SAndrew Victor help 526c53c9cf6SAndrew Victor Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based 527c53c9cf6SAndrew Victor System-on-Chip devices. 528c53c9cf6SAndrew Victor 5299918cda5SUwe Kleine-Königconfig ARCH_NS9XXX 5309918cda5SUwe Kleine-König bool "NetSilicon NS9xxx" 531c750815eSRussell King select CPU_ARM926T 532689f2a01SUwe Kleine-König select GENERIC_GPIO 533c0bb87f7SUwe Kleine-König select GENERIC_CLOCKEVENTS 5349483a578SDavid Brownell select HAVE_CLK 5359918cda5SUwe Kleine-König help 5369918cda5SUwe Kleine-König Say Y here if you intend to run this kernel on a NetSilicon NS9xxx 5379918cda5SUwe Kleine-König System. 5389918cda5SUwe Kleine-König 5399918cda5SUwe Kleine-König <http://www.digi.com/products/microprocessors/index.jsp> 5409918cda5SUwe Kleine-König 541788c9700SRussell Kingconfig ARCH_W90X900 542788c9700SRussell King bool "Nuvoton W90X900 CPU" 543788c9700SRussell King select CPU_ARM926T 544c52d3d68Swanzongshun select ARCH_REQUIRE_GPIOLIB 5450e4a34bbSwanzongshun select COMMON_CLKDEV 54658b5369eSwanzongshun select GENERIC_CLOCKEVENTS 547777f9bebSLennert Buytenhek help 548a8bc4eadSwanzongshun Support for Nuvoton (Winbond logic dept.) ARM9 processor, 549a8bc4eadSwanzongshun At present, the w90x900 has been renamed nuc900, regarding 550a8bc4eadSwanzongshun the ARM series product line, you can login the following 551a8bc4eadSwanzongshun link address to know more. 552a8bc4eadSwanzongshun 553a8bc4eadSwanzongshun <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ 554a8bc4eadSwanzongshun ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> 555585cf175STzachi Perelstein 556a62e9030Swanzongshunconfig ARCH_NUC93X 557a62e9030Swanzongshun bool "Nuvoton NUC93X CPU" 558a62e9030Swanzongshun select CPU_ARM926T 559a62e9030Swanzongshun select COMMON_CLKDEV 560a62e9030Swanzongshun help 561a62e9030Swanzongshun Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a 562a62e9030Swanzongshun low-power and high performance MPEG-4/JPEG multimedia controller chip. 563a62e9030Swanzongshun 5644af6fee1SDeepak Saxenaconfig ARCH_PNX4008 5654af6fee1SDeepak Saxena bool "Philips Nexperia PNX4008 Mobile" 566c750815eSRussell King select CPU_ARM926T 5676985a5adSRussell King select COMMON_CLKDEV 5685cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 5694af6fee1SDeepak Saxena help 5704af6fee1SDeepak Saxena This enables support for Philips PNX4008 mobile platform. 5714af6fee1SDeepak Saxena 5721da177e4SLinus Torvaldsconfig ARCH_PXA 5732c8086a5Seric miao bool "PXA2xx/PXA3xx-based" 574a4f7e763SRussell King depends on MMU 575034d2f5aSAl Viro select ARCH_MTD_XIP 57689c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 5778c3abc7dSRussell King select COMMON_CLKDEV 5787444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 579981d0f39SEric Miao select GENERIC_CLOCKEVENTS 580a88264c2SRussell King select TICK_ONESHOT 581bd5ce433SEric Miao select PLAT_PXA 582f999b8bdSMartin Michlmayr help 5832c8086a5Seric miao Support for Intel/Marvell's PXA2xx/PXA3xx processor line. 5841da177e4SLinus Torvalds 585788c9700SRussell Kingconfig ARCH_MSM 586788c9700SRussell King bool "Qualcomm MSM" 5874b536b8dSSteve Muckle select HAVE_CLK 58849cbe786SEric Miao select GENERIC_CLOCKEVENTS 58949cbe786SEric Miao help 5904b53eb4fSDaniel Walker Support for Qualcomm MSM/QSD based systems. This runs on the 5914b53eb4fSDaniel Walker apps processor of the MSM/QSD and depends on a shared memory 5924b53eb4fSDaniel Walker interface to the modem processor which runs the baseband 5934b53eb4fSDaniel Walker stack and controls some vital subsystems 5944b53eb4fSDaniel Walker (clock and power control, etc). 59549cbe786SEric Miao 596c793c1b0SMagnus Dammconfig ARCH_SHMOBILE 597c793c1b0SMagnus Damm bool "Renesas SH-Mobile" 598c793c1b0SMagnus Damm help 599c793c1b0SMagnus Damm Support for Renesas's SH-Mobile ARM platforms 600c793c1b0SMagnus Damm 6011da177e4SLinus Torvaldsconfig ARCH_RPC 6021da177e4SLinus Torvalds bool "RiscPC" 6031da177e4SLinus Torvalds select ARCH_ACORN 6041da177e4SLinus Torvalds select FIQ 6051da177e4SLinus Torvalds select TIMER_ACORN 606a08b6b79Sviro@ZenIV.linux.org.uk select ARCH_MAY_HAVE_PC_FDC 607341eb781SBen Dooks select HAVE_PATA_PLATFORM 608065909b9SRussell King select ISA_DMA_API 6095ea81769SAl Viro select NO_IOPORT 61007f841b7SRussell King select ARCH_SPARSEMEM_ENABLE 6115cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 6121da177e4SLinus Torvalds help 6131da177e4SLinus Torvalds On the Acorn Risc-PC, Linux can support the internal IDE disk and 6141da177e4SLinus Torvalds CD-ROM interface, serial and parallel port, and the floppy drive. 6151da177e4SLinus Torvalds 6161da177e4SLinus Torvaldsconfig ARCH_SA1100 6171da177e4SLinus Torvalds bool "SA1100-based" 618c750815eSRussell King select CPU_SA1100 619f7e68bbfSRussell King select ISA 62005944d74SRussell King select ARCH_SPARSEMEM_ENABLE 621034d2f5aSAl Viro select ARCH_MTD_XIP 62289c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 6231937f5b9SRussell King select CPU_FREQ 6243e238be2SRussell King select GENERIC_CLOCKEVENTS 6259483a578SDavid Brownell select HAVE_CLK 6263e238be2SRussell King select TICK_ONESHOT 6277444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 628f999b8bdSMartin Michlmayr help 629f999b8bdSMartin Michlmayr Support for StrongARM 11x0 based boards. 6301da177e4SLinus Torvalds 6311da177e4SLinus Torvaldsconfig ARCH_S3C2410 63263b1f51bSBen Dooks bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450" 6330a938b97SDavid Brownell select GENERIC_GPIO 6349d56c02aSBen Dooks select ARCH_HAS_CPUFREQ 6359483a578SDavid Brownell select HAVE_CLK 6365cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 6371da177e4SLinus Torvalds help 6381da177e4SLinus Torvalds Samsung S3C2410X CPU based systems, such as the Simtec Electronics 6391da177e4SLinus Torvalds BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or 640f6c8965aSMartin Michlmayr the Samsung SMDK2410 development board (and derivatives). 6411da177e4SLinus Torvalds 64263b1f51bSBen Dooks Note, the S3C2416 and the S3C2450 are so close that they even share 64363b1f51bSBen Dooks the same SoC ID code. This means that there is no seperate machine 64463b1f51bSBen Dooks directory (no arch/arm/mach-s3c2450) as the S3C2416 was first. 64563b1f51bSBen Dooks 646a08ab637SBen Dooksconfig ARCH_S3C64XX 647a08ab637SBen Dooks bool "Samsung S3C64XX" 64889f1fa08SBen Dooks select PLAT_SAMSUNG 64989f0ce72SBen Dooks select CPU_V6 65089f0ce72SBen Dooks select ARM_VIC 651a08ab637SBen Dooks select HAVE_CLK 65289f0ce72SBen Dooks select NO_IOPORT 6535cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 65489c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 65589f0ce72SBen Dooks select ARCH_REQUIRE_GPIOLIB 65689f0ce72SBen Dooks select SAMSUNG_CLKSRC 65789f0ce72SBen Dooks select SAMSUNG_IRQ_VIC_TIMER 65889f0ce72SBen Dooks select SAMSUNG_IRQ_UART 65989f0ce72SBen Dooks select S3C_GPIO_TRACK 66089f0ce72SBen Dooks select S3C_GPIO_PULL_UPDOWN 66189f0ce72SBen Dooks select S3C_GPIO_CFG_S3C24XX 66289f0ce72SBen Dooks select S3C_GPIO_CFG_S3C64XX 66389f0ce72SBen Dooks select S3C_DEV_NAND 66489f0ce72SBen Dooks select USB_ARCH_HAS_OHCI 66589f0ce72SBen Dooks select SAMSUNG_GPIOLIB_4BIT 666a08ab637SBen Dooks help 667a08ab637SBen Dooks Samsung S3C64XX series based systems 668a08ab637SBen Dooks 669c4ffccddSKukjin Kimconfig ARCH_S5P6440 670c4ffccddSKukjin Kim bool "Samsung S5P6440" 671c4ffccddSKukjin Kim select CPU_V6 672c4ffccddSKukjin Kim select GENERIC_GPIO 673c4ffccddSKukjin Kim select HAVE_CLK 674925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 675c4ffccddSKukjin Kim help 676c4ffccddSKukjin Kim Samsung S5P6440 CPU based systems 677c4ffccddSKukjin Kim 678550db7f1SKukjin Kimconfig ARCH_S5P6442 679550db7f1SKukjin Kim bool "Samsung S5P6442" 680550db7f1SKukjin Kim select CPU_V6 681550db7f1SKukjin Kim select GENERIC_GPIO 682550db7f1SKukjin Kim select HAVE_CLK 683925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 684550db7f1SKukjin Kim help 685550db7f1SKukjin Kim Samsung S5P6442 CPU based systems 686550db7f1SKukjin Kim 687acc84707SMarek Szyprowskiconfig ARCH_S5PC100 688acc84707SMarek Szyprowski bool "Samsung S5PC100" 6895a7652f2SByungho Min select GENERIC_GPIO 6905a7652f2SByungho Min select HAVE_CLK 6915a7652f2SByungho Min select CPU_V7 692d6d502faSKukjin Kim select ARM_L1_CACHE_SHIFT_6 693925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 6945a7652f2SByungho Min help 695acc84707SMarek Szyprowski Samsung S5PC100 series based systems 6965a7652f2SByungho Min 697170f4e42SKukjin Kimconfig ARCH_S5PV210 698170f4e42SKukjin Kim bool "Samsung S5PV210/S5PC110" 699170f4e42SKukjin Kim select CPU_V7 700170f4e42SKukjin Kim select GENERIC_GPIO 701170f4e42SKukjin Kim select HAVE_CLK 702170f4e42SKukjin Kim select ARM_L1_CACHE_SHIFT_6 703925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 704170f4e42SKukjin Kim help 705170f4e42SKukjin Kim Samsung S5PV210/S5PC110 series based systems 706170f4e42SKukjin Kim 707*cc0e72b8SChanghwan Younconfig ARCH_S5PV310 708*cc0e72b8SChanghwan Youn bool "Samsung S5PV310/S5PC210" 709*cc0e72b8SChanghwan Youn select CPU_V7 710*cc0e72b8SChanghwan Youn select GENERIC_GPIO 711*cc0e72b8SChanghwan Youn select HAVE_CLK 712*cc0e72b8SChanghwan Youn select GENERIC_CLOCKEVENTS 713*cc0e72b8SChanghwan Youn help 714*cc0e72b8SChanghwan Youn Samsung S5PV310 series based systems 715*cc0e72b8SChanghwan Youn 7161da177e4SLinus Torvaldsconfig ARCH_SHARK 7171da177e4SLinus Torvalds bool "Shark" 718c750815eSRussell King select CPU_SA110 719f7e68bbfSRussell King select ISA 720f7e68bbfSRussell King select ISA_DMA 7213bca103aSNicolas Pitre select ZONE_DMA 722f7e68bbfSRussell King select PCI 7235cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 724f999b8bdSMartin Michlmayr help 725f999b8bdSMartin Michlmayr Support for the StrongARM based Digital DNARD machine, also known 726f999b8bdSMartin Michlmayr as "Shark" (<http://www.shark-linux.de/shark.html>). 7271da177e4SLinus Torvalds 7281da177e4SLinus Torvaldsconfig ARCH_LH7A40X 7291da177e4SLinus Torvalds bool "Sharp LH7A40X" 730c750815eSRussell King select CPU_ARM922T 7314ba3f7c5SRussell King select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM 7324ba3f7c5SRussell King select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM 7335cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 7341da177e4SLinus Torvalds help 7351da177e4SLinus Torvalds Say Y here for systems based on one of the Sharp LH7A40X 7361da177e4SLinus Torvalds System on a Chip processors. These CPUs include an ARM922T 7371da177e4SLinus Torvalds core with a wide array of integrated devices for 7381da177e4SLinus Torvalds hand-held and low-power applications. 7391da177e4SLinus Torvalds 740d98aac75SLinus Walleijconfig ARCH_U300 741d98aac75SLinus Walleij bool "ST-Ericsson U300 Series" 742d98aac75SLinus Walleij depends on MMU 743d98aac75SLinus Walleij select CPU_ARM926T 744bc581770SLinus Walleij select HAVE_TCM 745d98aac75SLinus Walleij select ARM_AMBA 746d98aac75SLinus Walleij select ARM_VIC 747d98aac75SLinus Walleij select GENERIC_CLOCKEVENTS 748d98aac75SLinus Walleij select COMMON_CLKDEV 749d98aac75SLinus Walleij select GENERIC_GPIO 750d98aac75SLinus Walleij help 751d98aac75SLinus Walleij Support for ST-Ericsson U300 series mobile platforms. 752d98aac75SLinus Walleij 753ccf50e23SRussell Kingconfig ARCH_U8500 754ccf50e23SRussell King bool "ST-Ericsson U8500 Series" 755ccf50e23SRussell King select CPU_V7 756ccf50e23SRussell King select ARM_AMBA 757ccf50e23SRussell King select GENERIC_CLOCKEVENTS 758ccf50e23SRussell King select COMMON_CLKDEV 75994bdc0e2SRabin Vincent select ARCH_REQUIRE_GPIOLIB 760ccf50e23SRussell King help 761ccf50e23SRussell King Support for ST-Ericsson's Ux500 architecture 762ccf50e23SRussell King 763ccf50e23SRussell Kingconfig ARCH_NOMADIK 764ccf50e23SRussell King bool "STMicroelectronics Nomadik" 765ccf50e23SRussell King select ARM_AMBA 766ccf50e23SRussell King select ARM_VIC 767ccf50e23SRussell King select CPU_ARM926T 768ccf50e23SRussell King select COMMON_CLKDEV 769ccf50e23SRussell King select GENERIC_CLOCKEVENTS 770ccf50e23SRussell King select ARCH_REQUIRE_GPIOLIB 771ccf50e23SRussell King help 772ccf50e23SRussell King Support for the Nomadik platform by ST-Ericsson 773ccf50e23SRussell King 7747c6337e2SKevin Hilmanconfig ARCH_DAVINCI 7757c6337e2SKevin Hilman bool "TI DaVinci" 7767c6337e2SKevin Hilman select GENERIC_CLOCKEVENTS 777dce1115bSDavid Brownell select ARCH_REQUIRE_GPIOLIB 7783bca103aSNicolas Pitre select ZONE_DMA 7799232fcc9SKevin Hilman select HAVE_IDE 780c5b736d0SKevin Hilman select COMMON_CLKDEV 78120e9969bSDavid Brownell select GENERIC_ALLOCATOR 782ae88e05aSSekhar Nori select ARCH_HAS_HOLES_MEMORYMODEL 7837c6337e2SKevin Hilman help 7847c6337e2SKevin Hilman Support for TI's DaVinci platform. 7857c6337e2SKevin Hilman 7863b938be6SRussell Kingconfig ARCH_OMAP 7873b938be6SRussell King bool "TI OMAP" 7889483a578SDavid Brownell select HAVE_CLK 7897444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 79089c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 79106cad098SKevin Hilman select GENERIC_CLOCKEVENTS 7929af915daSSriram select ARCH_HAS_HOLES_MEMORYMODEL 7933b938be6SRussell King help 7943b938be6SRussell King Support for TI's OMAP platform (OMAP1 and OMAP2). 7953b938be6SRussell King 796cee37e50Sviresh kumarconfig PLAT_SPEAR 797cee37e50Sviresh kumar bool "ST SPEAr" 798cee37e50Sviresh kumar select ARM_AMBA 799cee37e50Sviresh kumar select ARCH_REQUIRE_GPIOLIB 800cee37e50Sviresh kumar select COMMON_CLKDEV 801cee37e50Sviresh kumar select GENERIC_CLOCKEVENTS 802cee37e50Sviresh kumar select HAVE_CLK 803cee37e50Sviresh kumar help 804cee37e50Sviresh kumar Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx). 805cee37e50Sviresh kumar 8061da177e4SLinus Torvaldsendchoice 8071da177e4SLinus Torvalds 808ccf50e23SRussell King# 809ccf50e23SRussell King# This is sorted alphabetically by mach-* pathname. However, plat-* 810ccf50e23SRussell King# Kconfigs may be included either alphabetically (according to the 811ccf50e23SRussell King# plat- suffix) or along side the corresponding mach-* source. 812ccf50e23SRussell King# 81395b8f20fSRussell Kingsource "arch/arm/mach-aaec2000/Kconfig" 81495b8f20fSRussell King 81595b8f20fSRussell Kingsource "arch/arm/mach-at91/Kconfig" 81695b8f20fSRussell King 81795b8f20fSRussell Kingsource "arch/arm/mach-bcmring/Kconfig" 81895b8f20fSRussell King 8191da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig" 8201da177e4SLinus Torvalds 821d94f944eSAnton Vorontsovsource "arch/arm/mach-cns3xxx/Kconfig" 822d94f944eSAnton Vorontsov 82395b8f20fSRussell Kingsource "arch/arm/mach-davinci/Kconfig" 82495b8f20fSRussell King 82595b8f20fSRussell Kingsource "arch/arm/mach-dove/Kconfig" 82695b8f20fSRussell King 827e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig" 828e7736d47SLennert Buytenhek 8291da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig" 8301da177e4SLinus Torvalds 83159d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig" 83259d3a193SPaulius Zaleckas 83395b8f20fSRussell Kingsource "arch/arm/mach-h720x/Kconfig" 83495b8f20fSRussell King 8351da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig" 8361da177e4SLinus Torvalds 8373f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig" 8383f7e5815SLennert Buytenhek 8393f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig" 8401da177e4SLinus Torvalds 841285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig" 842285f5fa7SDan Williams 8431da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig" 8441da177e4SLinus Torvalds 8451da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig" 8461da177e4SLinus Torvalds 847c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig" 848c4713074SLennert Buytenhek 84995b8f20fSRussell Kingsource "arch/arm/mach-kirkwood/Kconfig" 85095b8f20fSRussell King 85195b8f20fSRussell Kingsource "arch/arm/mach-ks8695/Kconfig" 85295b8f20fSRussell King 85395b8f20fSRussell Kingsource "arch/arm/mach-lh7a40x/Kconfig" 85495b8f20fSRussell King 855777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig" 856777f9bebSLennert Buytenhek 85795b8f20fSRussell Kingsource "arch/arm/mach-msm/Kconfig" 85895b8f20fSRussell King 859794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig" 860794d15b2SStanislav Samsonov 86195b8f20fSRussell Kingsource "arch/arm/plat-mxc/Kconfig" 8621da177e4SLinus Torvalds 86395b8f20fSRussell Kingsource "arch/arm/mach-netx/Kconfig" 86449cbe786SEric Miao 86595b8f20fSRussell Kingsource "arch/arm/mach-nomadik/Kconfig" 86695b8f20fSRussell Kingsource "arch/arm/plat-nomadik/Kconfig" 86795b8f20fSRussell King 86895b8f20fSRussell Kingsource "arch/arm/mach-ns9xxx/Kconfig" 8691da177e4SLinus Torvalds 870d91a8910SRussell Kingsource "arch/arm/mach-nuc93x/Kconfig" 871d91a8910SRussell King 872d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig" 873d48af15eSTony Lindgren 874d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig" 8751da177e4SLinus Torvalds 8761dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig" 8771dbae815STony Lindgren 8789dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig" 879585cf175STzachi Perelstein 88095b8f20fSRussell Kingsource "arch/arm/mach-pxa/Kconfig" 88195b8f20fSRussell Kingsource "arch/arm/plat-pxa/Kconfig" 8821da177e4SLinus Torvalds 88395b8f20fSRussell Kingsource "arch/arm/mach-mmp/Kconfig" 88495b8f20fSRussell King 88595b8f20fSRussell Kingsource "arch/arm/mach-realview/Kconfig" 88695b8f20fSRussell King 88795b8f20fSRussell Kingsource "arch/arm/mach-sa1100/Kconfig" 888edabd38eSSaeed Bishara 889cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig" 890a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig" 891c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig" 892a21765a7SBen Dooks 893cee37e50Sviresh kumarsource "arch/arm/plat-spear/Kconfig" 894a21765a7SBen Dooks 895a21765a7SBen Dooksif ARCH_S3C2410 896a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig" 8971da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig" 898a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig" 899f1290a49SYauhen Kharuzhysource "arch/arm/mach-s3c2416/Kconfig" 900a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig" 901e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig" 902a21765a7SBen Dooksendif 9031da177e4SLinus Torvalds 904a08ab637SBen Dooksif ARCH_S3C64XX 905431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig" 906a08ab637SBen Dooksendif 907a08ab637SBen Dooks 908c4ffccddSKukjin Kimsource "arch/arm/mach-s5p6440/Kconfig" 909c4ffccddSKukjin Kim 910550db7f1SKukjin Kimsource "arch/arm/mach-s5p6442/Kconfig" 9117bd0f2f5Sdmitry pervushin 9125a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig" 9135a7652f2SByungho Min 914170f4e42SKukjin Kimsource "arch/arm/mach-s5pv210/Kconfig" 915170f4e42SKukjin Kim 916*cc0e72b8SChanghwan Younsource "arch/arm/mach-s5pv310/Kconfig" 917*cc0e72b8SChanghwan Youn 918882d01f9SRussell Kingsource "arch/arm/mach-shmobile/Kconfig" 9191da177e4SLinus Torvalds 920882d01f9SRussell Kingsource "arch/arm/plat-stmp3xxx/Kconfig" 9219e73c84cSBrian Swetland 92295b8f20fSRussell Kingsource "arch/arm/mach-u300/Kconfig" 92352c543f9SQuinn Jensen 92495b8f20fSRussell Kingsource "arch/arm/mach-ux500/Kconfig" 9251da177e4SLinus Torvalds 9261da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig" 9271da177e4SLinus Torvalds 928ceade897SRussell Kingsource "arch/arm/mach-vexpress/Kconfig" 929ceade897SRussell King 9307ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig" 9317ec80ddfSwanzongshun 9321da177e4SLinus Torvalds# Definitions to make life easier 9331da177e4SLinus Torvaldsconfig ARCH_ACORN 9341da177e4SLinus Torvalds bool 9351da177e4SLinus Torvalds 9367ae1f7ecSLennert Buytenhekconfig PLAT_IOP 9377ae1f7ecSLennert Buytenhek bool 938469d3044SMikael Pettersson select GENERIC_CLOCKEVENTS 9397ae1f7ecSLennert Buytenhek 94069b02f6aSLennert Buytenhekconfig PLAT_ORION 94169b02f6aSLennert Buytenhek bool 94269b02f6aSLennert Buytenhek 943bd5ce433SEric Miaoconfig PLAT_PXA 944bd5ce433SEric Miao bool 945bd5ce433SEric Miao 946f4b8b319SRussell Kingconfig PLAT_VERSATILE 947f4b8b319SRussell King bool 948f4b8b319SRussell King 949e3887714SRussell Kingconfig ARM_TIMER_SP804 950e3887714SRussell King bool 951e3887714SRussell King 9521da177e4SLinus Torvaldssource arch/arm/mm/Kconfig 9531da177e4SLinus Torvalds 954afe4b25eSLennert Buytenhekconfig IWMMXT 955afe4b25eSLennert Buytenhek bool "Enable iWMMXt support" 95640305a58SEric Miao depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK 95740305a58SEric Miao default y if PXA27x || PXA3xx || ARCH_MMP 958afe4b25eSLennert Buytenhek help 959afe4b25eSLennert Buytenhek Enable support for iWMMXt context switching at run time if 960afe4b25eSLennert Buytenhek running on a CPU that supports it. 961afe4b25eSLennert Buytenhek 9621da177e4SLinus Torvalds# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER 9631da177e4SLinus Torvaldsconfig XSCALE_PMU 9641da177e4SLinus Torvalds bool 9651da177e4SLinus Torvalds depends on CPU_XSCALE && !XSCALE_PMU_TIMER 9661da177e4SLinus Torvalds default y 9671da177e4SLinus Torvalds 9680f4f0672SJamie Ilesconfig CPU_HAS_PMU 9698954bb0dSWill Deacon depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \ 9708954bb0dSWill Deacon (!ARCH_OMAP3 || OMAP3_EMU) 9710f4f0672SJamie Iles default y 9720f4f0672SJamie Iles bool 9730f4f0672SJamie Iles 9743b93e7b0SHyok S. Choiif !MMU 9753b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu" 9763b93e7b0SHyok S. Choiendif 9773b93e7b0SHyok S. Choi 9789cba3cccSCatalin Marinasconfig ARM_ERRATA_411920 9799cba3cccSCatalin Marinas bool "ARM errata: Invalidation of the Instruction Cache operation can fail" 9809cba3cccSCatalin Marinas depends on CPU_V6 && !SMP 9819cba3cccSCatalin Marinas help 9829cba3cccSCatalin Marinas Invalidation of the Instruction Cache operation can 9839cba3cccSCatalin Marinas fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. 9849cba3cccSCatalin Marinas It does not affect the MPCore. This option enables the ARM Ltd. 9859cba3cccSCatalin Marinas recommended workaround. 9869cba3cccSCatalin Marinas 9877ce236fcSCatalin Marinasconfig ARM_ERRATA_430973 9887ce236fcSCatalin Marinas bool "ARM errata: Stale prediction on replaced interworking branch" 9897ce236fcSCatalin Marinas depends on CPU_V7 9907ce236fcSCatalin Marinas help 9917ce236fcSCatalin Marinas This option enables the workaround for the 430973 Cortex-A8 9927ce236fcSCatalin Marinas (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb 9937ce236fcSCatalin Marinas interworking branch is replaced with another code sequence at the 9947ce236fcSCatalin Marinas same virtual address, whether due to self-modifying code or virtual 9957ce236fcSCatalin Marinas to physical address re-mapping, Cortex-A8 does not recover from the 9967ce236fcSCatalin Marinas stale interworking branch prediction. This results in Cortex-A8 9977ce236fcSCatalin Marinas executing the new code sequence in the incorrect ARM or Thumb state. 9987ce236fcSCatalin Marinas The workaround enables the BTB/BTAC operations by setting ACTLR.IBE 9997ce236fcSCatalin Marinas and also flushes the branch target cache at every context switch. 10007ce236fcSCatalin Marinas Note that setting specific bits in the ACTLR register may not be 10017ce236fcSCatalin Marinas available in non-secure mode. 10027ce236fcSCatalin Marinas 1003855c551fSCatalin Marinasconfig ARM_ERRATA_458693 1004855c551fSCatalin Marinas bool "ARM errata: Processor deadlock when a false hazard is created" 1005855c551fSCatalin Marinas depends on CPU_V7 1006855c551fSCatalin Marinas help 1007855c551fSCatalin Marinas This option enables the workaround for the 458693 Cortex-A8 (r2p0) 1008855c551fSCatalin Marinas erratum. For very specific sequences of memory operations, it is 1009855c551fSCatalin Marinas possible for a hazard condition intended for a cache line to instead 1010855c551fSCatalin Marinas be incorrectly associated with a different cache line. This false 1011855c551fSCatalin Marinas hazard might then cause a processor deadlock. The workaround enables 1012855c551fSCatalin Marinas the L1 caching of the NEON accesses and disables the PLD instruction 1013855c551fSCatalin Marinas in the ACTLR register. Note that setting specific bits in the ACTLR 1014855c551fSCatalin Marinas register may not be available in non-secure mode. 1015855c551fSCatalin Marinas 10160516e464SCatalin Marinasconfig ARM_ERRATA_460075 10170516e464SCatalin Marinas bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" 10180516e464SCatalin Marinas depends on CPU_V7 10190516e464SCatalin Marinas help 10200516e464SCatalin Marinas This option enables the workaround for the 460075 Cortex-A8 (r2p0) 10210516e464SCatalin Marinas erratum. Any asynchronous access to the L2 cache may encounter a 10220516e464SCatalin Marinas situation in which recent store transactions to the L2 cache are lost 10230516e464SCatalin Marinas and overwritten with stale memory contents from external memory. The 10240516e464SCatalin Marinas workaround disables the write-allocate mode for the L2 cache via the 10250516e464SCatalin Marinas ACTLR register. Note that setting specific bits in the ACTLR register 10260516e464SCatalin Marinas may not be available in non-secure mode. 10270516e464SCatalin Marinas 10289e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369 10299e65582aSSantosh Shilimkar bool "Clean & Invalidate maintenance operations do not invalidate clean lines" 10309e65582aSSantosh Shilimkar depends on CACHE_L2X0 && ARCH_OMAP4 10319e65582aSSantosh Shilimkar help 10329e65582aSSantosh Shilimkar The PL310 L2 cache controller implements three types of Clean & 10339e65582aSSantosh Shilimkar Invalidate maintenance operations: by Physical Address 10349e65582aSSantosh Shilimkar (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). 10359e65582aSSantosh Shilimkar They are architecturally defined to behave as the execution of a 10369e65582aSSantosh Shilimkar clean operation followed immediately by an invalidate operation, 10379e65582aSSantosh Shilimkar both performing to the same memory location. This functionality 10389e65582aSSantosh Shilimkar is not correctly implemented in PL310 as clean lines are not 10399e65582aSSantosh Shilimkar invalidated as a result of these operations. Note that this errata 10409e65582aSSantosh Shilimkar uses Texas Instrument's secure monitor api. 10411da177e4SLinus Torvaldsendmenu 10421da177e4SLinus Torvalds 10431da177e4SLinus Torvaldssource "arch/arm/common/Kconfig" 10441da177e4SLinus Torvalds 10451da177e4SLinus Torvaldsconfig FORCE_MAX_ZONEORDER 10461da177e4SLinus Torvalds int 10471da177e4SLinus Torvalds depends on SA1111 10481da177e4SLinus Torvalds default "9" 10491da177e4SLinus Torvalds 10501da177e4SLinus Torvaldsmenu "Bus support" 10511da177e4SLinus Torvalds 10521da177e4SLinus Torvaldsconfig ARM_AMBA 10531da177e4SLinus Torvalds bool 10541da177e4SLinus Torvalds 10551da177e4SLinus Torvaldsconfig ISA 10561da177e4SLinus Torvalds bool 10571da177e4SLinus Torvalds help 10581da177e4SLinus Torvalds Find out whether you have ISA slots on your motherboard. ISA is the 10591da177e4SLinus Torvalds name of a bus system, i.e. the way the CPU talks to the other stuff 10601da177e4SLinus Torvalds inside your box. Other bus systems are PCI, EISA, MicroChannel 10611da177e4SLinus Torvalds (MCA) or VESA. ISA is an older system, now being displaced by PCI; 10621da177e4SLinus Torvalds newer boards don't support it. If you have ISA, say Y, otherwise N. 10631da177e4SLinus Torvalds 1064065909b9SRussell King# Select ISA DMA controller support 10651da177e4SLinus Torvaldsconfig ISA_DMA 10661da177e4SLinus Torvalds bool 1067065909b9SRussell King select ISA_DMA_API 10681da177e4SLinus Torvalds 1069065909b9SRussell King# Select ISA DMA interface 10705cae841bSAl Viroconfig ISA_DMA_API 10715cae841bSAl Viro bool 10725cae841bSAl Viro 10731da177e4SLinus Torvaldsconfig PCI 1074a0113a99SMike Rapoport bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE 10751da177e4SLinus Torvalds help 10761da177e4SLinus Torvalds Find out whether you have a PCI motherboard. PCI is the name of a 10771da177e4SLinus Torvalds bus system, i.e. the way the CPU talks to the other stuff inside 10781da177e4SLinus Torvalds your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or 10791da177e4SLinus Torvalds VESA. If you have PCI, say Y, otherwise N. 10801da177e4SLinus Torvalds 108152882173SAnton Vorontsovconfig PCI_DOMAINS 108252882173SAnton Vorontsov bool 108352882173SAnton Vorontsov depends on PCI 108452882173SAnton Vorontsov 108536e23590SMatthew Wilcoxconfig PCI_SYSCALL 108636e23590SMatthew Wilcox def_bool PCI 108736e23590SMatthew Wilcox 10881da177e4SLinus Torvalds# Select the host bridge type 10891da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505 10901da177e4SLinus Torvalds bool 10911da177e4SLinus Torvalds depends on PCI && ARCH_SHARK 10921da177e4SLinus Torvalds default y 10931da177e4SLinus Torvalds 1094a0113a99SMike Rapoportconfig PCI_HOST_ITE8152 1095a0113a99SMike Rapoport bool 1096a0113a99SMike Rapoport depends on PCI && MACH_ARMCORE 1097a0113a99SMike Rapoport default y 1098a0113a99SMike Rapoport select DMABOUNCE 1099a0113a99SMike Rapoport 11001da177e4SLinus Torvaldssource "drivers/pci/Kconfig" 11011da177e4SLinus Torvalds 11021da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig" 11031da177e4SLinus Torvalds 11041da177e4SLinus Torvaldsendmenu 11051da177e4SLinus Torvalds 11061da177e4SLinus Torvaldsmenu "Kernel Features" 11071da177e4SLinus Torvalds 11080567a0c0SKevin Hilmansource "kernel/time/Kconfig" 11090567a0c0SKevin Hilman 11101da177e4SLinus Torvaldsconfig SMP 11111da177e4SLinus Torvalds bool "Symmetric Multi-Processing (EXPERIMENTAL)" 111242578c82SRussell King depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ 111359ac59f6SRussell King MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\ 1114*cc0e72b8SChanghwan Youn ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_S5PV310) 1115bc28248eSRussell King depends on GENERIC_CLOCKEVENTS 1116f6dd9fa5SJens Axboe select USE_GENERIC_SMP_HELPERS 1117*cc0e72b8SChanghwan Youn select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 ||\ 1118*cc0e72b8SChanghwan Youn ARCH_S5PV310) 11191da177e4SLinus Torvalds help 11201da177e4SLinus Torvalds This enables support for systems with more than one CPU. If you have 11211da177e4SLinus Torvalds a system with only one CPU, like most personal computers, say N. If 11221da177e4SLinus Torvalds you have a system with more than one CPU, say Y. 11231da177e4SLinus Torvalds 11241da177e4SLinus Torvalds If you say N here, the kernel will run on single and multiprocessor 11251da177e4SLinus Torvalds machines, but will use only one CPU of a multiprocessor machine. If 11261da177e4SLinus Torvalds you say Y here, the kernel will run on many, but not all, single 11271da177e4SLinus Torvalds processor machines. On a single processor machine, the kernel will 11281da177e4SLinus Torvalds run faster if you say N here. 11291da177e4SLinus Torvalds 113003502faaSAdrian Bunk See also <file:Documentation/i386/IO-APIC.txt>, 11311da177e4SLinus Torvalds <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at 11321da177e4SLinus Torvalds <http://www.linuxdoc.org/docs.html#howto>. 11331da177e4SLinus Torvalds 11341da177e4SLinus Torvalds If you don't know what to do here, say N. 11351da177e4SLinus Torvalds 1136a8cbcd92SRussell Kingconfig HAVE_ARM_SCU 1137a8cbcd92SRussell King bool 1138a8cbcd92SRussell King depends on SMP 1139a8cbcd92SRussell King help 1140a8cbcd92SRussell King This option enables support for the ARM system coherency unit 1141a8cbcd92SRussell King 1142f32f4ce2SRussell Kingconfig HAVE_ARM_TWD 1143f32f4ce2SRussell King bool 1144f32f4ce2SRussell King depends on SMP 1145f32f4ce2SRussell King help 1146f32f4ce2SRussell King This options enables support for the ARM timer and watchdog unit 1147f32f4ce2SRussell King 11488d5796d2SLennert Buytenhekchoice 11498d5796d2SLennert Buytenhek prompt "Memory split" 11508d5796d2SLennert Buytenhek default VMSPLIT_3G 11518d5796d2SLennert Buytenhek help 11528d5796d2SLennert Buytenhek Select the desired split between kernel and user memory. 11538d5796d2SLennert Buytenhek 11548d5796d2SLennert Buytenhek If you are not absolutely sure what you are doing, leave this 11558d5796d2SLennert Buytenhek option alone! 11568d5796d2SLennert Buytenhek 11578d5796d2SLennert Buytenhek config VMSPLIT_3G 11588d5796d2SLennert Buytenhek bool "3G/1G user/kernel split" 11598d5796d2SLennert Buytenhek config VMSPLIT_2G 11608d5796d2SLennert Buytenhek bool "2G/2G user/kernel split" 11618d5796d2SLennert Buytenhek config VMSPLIT_1G 11628d5796d2SLennert Buytenhek bool "1G/3G user/kernel split" 11638d5796d2SLennert Buytenhekendchoice 11648d5796d2SLennert Buytenhek 11658d5796d2SLennert Buytenhekconfig PAGE_OFFSET 11668d5796d2SLennert Buytenhek hex 11678d5796d2SLennert Buytenhek default 0x40000000 if VMSPLIT_1G 11688d5796d2SLennert Buytenhek default 0x80000000 if VMSPLIT_2G 11698d5796d2SLennert Buytenhek default 0xC0000000 11708d5796d2SLennert Buytenhek 11711da177e4SLinus Torvaldsconfig NR_CPUS 11721da177e4SLinus Torvalds int "Maximum number of CPUs (2-32)" 11731da177e4SLinus Torvalds range 2 32 11741da177e4SLinus Torvalds depends on SMP 11751da177e4SLinus Torvalds default "4" 11761da177e4SLinus Torvalds 1177a054a811SRussell Kingconfig HOTPLUG_CPU 1178a054a811SRussell King bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 1179a054a811SRussell King depends on SMP && HOTPLUG && EXPERIMENTAL 1180a054a811SRussell King help 1181a054a811SRussell King Say Y here to experiment with turning CPUs off and on. CPUs 1182a054a811SRussell King can be controlled through /sys/devices/system/cpu. 1183a054a811SRussell King 118437ee16aeSRussell Kingconfig LOCAL_TIMERS 118537ee16aeSRussell King bool "Use local timer interrupts" 118642578c82SRussell King depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ 1187*cc0e72b8SChanghwan Youn REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \ 1188*cc0e72b8SChanghwan Youn ARCH_U8500 || ARCH_S5PV310) 118937ee16aeSRussell King default y 1190*cc0e72b8SChanghwan Youn select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_S5PV310) 119137ee16aeSRussell King help 119237ee16aeSRussell King Enable support for local timers on SMP platforms, rather then the 119337ee16aeSRussell King legacy IPI broadcast method. Local timers allows the system 119437ee16aeSRussell King accounting to be spread across the timer interval, preventing a 119537ee16aeSRussell King "thundering herd" at every timer tick. 119637ee16aeSRussell King 1197d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt 11981da177e4SLinus Torvalds 1199f8065813SRussell Kingconfig HZ 1200f8065813SRussell King int 1201f8065813SRussell King default 128 if ARCH_L7200 1202*cc0e72b8SChanghwan Youn default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || \ 1203*cc0e72b8SChanghwan Youn ARCH_S5PV210 || ARCH_S5PV310 1204bfe65704SRussell King default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER 12055248c657SDavid Brownell default AT91_TIMER_HZ if ARCH_AT91 1206f8065813SRussell King default 100 1207f8065813SRussell King 120816c79651SCatalin Marinasconfig THUMB2_KERNEL 120916c79651SCatalin Marinas bool "Compile the kernel in Thumb-2 mode" 121016c79651SCatalin Marinas depends on CPU_V7 && EXPERIMENTAL 121116c79651SCatalin Marinas select AEABI 121216c79651SCatalin Marinas select ARM_ASM_UNIFIED 121316c79651SCatalin Marinas help 121416c79651SCatalin Marinas By enabling this option, the kernel will be compiled in 121516c79651SCatalin Marinas Thumb-2 mode. A compiler/assembler that understand the unified 121616c79651SCatalin Marinas ARM-Thumb syntax is needed. 121716c79651SCatalin Marinas 121816c79651SCatalin Marinas If unsure, say N. 121916c79651SCatalin Marinas 12200becb088SCatalin Marinasconfig ARM_ASM_UNIFIED 12210becb088SCatalin Marinas bool 12220becb088SCatalin Marinas 1223704bdda0SNicolas Pitreconfig AEABI 1224704bdda0SNicolas Pitre bool "Use the ARM EABI to compile the kernel" 1225704bdda0SNicolas Pitre help 1226704bdda0SNicolas Pitre This option allows for the kernel to be compiled using the latest 1227704bdda0SNicolas Pitre ARM ABI (aka EABI). This is only useful if you are using a user 1228704bdda0SNicolas Pitre space environment that is also compiled with EABI. 1229704bdda0SNicolas Pitre 1230704bdda0SNicolas Pitre Since there are major incompatibilities between the legacy ABI and 1231704bdda0SNicolas Pitre EABI, especially with regard to structure member alignment, this 1232704bdda0SNicolas Pitre option also changes the kernel syscall calling convention to 1233704bdda0SNicolas Pitre disambiguate both ABIs and allow for backward compatibility support 1234704bdda0SNicolas Pitre (selected with CONFIG_OABI_COMPAT). 1235704bdda0SNicolas Pitre 1236704bdda0SNicolas Pitre To use this you need GCC version 4.0.0 or later. 1237704bdda0SNicolas Pitre 12386c90c872SNicolas Pitreconfig OABI_COMPAT 1239a73a3ff1SRussell King bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" 124061c484d4SNicolas Pitre depends on AEABI && EXPERIMENTAL 12416c90c872SNicolas Pitre default y 12426c90c872SNicolas Pitre help 12436c90c872SNicolas Pitre This option preserves the old syscall interface along with the 12446c90c872SNicolas Pitre new (ARM EABI) one. It also provides a compatibility layer to 12456c90c872SNicolas Pitre intercept syscalls that have structure arguments which layout 12466c90c872SNicolas Pitre in memory differs between the legacy ABI and the new ARM EABI 12476c90c872SNicolas Pitre (only for non "thumb" binaries). This option adds a tiny 12486c90c872SNicolas Pitre overhead to all syscalls and produces a slightly larger kernel. 12496c90c872SNicolas Pitre If you know you'll be using only pure EABI user space then you 12506c90c872SNicolas Pitre can say N here. If this option is not selected and you attempt 12516c90c872SNicolas Pitre to execute a legacy ABI binary then the result will be 12526c90c872SNicolas Pitre UNPREDICTABLE (in fact it can be predicted that it won't work 12536c90c872SNicolas Pitre at all). If in doubt say Y. 12546c90c872SNicolas Pitre 1255eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL 1256e80d6a24SMel Gorman bool 1257e80d6a24SMel Gorman 125807a2f737SRussell King# Discontigmem is deprecated 12593f22ab27SDave Hansenconfig ARCH_DISCONTIGMEM_ENABLE 12601da177e4SLinus Torvalds bool 12611da177e4SLinus Torvalds 126205944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE 126305944d74SRussell King bool 126405944d74SRussell King 126507a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT 126607a2f737SRussell King def_bool ARCH_SPARSEMEM_ENABLE 126707a2f737SRussell King 126805944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL 126907a2f737SRussell King def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE 127005944d74SRussell King 1271c80d79d7SYasunori Gotoconfig NODES_SHIFT 1272c80d79d7SYasunori Goto int 1273c80d79d7SYasunori Goto default "4" if ARCH_LH7A40X 1274c80d79d7SYasunori Goto default "2" 1275c80d79d7SYasunori Goto depends on NEED_MULTIPLE_NODES 1276c80d79d7SYasunori Goto 1277053a96caSNicolas Pitreconfig HIGHMEM 1278053a96caSNicolas Pitre bool "High Memory Support (EXPERIMENTAL)" 1279053a96caSNicolas Pitre depends on MMU && EXPERIMENTAL 1280053a96caSNicolas Pitre help 1281053a96caSNicolas Pitre The address space of ARM processors is only 4 Gigabytes large 1282053a96caSNicolas Pitre and it has to accommodate user address space, kernel address 1283053a96caSNicolas Pitre space as well as some memory mapped IO. That means that, if you 1284053a96caSNicolas Pitre have a large amount of physical memory and/or IO, not all of the 1285053a96caSNicolas Pitre memory can be "permanently mapped" by the kernel. The physical 1286053a96caSNicolas Pitre memory that is not permanently mapped is called "high memory". 1287053a96caSNicolas Pitre 1288053a96caSNicolas Pitre Depending on the selected kernel/user memory split, minimum 1289053a96caSNicolas Pitre vmalloc space and actual amount of RAM, you may not need this 1290053a96caSNicolas Pitre option which should result in a slightly faster kernel. 1291053a96caSNicolas Pitre 1292053a96caSNicolas Pitre If unsure, say n. 1293053a96caSNicolas Pitre 129465cec8e3SRussell Kingconfig HIGHPTE 129565cec8e3SRussell King bool "Allocate 2nd-level pagetables from highmem" 129665cec8e3SRussell King depends on HIGHMEM 129765cec8e3SRussell King depends on !OUTER_CACHE 129865cec8e3SRussell King 12991b8873a0SJamie Ilesconfig HW_PERF_EVENTS 13001b8873a0SJamie Iles bool "Enable hardware performance counter support for perf events" 1301fe166148SWill Deacon depends on PERF_EVENTS && CPU_HAS_PMU 13021b8873a0SJamie Iles default y 13031b8873a0SJamie Iles help 13041b8873a0SJamie Iles Enable hardware performance counter support for perf events. If 13051b8873a0SJamie Iles disabled, perf events will use software events only. 13061b8873a0SJamie Iles 13073f22ab27SDave Hansensource "mm/Kconfig" 13083f22ab27SDave Hansen 13091da177e4SLinus Torvaldsconfig LEDS 13101da177e4SLinus Torvalds bool "Timer and CPU usage LEDs" 1311e055d5bfSAdrian Bunk depends on ARCH_CDB89712 || ARCH_EBSA110 || \ 13128c8fdbc9SSascha Hauer ARCH_EBSA285 || ARCH_INTEGRATOR || \ 13131da177e4SLinus Torvalds ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ 13141da177e4SLinus Torvalds ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ 131573a59c1cSSAN People ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ 131625329671SJürgen Schindele ARCH_AT91 || ARCH_DAVINCI || \ 1317ff3042fbSColin Tuckley ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW 13181da177e4SLinus Torvalds help 13191da177e4SLinus Torvalds If you say Y here, the LEDs on your machine will be used 13201da177e4SLinus Torvalds to provide useful information about your current system status. 13211da177e4SLinus Torvalds 13221da177e4SLinus Torvalds If you are compiling a kernel for a NetWinder or EBSA-285, you will 13231da177e4SLinus Torvalds be able to select which LEDs are active using the options below. If 13241da177e4SLinus Torvalds you are compiling a kernel for the EBSA-110 or the LART however, the 13251da177e4SLinus Torvalds red LED will simply flash regularly to indicate that the system is 13261da177e4SLinus Torvalds still functional. It is safe to say Y here if you have a CATS 13271da177e4SLinus Torvalds system, but the driver will do nothing. 13281da177e4SLinus Torvalds 13291da177e4SLinus Torvaldsconfig LEDS_TIMER 13301da177e4SLinus Torvalds bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ 1331eebdf7d7SDavid Brownell OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ 1332eebdf7d7SDavid Brownell || MACH_OMAP_PERSEUS2 13331da177e4SLinus Torvalds depends on LEDS 13340567a0c0SKevin Hilman depends on !GENERIC_CLOCKEVENTS 13351da177e4SLinus Torvalds default y if ARCH_EBSA110 13361da177e4SLinus Torvalds help 13371da177e4SLinus Torvalds If you say Y here, one of the system LEDs (the green one on the 13381da177e4SLinus Torvalds NetWinder, the amber one on the EBSA285, or the red one on the LART) 13391da177e4SLinus Torvalds will flash regularly to indicate that the system is still 13401da177e4SLinus Torvalds operational. This is mainly useful to kernel hackers who are 13411da177e4SLinus Torvalds debugging unstable kernels. 13421da177e4SLinus Torvalds 13431da177e4SLinus Torvalds The LART uses the same LED for both Timer LED and CPU usage LED 13441da177e4SLinus Torvalds functions. You may choose to use both, but the Timer LED function 13451da177e4SLinus Torvalds will overrule the CPU usage LED. 13461da177e4SLinus Torvalds 13471da177e4SLinus Torvaldsconfig LEDS_CPU 13481da177e4SLinus Torvalds bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ 1349eebdf7d7SDavid Brownell !ARCH_OMAP) \ 1350eebdf7d7SDavid Brownell || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ 1351eebdf7d7SDavid Brownell || MACH_OMAP_PERSEUS2 13521da177e4SLinus Torvalds depends on LEDS 13531da177e4SLinus Torvalds help 13541da177e4SLinus Torvalds If you say Y here, the red LED will be used to give a good real 13551da177e4SLinus Torvalds time indication of CPU usage, by lighting whenever the idle task 13561da177e4SLinus Torvalds is not currently executing. 13571da177e4SLinus Torvalds 13581da177e4SLinus Torvalds The LART uses the same LED for both Timer LED and CPU usage LED 13591da177e4SLinus Torvalds functions. You may choose to use both, but the Timer LED function 13601da177e4SLinus Torvalds will overrule the CPU usage LED. 13611da177e4SLinus Torvalds 13621da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP 13631da177e4SLinus Torvalds bool 1364f12d0d7cSHyok S. Choi depends on CPU_CP15_MMU 13651da177e4SLinus Torvalds default y if !ARCH_EBSA110 1366e119bfffSRussell King select HAVE_PROC_CPU if PROC_FS 13671da177e4SLinus Torvalds help 13681da177e4SLinus Torvalds ARM processors cannot fetch/store information which is not 13691da177e4SLinus Torvalds naturally aligned on the bus, i.e., a 4 byte fetch must start at an 13701da177e4SLinus Torvalds address divisible by 4. On 32-bit ARM processors, these non-aligned 13711da177e4SLinus Torvalds fetch/store instructions will be emulated in software if you say 13721da177e4SLinus Torvalds here, which has a severe performance impact. This is necessary for 13731da177e4SLinus Torvalds correct operation of some network protocols. With an IP-only 13741da177e4SLinus Torvalds configuration it is safe to say N, otherwise say Y. 13751da177e4SLinus Torvalds 137639ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY 137739ec58f3SLennert Buytenhek bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" 137839ec58f3SLennert Buytenhek depends on MMU && EXPERIMENTAL 137939ec58f3SLennert Buytenhek default y if CPU_FEROCEON 138039ec58f3SLennert Buytenhek help 138139ec58f3SLennert Buytenhek Implement faster copy_to_user and clear_user methods for CPU 138239ec58f3SLennert Buytenhek cores where a 8-word STM instruction give significantly higher 138339ec58f3SLennert Buytenhek memory write throughput than a sequence of individual 32bit stores. 138439ec58f3SLennert Buytenhek 138539ec58f3SLennert Buytenhek A possible side effect is a slight increase in scheduling latency 138639ec58f3SLennert Buytenhek between threads sharing the same address space if they invoke 138739ec58f3SLennert Buytenhek such copy operations with large buffers. 138839ec58f3SLennert Buytenhek 138939ec58f3SLennert Buytenhek However, if the CPU data cache is using a write-allocate mode, 139039ec58f3SLennert Buytenhek this option is unlikely to provide any performance gain. 139139ec58f3SLennert Buytenhek 13921da177e4SLinus Torvaldsendmenu 13931da177e4SLinus Torvalds 13941da177e4SLinus Torvaldsmenu "Boot options" 13951da177e4SLinus Torvalds 13961da177e4SLinus Torvalds# Compressed boot loader in ROM. Yes, we really want to ask about 13971da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files. 13981da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT 13991da177e4SLinus Torvalds hex "Compressed ROM boot loader base address" 14001da177e4SLinus Torvalds default "0" 14011da177e4SLinus Torvalds help 14021da177e4SLinus Torvalds The physical address at which the ROM-able zImage is to be 14031da177e4SLinus Torvalds placed in the target. Platforms which normally make use of 14041da177e4SLinus Torvalds ROM-able zImage formats normally set this to a suitable 14051da177e4SLinus Torvalds value in their defconfig file. 14061da177e4SLinus Torvalds 14071da177e4SLinus Torvalds If ZBOOT_ROM is not enabled, this has no effect. 14081da177e4SLinus Torvalds 14091da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS 14101da177e4SLinus Torvalds hex "Compressed ROM boot loader BSS address" 14111da177e4SLinus Torvalds default "0" 14121da177e4SLinus Torvalds help 1413f8c440b2SDan Fandrich The base address of an area of read/write memory in the target 1414f8c440b2SDan Fandrich for the ROM-able zImage which must be available while the 1415f8c440b2SDan Fandrich decompressor is running. It must be large enough to hold the 1416f8c440b2SDan Fandrich entire decompressed kernel plus an additional 128 KiB. 1417f8c440b2SDan Fandrich Platforms which normally make use of ROM-able zImage formats 1418f8c440b2SDan Fandrich normally set this to a suitable value in their defconfig file. 14191da177e4SLinus Torvalds 14201da177e4SLinus Torvalds If ZBOOT_ROM is not enabled, this has no effect. 14211da177e4SLinus Torvalds 14221da177e4SLinus Torvaldsconfig ZBOOT_ROM 14231da177e4SLinus Torvalds bool "Compressed boot loader in ROM/flash" 14241da177e4SLinus Torvalds depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS 14251da177e4SLinus Torvalds help 14261da177e4SLinus Torvalds Say Y here if you intend to execute your compressed kernel image 14271da177e4SLinus Torvalds (zImage) directly from ROM or flash. If unsure, say N. 14281da177e4SLinus Torvalds 14291da177e4SLinus Torvaldsconfig CMDLINE 14301da177e4SLinus Torvalds string "Default kernel command string" 14311da177e4SLinus Torvalds default "" 14321da177e4SLinus Torvalds help 14331da177e4SLinus Torvalds On some architectures (EBSA110 and CATS), there is currently no way 14341da177e4SLinus Torvalds for the boot loader to pass arguments to the kernel. For these 14351da177e4SLinus Torvalds architectures, you should supply some command-line options at build 14361da177e4SLinus Torvalds time by entering them here. As a minimum, you should specify the 14371da177e4SLinus Torvalds memory size and the root device (e.g., mem=64M root=/dev/nfs). 14381da177e4SLinus Torvalds 143992d2040dSAlexander Hollerconfig CMDLINE_FORCE 144092d2040dSAlexander Holler bool "Always use the default kernel command string" 144192d2040dSAlexander Holler depends on CMDLINE != "" 144292d2040dSAlexander Holler help 144392d2040dSAlexander Holler Always use the default kernel command string, even if the boot 144492d2040dSAlexander Holler loader passes other arguments to the kernel. 144592d2040dSAlexander Holler This is useful if you cannot or don't want to change the 144692d2040dSAlexander Holler command-line options your boot loader passes to the kernel. 144792d2040dSAlexander Holler 144892d2040dSAlexander Holler If unsure, say N. 144992d2040dSAlexander Holler 14501da177e4SLinus Torvaldsconfig XIP_KERNEL 14511da177e4SLinus Torvalds bool "Kernel Execute-In-Place from ROM" 14521da177e4SLinus Torvalds depends on !ZBOOT_ROM 14531da177e4SLinus Torvalds help 14541da177e4SLinus Torvalds Execute-In-Place allows the kernel to run from non-volatile storage 14551da177e4SLinus Torvalds directly addressable by the CPU, such as NOR flash. This saves RAM 14561da177e4SLinus Torvalds space since the text section of the kernel is not loaded from flash 14571da177e4SLinus Torvalds to RAM. Read-write sections, such as the data section and stack, 14581da177e4SLinus Torvalds are still copied to RAM. The XIP kernel is not compressed since 14591da177e4SLinus Torvalds it has to run directly from flash, so it will take more space to 14601da177e4SLinus Torvalds store it. The flash address used to link the kernel object files, 14611da177e4SLinus Torvalds and for storing it, is configuration dependent. Therefore, if you 14621da177e4SLinus Torvalds say Y here, you must know the proper physical address where to 14631da177e4SLinus Torvalds store the kernel image depending on your own flash memory usage. 14641da177e4SLinus Torvalds 14651da177e4SLinus Torvalds Also note that the make target becomes "make xipImage" rather than 14661da177e4SLinus Torvalds "make zImage" or "make Image". The final kernel binary to put in 14671da177e4SLinus Torvalds ROM memory will be arch/arm/boot/xipImage. 14681da177e4SLinus Torvalds 14691da177e4SLinus Torvalds If unsure, say N. 14701da177e4SLinus Torvalds 14711da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR 14721da177e4SLinus Torvalds hex "XIP Kernel Physical Location" 14731da177e4SLinus Torvalds depends on XIP_KERNEL 14741da177e4SLinus Torvalds default "0x00080000" 14751da177e4SLinus Torvalds help 14761da177e4SLinus Torvalds This is the physical address in your flash memory the kernel will 14771da177e4SLinus Torvalds be linked for and stored to. This address is dependent on your 14781da177e4SLinus Torvalds own flash usage. 14791da177e4SLinus Torvalds 1480c587e4a6SRichard Purdieconfig KEXEC 1481c587e4a6SRichard Purdie bool "Kexec system call (EXPERIMENTAL)" 1482c587e4a6SRichard Purdie depends on EXPERIMENTAL 1483c587e4a6SRichard Purdie help 1484c587e4a6SRichard Purdie kexec is a system call that implements the ability to shutdown your 1485c587e4a6SRichard Purdie current kernel, and to start another kernel. It is like a reboot 148601dd2fbfSMatt LaPlante but it is independent of the system firmware. And like a reboot 1487c587e4a6SRichard Purdie you can start any kernel with it, not just Linux. 1488c587e4a6SRichard Purdie 1489c587e4a6SRichard Purdie It is an ongoing process to be certain the hardware in a machine 1490c587e4a6SRichard Purdie is properly shutdown, so do not be surprised if this code does not 1491c587e4a6SRichard Purdie initially work for you. It may help to enable device hotplugging 1492c587e4a6SRichard Purdie support. 1493c587e4a6SRichard Purdie 14944cd9d6f7SRichard Purdieconfig ATAGS_PROC 14954cd9d6f7SRichard Purdie bool "Export atags in procfs" 1496b98d7291SUli Luckas depends on KEXEC 1497b98d7291SUli Luckas default y 14984cd9d6f7SRichard Purdie help 14994cd9d6f7SRichard Purdie Should the atags used to boot the kernel be exported in an "atags" 15004cd9d6f7SRichard Purdie file in procfs. Useful with kexec. 15014cd9d6f7SRichard Purdie 15021da177e4SLinus Torvaldsendmenu 15031da177e4SLinus Torvalds 1504ac9d7efcSRussell Kingmenu "CPU Power Management" 15051da177e4SLinus Torvalds 150689c52ed4SBen Dooksif ARCH_HAS_CPUFREQ 15071da177e4SLinus Torvalds 15081da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig" 15091da177e4SLinus Torvalds 15101da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100 15111da177e4SLinus Torvalds bool 15121da177e4SLinus Torvalds 15131da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110 15141da177e4SLinus Torvalds bool 15151da177e4SLinus Torvalds 15161da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR 15171da177e4SLinus Torvalds tristate "CPUfreq driver for ARM Integrator CPUs" 15181da177e4SLinus Torvalds depends on ARCH_INTEGRATOR && CPU_FREQ 15191da177e4SLinus Torvalds default y 15201da177e4SLinus Torvalds help 15211da177e4SLinus Torvalds This enables the CPUfreq driver for ARM Integrator CPUs. 15221da177e4SLinus Torvalds 15231da177e4SLinus Torvalds For details, take a look at <file:Documentation/cpu-freq>. 15241da177e4SLinus Torvalds 15251da177e4SLinus Torvalds If in doubt, say Y. 15261da177e4SLinus Torvalds 15279e2697ffSRussell Kingconfig CPU_FREQ_PXA 15289e2697ffSRussell King bool 15299e2697ffSRussell King depends on CPU_FREQ && ARCH_PXA && PXA25x 15309e2697ffSRussell King default y 15319e2697ffSRussell King select CPU_FREQ_DEFAULT_GOV_USERSPACE 15329e2697ffSRussell King 1533b3748dddSMark Brownconfig CPU_FREQ_S3C64XX 1534b3748dddSMark Brown bool "CPUfreq support for Samsung S3C64XX CPUs" 1535b3748dddSMark Brown depends on CPU_FREQ && CPU_S3C6410 1536b3748dddSMark Brown 15379d56c02aSBen Dooksconfig CPU_FREQ_S3C 15389d56c02aSBen Dooks bool 15399d56c02aSBen Dooks help 15409d56c02aSBen Dooks Internal configuration node for common cpufreq on Samsung SoC 15419d56c02aSBen Dooks 15429d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX 15439d56c02aSBen Dooks bool "CPUfreq driver for Samsung S3C24XX series CPUs" 15449d56c02aSBen Dooks depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL 15459d56c02aSBen Dooks select CPU_FREQ_S3C 15469d56c02aSBen Dooks help 15479d56c02aSBen Dooks This enables the CPUfreq driver for the Samsung S3C24XX family 15489d56c02aSBen Dooks of CPUs. 15499d56c02aSBen Dooks 15509d56c02aSBen Dooks For details, take a look at <file:Documentation/cpu-freq>. 15519d56c02aSBen Dooks 15529d56c02aSBen Dooks If in doubt, say N. 15539d56c02aSBen Dooks 15549d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL 15559d56c02aSBen Dooks bool "Support CPUfreq changing of PLL frequency" 15569d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX && EXPERIMENTAL 15579d56c02aSBen Dooks help 15589d56c02aSBen Dooks Compile in support for changing the PLL frequency from the 15599d56c02aSBen Dooks S3C24XX series CPUfreq driver. The PLL takes time to settle 15609d56c02aSBen Dooks after a frequency change, so by default it is not enabled. 15619d56c02aSBen Dooks 15629d56c02aSBen Dooks This also means that the PLL tables for the selected CPU(s) will 15639d56c02aSBen Dooks be built which may increase the size of the kernel image. 15649d56c02aSBen Dooks 15659d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG 15669d56c02aSBen Dooks bool "Debug CPUfreq Samsung driver core" 15679d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX 15689d56c02aSBen Dooks help 15699d56c02aSBen Dooks Enable s3c_freq_dbg for the Samsung S3C CPUfreq core 15709d56c02aSBen Dooks 15719d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG 15729d56c02aSBen Dooks bool "Debug CPUfreq Samsung driver IO timing" 15739d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX 15749d56c02aSBen Dooks help 15759d56c02aSBen Dooks Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core 15769d56c02aSBen Dooks 1577e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS 1578e6d197a6SBen Dooks bool "Export debugfs for CPUFreq" 1579e6d197a6SBen Dooks depends on CPU_FREQ_S3C24XX && DEBUG_FS 1580e6d197a6SBen Dooks help 1581e6d197a6SBen Dooks Export status information via debugfs. 1582e6d197a6SBen Dooks 15831da177e4SLinus Torvaldsendif 15841da177e4SLinus Torvalds 1585ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig" 1586ac9d7efcSRussell King 1587ac9d7efcSRussell Kingendmenu 1588ac9d7efcSRussell King 15891da177e4SLinus Torvaldsmenu "Floating point emulation" 15901da177e4SLinus Torvalds 15911da177e4SLinus Torvaldscomment "At least one emulation must be selected" 15921da177e4SLinus Torvalds 15931da177e4SLinus Torvaldsconfig FPE_NWFPE 15941da177e4SLinus Torvalds bool "NWFPE math emulation" 15958993a44cSNicolas Pitre depends on !AEABI || OABI_COMPAT 15961da177e4SLinus Torvalds ---help--- 15971da177e4SLinus Torvalds Say Y to include the NWFPE floating point emulator in the kernel. 15981da177e4SLinus Torvalds This is necessary to run most binaries. Linux does not currently 15991da177e4SLinus Torvalds support floating point hardware so you need to say Y here even if 16001da177e4SLinus Torvalds your machine has an FPA or floating point co-processor podule. 16011da177e4SLinus Torvalds 16021da177e4SLinus Torvalds You may say N here if you are going to load the Acorn FPEmulator 16031da177e4SLinus Torvalds early in the bootup. 16041da177e4SLinus Torvalds 16051da177e4SLinus Torvaldsconfig FPE_NWFPE_XP 16061da177e4SLinus Torvalds bool "Support extended precision" 1607bedf142bSLennert Buytenhek depends on FPE_NWFPE 16081da177e4SLinus Torvalds help 16091da177e4SLinus Torvalds Say Y to include 80-bit support in the kernel floating-point 16101da177e4SLinus Torvalds emulator. Otherwise, only 32 and 64-bit support is compiled in. 16111da177e4SLinus Torvalds Note that gcc does not generate 80-bit operations by default, 16121da177e4SLinus Torvalds so in most cases this option only enlarges the size of the 16131da177e4SLinus Torvalds floating point emulator without any good reason. 16141da177e4SLinus Torvalds 16151da177e4SLinus Torvalds You almost surely want to say N here. 16161da177e4SLinus Torvalds 16171da177e4SLinus Torvaldsconfig FPE_FASTFPE 16181da177e4SLinus Torvalds bool "FastFPE math emulation (EXPERIMENTAL)" 16198993a44cSNicolas Pitre depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL 16201da177e4SLinus Torvalds ---help--- 16211da177e4SLinus Torvalds Say Y here to include the FAST floating point emulator in the kernel. 16221da177e4SLinus Torvalds This is an experimental much faster emulator which now also has full 16231da177e4SLinus Torvalds precision for the mantissa. It does not support any exceptions. 16241da177e4SLinus Torvalds It is very simple, and approximately 3-6 times faster than NWFPE. 16251da177e4SLinus Torvalds 16261da177e4SLinus Torvalds It should be sufficient for most programs. It may be not suitable 16271da177e4SLinus Torvalds for scientific calculations, but you have to check this for yourself. 16281da177e4SLinus Torvalds If you do not feel you need a faster FP emulation you should better 16291da177e4SLinus Torvalds choose NWFPE. 16301da177e4SLinus Torvalds 16311da177e4SLinus Torvaldsconfig VFP 16321da177e4SLinus Torvalds bool "VFP-format floating point maths" 1633c00d4ffdSRussell King depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON 16341da177e4SLinus Torvalds help 16351da177e4SLinus Torvalds Say Y to include VFP support code in the kernel. This is needed 16361da177e4SLinus Torvalds if your hardware includes a VFP unit. 16371da177e4SLinus Torvalds 16381da177e4SLinus Torvalds Please see <file:Documentation/arm/VFP/release-notes.txt> for 16391da177e4SLinus Torvalds release notes and additional status information. 16401da177e4SLinus Torvalds 16411da177e4SLinus Torvalds Say N if your target does not have VFP hardware. 16421da177e4SLinus Torvalds 164325ebee02SCatalin Marinasconfig VFPv3 164425ebee02SCatalin Marinas bool 164525ebee02SCatalin Marinas depends on VFP 164625ebee02SCatalin Marinas default y if CPU_V7 164725ebee02SCatalin Marinas 1648b5872db4SCatalin Marinasconfig NEON 1649b5872db4SCatalin Marinas bool "Advanced SIMD (NEON) Extension support" 1650b5872db4SCatalin Marinas depends on VFPv3 && CPU_V7 1651b5872db4SCatalin Marinas help 1652b5872db4SCatalin Marinas Say Y to include support code for NEON, the ARMv7 Advanced SIMD 1653b5872db4SCatalin Marinas Extension. 1654b5872db4SCatalin Marinas 16551da177e4SLinus Torvaldsendmenu 16561da177e4SLinus Torvalds 16571da177e4SLinus Torvaldsmenu "Userspace binary formats" 16581da177e4SLinus Torvalds 16591da177e4SLinus Torvaldssource "fs/Kconfig.binfmt" 16601da177e4SLinus Torvalds 16611da177e4SLinus Torvaldsconfig ARTHUR 16621da177e4SLinus Torvalds tristate "RISC OS personality" 1663704bdda0SNicolas Pitre depends on !AEABI 16641da177e4SLinus Torvalds help 16651da177e4SLinus Torvalds Say Y here to include the kernel code necessary if you want to run 16661da177e4SLinus Torvalds Acorn RISC OS/Arthur binaries under Linux. This code is still very 16671da177e4SLinus Torvalds experimental; if this sounds frightening, say N and sleep in peace. 16681da177e4SLinus Torvalds You can also say M here to compile this support as a module (which 16691da177e4SLinus Torvalds will be called arthur). 16701da177e4SLinus Torvalds 16711da177e4SLinus Torvaldsendmenu 16721da177e4SLinus Torvalds 16731da177e4SLinus Torvaldsmenu "Power management options" 16741da177e4SLinus Torvalds 1675eceab4acSRussell Kingsource "kernel/power/Kconfig" 16761da177e4SLinus Torvalds 1677f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE 1678f4cb5700SJohannes Berg def_bool y 1679f4cb5700SJohannes Berg 16801da177e4SLinus Torvaldsendmenu 16811da177e4SLinus Torvalds 1682d5950b43SSam Ravnborgsource "net/Kconfig" 1683d5950b43SSam Ravnborg 1684ac25150fSUwe Kleine-Königsource "drivers/Kconfig" 16851da177e4SLinus Torvalds 16861da177e4SLinus Torvaldssource "fs/Kconfig" 16871da177e4SLinus Torvalds 16881da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug" 16891da177e4SLinus Torvalds 16901da177e4SLinus Torvaldssource "security/Kconfig" 16911da177e4SLinus Torvalds 16921da177e4SLinus Torvaldssource "crypto/Kconfig" 16931da177e4SLinus Torvalds 16941da177e4SLinus Torvaldssource "lib/Kconfig" 1695