11da177e4SLinus Torvaldsconfig ARM 21da177e4SLinus Torvalds bool 31da177e4SLinus Torvalds default y 4e17c6d56SDavid Woodhouse select HAVE_AOUT 52064c946SAdrian Bunk select HAVE_IDE 62778f620SRussell King select HAVE_MEMBLOCK 712b824fbSAlessandro Zummo select RTC_LIB 875e7153aSRalf Baechle select SYS_SUPPORTS_APM_EMULATION 9d4c7b1f9SWill Deacon select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI) 10fe166148SWill Deacon select HAVE_OPROFILE if (HAVE_PERF_EVENTS) 115cbad0ebSJason Wessel select HAVE_ARCH_KGDB 123f550096SMathieu Desnoyers select HAVE_KPROBES if (!XIP_KERNEL) 139edddaa2SAnanth N Mavinakayanahalli select HAVE_KRETPROBES if (HAVE_KPROBES) 14606576ceSSteven Rostedt select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) 1580be7a7fSRabin Vincent select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL) 1680be7a7fSRabin Vincent select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) 170e341af8SRabin Vincent select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) 181fe53268SDmitry Baryshkov select HAVE_GENERIC_DMA_COHERENT 19e7db7b42SAlbin Tonnerre select HAVE_KERNEL_GZIP 20e7db7b42SAlbin Tonnerre select HAVE_KERNEL_LZO 216e8699f7SAlbin Tonnerre select HAVE_KERNEL_LZMA 22e360adbeSPeter Zijlstra select HAVE_IRQ_WORK 237ada189fSJamie Iles select HAVE_PERF_EVENTS 247ada189fSJamie Iles select PERF_USE_VMALLOC 25e513f8bfSWill Deacon select HAVE_REGS_AND_STACK_ACCESS_API 2619852e59SWill Deacon select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7)) 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 41112f38a4SRussell Kingconfig HAVE_SCHED_CLOCK 42112f38a4SRussell King bool 43112f38a4SRussell King 440a938b97SDavid Brownellconfig GENERIC_GPIO 450a938b97SDavid Brownell bool 460a938b97SDavid Brownell 475cfc8ee0SJohn Stultzconfig ARCH_USES_GETTIMEOFFSET 485cfc8ee0SJohn Stultz bool 495cfc8ee0SJohn Stultz default n 50746140c7SKevin Hilman 510567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS 520567a0c0SKevin Hilman bool 530567a0c0SKevin Hilman 54a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST 55a8655e83SCatalin Marinas bool 56a8655e83SCatalin Marinas depends on GENERIC_CLOCKEVENTS 575388a6b2SRussell King default y if SMP 58a8655e83SCatalin Marinas 59bc581770SLinus Walleijconfig HAVE_TCM 60bc581770SLinus Walleij bool 61bc581770SLinus Walleij select GENERIC_ALLOCATOR 62bc581770SLinus Walleij 63e119bfffSRussell Kingconfig HAVE_PROC_CPU 64e119bfffSRussell King bool 65e119bfffSRussell King 665ea81769SAl Viroconfig NO_IOPORT 675ea81769SAl Viro bool 685ea81769SAl Viro 691da177e4SLinus Torvaldsconfig EISA 701da177e4SLinus Torvalds bool 711da177e4SLinus Torvalds ---help--- 721da177e4SLinus Torvalds The Extended Industry Standard Architecture (EISA) bus was 731da177e4SLinus Torvalds developed as an open alternative to the IBM MicroChannel bus. 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds The EISA bus provided some of the features of the IBM MicroChannel 761da177e4SLinus Torvalds bus while maintaining backward compatibility with cards made for 771da177e4SLinus Torvalds the older ISA bus. The EISA bus saw limited use between 1988 and 781da177e4SLinus Torvalds 1995 when it was made obsolete by the PCI bus. 791da177e4SLinus Torvalds 801da177e4SLinus Torvalds Say Y here if you are building a kernel for an EISA-based machine. 811da177e4SLinus Torvalds 821da177e4SLinus Torvalds Otherwise, say N. 831da177e4SLinus Torvalds 841da177e4SLinus Torvaldsconfig SBUS 851da177e4SLinus Torvalds bool 861da177e4SLinus Torvalds 871da177e4SLinus Torvaldsconfig MCA 881da177e4SLinus Torvalds bool 891da177e4SLinus Torvalds help 901da177e4SLinus Torvalds MicroChannel Architecture is found in some IBM PS/2 machines and 911da177e4SLinus Torvalds laptops. It is a bus system similar to PCI or ISA. See 921da177e4SLinus Torvalds <file:Documentation/mca.txt> (and especially the web page given 931da177e4SLinus Torvalds there) before attempting to build an MCA bus kernel. 941da177e4SLinus Torvalds 954a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS 964a2581a0SThomas Gleixner bool 974a2581a0SThomas Gleixner default y 984a2581a0SThomas Gleixner 99f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT 100f16fb1ecSRussell King bool 101f16fb1ecSRussell King default y 102f16fb1ecSRussell King 103f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT 104f76e9154SNicolas Pitre bool 105f76e9154SNicolas Pitre depends on !SMP 106f76e9154SNicolas Pitre default y 107f76e9154SNicolas Pitre 108f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT 109f16fb1ecSRussell King bool 110f16fb1ecSRussell King default y 111f16fb1ecSRussell King 1127ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT 1137ad1bcb2SRussell King bool 1147ad1bcb2SRussell King default y 1157ad1bcb2SRussell King 1164a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND 1174a2581a0SThomas Gleixner bool 1184a2581a0SThomas Gleixner default y 1194a2581a0SThomas Gleixner 1204a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE 1214a2581a0SThomas Gleixner bool 1224a2581a0SThomas Gleixner default y 1234a2581a0SThomas Gleixner 12495c354feSNick Pigginconfig GENERIC_LOCKBREAK 12595c354feSNick Piggin bool 12695c354feSNick Piggin default y 12795c354feSNick Piggin depends on SMP && PREEMPT 12895c354feSNick Piggin 1291da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK 1301da177e4SLinus Torvalds bool 1311da177e4SLinus Torvalds default y 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM 1341da177e4SLinus Torvalds bool 1351da177e4SLinus Torvalds 136f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32 137f0d1b0b3SDavid Howells bool 138f0d1b0b3SDavid Howells 139f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64 140f0d1b0b3SDavid Howells bool 141f0d1b0b3SDavid Howells 14289c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ 14389c52ed4SBen Dooks bool 14489c52ed4SBen Dooks help 14589c52ed4SBen Dooks Internal node to signify that the ARCH has CPUFREQ support 14689c52ed4SBen Dooks and that the relevant menu configurations are displayed for 14789c52ed4SBen Dooks it. 14889c52ed4SBen Dooks 149c7b0aff4SKevin Hilmanconfig ARCH_HAS_CPU_IDLE_WAIT 150c7b0aff4SKevin Hilman def_bool y 151c7b0aff4SKevin Hilman 152b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT 153b89c3b16SAkinobu Mita bool 154b89c3b16SAkinobu Mita default y 155b89c3b16SAkinobu Mita 1561da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY 1571da177e4SLinus Torvalds bool 1581da177e4SLinus Torvalds default y 1591da177e4SLinus Torvalds 160a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC 161a08b6b79Sviro@ZenIV.linux.org.uk bool 162a08b6b79Sviro@ZenIV.linux.org.uk 1635ac6da66SChristoph Lameterconfig ZONE_DMA 1645ac6da66SChristoph Lameter bool 1655ac6da66SChristoph Lameter 166ccd7ab7fSFUJITA Tomonoriconfig NEED_DMA_MAP_STATE 167ccd7ab7fSFUJITA Tomonori def_bool y 168ccd7ab7fSFUJITA Tomonori 1691da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA 1701da177e4SLinus Torvalds bool 1711da177e4SLinus Torvalds 1721da177e4SLinus Torvaldsconfig FIQ 1731da177e4SLinus Torvalds bool 1741da177e4SLinus Torvalds 175034d2f5aSAl Viroconfig ARCH_MTD_XIP 176034d2f5aSAl Viro bool 177034d2f5aSAl Viro 17860a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ 17960a752efSPaulius Zaleckas def_bool y 18060a752efSPaulius Zaleckas 181d6d502faSKukjin Kimconfig ARM_L1_CACHE_SHIFT_6 182d6d502faSKukjin Kim bool 183d6d502faSKukjin Kim help 184d6d502faSKukjin Kim Setting ARM L1 cache line size to 64 Bytes. 185d6d502faSKukjin Kim 186c760fc19SHyok S. Choiconfig VECTORS_BASE 187c760fc19SHyok S. Choi hex 1886afd6faeSHyok S. Choi default 0xffff0000 if MMU || CPU_HIGH_VECTOR 189c760fc19SHyok S. Choi default DRAM_BASE if REMAP_VECTORS_TO_RAM 190c760fc19SHyok S. Choi default 0x00000000 191c760fc19SHyok S. Choi help 192c760fc19SHyok S. Choi The base address of exception vectors. 193c760fc19SHyok S. Choi 1941da177e4SLinus Torvaldssource "init/Kconfig" 1951da177e4SLinus Torvalds 196dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer" 197dc52ddc0SMatt Helsley 1981da177e4SLinus Torvaldsmenu "System Type" 1991da177e4SLinus Torvalds 2003c427975SHyok S. Choiconfig MMU 2013c427975SHyok S. Choi bool "MMU-based Paged Memory Management Support" 2023c427975SHyok S. Choi default y 2033c427975SHyok S. Choi help 2043c427975SHyok S. Choi Select if you want MMU-based virtualised addressing space 2053c427975SHyok S. Choi support by paged memory management. If unsure, say 'Y'. 2063c427975SHyok S. Choi 207ccf50e23SRussell King# 208ccf50e23SRussell King# The "ARM system type" choice list is ordered alphabetically by option 209ccf50e23SRussell King# text. Please add new entries in the option alphabetic order. 210ccf50e23SRussell King# 2111da177e4SLinus Torvaldschoice 2121da177e4SLinus Torvalds prompt "ARM system type" 2136a0e2430SCatalin Marinas default ARCH_VERSATILE 2141da177e4SLinus Torvalds 2154af6fee1SDeepak Saxenaconfig ARCH_AAEC2000 2164af6fee1SDeepak Saxena bool "Agilent AAEC-2000 based" 217c750815eSRussell King select CPU_ARM920T 2184af6fee1SDeepak Saxena select ARM_AMBA 2199483a578SDavid Brownell select HAVE_CLK 2205cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 2214af6fee1SDeepak Saxena help 2224af6fee1SDeepak Saxena This enables support for systems based on the Agilent AAEC-2000 2234af6fee1SDeepak Saxena 2244af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR 2254af6fee1SDeepak Saxena bool "ARM Ltd. Integrator family" 2264af6fee1SDeepak Saxena select ARM_AMBA 22789c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 228d72fbdf0SRussell King select COMMON_CLKDEV 229c5a0adb5SRussell King select ICST 23013edd86dSRussell King select GENERIC_CLOCKEVENTS 231f4b8b319SRussell King select PLAT_VERSATILE 2324af6fee1SDeepak Saxena help 2334af6fee1SDeepak Saxena Support for ARM's Integrator platform. 2344af6fee1SDeepak Saxena 2354af6fee1SDeepak Saxenaconfig ARCH_REALVIEW 2364af6fee1SDeepak Saxena bool "ARM Ltd. RealView family" 2374af6fee1SDeepak Saxena select ARM_AMBA 238cf30fb4aSRussell King select COMMON_CLKDEV 239c5a0adb5SRussell King select ICST 240ae30ceacSCatalin Marinas select GENERIC_CLOCKEVENTS 241eb7fffa3SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 242f4b8b319SRussell King select PLAT_VERSATILE 243e3887714SRussell King select ARM_TIMER_SP804 244b56ba8aaSColin Tuckley select GPIO_PL061 if GPIOLIB 2454af6fee1SDeepak Saxena help 2464af6fee1SDeepak Saxena This enables support for ARM Ltd RealView boards. 2474af6fee1SDeepak Saxena 2484af6fee1SDeepak Saxenaconfig ARCH_VERSATILE 2494af6fee1SDeepak Saxena bool "ARM Ltd. Versatile family" 2504af6fee1SDeepak Saxena select ARM_AMBA 2514af6fee1SDeepak Saxena select ARM_VIC 25271a06da0SRussell King select COMMON_CLKDEV 253c5a0adb5SRussell King select ICST 25489df1272SKevin Hilman select GENERIC_CLOCKEVENTS 255bbeddc43SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 256f4b8b319SRussell King select PLAT_VERSATILE 257e3887714SRussell King select ARM_TIMER_SP804 2584af6fee1SDeepak Saxena help 2594af6fee1SDeepak Saxena This enables support for ARM Ltd Versatile board. 2604af6fee1SDeepak Saxena 261ceade897SRussell Kingconfig ARCH_VEXPRESS 262ceade897SRussell King bool "ARM Ltd. Versatile Express family" 263ceade897SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 264ceade897SRussell King select ARM_AMBA 265ceade897SRussell King select ARM_TIMER_SP804 266ceade897SRussell King select COMMON_CLKDEV 267ceade897SRussell King select GENERIC_CLOCKEVENTS 268ceade897SRussell King select HAVE_CLK 269ceade897SRussell King select ICST 270ceade897SRussell King select PLAT_VERSATILE 271ceade897SRussell King help 272ceade897SRussell King This enables support for the ARM Ltd Versatile Express boards. 273ceade897SRussell King 2748fc5ffa0SAndrew Victorconfig ARCH_AT91 2758fc5ffa0SAndrew Victor bool "Atmel AT91" 276f373e8c0SRyan Mallon select ARCH_REQUIRE_GPIOLIB 27793686ae8SDavid Brownell select HAVE_CLK 2784af6fee1SDeepak Saxena help 2792b3b3516SAndrew Victor This enables support for systems based on the Atmel AT91RM9200, 2802b3b3516SAndrew Victor AT91SAM9 and AT91CAP9 processors. 2814af6fee1SDeepak Saxena 282ccf50e23SRussell Kingconfig ARCH_BCMRING 283ccf50e23SRussell King bool "Broadcom BCMRING" 284ccf50e23SRussell King depends on MMU 285ccf50e23SRussell King select CPU_V6 286ccf50e23SRussell King select ARM_AMBA 287ccf50e23SRussell King select COMMON_CLKDEV 288ccf50e23SRussell King select GENERIC_CLOCKEVENTS 289ccf50e23SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 290ccf50e23SRussell King help 291ccf50e23SRussell King Support for Broadcom's BCMRing platform. 292ccf50e23SRussell King 2931da177e4SLinus Torvaldsconfig ARCH_CLPS711X 2944af6fee1SDeepak Saxena bool "Cirrus Logic CLPS711x/EP721x-based" 295c750815eSRussell King select CPU_ARM720T 2965cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 297f999b8bdSMartin Michlmayr help 298f999b8bdSMartin Michlmayr Support for Cirrus Logic 711x/721x based boards. 2991da177e4SLinus Torvalds 300d94f944eSAnton Vorontsovconfig ARCH_CNS3XXX 301d94f944eSAnton Vorontsov bool "Cavium Networks CNS3XXX family" 302d94f944eSAnton Vorontsov select CPU_V6 303d94f944eSAnton Vorontsov select GENERIC_CLOCKEVENTS 304d94f944eSAnton Vorontsov select ARM_GIC 3055f32f7a0SAnton Vorontsov select PCI_DOMAINS if PCI 306d94f944eSAnton Vorontsov help 307d94f944eSAnton Vorontsov Support for Cavium Networks CNS3XXX platform. 308d94f944eSAnton Vorontsov 309788c9700SRussell Kingconfig ARCH_GEMINI 310788c9700SRussell King bool "Cortina Systems Gemini" 311788c9700SRussell King select CPU_FA526 312788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 3135cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 314788c9700SRussell King help 315788c9700SRussell King Support for the Cortina Systems Gemini family SoCs 316788c9700SRussell King 3171da177e4SLinus Torvaldsconfig ARCH_EBSA110 3181da177e4SLinus Torvalds bool "EBSA-110" 319c750815eSRussell King select CPU_SA110 320f7e68bbfSRussell King select ISA 321c5eb2a2bSRussell King select NO_IOPORT 3225cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 3231da177e4SLinus Torvalds help 3241da177e4SLinus Torvalds This is an evaluation board for the StrongARM processor available 325f6c8965aSMartin Michlmayr from Digital. It has limited hardware on-board, including an 3261da177e4SLinus Torvalds Ethernet interface, two PCMCIA sockets, two serial ports and a 3271da177e4SLinus Torvalds parallel port. 3281da177e4SLinus Torvalds 329e7736d47SLennert Buytenhekconfig ARCH_EP93XX 330e7736d47SLennert Buytenhek bool "EP93xx-based" 331c750815eSRussell King select CPU_ARM920T 332e7736d47SLennert Buytenhek select ARM_AMBA 333e7736d47SLennert Buytenhek select ARM_VIC 334ae696fd5SRussell King select COMMON_CLKDEV 3357444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 336eb33575cSMel Gorman select ARCH_HAS_HOLES_MEMORYMODEL 3375cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 338e7736d47SLennert Buytenhek help 339e7736d47SLennert Buytenhek This enables support for the Cirrus EP93xx series of CPUs. 340e7736d47SLennert Buytenhek 3411da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE 3421da177e4SLinus Torvalds bool "FootBridge" 343c750815eSRussell King select CPU_SA110 3441da177e4SLinus Torvalds select FOOTBRIDGE 3455cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 346f999b8bdSMartin Michlmayr help 347f999b8bdSMartin Michlmayr Support for systems based on the DC21285 companion chip 348f999b8bdSMartin Michlmayr ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. 3491da177e4SLinus Torvalds 350788c9700SRussell Kingconfig ARCH_MXC 351788c9700SRussell King bool "Freescale MXC/iMX-based" 352788c9700SRussell King select GENERIC_CLOCKEVENTS 353788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 35403e09cd8SUwe Kleine-König select COMMON_CLKDEV 355788c9700SRussell King help 356788c9700SRussell King Support for Freescale MXC/iMX-based family of processors 357788c9700SRussell King 3587bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX 3597bd0f2f5Sdmitry pervushin bool "Freescale STMP3xxx" 3607bd0f2f5Sdmitry pervushin select CPU_ARM926T 3617bd0f2f5Sdmitry pervushin select COMMON_CLKDEV 3627bd0f2f5Sdmitry pervushin select ARCH_REQUIRE_GPIOLIB 3637bd0f2f5Sdmitry pervushin select GENERIC_CLOCKEVENTS 3647bd0f2f5Sdmitry pervushin select USB_ARCH_HAS_EHCI 3657bd0f2f5Sdmitry pervushin help 3667bd0f2f5Sdmitry pervushin Support for systems based on the Freescale 3xxx CPUs. 3677bd0f2f5Sdmitry pervushin 3684af6fee1SDeepak Saxenaconfig ARCH_NETX 3694af6fee1SDeepak Saxena bool "Hilscher NetX based" 370c750815eSRussell King select CPU_ARM926T 3714af6fee1SDeepak Saxena select ARM_VIC 3722fcfe6b8SUwe Kleine-König select GENERIC_CLOCKEVENTS 373f999b8bdSMartin Michlmayr help 3744af6fee1SDeepak Saxena This enables support for systems based on the Hilscher NetX Soc 3754af6fee1SDeepak Saxena 3764af6fee1SDeepak Saxenaconfig ARCH_H720X 3774af6fee1SDeepak Saxena bool "Hynix HMS720x-based" 378c750815eSRussell King select CPU_ARM720T 3794af6fee1SDeepak Saxena select ISA_DMA_API 3805cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 3814af6fee1SDeepak Saxena help 3824af6fee1SDeepak Saxena This enables support for systems based on the Hynix HMS720x 3834af6fee1SDeepak Saxena 3843b938be6SRussell Kingconfig ARCH_IOP13XX 3853b938be6SRussell King bool "IOP13xx-based" 3863b938be6SRussell King depends on MMU 387c750815eSRussell King select CPU_XSC3 3883b938be6SRussell King select PLAT_IOP 3893b938be6SRussell King select PCI 3903b938be6SRussell King select ARCH_SUPPORTS_MSI 3918d5796d2SLennert Buytenhek select VMSPLIT_1G 3923b938be6SRussell King help 3933b938be6SRussell King Support for Intel's IOP13XX (XScale) family of processors. 3943b938be6SRussell King 3953f7e5815SLennert Buytenhekconfig ARCH_IOP32X 3963f7e5815SLennert Buytenhek bool "IOP32x-based" 397a4f7e763SRussell King depends on MMU 398c750815eSRussell King select CPU_XSCALE 3997ae1f7ecSLennert Buytenhek select PLAT_IOP 400f7e68bbfSRussell King select PCI 401bb2b180cSRussell King select ARCH_REQUIRE_GPIOLIB 402f999b8bdSMartin Michlmayr help 4033f7e5815SLennert Buytenhek Support for Intel's 80219 and IOP32X (XScale) family of 4043f7e5815SLennert Buytenhek processors. 4053f7e5815SLennert Buytenhek 4063f7e5815SLennert Buytenhekconfig ARCH_IOP33X 4073f7e5815SLennert Buytenhek bool "IOP33x-based" 4083f7e5815SLennert Buytenhek depends on MMU 409c750815eSRussell King select CPU_XSCALE 4107ae1f7ecSLennert Buytenhek select PLAT_IOP 4113f7e5815SLennert Buytenhek select PCI 412bb2b180cSRussell King select ARCH_REQUIRE_GPIOLIB 4133f7e5815SLennert Buytenhek help 4143f7e5815SLennert Buytenhek Support for Intel's IOP33X (XScale) family of processors. 4151da177e4SLinus Torvalds 4163b938be6SRussell Kingconfig ARCH_IXP23XX 4173b938be6SRussell King bool "IXP23XX-based" 418588ef769SDan Williams depends on MMU 419c750815eSRussell King select CPU_XSC3 420285f5fa7SDan Williams select PCI 4215cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 422285f5fa7SDan Williams help 4233b938be6SRussell King Support for Intel's IXP23xx (XScale) family of processors. 4241da177e4SLinus Torvalds 4251da177e4SLinus Torvaldsconfig ARCH_IXP2000 4261da177e4SLinus Torvalds bool "IXP2400/2800-based" 427a4f7e763SRussell King depends on MMU 428c750815eSRussell King select CPU_XSCALE 429f7e68bbfSRussell King select PCI 4305cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 431f999b8bdSMartin Michlmayr help 432f999b8bdSMartin Michlmayr Support for Intel's IXP2400/2800 (XScale) family of processors. 4331da177e4SLinus Torvalds 4343b938be6SRussell Kingconfig ARCH_IXP4XX 4353b938be6SRussell King bool "IXP4xx-based" 436a4f7e763SRussell King depends on MMU 437c750815eSRussell King select CPU_XSCALE 4388858e9afSMilan Svoboda select GENERIC_GPIO 4393b938be6SRussell King select GENERIC_CLOCKEVENTS 4405b0d495cSRussell King select HAVE_SCHED_CLOCK 441485bdde7SRussell King select DMABOUNCE if PCI 442c4713074SLennert Buytenhek help 4433b938be6SRussell King Support for Intel's IXP4XX (XScale) family of processors. 444c4713074SLennert Buytenhek 445edabd38eSSaeed Bisharaconfig ARCH_DOVE 446edabd38eSSaeed Bishara bool "Marvell Dove" 447edabd38eSSaeed Bishara select PCI 448edabd38eSSaeed Bishara select ARCH_REQUIRE_GPIOLIB 449edabd38eSSaeed Bishara select GENERIC_CLOCKEVENTS 450edabd38eSSaeed Bishara select PLAT_ORION 451edabd38eSSaeed Bishara help 452edabd38eSSaeed Bishara Support for the Marvell Dove SoC 88AP510 453edabd38eSSaeed Bishara 454651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD 455651c74c7SSaeed Bishara bool "Marvell Kirkwood" 456c750815eSRussell King select CPU_FEROCEON 457651c74c7SSaeed Bishara select PCI 458a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 459651c74c7SSaeed Bishara select GENERIC_CLOCKEVENTS 460651c74c7SSaeed Bishara select PLAT_ORION 461651c74c7SSaeed Bishara help 462651c74c7SSaeed Bishara Support for the following Marvell Kirkwood series SoCs: 463651c74c7SSaeed Bishara 88F6180, 88F6192 and 88F6281. 464651c74c7SSaeed Bishara 465788c9700SRussell Kingconfig ARCH_LOKI 466788c9700SRussell King bool "Marvell Loki (88RC8480)" 467788c9700SRussell King select CPU_FEROCEON 468788c9700SRussell King select GENERIC_CLOCKEVENTS 469788c9700SRussell King select PLAT_ORION 470788c9700SRussell King help 471788c9700SRussell King Support for the Marvell Loki (88RC8480) SoC. 472788c9700SRussell King 47340805949SKevin Wellsconfig ARCH_LPC32XX 47440805949SKevin Wells bool "NXP LPC32XX" 47540805949SKevin Wells select CPU_ARM926T 47640805949SKevin Wells select ARCH_REQUIRE_GPIOLIB 47740805949SKevin Wells select HAVE_IDE 47840805949SKevin Wells select ARM_AMBA 47940805949SKevin Wells select USB_ARCH_HAS_OHCI 48040805949SKevin Wells select COMMON_CLKDEV 48140805949SKevin Wells select GENERIC_TIME 48240805949SKevin Wells select GENERIC_CLOCKEVENTS 48340805949SKevin Wells help 48440805949SKevin Wells Support for the NXP LPC32XX family of processors 48540805949SKevin Wells 486788c9700SRussell Kingconfig ARCH_MV78XX0 487788c9700SRussell King bool "Marvell MV78xx0" 488788c9700SRussell King select CPU_FEROCEON 489788c9700SRussell King select PCI 490a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 491788c9700SRussell King select GENERIC_CLOCKEVENTS 492788c9700SRussell King select PLAT_ORION 493788c9700SRussell King help 494788c9700SRussell King Support for the following Marvell MV78xx0 series SoCs: 495788c9700SRussell King MV781x0, MV782x0. 496788c9700SRussell King 497788c9700SRussell Kingconfig ARCH_ORION5X 498788c9700SRussell King bool "Marvell Orion" 499788c9700SRussell King depends on MMU 500788c9700SRussell King select CPU_FEROCEON 501788c9700SRussell King select PCI 502a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 503788c9700SRussell King select GENERIC_CLOCKEVENTS 504788c9700SRussell King select PLAT_ORION 505788c9700SRussell King help 506788c9700SRussell King Support for the following Marvell Orion 5x series SoCs: 507788c9700SRussell King Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), 508788c9700SRussell King Orion-2 (5281), Orion-1-90 (6183). 509788c9700SRussell King 510788c9700SRussell Kingconfig ARCH_MMP 5112f7e8faeSHaojian Zhuang bool "Marvell PXA168/910/MMP2" 512788c9700SRussell King depends on MMU 513788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 514788c9700SRussell King select COMMON_CLKDEV 515788c9700SRussell King select GENERIC_CLOCKEVENTS 516*28bb7bc6SRussell King select HAVE_SCHED_CLOCK 517788c9700SRussell King select TICK_ONESHOT 518788c9700SRussell King select PLAT_PXA 5190bd86961SHaojian Zhuang select SPARSE_IRQ 520788c9700SRussell King help 5212f7e8faeSHaojian Zhuang Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. 522788c9700SRussell King 523c53c9cf6SAndrew Victorconfig ARCH_KS8695 524c53c9cf6SAndrew Victor bool "Micrel/Kendin KS8695" 525c750815eSRussell King select CPU_ARM922T 52672880ad8SDaniel Silverstone select ARCH_REQUIRE_GPIOLIB 5275cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 528c53c9cf6SAndrew Victor help 529c53c9cf6SAndrew Victor Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based 530c53c9cf6SAndrew Victor System-on-Chip devices. 531c53c9cf6SAndrew Victor 5329918cda5SUwe Kleine-Königconfig ARCH_NS9XXX 5339918cda5SUwe Kleine-König bool "NetSilicon NS9xxx" 534c750815eSRussell King select CPU_ARM926T 535689f2a01SUwe Kleine-König select GENERIC_GPIO 536c0bb87f7SUwe Kleine-König select GENERIC_CLOCKEVENTS 5379483a578SDavid Brownell select HAVE_CLK 5389918cda5SUwe Kleine-König help 5399918cda5SUwe Kleine-König Say Y here if you intend to run this kernel on a NetSilicon NS9xxx 5409918cda5SUwe Kleine-König System. 5419918cda5SUwe Kleine-König 5429918cda5SUwe Kleine-König <http://www.digi.com/products/microprocessors/index.jsp> 5439918cda5SUwe Kleine-König 544788c9700SRussell Kingconfig ARCH_W90X900 545788c9700SRussell King bool "Nuvoton W90X900 CPU" 546788c9700SRussell King select CPU_ARM926T 547c52d3d68Swanzongshun select ARCH_REQUIRE_GPIOLIB 5480e4a34bbSwanzongshun select COMMON_CLKDEV 54958b5369eSwanzongshun select GENERIC_CLOCKEVENTS 550777f9bebSLennert Buytenhek help 551a8bc4eadSwanzongshun Support for Nuvoton (Winbond logic dept.) ARM9 processor, 552a8bc4eadSwanzongshun At present, the w90x900 has been renamed nuc900, regarding 553a8bc4eadSwanzongshun the ARM series product line, you can login the following 554a8bc4eadSwanzongshun link address to know more. 555a8bc4eadSwanzongshun 556a8bc4eadSwanzongshun <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ 557a8bc4eadSwanzongshun ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> 558585cf175STzachi Perelstein 559a62e9030Swanzongshunconfig ARCH_NUC93X 560a62e9030Swanzongshun bool "Nuvoton NUC93X CPU" 561a62e9030Swanzongshun select CPU_ARM926T 562a62e9030Swanzongshun select COMMON_CLKDEV 563a62e9030Swanzongshun help 564a62e9030Swanzongshun Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a 565a62e9030Swanzongshun low-power and high performance MPEG-4/JPEG multimedia controller chip. 566a62e9030Swanzongshun 567c5f80065SErik Gillingconfig ARCH_TEGRA 568c5f80065SErik Gilling bool "NVIDIA Tegra" 569c5f80065SErik Gilling select GENERIC_TIME 570c5f80065SErik Gilling select GENERIC_CLOCKEVENTS 571c5f80065SErik Gilling select GENERIC_GPIO 572c5f80065SErik Gilling select HAVE_CLK 573d8611961SColin Cross select COMMON_CLKDEV 574c5f80065SErik Gilling select ARCH_HAS_BARRIERS if CACHE_L2X0 5757056d423SColin Cross select ARCH_HAS_CPUFREQ 576c5f80065SErik Gilling help 577c5f80065SErik Gilling This enables support for NVIDIA Tegra based systems (Tegra APX, 578c5f80065SErik Gilling Tegra 6xx and Tegra 2 series). 579c5f80065SErik Gilling 5804af6fee1SDeepak Saxenaconfig ARCH_PNX4008 5814af6fee1SDeepak Saxena bool "Philips Nexperia PNX4008 Mobile" 582c750815eSRussell King select CPU_ARM926T 5836985a5adSRussell King select COMMON_CLKDEV 5845cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 5854af6fee1SDeepak Saxena help 5864af6fee1SDeepak Saxena This enables support for Philips PNX4008 mobile platform. 5874af6fee1SDeepak Saxena 5881da177e4SLinus Torvaldsconfig ARCH_PXA 5892c8086a5Seric miao bool "PXA2xx/PXA3xx-based" 590a4f7e763SRussell King depends on MMU 591034d2f5aSAl Viro select ARCH_MTD_XIP 59289c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 5938c3abc7dSRussell King select COMMON_CLKDEV 5947444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 595981d0f39SEric Miao select GENERIC_CLOCKEVENTS 596a88264c2SRussell King select TICK_ONESHOT 597bd5ce433SEric Miao select PLAT_PXA 5986ac6b817SHaojian Zhuang select SPARSE_IRQ 599f999b8bdSMartin Michlmayr help 6002c8086a5Seric miao Support for Intel/Marvell's PXA2xx/PXA3xx processor line. 6011da177e4SLinus Torvalds 602788c9700SRussell Kingconfig ARCH_MSM 603788c9700SRussell King bool "Qualcomm MSM" 6044b536b8dSSteve Muckle select HAVE_CLK 60549cbe786SEric Miao select GENERIC_CLOCKEVENTS 606923a081cSPavel Machek select ARCH_REQUIRE_GPIOLIB 60749cbe786SEric Miao help 6084b53eb4fSDaniel Walker Support for Qualcomm MSM/QSD based systems. This runs on the 6094b53eb4fSDaniel Walker apps processor of the MSM/QSD and depends on a shared memory 6104b53eb4fSDaniel Walker interface to the modem processor which runs the baseband 6114b53eb4fSDaniel Walker stack and controls some vital subsystems 6124b53eb4fSDaniel Walker (clock and power control, etc). 61349cbe786SEric Miao 614c793c1b0SMagnus Dammconfig ARCH_SHMOBILE 615c793c1b0SMagnus Damm bool "Renesas SH-Mobile" 616c793c1b0SMagnus Damm help 617c793c1b0SMagnus Damm Support for Renesas's SH-Mobile ARM platforms 618c793c1b0SMagnus Damm 6191da177e4SLinus Torvaldsconfig ARCH_RPC 6201da177e4SLinus Torvalds bool "RiscPC" 6211da177e4SLinus Torvalds select ARCH_ACORN 6221da177e4SLinus Torvalds select FIQ 6231da177e4SLinus Torvalds select TIMER_ACORN 624a08b6b79Sviro@ZenIV.linux.org.uk select ARCH_MAY_HAVE_PC_FDC 625341eb781SBen Dooks select HAVE_PATA_PLATFORM 626065909b9SRussell King select ISA_DMA_API 6275ea81769SAl Viro select NO_IOPORT 62807f841b7SRussell King select ARCH_SPARSEMEM_ENABLE 6295cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 6301da177e4SLinus Torvalds help 6311da177e4SLinus Torvalds On the Acorn Risc-PC, Linux can support the internal IDE disk and 6321da177e4SLinus Torvalds CD-ROM interface, serial and parallel port, and the floppy drive. 6331da177e4SLinus Torvalds 6341da177e4SLinus Torvaldsconfig ARCH_SA1100 6351da177e4SLinus Torvalds bool "SA1100-based" 636c750815eSRussell King select CPU_SA1100 637f7e68bbfSRussell King select ISA 63805944d74SRussell King select ARCH_SPARSEMEM_ENABLE 639034d2f5aSAl Viro select ARCH_MTD_XIP 64089c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 6411937f5b9SRussell King select CPU_FREQ 6423e238be2SRussell King select GENERIC_CLOCKEVENTS 6439483a578SDavid Brownell select HAVE_CLK 6443e238be2SRussell King select TICK_ONESHOT 6457444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 646f999b8bdSMartin Michlmayr help 647f999b8bdSMartin Michlmayr Support for StrongARM 11x0 based boards. 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvaldsconfig ARCH_S3C2410 65063b1f51bSBen Dooks bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450" 6510a938b97SDavid Brownell select GENERIC_GPIO 6529d56c02aSBen Dooks select ARCH_HAS_CPUFREQ 6539483a578SDavid Brownell select HAVE_CLK 6545cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 65520676c15SKukjin Kim select HAVE_S3C2410_I2C if I2C 6561da177e4SLinus Torvalds help 6571da177e4SLinus Torvalds Samsung S3C2410X CPU based systems, such as the Simtec Electronics 6581da177e4SLinus Torvalds BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or 659f6c8965aSMartin Michlmayr the Samsung SMDK2410 development board (and derivatives). 6601da177e4SLinus Torvalds 66163b1f51bSBen Dooks Note, the S3C2416 and the S3C2450 are so close that they even share 66263b1f51bSBen Dooks the same SoC ID code. This means that there is no seperate machine 66363b1f51bSBen Dooks directory (no arch/arm/mach-s3c2450) as the S3C2416 was first. 66463b1f51bSBen Dooks 665a08ab637SBen Dooksconfig ARCH_S3C64XX 666a08ab637SBen Dooks bool "Samsung S3C64XX" 66789f1fa08SBen Dooks select PLAT_SAMSUNG 66889f0ce72SBen Dooks select CPU_V6 66989f0ce72SBen Dooks select ARM_VIC 670a08ab637SBen Dooks select HAVE_CLK 67189f0ce72SBen Dooks select NO_IOPORT 6725cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 67389c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 67489f0ce72SBen Dooks select ARCH_REQUIRE_GPIOLIB 67589f0ce72SBen Dooks select SAMSUNG_CLKSRC 67689f0ce72SBen Dooks select SAMSUNG_IRQ_VIC_TIMER 67789f0ce72SBen Dooks select SAMSUNG_IRQ_UART 67889f0ce72SBen Dooks select S3C_GPIO_TRACK 67989f0ce72SBen Dooks select S3C_GPIO_PULL_UPDOWN 68089f0ce72SBen Dooks select S3C_GPIO_CFG_S3C24XX 68189f0ce72SBen Dooks select S3C_GPIO_CFG_S3C64XX 68289f0ce72SBen Dooks select S3C_DEV_NAND 68389f0ce72SBen Dooks select USB_ARCH_HAS_OHCI 68489f0ce72SBen Dooks select SAMSUNG_GPIOLIB_4BIT 68520676c15SKukjin Kim select HAVE_S3C2410_I2C if I2C 686c39d8d55SKyungmin Park select HAVE_S3C2410_WATCHDOG if WATCHDOG 687a08ab637SBen Dooks help 688a08ab637SBen Dooks Samsung S3C64XX series based systems 689a08ab637SBen Dooks 69049b7a491SKukjin Kimconfig ARCH_S5P64X0 69149b7a491SKukjin Kim bool "Samsung S5P6440 S5P6450" 692c4ffccddSKukjin Kim select CPU_V6 693c4ffccddSKukjin Kim select GENERIC_GPIO 694c4ffccddSKukjin Kim select HAVE_CLK 695c39d8d55SKyungmin Park select HAVE_S3C2410_WATCHDOG if WATCHDOG 696925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 69720676c15SKukjin Kim select HAVE_S3C2410_I2C if I2C 698754961a8SKukjin Kim select HAVE_S3C_RTC if RTC_CLASS 699c4ffccddSKukjin Kim help 70049b7a491SKukjin Kim Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440, 70149b7a491SKukjin Kim SMDK6450. 702c4ffccddSKukjin Kim 703550db7f1SKukjin Kimconfig ARCH_S5P6442 704550db7f1SKukjin Kim bool "Samsung S5P6442" 705550db7f1SKukjin Kim select CPU_V6 706550db7f1SKukjin Kim select GENERIC_GPIO 707550db7f1SKukjin Kim select HAVE_CLK 708925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 709c39d8d55SKyungmin Park select HAVE_S3C2410_WATCHDOG if WATCHDOG 710550db7f1SKukjin Kim help 711550db7f1SKukjin Kim Samsung S5P6442 CPU based systems 712550db7f1SKukjin Kim 713acc84707SMarek Szyprowskiconfig ARCH_S5PC100 714acc84707SMarek Szyprowski bool "Samsung S5PC100" 7155a7652f2SByungho Min select GENERIC_GPIO 7165a7652f2SByungho Min select HAVE_CLK 7175a7652f2SByungho Min select CPU_V7 718d6d502faSKukjin Kim select ARM_L1_CACHE_SHIFT_6 719925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 72020676c15SKukjin Kim select HAVE_S3C2410_I2C if I2C 721754961a8SKukjin Kim select HAVE_S3C_RTC if RTC_CLASS 722c39d8d55SKyungmin Park select HAVE_S3C2410_WATCHDOG if WATCHDOG 7235a7652f2SByungho Min help 724acc84707SMarek Szyprowski Samsung S5PC100 series based systems 7255a7652f2SByungho Min 726170f4e42SKukjin Kimconfig ARCH_S5PV210 727170f4e42SKukjin Kim bool "Samsung S5PV210/S5PC110" 728170f4e42SKukjin Kim select CPU_V7 729eecb6a84SKyungmin Park select ARCH_SPARSEMEM_ENABLE 730170f4e42SKukjin Kim select GENERIC_GPIO 731170f4e42SKukjin Kim select HAVE_CLK 732170f4e42SKukjin Kim select ARM_L1_CACHE_SHIFT_6 733d8144aeaSJaecheol Lee select ARCH_HAS_CPUFREQ 734925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 73520676c15SKukjin Kim select HAVE_S3C2410_I2C if I2C 736754961a8SKukjin Kim select HAVE_S3C_RTC if RTC_CLASS 737c39d8d55SKyungmin Park select HAVE_S3C2410_WATCHDOG if WATCHDOG 738170f4e42SKukjin Kim help 739170f4e42SKukjin Kim Samsung S5PV210/S5PC110 series based systems 740170f4e42SKukjin Kim 741cc0e72b8SChanghwan Younconfig ARCH_S5PV310 742cc0e72b8SChanghwan Youn bool "Samsung S5PV310/S5PC210" 743cc0e72b8SChanghwan Youn select CPU_V7 744f567fa6fSKyungmin Park select ARCH_SPARSEMEM_ENABLE 745cc0e72b8SChanghwan Youn select GENERIC_GPIO 746cc0e72b8SChanghwan Youn select HAVE_CLK 747cc0e72b8SChanghwan Youn select GENERIC_CLOCKEVENTS 748754961a8SKukjin Kim select HAVE_S3C_RTC if RTC_CLASS 74920676c15SKukjin Kim select HAVE_S3C2410_I2C if I2C 750c39d8d55SKyungmin Park select HAVE_S3C2410_WATCHDOG if WATCHDOG 751cc0e72b8SChanghwan Youn help 752cc0e72b8SChanghwan Youn Samsung S5PV310 series based systems 753cc0e72b8SChanghwan Youn 7541da177e4SLinus Torvaldsconfig ARCH_SHARK 7551da177e4SLinus Torvalds bool "Shark" 756c750815eSRussell King select CPU_SA110 757f7e68bbfSRussell King select ISA 758f7e68bbfSRussell King select ISA_DMA 7593bca103aSNicolas Pitre select ZONE_DMA 760f7e68bbfSRussell King select PCI 7615cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 762f999b8bdSMartin Michlmayr help 763f999b8bdSMartin Michlmayr Support for the StrongARM based Digital DNARD machine, also known 764f999b8bdSMartin Michlmayr as "Shark" (<http://www.shark-linux.de/shark.html>). 7651da177e4SLinus Torvalds 76683ef3338SHans J. Kochconfig ARCH_TCC_926 76783ef3338SHans J. Koch bool "Telechips TCC ARM926-based systems" 76883ef3338SHans J. Koch select CPU_ARM926T 76983ef3338SHans J. Koch select HAVE_CLK 77083ef3338SHans J. Koch select COMMON_CLKDEV 77183ef3338SHans J. Koch select GENERIC_CLOCKEVENTS 77283ef3338SHans J. Koch help 77383ef3338SHans J. Koch Support for Telechips TCC ARM926-based systems. 77483ef3338SHans J. Koch 7751da177e4SLinus Torvaldsconfig ARCH_LH7A40X 7761da177e4SLinus Torvalds bool "Sharp LH7A40X" 777c750815eSRussell King select CPU_ARM922T 7784ba3f7c5SRussell King select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM 7795cfc8ee0SJohn Stultz select ARCH_USES_GETTIMEOFFSET 7801da177e4SLinus Torvalds help 7811da177e4SLinus Torvalds Say Y here for systems based on one of the Sharp LH7A40X 7821da177e4SLinus Torvalds System on a Chip processors. These CPUs include an ARM922T 7831da177e4SLinus Torvalds core with a wide array of integrated devices for 7841da177e4SLinus Torvalds hand-held and low-power applications. 7851da177e4SLinus Torvalds 786d98aac75SLinus Walleijconfig ARCH_U300 787d98aac75SLinus Walleij bool "ST-Ericsson U300 Series" 788d98aac75SLinus Walleij depends on MMU 789d98aac75SLinus Walleij select CPU_ARM926T 790bc581770SLinus Walleij select HAVE_TCM 791d98aac75SLinus Walleij select ARM_AMBA 792d98aac75SLinus Walleij select ARM_VIC 793d98aac75SLinus Walleij select GENERIC_CLOCKEVENTS 794d98aac75SLinus Walleij select COMMON_CLKDEV 795d98aac75SLinus Walleij select GENERIC_GPIO 796d98aac75SLinus Walleij help 797d98aac75SLinus Walleij Support for ST-Ericsson U300 series mobile platforms. 798d98aac75SLinus Walleij 799ccf50e23SRussell Kingconfig ARCH_U8500 800ccf50e23SRussell King bool "ST-Ericsson U8500 Series" 801ccf50e23SRussell King select CPU_V7 802ccf50e23SRussell King select ARM_AMBA 803ccf50e23SRussell King select GENERIC_CLOCKEVENTS 804ccf50e23SRussell King select COMMON_CLKDEV 80594bdc0e2SRabin Vincent select ARCH_REQUIRE_GPIOLIB 806ccf50e23SRussell King help 807ccf50e23SRussell King Support for ST-Ericsson's Ux500 architecture 808ccf50e23SRussell King 809ccf50e23SRussell Kingconfig ARCH_NOMADIK 810ccf50e23SRussell King bool "STMicroelectronics Nomadik" 811ccf50e23SRussell King select ARM_AMBA 812ccf50e23SRussell King select ARM_VIC 813ccf50e23SRussell King select CPU_ARM926T 814ccf50e23SRussell King select COMMON_CLKDEV 815ccf50e23SRussell King select GENERIC_CLOCKEVENTS 816ccf50e23SRussell King select ARCH_REQUIRE_GPIOLIB 817ccf50e23SRussell King help 818ccf50e23SRussell King Support for the Nomadik platform by ST-Ericsson 819ccf50e23SRussell King 8207c6337e2SKevin Hilmanconfig ARCH_DAVINCI 8217c6337e2SKevin Hilman bool "TI DaVinci" 8227c6337e2SKevin Hilman select GENERIC_CLOCKEVENTS 823dce1115bSDavid Brownell select ARCH_REQUIRE_GPIOLIB 8243bca103aSNicolas Pitre select ZONE_DMA 8259232fcc9SKevin Hilman select HAVE_IDE 826c5b736d0SKevin Hilman select COMMON_CLKDEV 82720e9969bSDavid Brownell select GENERIC_ALLOCATOR 828ae88e05aSSekhar Nori select ARCH_HAS_HOLES_MEMORYMODEL 8297c6337e2SKevin Hilman help 8307c6337e2SKevin Hilman Support for TI's DaVinci platform. 8317c6337e2SKevin Hilman 8323b938be6SRussell Kingconfig ARCH_OMAP 8333b938be6SRussell King bool "TI OMAP" 8349483a578SDavid Brownell select HAVE_CLK 8357444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 83689c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 83706cad098SKevin Hilman select GENERIC_CLOCKEVENTS 8389af915daSSriram select ARCH_HAS_HOLES_MEMORYMODEL 8393b938be6SRussell King help 8406e457bb0SLennert Buytenhek Support for TI's OMAP platform (OMAP1/2/3/4). 8413b938be6SRussell King 842cee37e50Sviresh kumarconfig PLAT_SPEAR 843cee37e50Sviresh kumar bool "ST SPEAr" 844cee37e50Sviresh kumar select ARM_AMBA 845cee37e50Sviresh kumar select ARCH_REQUIRE_GPIOLIB 846cee37e50Sviresh kumar select COMMON_CLKDEV 847cee37e50Sviresh kumar select GENERIC_CLOCKEVENTS 848cee37e50Sviresh kumar select HAVE_CLK 849cee37e50Sviresh kumar help 850cee37e50Sviresh kumar Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx). 851cee37e50Sviresh kumar 8521da177e4SLinus Torvaldsendchoice 8531da177e4SLinus Torvalds 854ccf50e23SRussell King# 855ccf50e23SRussell King# This is sorted alphabetically by mach-* pathname. However, plat-* 856ccf50e23SRussell King# Kconfigs may be included either alphabetically (according to the 857ccf50e23SRussell King# plat- suffix) or along side the corresponding mach-* source. 858ccf50e23SRussell King# 85995b8f20fSRussell Kingsource "arch/arm/mach-aaec2000/Kconfig" 86095b8f20fSRussell King 86195b8f20fSRussell Kingsource "arch/arm/mach-at91/Kconfig" 86295b8f20fSRussell King 86395b8f20fSRussell Kingsource "arch/arm/mach-bcmring/Kconfig" 86495b8f20fSRussell King 8651da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig" 8661da177e4SLinus Torvalds 867d94f944eSAnton Vorontsovsource "arch/arm/mach-cns3xxx/Kconfig" 868d94f944eSAnton Vorontsov 86995b8f20fSRussell Kingsource "arch/arm/mach-davinci/Kconfig" 87095b8f20fSRussell King 87195b8f20fSRussell Kingsource "arch/arm/mach-dove/Kconfig" 87295b8f20fSRussell King 873e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig" 874e7736d47SLennert Buytenhek 8751da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig" 8761da177e4SLinus Torvalds 87759d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig" 87859d3a193SPaulius Zaleckas 87995b8f20fSRussell Kingsource "arch/arm/mach-h720x/Kconfig" 88095b8f20fSRussell King 8811da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig" 8821da177e4SLinus Torvalds 8833f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig" 8843f7e5815SLennert Buytenhek 8853f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig" 8861da177e4SLinus Torvalds 887285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig" 888285f5fa7SDan Williams 8891da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig" 8901da177e4SLinus Torvalds 8911da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig" 8921da177e4SLinus Torvalds 893c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig" 894c4713074SLennert Buytenhek 89595b8f20fSRussell Kingsource "arch/arm/mach-kirkwood/Kconfig" 89695b8f20fSRussell King 89795b8f20fSRussell Kingsource "arch/arm/mach-ks8695/Kconfig" 89895b8f20fSRussell King 89995b8f20fSRussell Kingsource "arch/arm/mach-lh7a40x/Kconfig" 90095b8f20fSRussell King 901777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig" 902777f9bebSLennert Buytenhek 90340805949SKevin Wellssource "arch/arm/mach-lpc32xx/Kconfig" 90440805949SKevin Wells 90595b8f20fSRussell Kingsource "arch/arm/mach-msm/Kconfig" 90695b8f20fSRussell King 907794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig" 908794d15b2SStanislav Samsonov 90995b8f20fSRussell Kingsource "arch/arm/plat-mxc/Kconfig" 9101da177e4SLinus Torvalds 91195b8f20fSRussell Kingsource "arch/arm/mach-netx/Kconfig" 91249cbe786SEric Miao 91395b8f20fSRussell Kingsource "arch/arm/mach-nomadik/Kconfig" 91495b8f20fSRussell Kingsource "arch/arm/plat-nomadik/Kconfig" 91595b8f20fSRussell King 91695b8f20fSRussell Kingsource "arch/arm/mach-ns9xxx/Kconfig" 9171da177e4SLinus Torvalds 918d91a8910SRussell Kingsource "arch/arm/mach-nuc93x/Kconfig" 919d91a8910SRussell King 920d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig" 921d48af15eSTony Lindgren 922d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig" 9231da177e4SLinus Torvalds 9241dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig" 9251dbae815STony Lindgren 9269dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig" 927585cf175STzachi Perelstein 92895b8f20fSRussell Kingsource "arch/arm/mach-pxa/Kconfig" 92995b8f20fSRussell Kingsource "arch/arm/plat-pxa/Kconfig" 9301da177e4SLinus Torvalds 93195b8f20fSRussell Kingsource "arch/arm/mach-mmp/Kconfig" 93295b8f20fSRussell King 93395b8f20fSRussell Kingsource "arch/arm/mach-realview/Kconfig" 93495b8f20fSRussell King 93595b8f20fSRussell Kingsource "arch/arm/mach-sa1100/Kconfig" 936edabd38eSSaeed Bishara 937cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig" 938a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig" 939c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig" 940a21765a7SBen Dooks 941cee37e50Sviresh kumarsource "arch/arm/plat-spear/Kconfig" 942a21765a7SBen Dooks 94383ef3338SHans J. Kochsource "arch/arm/plat-tcc/Kconfig" 94483ef3338SHans J. Koch 945a21765a7SBen Dooksif ARCH_S3C2410 946a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig" 9471da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig" 948a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig" 949f1290a49SYauhen Kharuzhysource "arch/arm/mach-s3c2416/Kconfig" 950a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig" 951e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig" 952a21765a7SBen Dooksendif 9531da177e4SLinus Torvalds 954a08ab637SBen Dooksif ARCH_S3C64XX 955431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig" 956a08ab637SBen Dooksendif 957a08ab637SBen Dooks 95849b7a491SKukjin Kimsource "arch/arm/mach-s5p64x0/Kconfig" 959c4ffccddSKukjin Kim 960550db7f1SKukjin Kimsource "arch/arm/mach-s5p6442/Kconfig" 9617bd0f2f5Sdmitry pervushin 9625a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig" 9635a7652f2SByungho Min 964170f4e42SKukjin Kimsource "arch/arm/mach-s5pv210/Kconfig" 965170f4e42SKukjin Kim 966cc0e72b8SChanghwan Younsource "arch/arm/mach-s5pv310/Kconfig" 967cc0e72b8SChanghwan Youn 968882d01f9SRussell Kingsource "arch/arm/mach-shmobile/Kconfig" 9691da177e4SLinus Torvalds 970882d01f9SRussell Kingsource "arch/arm/plat-stmp3xxx/Kconfig" 9719e73c84cSBrian Swetland 972c5f80065SErik Gillingsource "arch/arm/mach-tegra/Kconfig" 973c5f80065SErik Gilling 97495b8f20fSRussell Kingsource "arch/arm/mach-u300/Kconfig" 97552c543f9SQuinn Jensen 97695b8f20fSRussell Kingsource "arch/arm/mach-ux500/Kconfig" 9771da177e4SLinus Torvalds 9781da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig" 9791da177e4SLinus Torvalds 980ceade897SRussell Kingsource "arch/arm/mach-vexpress/Kconfig" 981ceade897SRussell King 9827ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig" 9837ec80ddfSwanzongshun 9841da177e4SLinus Torvalds# Definitions to make life easier 9851da177e4SLinus Torvaldsconfig ARCH_ACORN 9861da177e4SLinus Torvalds bool 9871da177e4SLinus Torvalds 9887ae1f7ecSLennert Buytenhekconfig PLAT_IOP 9897ae1f7ecSLennert Buytenhek bool 990469d3044SMikael Pettersson select GENERIC_CLOCKEVENTS 9917ae1f7ecSLennert Buytenhek 99269b02f6aSLennert Buytenhekconfig PLAT_ORION 99369b02f6aSLennert Buytenhek bool 99469b02f6aSLennert Buytenhek 995bd5ce433SEric Miaoconfig PLAT_PXA 996bd5ce433SEric Miao bool 997bd5ce433SEric Miao 998f4b8b319SRussell Kingconfig PLAT_VERSATILE 999f4b8b319SRussell King bool 1000f4b8b319SRussell King 1001e3887714SRussell Kingconfig ARM_TIMER_SP804 1002e3887714SRussell King bool 1003e3887714SRussell King 10041da177e4SLinus Torvaldssource arch/arm/mm/Kconfig 10051da177e4SLinus Torvalds 1006afe4b25eSLennert Buytenhekconfig IWMMXT 1007afe4b25eSLennert Buytenhek bool "Enable iWMMXt support" 100840305a58SEric Miao depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK 100940305a58SEric Miao default y if PXA27x || PXA3xx || ARCH_MMP 1010afe4b25eSLennert Buytenhek help 1011afe4b25eSLennert Buytenhek Enable support for iWMMXt context switching at run time if 1012afe4b25eSLennert Buytenhek running on a CPU that supports it. 1013afe4b25eSLennert Buytenhek 10141da177e4SLinus Torvalds# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER 10151da177e4SLinus Torvaldsconfig XSCALE_PMU 10161da177e4SLinus Torvalds bool 10171da177e4SLinus Torvalds depends on CPU_XSCALE && !XSCALE_PMU_TIMER 10181da177e4SLinus Torvalds default y 10191da177e4SLinus Torvalds 10200f4f0672SJamie Ilesconfig CPU_HAS_PMU 10218954bb0dSWill Deacon depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \ 10228954bb0dSWill Deacon (!ARCH_OMAP3 || OMAP3_EMU) 10230f4f0672SJamie Iles default y 10240f4f0672SJamie Iles bool 10250f4f0672SJamie Iles 10263b93e7b0SHyok S. Choiif !MMU 10273b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu" 10283b93e7b0SHyok S. Choiendif 10293b93e7b0SHyok S. Choi 10309cba3cccSCatalin Marinasconfig ARM_ERRATA_411920 10319cba3cccSCatalin Marinas bool "ARM errata: Invalidation of the Instruction Cache operation can fail" 103281d11955STony Lindgren depends on CPU_V6 10339cba3cccSCatalin Marinas help 10349cba3cccSCatalin Marinas Invalidation of the Instruction Cache operation can 10359cba3cccSCatalin Marinas fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. 10369cba3cccSCatalin Marinas It does not affect the MPCore. This option enables the ARM Ltd. 10379cba3cccSCatalin Marinas recommended workaround. 10389cba3cccSCatalin Marinas 10397ce236fcSCatalin Marinasconfig ARM_ERRATA_430973 10407ce236fcSCatalin Marinas bool "ARM errata: Stale prediction on replaced interworking branch" 10417ce236fcSCatalin Marinas depends on CPU_V7 10427ce236fcSCatalin Marinas help 10437ce236fcSCatalin Marinas This option enables the workaround for the 430973 Cortex-A8 10447ce236fcSCatalin Marinas (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb 10457ce236fcSCatalin Marinas interworking branch is replaced with another code sequence at the 10467ce236fcSCatalin Marinas same virtual address, whether due to self-modifying code or virtual 10477ce236fcSCatalin Marinas to physical address re-mapping, Cortex-A8 does not recover from the 10487ce236fcSCatalin Marinas stale interworking branch prediction. This results in Cortex-A8 10497ce236fcSCatalin Marinas executing the new code sequence in the incorrect ARM or Thumb state. 10507ce236fcSCatalin Marinas The workaround enables the BTB/BTAC operations by setting ACTLR.IBE 10517ce236fcSCatalin Marinas and also flushes the branch target cache at every context switch. 10527ce236fcSCatalin Marinas Note that setting specific bits in the ACTLR register may not be 10537ce236fcSCatalin Marinas available in non-secure mode. 10547ce236fcSCatalin Marinas 1055855c551fSCatalin Marinasconfig ARM_ERRATA_458693 1056855c551fSCatalin Marinas bool "ARM errata: Processor deadlock when a false hazard is created" 1057855c551fSCatalin Marinas depends on CPU_V7 1058855c551fSCatalin Marinas help 1059855c551fSCatalin Marinas This option enables the workaround for the 458693 Cortex-A8 (r2p0) 1060855c551fSCatalin Marinas erratum. For very specific sequences of memory operations, it is 1061855c551fSCatalin Marinas possible for a hazard condition intended for a cache line to instead 1062855c551fSCatalin Marinas be incorrectly associated with a different cache line. This false 1063855c551fSCatalin Marinas hazard might then cause a processor deadlock. The workaround enables 1064855c551fSCatalin Marinas the L1 caching of the NEON accesses and disables the PLD instruction 1065855c551fSCatalin Marinas in the ACTLR register. Note that setting specific bits in the ACTLR 1066855c551fSCatalin Marinas register may not be available in non-secure mode. 1067855c551fSCatalin Marinas 10680516e464SCatalin Marinasconfig ARM_ERRATA_460075 10690516e464SCatalin Marinas bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" 10700516e464SCatalin Marinas depends on CPU_V7 10710516e464SCatalin Marinas help 10720516e464SCatalin Marinas This option enables the workaround for the 460075 Cortex-A8 (r2p0) 10730516e464SCatalin Marinas erratum. Any asynchronous access to the L2 cache may encounter a 10740516e464SCatalin Marinas situation in which recent store transactions to the L2 cache are lost 10750516e464SCatalin Marinas and overwritten with stale memory contents from external memory. The 10760516e464SCatalin Marinas workaround disables the write-allocate mode for the L2 cache via the 10770516e464SCatalin Marinas ACTLR register. Note that setting specific bits in the ACTLR register 10780516e464SCatalin Marinas may not be available in non-secure mode. 10790516e464SCatalin Marinas 10809f05027cSWill Deaconconfig ARM_ERRATA_742230 10819f05027cSWill Deacon bool "ARM errata: DMB operation may be faulty" 10829f05027cSWill Deacon depends on CPU_V7 && SMP 10839f05027cSWill Deacon help 10849f05027cSWill Deacon This option enables the workaround for the 742230 Cortex-A9 10859f05027cSWill Deacon (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction 10869f05027cSWill Deacon between two write operations may not ensure the correct visibility 10879f05027cSWill Deacon ordering of the two writes. This workaround sets a specific bit in 10889f05027cSWill Deacon the diagnostic register of the Cortex-A9 which causes the DMB 10899f05027cSWill Deacon instruction to behave as a DSB, ensuring the correct behaviour of 10909f05027cSWill Deacon the two writes. 10919f05027cSWill Deacon 1092a672e99bSWill Deaconconfig ARM_ERRATA_742231 1093a672e99bSWill Deacon bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption" 1094a672e99bSWill Deacon depends on CPU_V7 && SMP 1095a672e99bSWill Deacon help 1096a672e99bSWill Deacon This option enables the workaround for the 742231 Cortex-A9 1097a672e99bSWill Deacon (r2p0..r2p2) erratum. Under certain conditions, specific to the 1098a672e99bSWill Deacon Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode, 1099a672e99bSWill Deacon accessing some data located in the same cache line, may get corrupted 1100a672e99bSWill Deacon data due to bad handling of the address hazard when the line gets 1101a672e99bSWill Deacon replaced from one of the CPUs at the same time as another CPU is 1102a672e99bSWill Deacon accessing it. This workaround sets specific bits in the diagnostic 1103a672e99bSWill Deacon register of the Cortex-A9 which reduces the linefill issuing 1104a672e99bSWill Deacon capabilities of the processor. 1105a672e99bSWill Deacon 11069e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369 11079e65582aSSantosh Shilimkar bool "Clean & Invalidate maintenance operations do not invalidate clean lines" 11089e65582aSSantosh Shilimkar depends on CACHE_L2X0 && ARCH_OMAP4 11099e65582aSSantosh Shilimkar help 11109e65582aSSantosh Shilimkar The PL310 L2 cache controller implements three types of Clean & 11119e65582aSSantosh Shilimkar Invalidate maintenance operations: by Physical Address 11129e65582aSSantosh Shilimkar (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). 11139e65582aSSantosh Shilimkar They are architecturally defined to behave as the execution of a 11149e65582aSSantosh Shilimkar clean operation followed immediately by an invalidate operation, 11159e65582aSSantosh Shilimkar both performing to the same memory location. This functionality 11169e65582aSSantosh Shilimkar is not correctly implemented in PL310 as clean lines are not 11179e65582aSSantosh Shilimkar invalidated as a result of these operations. Note that this errata 11189e65582aSSantosh Shilimkar uses Texas Instrument's secure monitor api. 1119cdf357f1SWill Deacon 1120cdf357f1SWill Deaconconfig ARM_ERRATA_720789 1121cdf357f1SWill Deacon bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID" 1122cdf357f1SWill Deacon depends on CPU_V7 && SMP 1123cdf357f1SWill Deacon help 1124cdf357f1SWill Deacon This option enables the workaround for the 720789 Cortex-A9 (prior to 1125cdf357f1SWill Deacon r2p0) erratum. A faulty ASID can be sent to the other CPUs for the 1126cdf357f1SWill Deacon broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS. 1127cdf357f1SWill Deacon As a consequence of this erratum, some TLB entries which should be 1128cdf357f1SWill Deacon invalidated are not, resulting in an incoherency in the system page 1129cdf357f1SWill Deacon tables. The workaround changes the TLB flushing routines to invalidate 1130cdf357f1SWill Deacon entries regardless of the ASID. 1131475d92fcSWill Deacon 1132475d92fcSWill Deaconconfig ARM_ERRATA_743622 1133475d92fcSWill Deacon bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption" 1134475d92fcSWill Deacon depends on CPU_V7 1135475d92fcSWill Deacon help 1136475d92fcSWill Deacon This option enables the workaround for the 743622 Cortex-A9 1137475d92fcSWill Deacon (r2p0..r2p2) erratum. Under very rare conditions, a faulty 1138475d92fcSWill Deacon optimisation in the Cortex-A9 Store Buffer may lead to data 1139475d92fcSWill Deacon corruption. This workaround sets a specific bit in the diagnostic 1140475d92fcSWill Deacon register of the Cortex-A9 which disables the Store Buffer 1141475d92fcSWill Deacon optimisation, preventing the defect from occurring. This has no 1142475d92fcSWill Deacon visible impact on the overall performance or power consumption of the 1143475d92fcSWill Deacon processor. 1144475d92fcSWill Deacon 11451da177e4SLinus Torvaldsendmenu 11461da177e4SLinus Torvalds 11471da177e4SLinus Torvaldssource "arch/arm/common/Kconfig" 11481da177e4SLinus Torvalds 11491da177e4SLinus Torvaldsmenu "Bus support" 11501da177e4SLinus Torvalds 11511da177e4SLinus Torvaldsconfig ARM_AMBA 11521da177e4SLinus Torvalds bool 11531da177e4SLinus Torvalds 11541da177e4SLinus Torvaldsconfig ISA 11551da177e4SLinus Torvalds bool 11561da177e4SLinus Torvalds help 11571da177e4SLinus Torvalds Find out whether you have ISA slots on your motherboard. ISA is the 11581da177e4SLinus Torvalds name of a bus system, i.e. the way the CPU talks to the other stuff 11591da177e4SLinus Torvalds inside your box. Other bus systems are PCI, EISA, MicroChannel 11601da177e4SLinus Torvalds (MCA) or VESA. ISA is an older system, now being displaced by PCI; 11611da177e4SLinus Torvalds newer boards don't support it. If you have ISA, say Y, otherwise N. 11621da177e4SLinus Torvalds 1163065909b9SRussell King# Select ISA DMA controller support 11641da177e4SLinus Torvaldsconfig ISA_DMA 11651da177e4SLinus Torvalds bool 1166065909b9SRussell King select ISA_DMA_API 11671da177e4SLinus Torvalds 1168065909b9SRussell King# Select ISA DMA interface 11695cae841bSAl Viroconfig ISA_DMA_API 11705cae841bSAl Viro bool 11715cae841bSAl Viro 11721da177e4SLinus Torvaldsconfig PCI 11735f32f7a0SAnton Vorontsov bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX 11741da177e4SLinus Torvalds help 11751da177e4SLinus Torvalds Find out whether you have a PCI motherboard. PCI is the name of a 11761da177e4SLinus Torvalds bus system, i.e. the way the CPU talks to the other stuff inside 11771da177e4SLinus Torvalds your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or 11781da177e4SLinus Torvalds VESA. If you have PCI, say Y, otherwise N. 11791da177e4SLinus Torvalds 118052882173SAnton Vorontsovconfig PCI_DOMAINS 118152882173SAnton Vorontsov bool 118252882173SAnton Vorontsov depends on PCI 118352882173SAnton Vorontsov 118436e23590SMatthew Wilcoxconfig PCI_SYSCALL 118536e23590SMatthew Wilcox def_bool PCI 118636e23590SMatthew Wilcox 11871da177e4SLinus Torvalds# Select the host bridge type 11881da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505 11891da177e4SLinus Torvalds bool 11901da177e4SLinus Torvalds depends on PCI && ARCH_SHARK 11911da177e4SLinus Torvalds default y 11921da177e4SLinus Torvalds 1193a0113a99SMike Rapoportconfig PCI_HOST_ITE8152 1194a0113a99SMike Rapoport bool 1195a0113a99SMike Rapoport depends on PCI && MACH_ARMCORE 1196a0113a99SMike Rapoport default y 1197a0113a99SMike Rapoport select DMABOUNCE 1198a0113a99SMike Rapoport 11991da177e4SLinus Torvaldssource "drivers/pci/Kconfig" 12001da177e4SLinus Torvalds 12011da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig" 12021da177e4SLinus Torvalds 12031da177e4SLinus Torvaldsendmenu 12041da177e4SLinus Torvalds 12051da177e4SLinus Torvaldsmenu "Kernel Features" 12061da177e4SLinus Torvalds 12070567a0c0SKevin Hilmansource "kernel/time/Kconfig" 12080567a0c0SKevin Hilman 12091da177e4SLinus Torvaldsconfig SMP 12101da177e4SLinus Torvalds bool "Symmetric Multi-Processing (EXPERIMENTAL)" 1211971acb9bSRussell King depends on EXPERIMENTAL 1212bc28248eSRussell King depends on GENERIC_CLOCKEVENTS 1213971acb9bSRussell King depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \ 1214971acb9bSRussell King MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \ 121589c3dedfSDaniel Walker ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \ 121689c3dedfSDaniel Walker ARCH_MSM_SCORPIONMP 1217f6dd9fa5SJens Axboe select USE_GENERIC_SMP_HELPERS 121889c3dedfSDaniel Walker select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP 12191da177e4SLinus Torvalds help 12201da177e4SLinus Torvalds This enables support for systems with more than one CPU. If you have 12211da177e4SLinus Torvalds a system with only one CPU, like most personal computers, say N. If 12221da177e4SLinus Torvalds you have a system with more than one CPU, say Y. 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds If you say N here, the kernel will run on single and multiprocessor 12251da177e4SLinus Torvalds machines, but will use only one CPU of a multiprocessor machine. If 12261da177e4SLinus Torvalds you say Y here, the kernel will run on many, but not all, single 12271da177e4SLinus Torvalds processor machines. On a single processor machine, the kernel will 12281da177e4SLinus Torvalds run faster if you say N here. 12291da177e4SLinus Torvalds 123003502faaSAdrian Bunk See also <file:Documentation/i386/IO-APIC.txt>, 12311da177e4SLinus Torvalds <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at 123250a23e6eSJustin P. Mattock <http://tldp.org/HOWTO/SMP-HOWTO.html>. 12331da177e4SLinus Torvalds 12341da177e4SLinus Torvalds If you don't know what to do here, say N. 12351da177e4SLinus Torvalds 1236f00ec48fSRussell Kingconfig SMP_ON_UP 1237f00ec48fSRussell King bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)" 1238f00ec48fSRussell King depends on EXPERIMENTAL 1239f00ec48fSRussell King depends on SMP && !XIP && !THUMB2_KERNEL 1240f00ec48fSRussell King default y 1241f00ec48fSRussell King help 1242f00ec48fSRussell King SMP kernels contain instructions which fail on non-SMP processors. 1243f00ec48fSRussell King Enabling this option allows the kernel to modify itself to make 1244f00ec48fSRussell King these instructions safe. Disabling it allows about 1K of space 1245f00ec48fSRussell King savings. 1246f00ec48fSRussell King 1247f00ec48fSRussell King If you don't know what to do here, say Y. 1248f00ec48fSRussell King 1249a8cbcd92SRussell Kingconfig HAVE_ARM_SCU 1250a8cbcd92SRussell King bool 1251a8cbcd92SRussell King depends on SMP 1252a8cbcd92SRussell King help 1253a8cbcd92SRussell King This option enables support for the ARM system coherency unit 1254a8cbcd92SRussell King 1255f32f4ce2SRussell Kingconfig HAVE_ARM_TWD 1256f32f4ce2SRussell King bool 1257f32f4ce2SRussell King depends on SMP 1258f32f4ce2SRussell King help 1259f32f4ce2SRussell King This options enables support for the ARM timer and watchdog unit 1260f32f4ce2SRussell King 12618d5796d2SLennert Buytenhekchoice 12628d5796d2SLennert Buytenhek prompt "Memory split" 12638d5796d2SLennert Buytenhek default VMSPLIT_3G 12648d5796d2SLennert Buytenhek help 12658d5796d2SLennert Buytenhek Select the desired split between kernel and user memory. 12668d5796d2SLennert Buytenhek 12678d5796d2SLennert Buytenhek If you are not absolutely sure what you are doing, leave this 12688d5796d2SLennert Buytenhek option alone! 12698d5796d2SLennert Buytenhek 12708d5796d2SLennert Buytenhek config VMSPLIT_3G 12718d5796d2SLennert Buytenhek bool "3G/1G user/kernel split" 12728d5796d2SLennert Buytenhek config VMSPLIT_2G 12738d5796d2SLennert Buytenhek bool "2G/2G user/kernel split" 12748d5796d2SLennert Buytenhek config VMSPLIT_1G 12758d5796d2SLennert Buytenhek bool "1G/3G user/kernel split" 12768d5796d2SLennert Buytenhekendchoice 12778d5796d2SLennert Buytenhek 12788d5796d2SLennert Buytenhekconfig PAGE_OFFSET 12798d5796d2SLennert Buytenhek hex 12808d5796d2SLennert Buytenhek default 0x40000000 if VMSPLIT_1G 12818d5796d2SLennert Buytenhek default 0x80000000 if VMSPLIT_2G 12828d5796d2SLennert Buytenhek default 0xC0000000 12838d5796d2SLennert Buytenhek 12841da177e4SLinus Torvaldsconfig NR_CPUS 12851da177e4SLinus Torvalds int "Maximum number of CPUs (2-32)" 12861da177e4SLinus Torvalds range 2 32 12871da177e4SLinus Torvalds depends on SMP 12881da177e4SLinus Torvalds default "4" 12891da177e4SLinus Torvalds 1290a054a811SRussell Kingconfig HOTPLUG_CPU 1291a054a811SRussell King bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 1292a054a811SRussell King depends on SMP && HOTPLUG && EXPERIMENTAL 1293176bfc44SDaniel Walker depends on !ARCH_MSM 1294a054a811SRussell King help 1295a054a811SRussell King Say Y here to experiment with turning CPUs off and on. CPUs 1296a054a811SRussell King can be controlled through /sys/devices/system/cpu. 1297a054a811SRussell King 129837ee16aeSRussell Kingconfig LOCAL_TIMERS 129937ee16aeSRussell King bool "Use local timer interrupts" 1300971acb9bSRussell King depends on SMP 130137ee16aeSRussell King default y 130289c3dedfSDaniel Walker select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP 130337ee16aeSRussell King help 130437ee16aeSRussell King Enable support for local timers on SMP platforms, rather then the 130537ee16aeSRussell King legacy IPI broadcast method. Local timers allows the system 130637ee16aeSRussell King accounting to be spread across the timer interval, preventing a 130737ee16aeSRussell King "thundering herd" at every timer tick. 130837ee16aeSRussell King 1309d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt 13101da177e4SLinus Torvalds 1311f8065813SRussell Kingconfig HZ 1312f8065813SRussell King int 131349b7a491SKukjin Kim default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \ 13142192482eSRussell King ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310 1315bfe65704SRussell King default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER 13165248c657SDavid Brownell default AT91_TIMER_HZ if ARCH_AT91 13175da3e714SMagnus Damm default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE 1318f8065813SRussell King default 100 1319f8065813SRussell King 132016c79651SCatalin Marinasconfig THUMB2_KERNEL 132116c79651SCatalin Marinas bool "Compile the kernel in Thumb-2 mode" 132216c79651SCatalin Marinas depends on CPU_V7 && EXPERIMENTAL 132316c79651SCatalin Marinas select AEABI 132416c79651SCatalin Marinas select ARM_ASM_UNIFIED 132516c79651SCatalin Marinas help 132616c79651SCatalin Marinas By enabling this option, the kernel will be compiled in 132716c79651SCatalin Marinas Thumb-2 mode. A compiler/assembler that understand the unified 132816c79651SCatalin Marinas ARM-Thumb syntax is needed. 132916c79651SCatalin Marinas 133016c79651SCatalin Marinas If unsure, say N. 133116c79651SCatalin Marinas 13320becb088SCatalin Marinasconfig ARM_ASM_UNIFIED 13330becb088SCatalin Marinas bool 13340becb088SCatalin Marinas 1335704bdda0SNicolas Pitreconfig AEABI 1336704bdda0SNicolas Pitre bool "Use the ARM EABI to compile the kernel" 1337704bdda0SNicolas Pitre help 1338704bdda0SNicolas Pitre This option allows for the kernel to be compiled using the latest 1339704bdda0SNicolas Pitre ARM ABI (aka EABI). This is only useful if you are using a user 1340704bdda0SNicolas Pitre space environment that is also compiled with EABI. 1341704bdda0SNicolas Pitre 1342704bdda0SNicolas Pitre Since there are major incompatibilities between the legacy ABI and 1343704bdda0SNicolas Pitre EABI, especially with regard to structure member alignment, this 1344704bdda0SNicolas Pitre option also changes the kernel syscall calling convention to 1345704bdda0SNicolas Pitre disambiguate both ABIs and allow for backward compatibility support 1346704bdda0SNicolas Pitre (selected with CONFIG_OABI_COMPAT). 1347704bdda0SNicolas Pitre 1348704bdda0SNicolas Pitre To use this you need GCC version 4.0.0 or later. 1349704bdda0SNicolas Pitre 13506c90c872SNicolas Pitreconfig OABI_COMPAT 1351a73a3ff1SRussell King bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" 135261c484d4SNicolas Pitre depends on AEABI && EXPERIMENTAL 13536c90c872SNicolas Pitre default y 13546c90c872SNicolas Pitre help 13556c90c872SNicolas Pitre This option preserves the old syscall interface along with the 13566c90c872SNicolas Pitre new (ARM EABI) one. It also provides a compatibility layer to 13576c90c872SNicolas Pitre intercept syscalls that have structure arguments which layout 13586c90c872SNicolas Pitre in memory differs between the legacy ABI and the new ARM EABI 13596c90c872SNicolas Pitre (only for non "thumb" binaries). This option adds a tiny 13606c90c872SNicolas Pitre overhead to all syscalls and produces a slightly larger kernel. 13616c90c872SNicolas Pitre If you know you'll be using only pure EABI user space then you 13626c90c872SNicolas Pitre can say N here. If this option is not selected and you attempt 13636c90c872SNicolas Pitre to execute a legacy ABI binary then the result will be 13646c90c872SNicolas Pitre UNPREDICTABLE (in fact it can be predicted that it won't work 13656c90c872SNicolas Pitre at all). If in doubt say Y. 13666c90c872SNicolas Pitre 1367eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL 1368e80d6a24SMel Gorman bool 1369e80d6a24SMel Gorman 137005944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE 137105944d74SRussell King bool 137205944d74SRussell King 137307a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT 137407a2f737SRussell King def_bool ARCH_SPARSEMEM_ENABLE 137507a2f737SRussell King 137605944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL 1377be370302SRussell King def_bool ARCH_SPARSEMEM_ENABLE 1378c80d79d7SYasunori Goto 1379053a96caSNicolas Pitreconfig HIGHMEM 1380053a96caSNicolas Pitre bool "High Memory Support (EXPERIMENTAL)" 1381053a96caSNicolas Pitre depends on MMU && EXPERIMENTAL 1382053a96caSNicolas Pitre help 1383053a96caSNicolas Pitre The address space of ARM processors is only 4 Gigabytes large 1384053a96caSNicolas Pitre and it has to accommodate user address space, kernel address 1385053a96caSNicolas Pitre space as well as some memory mapped IO. That means that, if you 1386053a96caSNicolas Pitre have a large amount of physical memory and/or IO, not all of the 1387053a96caSNicolas Pitre memory can be "permanently mapped" by the kernel. The physical 1388053a96caSNicolas Pitre memory that is not permanently mapped is called "high memory". 1389053a96caSNicolas Pitre 1390053a96caSNicolas Pitre Depending on the selected kernel/user memory split, minimum 1391053a96caSNicolas Pitre vmalloc space and actual amount of RAM, you may not need this 1392053a96caSNicolas Pitre option which should result in a slightly faster kernel. 1393053a96caSNicolas Pitre 1394053a96caSNicolas Pitre If unsure, say n. 1395053a96caSNicolas Pitre 139665cec8e3SRussell Kingconfig HIGHPTE 139765cec8e3SRussell King bool "Allocate 2nd-level pagetables from highmem" 139865cec8e3SRussell King depends on HIGHMEM 139965cec8e3SRussell King depends on !OUTER_CACHE 140065cec8e3SRussell King 14011b8873a0SJamie Ilesconfig HW_PERF_EVENTS 14021b8873a0SJamie Iles bool "Enable hardware performance counter support for perf events" 1403fe166148SWill Deacon depends on PERF_EVENTS && CPU_HAS_PMU 14041b8873a0SJamie Iles default y 14051b8873a0SJamie Iles help 14061b8873a0SJamie Iles Enable hardware performance counter support for perf events. If 14071b8873a0SJamie Iles disabled, perf events will use software events only. 14081b8873a0SJamie Iles 1409354e6f72Seric miaoconfig SPARSE_IRQ 1410c1ba6ba3Seric miao def_bool n 1411354e6f72Seric miao help 1412354e6f72Seric miao This enables support for sparse irqs. This is useful in general 1413354e6f72Seric miao as most CPUs have a fairly sparse array of IRQ vectors, which 1414354e6f72Seric miao the irq_desc then maps directly on to. Systems with a high 1415354e6f72Seric miao number of off-chip IRQs will want to treat this as 1416354e6f72Seric miao experimental until they have been independently verified. 1417354e6f72Seric miao 14183f22ab27SDave Hansensource "mm/Kconfig" 14193f22ab27SDave Hansen 1420c1b2d970SMagnus Dammconfig FORCE_MAX_ZONEORDER 1421c1b2d970SMagnus Damm int "Maximum zone order" if ARCH_SHMOBILE 1422c1b2d970SMagnus Damm range 11 64 if ARCH_SHMOBILE 1423c1b2d970SMagnus Damm default "9" if SA1111 1424c1b2d970SMagnus Damm default "11" 1425c1b2d970SMagnus Damm help 1426c1b2d970SMagnus Damm The kernel memory allocator divides physically contiguous memory 1427c1b2d970SMagnus Damm blocks into "zones", where each zone is a power of two number of 1428c1b2d970SMagnus Damm pages. This option selects the largest power of two that the kernel 1429c1b2d970SMagnus Damm keeps in the memory allocator. If you need to allocate very large 1430c1b2d970SMagnus Damm blocks of physically contiguous memory, then you may need to 1431c1b2d970SMagnus Damm increase this value. 1432c1b2d970SMagnus Damm 1433c1b2d970SMagnus Damm This config option is actually maximum order plus one. For example, 1434c1b2d970SMagnus Damm a value of 11 means that the largest free memory block is 2^10 pages. 1435c1b2d970SMagnus Damm 14361da177e4SLinus Torvaldsconfig LEDS 14371da177e4SLinus Torvalds bool "Timer and CPU usage LEDs" 1438e055d5bfSAdrian Bunk depends on ARCH_CDB89712 || ARCH_EBSA110 || \ 14398c8fdbc9SSascha Hauer ARCH_EBSA285 || ARCH_INTEGRATOR || \ 14401da177e4SLinus Torvalds ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ 14411da177e4SLinus Torvalds ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ 144273a59c1cSSAN People ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ 144325329671SJürgen Schindele ARCH_AT91 || ARCH_DAVINCI || \ 1444ff3042fbSColin Tuckley ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW 14451da177e4SLinus Torvalds help 14461da177e4SLinus Torvalds If you say Y here, the LEDs on your machine will be used 14471da177e4SLinus Torvalds to provide useful information about your current system status. 14481da177e4SLinus Torvalds 14491da177e4SLinus Torvalds If you are compiling a kernel for a NetWinder or EBSA-285, you will 14501da177e4SLinus Torvalds be able to select which LEDs are active using the options below. If 14511da177e4SLinus Torvalds you are compiling a kernel for the EBSA-110 or the LART however, the 14521da177e4SLinus Torvalds red LED will simply flash regularly to indicate that the system is 14531da177e4SLinus Torvalds still functional. It is safe to say Y here if you have a CATS 14541da177e4SLinus Torvalds system, but the driver will do nothing. 14551da177e4SLinus Torvalds 14561da177e4SLinus Torvaldsconfig LEDS_TIMER 14571da177e4SLinus Torvalds bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ 1458eebdf7d7SDavid Brownell OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ 1459eebdf7d7SDavid Brownell || MACH_OMAP_PERSEUS2 14601da177e4SLinus Torvalds depends on LEDS 14610567a0c0SKevin Hilman depends on !GENERIC_CLOCKEVENTS 14621da177e4SLinus Torvalds default y if ARCH_EBSA110 14631da177e4SLinus Torvalds help 14641da177e4SLinus Torvalds If you say Y here, one of the system LEDs (the green one on the 14651da177e4SLinus Torvalds NetWinder, the amber one on the EBSA285, or the red one on the LART) 14661da177e4SLinus Torvalds will flash regularly to indicate that the system is still 14671da177e4SLinus Torvalds operational. This is mainly useful to kernel hackers who are 14681da177e4SLinus Torvalds debugging unstable kernels. 14691da177e4SLinus Torvalds 14701da177e4SLinus Torvalds The LART uses the same LED for both Timer LED and CPU usage LED 14711da177e4SLinus Torvalds functions. You may choose to use both, but the Timer LED function 14721da177e4SLinus Torvalds will overrule the CPU usage LED. 14731da177e4SLinus Torvalds 14741da177e4SLinus Torvaldsconfig LEDS_CPU 14751da177e4SLinus Torvalds bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ 1476eebdf7d7SDavid Brownell !ARCH_OMAP) \ 1477eebdf7d7SDavid Brownell || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ 1478eebdf7d7SDavid Brownell || MACH_OMAP_PERSEUS2 14791da177e4SLinus Torvalds depends on LEDS 14801da177e4SLinus Torvalds help 14811da177e4SLinus Torvalds If you say Y here, the red LED will be used to give a good real 14821da177e4SLinus Torvalds time indication of CPU usage, by lighting whenever the idle task 14831da177e4SLinus Torvalds is not currently executing. 14841da177e4SLinus Torvalds 14851da177e4SLinus Torvalds The LART uses the same LED for both Timer LED and CPU usage LED 14861da177e4SLinus Torvalds functions. You may choose to use both, but the Timer LED function 14871da177e4SLinus Torvalds will overrule the CPU usage LED. 14881da177e4SLinus Torvalds 14891da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP 14901da177e4SLinus Torvalds bool 1491f12d0d7cSHyok S. Choi depends on CPU_CP15_MMU 14921da177e4SLinus Torvalds default y if !ARCH_EBSA110 1493e119bfffSRussell King select HAVE_PROC_CPU if PROC_FS 14941da177e4SLinus Torvalds help 14951da177e4SLinus Torvalds ARM processors cannot fetch/store information which is not 14961da177e4SLinus Torvalds naturally aligned on the bus, i.e., a 4 byte fetch must start at an 14971da177e4SLinus Torvalds address divisible by 4. On 32-bit ARM processors, these non-aligned 14981da177e4SLinus Torvalds fetch/store instructions will be emulated in software if you say 14991da177e4SLinus Torvalds here, which has a severe performance impact. This is necessary for 15001da177e4SLinus Torvalds correct operation of some network protocols. With an IP-only 15011da177e4SLinus Torvalds configuration it is safe to say N, otherwise say Y. 15021da177e4SLinus Torvalds 150339ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY 150439ec58f3SLennert Buytenhek bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" 150539ec58f3SLennert Buytenhek depends on MMU && EXPERIMENTAL 150639ec58f3SLennert Buytenhek default y if CPU_FEROCEON 150739ec58f3SLennert Buytenhek help 150839ec58f3SLennert Buytenhek Implement faster copy_to_user and clear_user methods for CPU 150939ec58f3SLennert Buytenhek cores where a 8-word STM instruction give significantly higher 151039ec58f3SLennert Buytenhek memory write throughput than a sequence of individual 32bit stores. 151139ec58f3SLennert Buytenhek 151239ec58f3SLennert Buytenhek A possible side effect is a slight increase in scheduling latency 151339ec58f3SLennert Buytenhek between threads sharing the same address space if they invoke 151439ec58f3SLennert Buytenhek such copy operations with large buffers. 151539ec58f3SLennert Buytenhek 151639ec58f3SLennert Buytenhek However, if the CPU data cache is using a write-allocate mode, 151739ec58f3SLennert Buytenhek this option is unlikely to provide any performance gain. 151839ec58f3SLennert Buytenhek 151970c70d97SNicolas Pitreconfig SECCOMP 152070c70d97SNicolas Pitre bool 152170c70d97SNicolas Pitre prompt "Enable seccomp to safely compute untrusted bytecode" 152270c70d97SNicolas Pitre ---help--- 152370c70d97SNicolas Pitre This kernel feature is useful for number crunching applications 152470c70d97SNicolas Pitre that may need to compute untrusted bytecode during their 152570c70d97SNicolas Pitre execution. By using pipes or other transports made available to 152670c70d97SNicolas Pitre the process as file descriptors supporting the read/write 152770c70d97SNicolas Pitre syscalls, it's possible to isolate those applications in 152870c70d97SNicolas Pitre their own address space using seccomp. Once seccomp is 152970c70d97SNicolas Pitre enabled via prctl(PR_SET_SECCOMP), it cannot be disabled 153070c70d97SNicolas Pitre and the task is only allowed to execute a few safe syscalls 153170c70d97SNicolas Pitre defined by each seccomp mode. 153270c70d97SNicolas Pitre 1533c743f380SNicolas Pitreconfig CC_STACKPROTECTOR 1534c743f380SNicolas Pitre bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" 1535c743f380SNicolas Pitre help 1536c743f380SNicolas Pitre This option turns on the -fstack-protector GCC feature. This 1537c743f380SNicolas Pitre feature puts, at the beginning of functions, a canary value on 1538c743f380SNicolas Pitre the stack just before the return address, and validates 1539c743f380SNicolas Pitre the value just before actually returning. Stack based buffer 1540c743f380SNicolas Pitre overflows (that need to overwrite this return address) now also 1541c743f380SNicolas Pitre overwrite the canary, which gets detected and the attack is then 1542c743f380SNicolas Pitre neutralized via a kernel panic. 1543c743f380SNicolas Pitre This feature requires gcc version 4.2 or above. 1544c743f380SNicolas Pitre 154573a65b3fSUwe Kleine-Königconfig DEPRECATED_PARAM_STRUCT 154673a65b3fSUwe Kleine-König bool "Provide old way to pass kernel parameters" 154773a65b3fSUwe Kleine-König help 154873a65b3fSUwe Kleine-König This was deprecated in 2001 and announced to live on for 5 years. 154973a65b3fSUwe Kleine-König Some old boot loaders still use this way. 155073a65b3fSUwe Kleine-König 15511da177e4SLinus Torvaldsendmenu 15521da177e4SLinus Torvalds 15531da177e4SLinus Torvaldsmenu "Boot options" 15541da177e4SLinus Torvalds 15551da177e4SLinus Torvalds# Compressed boot loader in ROM. Yes, we really want to ask about 15561da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files. 15571da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT 15581da177e4SLinus Torvalds hex "Compressed ROM boot loader base address" 15591da177e4SLinus Torvalds default "0" 15601da177e4SLinus Torvalds help 15611da177e4SLinus Torvalds The physical address at which the ROM-able zImage is to be 15621da177e4SLinus Torvalds placed in the target. Platforms which normally make use of 15631da177e4SLinus Torvalds ROM-able zImage formats normally set this to a suitable 15641da177e4SLinus Torvalds value in their defconfig file. 15651da177e4SLinus Torvalds 15661da177e4SLinus Torvalds If ZBOOT_ROM is not enabled, this has no effect. 15671da177e4SLinus Torvalds 15681da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS 15691da177e4SLinus Torvalds hex "Compressed ROM boot loader BSS address" 15701da177e4SLinus Torvalds default "0" 15711da177e4SLinus Torvalds help 1572f8c440b2SDan Fandrich The base address of an area of read/write memory in the target 1573f8c440b2SDan Fandrich for the ROM-able zImage which must be available while the 1574f8c440b2SDan Fandrich decompressor is running. It must be large enough to hold the 1575f8c440b2SDan Fandrich entire decompressed kernel plus an additional 128 KiB. 1576f8c440b2SDan Fandrich Platforms which normally make use of ROM-able zImage formats 1577f8c440b2SDan Fandrich normally set this to a suitable value in their defconfig file. 15781da177e4SLinus Torvalds 15791da177e4SLinus Torvalds If ZBOOT_ROM is not enabled, this has no effect. 15801da177e4SLinus Torvalds 15811da177e4SLinus Torvaldsconfig ZBOOT_ROM 15821da177e4SLinus Torvalds bool "Compressed boot loader in ROM/flash" 15831da177e4SLinus Torvalds depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS 15841da177e4SLinus Torvalds help 15851da177e4SLinus Torvalds Say Y here if you intend to execute your compressed kernel image 15861da177e4SLinus Torvalds (zImage) directly from ROM or flash. If unsure, say N. 15871da177e4SLinus Torvalds 15881da177e4SLinus Torvaldsconfig CMDLINE 15891da177e4SLinus Torvalds string "Default kernel command string" 15901da177e4SLinus Torvalds default "" 15911da177e4SLinus Torvalds help 15921da177e4SLinus Torvalds On some architectures (EBSA110 and CATS), there is currently no way 15931da177e4SLinus Torvalds for the boot loader to pass arguments to the kernel. For these 15941da177e4SLinus Torvalds architectures, you should supply some command-line options at build 15951da177e4SLinus Torvalds time by entering them here. As a minimum, you should specify the 15961da177e4SLinus Torvalds memory size and the root device (e.g., mem=64M root=/dev/nfs). 15971da177e4SLinus Torvalds 159892d2040dSAlexander Hollerconfig CMDLINE_FORCE 159992d2040dSAlexander Holler bool "Always use the default kernel command string" 160092d2040dSAlexander Holler depends on CMDLINE != "" 160192d2040dSAlexander Holler help 160292d2040dSAlexander Holler Always use the default kernel command string, even if the boot 160392d2040dSAlexander Holler loader passes other arguments to the kernel. 160492d2040dSAlexander Holler This is useful if you cannot or don't want to change the 160592d2040dSAlexander Holler command-line options your boot loader passes to the kernel. 160692d2040dSAlexander Holler 160792d2040dSAlexander Holler If unsure, say N. 160892d2040dSAlexander Holler 16091da177e4SLinus Torvaldsconfig XIP_KERNEL 16101da177e4SLinus Torvalds bool "Kernel Execute-In-Place from ROM" 16111da177e4SLinus Torvalds depends on !ZBOOT_ROM 16121da177e4SLinus Torvalds help 16131da177e4SLinus Torvalds Execute-In-Place allows the kernel to run from non-volatile storage 16141da177e4SLinus Torvalds directly addressable by the CPU, such as NOR flash. This saves RAM 16151da177e4SLinus Torvalds space since the text section of the kernel is not loaded from flash 16161da177e4SLinus Torvalds to RAM. Read-write sections, such as the data section and stack, 16171da177e4SLinus Torvalds are still copied to RAM. The XIP kernel is not compressed since 16181da177e4SLinus Torvalds it has to run directly from flash, so it will take more space to 16191da177e4SLinus Torvalds store it. The flash address used to link the kernel object files, 16201da177e4SLinus Torvalds and for storing it, is configuration dependent. Therefore, if you 16211da177e4SLinus Torvalds say Y here, you must know the proper physical address where to 16221da177e4SLinus Torvalds store the kernel image depending on your own flash memory usage. 16231da177e4SLinus Torvalds 16241da177e4SLinus Torvalds Also note that the make target becomes "make xipImage" rather than 16251da177e4SLinus Torvalds "make zImage" or "make Image". The final kernel binary to put in 16261da177e4SLinus Torvalds ROM memory will be arch/arm/boot/xipImage. 16271da177e4SLinus Torvalds 16281da177e4SLinus Torvalds If unsure, say N. 16291da177e4SLinus Torvalds 16301da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR 16311da177e4SLinus Torvalds hex "XIP Kernel Physical Location" 16321da177e4SLinus Torvalds depends on XIP_KERNEL 16331da177e4SLinus Torvalds default "0x00080000" 16341da177e4SLinus Torvalds help 16351da177e4SLinus Torvalds This is the physical address in your flash memory the kernel will 16361da177e4SLinus Torvalds be linked for and stored to. This address is dependent on your 16371da177e4SLinus Torvalds own flash usage. 16381da177e4SLinus Torvalds 1639c587e4a6SRichard Purdieconfig KEXEC 1640c587e4a6SRichard Purdie bool "Kexec system call (EXPERIMENTAL)" 1641c587e4a6SRichard Purdie depends on EXPERIMENTAL 1642c587e4a6SRichard Purdie help 1643c587e4a6SRichard Purdie kexec is a system call that implements the ability to shutdown your 1644c587e4a6SRichard Purdie current kernel, and to start another kernel. It is like a reboot 164501dd2fbfSMatt LaPlante but it is independent of the system firmware. And like a reboot 1646c587e4a6SRichard Purdie you can start any kernel with it, not just Linux. 1647c587e4a6SRichard Purdie 1648c587e4a6SRichard Purdie It is an ongoing process to be certain the hardware in a machine 1649c587e4a6SRichard Purdie is properly shutdown, so do not be surprised if this code does not 1650c587e4a6SRichard Purdie initially work for you. It may help to enable device hotplugging 1651c587e4a6SRichard Purdie support. 1652c587e4a6SRichard Purdie 16534cd9d6f7SRichard Purdieconfig ATAGS_PROC 16544cd9d6f7SRichard Purdie bool "Export atags in procfs" 1655b98d7291SUli Luckas depends on KEXEC 1656b98d7291SUli Luckas default y 16574cd9d6f7SRichard Purdie help 16584cd9d6f7SRichard Purdie Should the atags used to boot the kernel be exported in an "atags" 16594cd9d6f7SRichard Purdie file in procfs. Useful with kexec. 16604cd9d6f7SRichard Purdie 1661e69edc79SEric Miaoconfig AUTO_ZRELADDR 1662e69edc79SEric Miao bool "Auto calculation of the decompressed kernel image address" 1663e69edc79SEric Miao depends on !ZBOOT_ROM && !ARCH_U300 1664e69edc79SEric Miao help 1665e69edc79SEric Miao ZRELADDR is the physical address where the decompressed kernel 1666e69edc79SEric Miao image will be placed. If AUTO_ZRELADDR is selected, the address 1667e69edc79SEric Miao will be determined at run-time by masking the current IP with 1668e69edc79SEric Miao 0xf8000000. This assumes the zImage being placed in the first 128MB 1669e69edc79SEric Miao from start of memory. 1670e69edc79SEric Miao 16711da177e4SLinus Torvaldsendmenu 16721da177e4SLinus Torvalds 1673ac9d7efcSRussell Kingmenu "CPU Power Management" 16741da177e4SLinus Torvalds 167589c52ed4SBen Dooksif ARCH_HAS_CPUFREQ 16761da177e4SLinus Torvalds 16771da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig" 16781da177e4SLinus Torvalds 167964f102b6SYong Shenconfig CPU_FREQ_IMX 168064f102b6SYong Shen tristate "CPUfreq driver for i.MX CPUs" 168164f102b6SYong Shen depends on ARCH_MXC && CPU_FREQ 168264f102b6SYong Shen help 168364f102b6SYong Shen This enables the CPUfreq driver for i.MX CPUs. 168464f102b6SYong Shen 16851da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100 16861da177e4SLinus Torvalds bool 16871da177e4SLinus Torvalds 16881da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110 16891da177e4SLinus Torvalds bool 16901da177e4SLinus Torvalds 16911da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR 16921da177e4SLinus Torvalds tristate "CPUfreq driver for ARM Integrator CPUs" 16931da177e4SLinus Torvalds depends on ARCH_INTEGRATOR && CPU_FREQ 16941da177e4SLinus Torvalds default y 16951da177e4SLinus Torvalds help 16961da177e4SLinus Torvalds This enables the CPUfreq driver for ARM Integrator CPUs. 16971da177e4SLinus Torvalds 16981da177e4SLinus Torvalds For details, take a look at <file:Documentation/cpu-freq>. 16991da177e4SLinus Torvalds 17001da177e4SLinus Torvalds If in doubt, say Y. 17011da177e4SLinus Torvalds 17029e2697ffSRussell Kingconfig CPU_FREQ_PXA 17039e2697ffSRussell King bool 17049e2697ffSRussell King depends on CPU_FREQ && ARCH_PXA && PXA25x 17059e2697ffSRussell King default y 17069e2697ffSRussell King select CPU_FREQ_DEFAULT_GOV_USERSPACE 17079e2697ffSRussell King 1708b3748dddSMark Brownconfig CPU_FREQ_S3C64XX 1709b3748dddSMark Brown bool "CPUfreq support for Samsung S3C64XX CPUs" 1710b3748dddSMark Brown depends on CPU_FREQ && CPU_S3C6410 1711b3748dddSMark Brown 17129d56c02aSBen Dooksconfig CPU_FREQ_S3C 17139d56c02aSBen Dooks bool 17149d56c02aSBen Dooks help 17159d56c02aSBen Dooks Internal configuration node for common cpufreq on Samsung SoC 17169d56c02aSBen Dooks 17179d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX 17189d56c02aSBen Dooks bool "CPUfreq driver for Samsung S3C24XX series CPUs" 17199d56c02aSBen Dooks depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL 17209d56c02aSBen Dooks select CPU_FREQ_S3C 17219d56c02aSBen Dooks help 17229d56c02aSBen Dooks This enables the CPUfreq driver for the Samsung S3C24XX family 17239d56c02aSBen Dooks of CPUs. 17249d56c02aSBen Dooks 17259d56c02aSBen Dooks For details, take a look at <file:Documentation/cpu-freq>. 17269d56c02aSBen Dooks 17279d56c02aSBen Dooks If in doubt, say N. 17289d56c02aSBen Dooks 17299d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL 17309d56c02aSBen Dooks bool "Support CPUfreq changing of PLL frequency" 17319d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX && EXPERIMENTAL 17329d56c02aSBen Dooks help 17339d56c02aSBen Dooks Compile in support for changing the PLL frequency from the 17349d56c02aSBen Dooks S3C24XX series CPUfreq driver. The PLL takes time to settle 17359d56c02aSBen Dooks after a frequency change, so by default it is not enabled. 17369d56c02aSBen Dooks 17379d56c02aSBen Dooks This also means that the PLL tables for the selected CPU(s) will 17389d56c02aSBen Dooks be built which may increase the size of the kernel image. 17399d56c02aSBen Dooks 17409d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG 17419d56c02aSBen Dooks bool "Debug CPUfreq Samsung driver core" 17429d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX 17439d56c02aSBen Dooks help 17449d56c02aSBen Dooks Enable s3c_freq_dbg for the Samsung S3C CPUfreq core 17459d56c02aSBen Dooks 17469d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG 17479d56c02aSBen Dooks bool "Debug CPUfreq Samsung driver IO timing" 17489d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX 17499d56c02aSBen Dooks help 17509d56c02aSBen Dooks Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core 17519d56c02aSBen Dooks 1752e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS 1753e6d197a6SBen Dooks bool "Export debugfs for CPUFreq" 1754e6d197a6SBen Dooks depends on CPU_FREQ_S3C24XX && DEBUG_FS 1755e6d197a6SBen Dooks help 1756e6d197a6SBen Dooks Export status information via debugfs. 1757e6d197a6SBen Dooks 17581da177e4SLinus Torvaldsendif 17591da177e4SLinus Torvalds 1760ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig" 1761ac9d7efcSRussell King 1762ac9d7efcSRussell Kingendmenu 1763ac9d7efcSRussell King 17641da177e4SLinus Torvaldsmenu "Floating point emulation" 17651da177e4SLinus Torvalds 17661da177e4SLinus Torvaldscomment "At least one emulation must be selected" 17671da177e4SLinus Torvalds 17681da177e4SLinus Torvaldsconfig FPE_NWFPE 17691da177e4SLinus Torvalds bool "NWFPE math emulation" 17708993a44cSNicolas Pitre depends on !AEABI || OABI_COMPAT 17711da177e4SLinus Torvalds ---help--- 17721da177e4SLinus Torvalds Say Y to include the NWFPE floating point emulator in the kernel. 17731da177e4SLinus Torvalds This is necessary to run most binaries. Linux does not currently 17741da177e4SLinus Torvalds support floating point hardware so you need to say Y here even if 17751da177e4SLinus Torvalds your machine has an FPA or floating point co-processor podule. 17761da177e4SLinus Torvalds 17771da177e4SLinus Torvalds You may say N here if you are going to load the Acorn FPEmulator 17781da177e4SLinus Torvalds early in the bootup. 17791da177e4SLinus Torvalds 17801da177e4SLinus Torvaldsconfig FPE_NWFPE_XP 17811da177e4SLinus Torvalds bool "Support extended precision" 1782bedf142bSLennert Buytenhek depends on FPE_NWFPE 17831da177e4SLinus Torvalds help 17841da177e4SLinus Torvalds Say Y to include 80-bit support in the kernel floating-point 17851da177e4SLinus Torvalds emulator. Otherwise, only 32 and 64-bit support is compiled in. 17861da177e4SLinus Torvalds Note that gcc does not generate 80-bit operations by default, 17871da177e4SLinus Torvalds so in most cases this option only enlarges the size of the 17881da177e4SLinus Torvalds floating point emulator without any good reason. 17891da177e4SLinus Torvalds 17901da177e4SLinus Torvalds You almost surely want to say N here. 17911da177e4SLinus Torvalds 17921da177e4SLinus Torvaldsconfig FPE_FASTFPE 17931da177e4SLinus Torvalds bool "FastFPE math emulation (EXPERIMENTAL)" 17948993a44cSNicolas Pitre depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL 17951da177e4SLinus Torvalds ---help--- 17961da177e4SLinus Torvalds Say Y here to include the FAST floating point emulator in the kernel. 17971da177e4SLinus Torvalds This is an experimental much faster emulator which now also has full 17981da177e4SLinus Torvalds precision for the mantissa. It does not support any exceptions. 17991da177e4SLinus Torvalds It is very simple, and approximately 3-6 times faster than NWFPE. 18001da177e4SLinus Torvalds 18011da177e4SLinus Torvalds It should be sufficient for most programs. It may be not suitable 18021da177e4SLinus Torvalds for scientific calculations, but you have to check this for yourself. 18031da177e4SLinus Torvalds If you do not feel you need a faster FP emulation you should better 18041da177e4SLinus Torvalds choose NWFPE. 18051da177e4SLinus Torvalds 18061da177e4SLinus Torvaldsconfig VFP 18071da177e4SLinus Torvalds bool "VFP-format floating point maths" 1808c00d4ffdSRussell King depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON 18091da177e4SLinus Torvalds help 18101da177e4SLinus Torvalds Say Y to include VFP support code in the kernel. This is needed 18111da177e4SLinus Torvalds if your hardware includes a VFP unit. 18121da177e4SLinus Torvalds 18131da177e4SLinus Torvalds Please see <file:Documentation/arm/VFP/release-notes.txt> for 18141da177e4SLinus Torvalds release notes and additional status information. 18151da177e4SLinus Torvalds 18161da177e4SLinus Torvalds Say N if your target does not have VFP hardware. 18171da177e4SLinus Torvalds 181825ebee02SCatalin Marinasconfig VFPv3 181925ebee02SCatalin Marinas bool 182025ebee02SCatalin Marinas depends on VFP 182125ebee02SCatalin Marinas default y if CPU_V7 182225ebee02SCatalin Marinas 1823b5872db4SCatalin Marinasconfig NEON 1824b5872db4SCatalin Marinas bool "Advanced SIMD (NEON) Extension support" 1825b5872db4SCatalin Marinas depends on VFPv3 && CPU_V7 1826b5872db4SCatalin Marinas help 1827b5872db4SCatalin Marinas Say Y to include support code for NEON, the ARMv7 Advanced SIMD 1828b5872db4SCatalin Marinas Extension. 1829b5872db4SCatalin Marinas 18301da177e4SLinus Torvaldsendmenu 18311da177e4SLinus Torvalds 18321da177e4SLinus Torvaldsmenu "Userspace binary formats" 18331da177e4SLinus Torvalds 18341da177e4SLinus Torvaldssource "fs/Kconfig.binfmt" 18351da177e4SLinus Torvalds 18361da177e4SLinus Torvaldsconfig ARTHUR 18371da177e4SLinus Torvalds tristate "RISC OS personality" 1838704bdda0SNicolas Pitre depends on !AEABI 18391da177e4SLinus Torvalds help 18401da177e4SLinus Torvalds Say Y here to include the kernel code necessary if you want to run 18411da177e4SLinus Torvalds Acorn RISC OS/Arthur binaries under Linux. This code is still very 18421da177e4SLinus Torvalds experimental; if this sounds frightening, say N and sleep in peace. 18431da177e4SLinus Torvalds You can also say M here to compile this support as a module (which 18441da177e4SLinus Torvalds will be called arthur). 18451da177e4SLinus Torvalds 18461da177e4SLinus Torvaldsendmenu 18471da177e4SLinus Torvalds 18481da177e4SLinus Torvaldsmenu "Power management options" 18491da177e4SLinus Torvalds 1850eceab4acSRussell Kingsource "kernel/power/Kconfig" 18511da177e4SLinus Torvalds 1852f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE 1853f4cb5700SJohannes Berg def_bool y 1854f4cb5700SJohannes Berg 18551da177e4SLinus Torvaldsendmenu 18561da177e4SLinus Torvalds 1857d5950b43SSam Ravnborgsource "net/Kconfig" 1858d5950b43SSam Ravnborg 1859ac25150fSUwe Kleine-Königsource "drivers/Kconfig" 18601da177e4SLinus Torvalds 18611da177e4SLinus Torvaldssource "fs/Kconfig" 18621da177e4SLinus Torvalds 18631da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug" 18641da177e4SLinus Torvalds 18651da177e4SLinus Torvaldssource "security/Kconfig" 18661da177e4SLinus Torvalds 18671da177e4SLinus Torvaldssource "crypto/Kconfig" 18681da177e4SLinus Torvalds 18691da177e4SLinus Torvaldssource "lib/Kconfig" 1870