11da177e4SLinus Torvalds# 21da177e4SLinus Torvalds# For a description of the syntax of this configuration file, 31da177e4SLinus Torvalds# see Documentation/kbuild/kconfig-language.txt. 41da177e4SLinus Torvalds# 51da177e4SLinus Torvalds 61da177e4SLinus Torvaldsmainmenu "Linux Kernel Configuration" 71da177e4SLinus Torvalds 81da177e4SLinus Torvaldsconfig ARM 91da177e4SLinus Torvalds bool 101da177e4SLinus Torvalds default y 11e17c6d56SDavid Woodhouse select HAVE_AOUT 122064c946SAdrian Bunk select HAVE_IDE 1312b824fbSAlessandro Zummo select RTC_LIB 1475e7153aSRalf Baechle select SYS_SUPPORTS_APM_EMULATION 1524b44a66SWill Deacon select GENERIC_ATOMIC64 if (!CPU_32v6K) 1642d4b839SMathieu Desnoyers select HAVE_OPROFILE 175cbad0ebSJason Wessel select HAVE_ARCH_KGDB 183f550096SMathieu Desnoyers select HAVE_KPROBES if (!XIP_KERNEL) 199edddaa2SAnanth N Mavinakayanahalli select HAVE_KRETPROBES if (HAVE_KPROBES) 20606576ceSSteven Rostedt select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) 211fe53268SDmitry Baryshkov select HAVE_GENERIC_DMA_COHERENT 22e7db7b42SAlbin Tonnerre select HAVE_KERNEL_GZIP 23e7db7b42SAlbin Tonnerre select HAVE_KERNEL_LZO 247ada189fSJamie Iles select HAVE_PERF_EVENTS 257ada189fSJamie Iles select PERF_USE_VMALLOC 261da177e4SLinus Torvalds help 271da177e4SLinus Torvalds The ARM series is a line of low-power-consumption RISC chip designs 28f6c8965aSMartin Michlmayr licensed by ARM Ltd and targeted at embedded applications and 291da177e4SLinus Torvalds handhelds such as the Compaq IPAQ. ARM-based PCs are no longer 301da177e4SLinus Torvalds manufactured, but legacy ARM-based PC hardware remains popular in 311da177e4SLinus Torvalds Europe. There is an ARM Linux project with a web page at 321da177e4SLinus Torvalds <http://www.arm.linux.org.uk/>. 331da177e4SLinus Torvalds 341a189b97SRussell Kingconfig HAVE_PWM 351a189b97SRussell King bool 361a189b97SRussell King 3775e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION 3875e7153aSRalf Baechle bool 3975e7153aSRalf Baechle 400a938b97SDavid Brownellconfig GENERIC_GPIO 410a938b97SDavid Brownell bool 420a938b97SDavid Brownell 43746140c7SKevin Hilmanconfig GENERIC_TIME 44746140c7SKevin Hilman bool 45746140c7SKevin Hilman 460567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS 470567a0c0SKevin Hilman bool 480567a0c0SKevin Hilman 49a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST 50a8655e83SCatalin Marinas bool 51a8655e83SCatalin Marinas depends on GENERIC_CLOCKEVENTS 52a8655e83SCatalin Marinas default y if SMP && !LOCAL_TIMERS 53a8655e83SCatalin Marinas 54bc581770SLinus Walleijconfig HAVE_TCM 55bc581770SLinus Walleij bool 56bc581770SLinus Walleij select GENERIC_ALLOCATOR 57bc581770SLinus Walleij 58e119bfffSRussell Kingconfig HAVE_PROC_CPU 59e119bfffSRussell King bool 60e119bfffSRussell King 615ea81769SAl Viroconfig NO_IOPORT 625ea81769SAl Viro bool 635ea81769SAl Viro 641da177e4SLinus Torvaldsconfig EISA 651da177e4SLinus Torvalds bool 661da177e4SLinus Torvalds ---help--- 671da177e4SLinus Torvalds The Extended Industry Standard Architecture (EISA) bus was 681da177e4SLinus Torvalds developed as an open alternative to the IBM MicroChannel bus. 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds The EISA bus provided some of the features of the IBM MicroChannel 711da177e4SLinus Torvalds bus while maintaining backward compatibility with cards made for 721da177e4SLinus Torvalds the older ISA bus. The EISA bus saw limited use between 1988 and 731da177e4SLinus Torvalds 1995 when it was made obsolete by the PCI bus. 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds Say Y here if you are building a kernel for an EISA-based machine. 761da177e4SLinus Torvalds 771da177e4SLinus Torvalds Otherwise, say N. 781da177e4SLinus Torvalds 791da177e4SLinus Torvaldsconfig SBUS 801da177e4SLinus Torvalds bool 811da177e4SLinus Torvalds 821da177e4SLinus Torvaldsconfig MCA 831da177e4SLinus Torvalds bool 841da177e4SLinus Torvalds help 851da177e4SLinus Torvalds MicroChannel Architecture is found in some IBM PS/2 machines and 861da177e4SLinus Torvalds laptops. It is a bus system similar to PCI or ISA. See 871da177e4SLinus Torvalds <file:Documentation/mca.txt> (and especially the web page given 881da177e4SLinus Torvalds there) before attempting to build an MCA bus kernel. 891da177e4SLinus Torvalds 904a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS 914a2581a0SThomas Gleixner bool 924a2581a0SThomas Gleixner default y 934a2581a0SThomas Gleixner 94f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT 95f16fb1ecSRussell King bool 96f16fb1ecSRussell King default y 97f16fb1ecSRussell King 98f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT 99f76e9154SNicolas Pitre bool 100f76e9154SNicolas Pitre depends on !SMP 101f76e9154SNicolas Pitre default y 102f76e9154SNicolas Pitre 103f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT 104f16fb1ecSRussell King bool 105f16fb1ecSRussell King default y 106f16fb1ecSRussell King 1077ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT 1087ad1bcb2SRussell King bool 1097ad1bcb2SRussell King default y 1107ad1bcb2SRussell King 1114a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND 1124a2581a0SThomas Gleixner bool 1134a2581a0SThomas Gleixner default y 1144a2581a0SThomas Gleixner 1154a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE 1164a2581a0SThomas Gleixner bool 1174a2581a0SThomas Gleixner default y 1184a2581a0SThomas Gleixner 11995c354feSNick Pigginconfig GENERIC_LOCKBREAK 12095c354feSNick Piggin bool 12195c354feSNick Piggin default y 12295c354feSNick Piggin depends on SMP && PREEMPT 12395c354feSNick Piggin 1241da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK 1251da177e4SLinus Torvalds bool 1261da177e4SLinus Torvalds default y 1271da177e4SLinus Torvalds 1281da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM 1291da177e4SLinus Torvalds bool 1301da177e4SLinus Torvalds 131f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32 132f0d1b0b3SDavid Howells bool 133f0d1b0b3SDavid Howells 134f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64 135f0d1b0b3SDavid Howells bool 136f0d1b0b3SDavid Howells 13789c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ 13889c52ed4SBen Dooks bool 13989c52ed4SBen Dooks help 14089c52ed4SBen Dooks Internal node to signify that the ARCH has CPUFREQ support 14189c52ed4SBen Dooks and that the relevant menu configurations are displayed for 14289c52ed4SBen Dooks it. 14389c52ed4SBen Dooks 144b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT 145b89c3b16SAkinobu Mita bool 146b89c3b16SAkinobu Mita default y 147b89c3b16SAkinobu Mita 1481da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY 1491da177e4SLinus Torvalds bool 1501da177e4SLinus Torvalds default y 1511da177e4SLinus Torvalds 152a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC 153a08b6b79Sviro@ZenIV.linux.org.uk bool 154a08b6b79Sviro@ZenIV.linux.org.uk 1555ac6da66SChristoph Lameterconfig ZONE_DMA 1565ac6da66SChristoph Lameter bool 1575ac6da66SChristoph Lameter 158ccd7ab7fSFUJITA Tomonoriconfig NEED_DMA_MAP_STATE 159ccd7ab7fSFUJITA Tomonori def_bool y 160ccd7ab7fSFUJITA Tomonori 1611da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA 1621da177e4SLinus Torvalds bool 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvaldsconfig FIQ 1651da177e4SLinus Torvalds bool 1661da177e4SLinus Torvalds 167034d2f5aSAl Viroconfig ARCH_MTD_XIP 168034d2f5aSAl Viro bool 169034d2f5aSAl Viro 17060a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ 17160a752efSPaulius Zaleckas def_bool y 17260a752efSPaulius Zaleckas 173d6d502faSKukjin Kimconfig ARM_L1_CACHE_SHIFT_6 174d6d502faSKukjin Kim bool 175d6d502faSKukjin Kim help 176d6d502faSKukjin Kim Setting ARM L1 cache line size to 64 Bytes. 177d6d502faSKukjin Kim 178c0ffa3a9SMathieu Desnoyersif OPROFILE 179c0ffa3a9SMathieu Desnoyers 180c0ffa3a9SMathieu Desnoyersconfig OPROFILE_ARMV6 181c0ffa3a9SMathieu Desnoyers def_bool y 182c0ffa3a9SMathieu Desnoyers depends on CPU_V6 && !SMP 183c0ffa3a9SMathieu Desnoyers select OPROFILE_ARM11_CORE 184c0ffa3a9SMathieu Desnoyers 185c0ffa3a9SMathieu Desnoyersconfig OPROFILE_MPCORE 186c0ffa3a9SMathieu Desnoyers def_bool y 187c0ffa3a9SMathieu Desnoyers depends on CPU_V6 && SMP 188c0ffa3a9SMathieu Desnoyers select OPROFILE_ARM11_CORE 189c0ffa3a9SMathieu Desnoyers 190c0ffa3a9SMathieu Desnoyersconfig OPROFILE_ARM11_CORE 191c0ffa3a9SMathieu Desnoyers bool 192c0ffa3a9SMathieu Desnoyers 193d7ac4e28SJean PIHETconfig OPROFILE_ARMV7 194d7ac4e28SJean PIHET def_bool y 195d7ac4e28SJean PIHET depends on CPU_V7 && !SMP 196d7ac4e28SJean PIHET bool 197d7ac4e28SJean PIHET 198c0ffa3a9SMathieu Desnoyersendif 199c0ffa3a9SMathieu Desnoyers 200c760fc19SHyok S. Choiconfig VECTORS_BASE 201c760fc19SHyok S. Choi hex 2026afd6faeSHyok S. Choi default 0xffff0000 if MMU || CPU_HIGH_VECTOR 203c760fc19SHyok S. Choi default DRAM_BASE if REMAP_VECTORS_TO_RAM 204c760fc19SHyok S. Choi default 0x00000000 205c760fc19SHyok S. Choi help 206c760fc19SHyok S. Choi The base address of exception vectors. 207c760fc19SHyok S. Choi 2081da177e4SLinus Torvaldssource "init/Kconfig" 2091da177e4SLinus Torvalds 210dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer" 211dc52ddc0SMatt Helsley 2121da177e4SLinus Torvaldsmenu "System Type" 2131da177e4SLinus Torvalds 2143c427975SHyok S. Choiconfig MMU 2153c427975SHyok S. Choi bool "MMU-based Paged Memory Management Support" 2163c427975SHyok S. Choi default y 2173c427975SHyok S. Choi help 2183c427975SHyok S. Choi Select if you want MMU-based virtualised addressing space 2193c427975SHyok S. Choi support by paged memory management. If unsure, say 'Y'. 2203c427975SHyok S. Choi 221ccf50e23SRussell King# 222ccf50e23SRussell King# The "ARM system type" choice list is ordered alphabetically by option 223ccf50e23SRussell King# text. Please add new entries in the option alphabetic order. 224ccf50e23SRussell King# 2251da177e4SLinus Torvaldschoice 2261da177e4SLinus Torvalds prompt "ARM system type" 2276a0e2430SCatalin Marinas default ARCH_VERSATILE 2281da177e4SLinus Torvalds 2294af6fee1SDeepak Saxenaconfig ARCH_AAEC2000 2304af6fee1SDeepak Saxena bool "Agilent AAEC-2000 based" 231c750815eSRussell King select CPU_ARM920T 2324af6fee1SDeepak Saxena select ARM_AMBA 2339483a578SDavid Brownell select HAVE_CLK 2344af6fee1SDeepak Saxena help 2354af6fee1SDeepak Saxena This enables support for systems based on the Agilent AAEC-2000 2364af6fee1SDeepak Saxena 2374af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR 2384af6fee1SDeepak Saxena bool "ARM Ltd. Integrator family" 2394af6fee1SDeepak Saxena select ARM_AMBA 24089c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 2419483a578SDavid Brownell select HAVE_CLK 242d72fbdf0SRussell King select COMMON_CLKDEV 2434af6fee1SDeepak Saxena select ICST525 2444af6fee1SDeepak Saxena help 2454af6fee1SDeepak Saxena Support for ARM's Integrator platform. 2464af6fee1SDeepak Saxena 2474af6fee1SDeepak Saxenaconfig ARCH_REALVIEW 2484af6fee1SDeepak Saxena bool "ARM Ltd. RealView family" 2494af6fee1SDeepak Saxena select ARM_AMBA 2509483a578SDavid Brownell select HAVE_CLK 251cf30fb4aSRussell King select COMMON_CLKDEV 2524af6fee1SDeepak Saxena select ICST307 25385802afeSCatalin Marinas select GENERIC_TIME 254ae30ceacSCatalin Marinas select GENERIC_CLOCKEVENTS 255eb7fffa3SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 256b56ba8aaSColin Tuckley select GPIO_PL061 if GPIOLIB 2574af6fee1SDeepak Saxena help 2584af6fee1SDeepak Saxena This enables support for ARM Ltd RealView boards. 2594af6fee1SDeepak Saxena 2604af6fee1SDeepak Saxenaconfig ARCH_VERSATILE 2614af6fee1SDeepak Saxena bool "ARM Ltd. Versatile family" 2624af6fee1SDeepak Saxena select ARM_AMBA 2634af6fee1SDeepak Saxena select ARM_VIC 2649483a578SDavid Brownell select HAVE_CLK 26571a06da0SRussell King select COMMON_CLKDEV 2664af6fee1SDeepak Saxena select ICST307 267b49c87c2SKevin Hilman select GENERIC_TIME 26889df1272SKevin Hilman select GENERIC_CLOCKEVENTS 269bbeddc43SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 2704af6fee1SDeepak Saxena help 2714af6fee1SDeepak Saxena This enables support for ARM Ltd Versatile board. 2724af6fee1SDeepak Saxena 2738fc5ffa0SAndrew Victorconfig ARCH_AT91 2748fc5ffa0SAndrew Victor bool "Atmel AT91" 2750a938b97SDavid Brownell select GENERIC_GPIO 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_TIME 289ccf50e23SRussell King select GENERIC_CLOCKEVENTS 290ccf50e23SRussell King select ARCH_WANT_OPTIONAL_GPIOLIB 291ccf50e23SRussell King help 292ccf50e23SRussell King Support for Broadcom's BCMRing platform. 293ccf50e23SRussell King 2941da177e4SLinus Torvaldsconfig ARCH_CLPS711X 2954af6fee1SDeepak Saxena bool "Cirrus Logic CLPS711x/EP721x-based" 296c750815eSRussell King select CPU_ARM720T 297f999b8bdSMartin Michlmayr help 298f999b8bdSMartin Michlmayr Support for Cirrus Logic 711x/721x based boards. 2991da177e4SLinus Torvalds 300788c9700SRussell Kingconfig ARCH_GEMINI 301788c9700SRussell King bool "Cortina Systems Gemini" 302788c9700SRussell King select CPU_FA526 303788c9700SRussell King select GENERIC_GPIO 304788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 305788c9700SRussell King help 306788c9700SRussell King Support for the Cortina Systems Gemini family SoCs 307788c9700SRussell King 3081da177e4SLinus Torvaldsconfig ARCH_EBSA110 3091da177e4SLinus Torvalds bool "EBSA-110" 310c750815eSRussell King select CPU_SA110 311f7e68bbfSRussell King select ISA 312c5eb2a2bSRussell King select NO_IOPORT 3131da177e4SLinus Torvalds help 3141da177e4SLinus Torvalds This is an evaluation board for the StrongARM processor available 315f6c8965aSMartin Michlmayr from Digital. It has limited hardware on-board, including an 3161da177e4SLinus Torvalds Ethernet interface, two PCMCIA sockets, two serial ports and a 3171da177e4SLinus Torvalds parallel port. 3181da177e4SLinus Torvalds 319e7736d47SLennert Buytenhekconfig ARCH_EP93XX 320e7736d47SLennert Buytenhek bool "EP93xx-based" 321c750815eSRussell King select CPU_ARM920T 322e7736d47SLennert Buytenhek select ARM_AMBA 323e7736d47SLennert Buytenhek select ARM_VIC 3244e9f9fd5SHerbert Valerio Riedel select GENERIC_GPIO 3259483a578SDavid Brownell select HAVE_CLK 326ae696fd5SRussell King select COMMON_CLKDEV 3277444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 328eb33575cSMel Gorman select ARCH_HAS_HOLES_MEMORYMODEL 329e7736d47SLennert Buytenhek help 330e7736d47SLennert Buytenhek This enables support for the Cirrus EP93xx series of CPUs. 331e7736d47SLennert Buytenhek 3321da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE 3331da177e4SLinus Torvalds bool "FootBridge" 334c750815eSRussell King select CPU_SA110 3351da177e4SLinus Torvalds select FOOTBRIDGE 336f999b8bdSMartin Michlmayr help 337f999b8bdSMartin Michlmayr Support for systems based on the DC21285 companion chip 338f999b8bdSMartin Michlmayr ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. 3391da177e4SLinus Torvalds 340788c9700SRussell Kingconfig ARCH_MXC 341788c9700SRussell King bool "Freescale MXC/iMX-based" 342788c9700SRussell King select GENERIC_TIME 343788c9700SRussell King select GENERIC_CLOCKEVENTS 344788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 345a2ab67faSRussell King select HAVE_CLK 34603e09cd8SUwe Kleine-König select COMMON_CLKDEV 347788c9700SRussell King help 348788c9700SRussell King Support for Freescale MXC/iMX-based family of processors 349788c9700SRussell King 3507bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX 3517bd0f2f5Sdmitry pervushin bool "Freescale STMP3xxx" 3527bd0f2f5Sdmitry pervushin select CPU_ARM926T 3537bd0f2f5Sdmitry pervushin select HAVE_CLK 3547bd0f2f5Sdmitry pervushin select COMMON_CLKDEV 3557bd0f2f5Sdmitry pervushin select ARCH_REQUIRE_GPIOLIB 3567bd0f2f5Sdmitry pervushin select GENERIC_TIME 3577bd0f2f5Sdmitry pervushin select GENERIC_CLOCKEVENTS 3587bd0f2f5Sdmitry pervushin select GENERIC_GPIO 3597bd0f2f5Sdmitry pervushin select USB_ARCH_HAS_EHCI 3607bd0f2f5Sdmitry pervushin help 3617bd0f2f5Sdmitry pervushin Support for systems based on the Freescale 3xxx CPUs. 3627bd0f2f5Sdmitry pervushin 3634af6fee1SDeepak Saxenaconfig ARCH_NETX 3644af6fee1SDeepak Saxena bool "Hilscher NetX based" 365c750815eSRussell King select CPU_ARM926T 3664af6fee1SDeepak Saxena select ARM_VIC 3672fcfe6b8SUwe Kleine-König select GENERIC_CLOCKEVENTS 36821edecd3SUwe Kleine-König select GENERIC_TIME 369f999b8bdSMartin Michlmayr help 3704af6fee1SDeepak Saxena This enables support for systems based on the Hilscher NetX Soc 3714af6fee1SDeepak Saxena 3724af6fee1SDeepak Saxenaconfig ARCH_H720X 3734af6fee1SDeepak Saxena bool "Hynix HMS720x-based" 374c750815eSRussell King select CPU_ARM720T 3754af6fee1SDeepak Saxena select ISA_DMA_API 3764af6fee1SDeepak Saxena help 3774af6fee1SDeepak Saxena This enables support for systems based on the Hynix HMS720x 3784af6fee1SDeepak Saxena 3793b938be6SRussell Kingconfig ARCH_IOP13XX 3803b938be6SRussell King bool "IOP13xx-based" 3813b938be6SRussell King depends on MMU 382c750815eSRussell King select CPU_XSC3 3833b938be6SRussell King select PLAT_IOP 3843b938be6SRussell King select PCI 3853b938be6SRussell King select ARCH_SUPPORTS_MSI 3868d5796d2SLennert Buytenhek select VMSPLIT_1G 3873b938be6SRussell King help 3883b938be6SRussell King Support for Intel's IOP13XX (XScale) family of processors. 3893b938be6SRussell King 3903f7e5815SLennert Buytenhekconfig ARCH_IOP32X 3913f7e5815SLennert Buytenhek bool "IOP32x-based" 392a4f7e763SRussell King depends on MMU 393c750815eSRussell King select CPU_XSCALE 3947ae1f7ecSLennert Buytenhek select PLAT_IOP 395f7e68bbfSRussell King select PCI 39663f385cdSArnaud Patard select GENERIC_GPIO 397bb2b180cSRussell King select ARCH_REQUIRE_GPIOLIB 398f999b8bdSMartin Michlmayr help 3993f7e5815SLennert Buytenhek Support for Intel's 80219 and IOP32X (XScale) family of 4003f7e5815SLennert Buytenhek processors. 4013f7e5815SLennert Buytenhek 4023f7e5815SLennert Buytenhekconfig ARCH_IOP33X 4033f7e5815SLennert Buytenhek bool "IOP33x-based" 4043f7e5815SLennert Buytenhek depends on MMU 405c750815eSRussell King select CPU_XSCALE 4067ae1f7ecSLennert Buytenhek select PLAT_IOP 4073f7e5815SLennert Buytenhek select PCI 40863f385cdSArnaud Patard select GENERIC_GPIO 409bb2b180cSRussell King select ARCH_REQUIRE_GPIOLIB 4103f7e5815SLennert Buytenhek help 4113f7e5815SLennert Buytenhek Support for Intel's IOP33X (XScale) family of processors. 4121da177e4SLinus Torvalds 4133b938be6SRussell Kingconfig ARCH_IXP23XX 4143b938be6SRussell King bool "IXP23XX-based" 415588ef769SDan Williams depends on MMU 416c750815eSRussell King select CPU_XSC3 417285f5fa7SDan Williams select PCI 418285f5fa7SDan Williams help 4193b938be6SRussell King Support for Intel's IXP23xx (XScale) family of processors. 4201da177e4SLinus Torvalds 4211da177e4SLinus Torvaldsconfig ARCH_IXP2000 4221da177e4SLinus Torvalds bool "IXP2400/2800-based" 423a4f7e763SRussell King depends on MMU 424c750815eSRussell King select CPU_XSCALE 425f7e68bbfSRussell King select PCI 426f999b8bdSMartin Michlmayr help 427f999b8bdSMartin Michlmayr Support for Intel's IXP2400/2800 (XScale) family of processors. 4281da177e4SLinus Torvalds 4293b938be6SRussell Kingconfig ARCH_IXP4XX 4303b938be6SRussell King bool "IXP4xx-based" 431a4f7e763SRussell King depends on MMU 432c750815eSRussell King select CPU_XSCALE 4338858e9afSMilan Svoboda select GENERIC_GPIO 4343b938be6SRussell King select GENERIC_TIME 4353b938be6SRussell King select GENERIC_CLOCKEVENTS 436485bdde7SRussell King select DMABOUNCE if PCI 437c4713074SLennert Buytenhek help 4383b938be6SRussell King Support for Intel's IXP4XX (XScale) family of processors. 439c4713074SLennert Buytenhek 4401da177e4SLinus Torvaldsconfig ARCH_L7200 4411da177e4SLinus Torvalds bool "LinkUp-L7200" 442c750815eSRussell King select CPU_ARM720T 4431da177e4SLinus Torvalds select FIQ 4441da177e4SLinus Torvalds help 4451da177e4SLinus Torvalds Say Y here if you intend to run this kernel on a LinkUp Systems 4461da177e4SLinus Torvalds L7200 Software Development Board which uses an ARM720T processor. 4471da177e4SLinus Torvalds Information on this board can be obtained at: 4481da177e4SLinus Torvalds 4491da177e4SLinus Torvalds <http://www.linkupsys.com/> 4501da177e4SLinus Torvalds 4511da177e4SLinus Torvalds If you have any questions or comments about the Linux kernel port 4521da177e4SLinus Torvalds to this board, send e-mail to <sjhill@cotw.com>. 4531da177e4SLinus Torvalds 454edabd38eSSaeed Bisharaconfig ARCH_DOVE 455edabd38eSSaeed Bishara bool "Marvell Dove" 456edabd38eSSaeed Bishara select PCI 457edabd38eSSaeed Bishara select GENERIC_GPIO 458edabd38eSSaeed Bishara select ARCH_REQUIRE_GPIOLIB 459edabd38eSSaeed Bishara select GENERIC_TIME 460edabd38eSSaeed Bishara select GENERIC_CLOCKEVENTS 461edabd38eSSaeed Bishara select PLAT_ORION 462edabd38eSSaeed Bishara help 463edabd38eSSaeed Bishara Support for the Marvell Dove SoC 88AP510 464edabd38eSSaeed Bishara 465651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD 466651c74c7SSaeed Bishara bool "Marvell Kirkwood" 467c750815eSRussell King select CPU_FEROCEON 468651c74c7SSaeed Bishara select PCI 4694c213430SLennert Buytenhek select GENERIC_GPIO 470a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 471651c74c7SSaeed Bishara select GENERIC_TIME 472651c74c7SSaeed Bishara select GENERIC_CLOCKEVENTS 473651c74c7SSaeed Bishara select PLAT_ORION 474651c74c7SSaeed Bishara help 475651c74c7SSaeed Bishara Support for the following Marvell Kirkwood series SoCs: 476651c74c7SSaeed Bishara 88F6180, 88F6192 and 88F6281. 477651c74c7SSaeed Bishara 478788c9700SRussell Kingconfig ARCH_LOKI 479788c9700SRussell King bool "Marvell Loki (88RC8480)" 480788c9700SRussell King select CPU_FEROCEON 481788c9700SRussell King select GENERIC_TIME 482788c9700SRussell King select GENERIC_CLOCKEVENTS 483788c9700SRussell King select PLAT_ORION 484788c9700SRussell King help 485788c9700SRussell King Support for the Marvell Loki (88RC8480) SoC. 486788c9700SRussell King 487788c9700SRussell Kingconfig ARCH_MV78XX0 488788c9700SRussell King bool "Marvell MV78xx0" 489788c9700SRussell King select CPU_FEROCEON 490788c9700SRussell King select PCI 491788c9700SRussell King select GENERIC_GPIO 492a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 493788c9700SRussell King select GENERIC_TIME 494788c9700SRussell King select GENERIC_CLOCKEVENTS 495788c9700SRussell King select PLAT_ORION 496788c9700SRussell King help 497788c9700SRussell King Support for the following Marvell MV78xx0 series SoCs: 498788c9700SRussell King MV781x0, MV782x0. 499788c9700SRussell King 500788c9700SRussell Kingconfig ARCH_ORION5X 501788c9700SRussell King bool "Marvell Orion" 502788c9700SRussell King depends on MMU 503788c9700SRussell King select CPU_FEROCEON 504788c9700SRussell King select PCI 505788c9700SRussell King select GENERIC_GPIO 506a8865655SErik Benada select ARCH_REQUIRE_GPIOLIB 507788c9700SRussell King select GENERIC_TIME 508788c9700SRussell King select GENERIC_CLOCKEVENTS 509788c9700SRussell King select PLAT_ORION 510788c9700SRussell King help 511788c9700SRussell King Support for the following Marvell Orion 5x series SoCs: 512788c9700SRussell King Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182), 513788c9700SRussell King Orion-2 (5281), Orion-1-90 (6183). 514788c9700SRussell King 515788c9700SRussell Kingconfig ARCH_MMP 5162f7e8faeSHaojian Zhuang bool "Marvell PXA168/910/MMP2" 517788c9700SRussell King depends on MMU 518788c9700SRussell King select GENERIC_GPIO 519788c9700SRussell King select ARCH_REQUIRE_GPIOLIB 520788c9700SRussell King select HAVE_CLK 521788c9700SRussell King select COMMON_CLKDEV 522788c9700SRussell King select GENERIC_TIME 523788c9700SRussell King select GENERIC_CLOCKEVENTS 524788c9700SRussell King select TICK_ONESHOT 525788c9700SRussell King select PLAT_PXA 526788c9700SRussell King help 5272f7e8faeSHaojian Zhuang Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line. 528788c9700SRussell King 529c53c9cf6SAndrew Victorconfig ARCH_KS8695 530c53c9cf6SAndrew Victor bool "Micrel/Kendin KS8695" 531c750815eSRussell King select CPU_ARM922T 5328a87a996SAndrew Victor select GENERIC_GPIO 53372880ad8SDaniel Silverstone select ARCH_REQUIRE_GPIOLIB 534c53c9cf6SAndrew Victor help 535c53c9cf6SAndrew Victor Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based 536c53c9cf6SAndrew Victor System-on-Chip devices. 537c53c9cf6SAndrew Victor 5389918cda5SUwe Kleine-Königconfig ARCH_NS9XXX 5399918cda5SUwe Kleine-König bool "NetSilicon NS9xxx" 540c750815eSRussell King select CPU_ARM926T 541689f2a01SUwe Kleine-König select GENERIC_GPIO 542cef5975dSUwe Kleine-König select GENERIC_TIME 543c0bb87f7SUwe Kleine-König select GENERIC_CLOCKEVENTS 5449483a578SDavid Brownell select HAVE_CLK 5459918cda5SUwe Kleine-König help 5469918cda5SUwe Kleine-König Say Y here if you intend to run this kernel on a NetSilicon NS9xxx 5479918cda5SUwe Kleine-König System. 5489918cda5SUwe Kleine-König 5499918cda5SUwe Kleine-König <http://www.digi.com/products/microprocessors/index.jsp> 5509918cda5SUwe Kleine-König 551788c9700SRussell Kingconfig ARCH_W90X900 552788c9700SRussell King bool "Nuvoton W90X900 CPU" 553788c9700SRussell King select CPU_ARM926T 554c52d3d68Swanzongshun select ARCH_REQUIRE_GPIOLIB 555c52d3d68Swanzongshun select GENERIC_GPIO 556d2c24195Swanzongshun select HAVE_CLK 5570e4a34bbSwanzongshun select COMMON_CLKDEV 55858b5369eSwanzongshun select GENERIC_TIME 55958b5369eSwanzongshun select GENERIC_CLOCKEVENTS 560777f9bebSLennert Buytenhek help 561a8bc4eadSwanzongshun Support for Nuvoton (Winbond logic dept.) ARM9 processor, 562a8bc4eadSwanzongshun At present, the w90x900 has been renamed nuc900, regarding 563a8bc4eadSwanzongshun the ARM series product line, you can login the following 564a8bc4eadSwanzongshun link address to know more. 565a8bc4eadSwanzongshun 566a8bc4eadSwanzongshun <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ 567a8bc4eadSwanzongshun ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> 568585cf175STzachi Perelstein 569a62e9030Swanzongshunconfig ARCH_NUC93X 570a62e9030Swanzongshun bool "Nuvoton NUC93X CPU" 571a62e9030Swanzongshun select CPU_ARM926T 572a62e9030Swanzongshun select HAVE_CLK 573a62e9030Swanzongshun select COMMON_CLKDEV 574a62e9030Swanzongshun help 575a62e9030Swanzongshun Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a 576a62e9030Swanzongshun low-power and high performance MPEG-4/JPEG multimedia controller chip. 577a62e9030Swanzongshun 5784af6fee1SDeepak Saxenaconfig ARCH_PNX4008 5794af6fee1SDeepak Saxena bool "Philips Nexperia PNX4008 Mobile" 580c750815eSRussell King select CPU_ARM926T 5819483a578SDavid Brownell select HAVE_CLK 5826985a5adSRussell King select COMMON_CLKDEV 5834af6fee1SDeepak Saxena help 5844af6fee1SDeepak Saxena This enables support for Philips PNX4008 mobile platform. 5854af6fee1SDeepak Saxena 5861da177e4SLinus Torvaldsconfig ARCH_PXA 5872c8086a5Seric miao bool "PXA2xx/PXA3xx-based" 588a4f7e763SRussell King depends on MMU 589034d2f5aSAl Viro select ARCH_MTD_XIP 59089c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 5910a938b97SDavid Brownell select GENERIC_GPIO 5929483a578SDavid Brownell select HAVE_CLK 5938c3abc7dSRussell King select COMMON_CLKDEV 5947444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 59545cf5eefSNicolas Pitre select GENERIC_TIME 596981d0f39SEric Miao select GENERIC_CLOCKEVENTS 597a88264c2SRussell King select TICK_ONESHOT 598bd5ce433SEric Miao select PLAT_PXA 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" 604788c9700SRussell King select CPU_V6 60549cbe786SEric Miao select GENERIC_TIME 60649cbe786SEric Miao select GENERIC_CLOCKEVENTS 60749cbe786SEric Miao help 608788c9700SRussell King Support for Qualcomm MSM7K based systems. This runs on the ARM11 609788c9700SRussell King apps processor of the MSM7K and depends on a shared memory 610788c9700SRussell King interface to the ARM9 modem processor which runs the baseband stack 611788c9700SRussell King and controls some vital subsystems (clock and power control, etc). 61249cbe786SEric Miao 613c793c1b0SMagnus Dammconfig ARCH_SHMOBILE 614c793c1b0SMagnus Damm bool "Renesas SH-Mobile" 615c793c1b0SMagnus Damm help 616c793c1b0SMagnus Damm Support for Renesas's SH-Mobile ARM platforms 617c793c1b0SMagnus Damm 6181da177e4SLinus Torvaldsconfig ARCH_RPC 6191da177e4SLinus Torvalds bool "RiscPC" 6201da177e4SLinus Torvalds select ARCH_ACORN 6211da177e4SLinus Torvalds select FIQ 6221da177e4SLinus Torvalds select TIMER_ACORN 623a08b6b79Sviro@ZenIV.linux.org.uk select ARCH_MAY_HAVE_PC_FDC 624341eb781SBen Dooks select HAVE_PATA_PLATFORM 625065909b9SRussell King select ISA_DMA_API 6265ea81769SAl Viro select NO_IOPORT 62707f841b7SRussell King select ARCH_SPARSEMEM_ENABLE 6281da177e4SLinus Torvalds help 6291da177e4SLinus Torvalds On the Acorn Risc-PC, Linux can support the internal IDE disk and 6301da177e4SLinus Torvalds CD-ROM interface, serial and parallel port, and the floppy drive. 6311da177e4SLinus Torvalds 6321da177e4SLinus Torvaldsconfig ARCH_SA1100 6331da177e4SLinus Torvalds bool "SA1100-based" 634c750815eSRussell King select CPU_SA1100 635f7e68bbfSRussell King select ISA 63605944d74SRussell King select ARCH_SPARSEMEM_ENABLE 637034d2f5aSAl Viro select ARCH_MTD_XIP 63889c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 6391937f5b9SRussell King select CPU_FREQ 6400a938b97SDavid Brownell select GENERIC_GPIO 641d142b6e7SRussell King select GENERIC_TIME 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 6541da177e4SLinus Torvalds help 6551da177e4SLinus Torvalds Samsung S3C2410X CPU based systems, such as the Simtec Electronics 6561da177e4SLinus Torvalds BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or 657f6c8965aSMartin Michlmayr the Samsung SMDK2410 development board (and derivatives). 6581da177e4SLinus Torvalds 65963b1f51bSBen Dooks Note, the S3C2416 and the S3C2450 are so close that they even share 66063b1f51bSBen Dooks the same SoC ID code. This means that there is no seperate machine 66163b1f51bSBen Dooks directory (no arch/arm/mach-s3c2450) as the S3C2416 was first. 66263b1f51bSBen Dooks 663a08ab637SBen Dooksconfig ARCH_S3C64XX 664a08ab637SBen Dooks bool "Samsung S3C64XX" 66589f1fa08SBen Dooks select PLAT_SAMSUNG 66689f0ce72SBen Dooks select CPU_V6 667a08ab637SBen Dooks select GENERIC_GPIO 66889f0ce72SBen Dooks select ARM_VIC 669a08ab637SBen Dooks select HAVE_CLK 67089f0ce72SBen Dooks select NO_IOPORT 67189c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 67289f0ce72SBen Dooks select ARCH_REQUIRE_GPIOLIB 67389f0ce72SBen Dooks select SAMSUNG_CLKSRC 67489f0ce72SBen Dooks select SAMSUNG_IRQ_VIC_TIMER 67589f0ce72SBen Dooks select SAMSUNG_IRQ_UART 67689f0ce72SBen Dooks select S3C_GPIO_TRACK 67789f0ce72SBen Dooks select S3C_GPIO_PULL_UPDOWN 67889f0ce72SBen Dooks select S3C_GPIO_CFG_S3C24XX 67989f0ce72SBen Dooks select S3C_GPIO_CFG_S3C64XX 68089f0ce72SBen Dooks select S3C_DEV_NAND 68189f0ce72SBen Dooks select USB_ARCH_HAS_OHCI 68289f0ce72SBen Dooks select SAMSUNG_GPIOLIB_4BIT 683a08ab637SBen Dooks help 684a08ab637SBen Dooks Samsung S3C64XX series based systems 685a08ab637SBen Dooks 686c4ffccddSKukjin Kimconfig ARCH_S5P6440 687c4ffccddSKukjin Kim bool "Samsung S5P6440" 688c4ffccddSKukjin Kim select CPU_V6 689c4ffccddSKukjin Kim select GENERIC_GPIO 690c4ffccddSKukjin Kim select HAVE_CLK 691*925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 692c4ffccddSKukjin Kim help 693c4ffccddSKukjin Kim Samsung S5P6440 CPU based systems 694c4ffccddSKukjin Kim 695550db7f1SKukjin Kimconfig ARCH_S5P6442 696550db7f1SKukjin Kim bool "Samsung S5P6442" 697550db7f1SKukjin Kim select CPU_V6 698550db7f1SKukjin Kim select GENERIC_GPIO 699550db7f1SKukjin Kim select HAVE_CLK 700*925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 701550db7f1SKukjin Kim help 702550db7f1SKukjin Kim Samsung S5P6442 CPU based systems 703550db7f1SKukjin Kim 704acc84707SMarek Szyprowskiconfig ARCH_S5PC100 705acc84707SMarek Szyprowski bool "Samsung S5PC100" 7065a7652f2SByungho Min select GENERIC_GPIO 7075a7652f2SByungho Min select HAVE_CLK 7085a7652f2SByungho Min select CPU_V7 709d6d502faSKukjin Kim select ARM_L1_CACHE_SHIFT_6 710*925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 7115a7652f2SByungho Min help 712acc84707SMarek Szyprowski Samsung S5PC100 series based systems 7135a7652f2SByungho Min 714170f4e42SKukjin Kimconfig ARCH_S5PV210 715170f4e42SKukjin Kim bool "Samsung S5PV210/S5PC110" 716170f4e42SKukjin Kim select CPU_V7 717170f4e42SKukjin Kim select GENERIC_GPIO 718170f4e42SKukjin Kim select HAVE_CLK 719170f4e42SKukjin Kim select ARM_L1_CACHE_SHIFT_6 720*925c68cdSBen Dooks select ARCH_USES_GETTIMEOFFSET 721170f4e42SKukjin Kim help 722170f4e42SKukjin Kim Samsung S5PV210/S5PC110 series based systems 723170f4e42SKukjin Kim 7241da177e4SLinus Torvaldsconfig ARCH_SHARK 7251da177e4SLinus Torvalds bool "Shark" 726c750815eSRussell King select CPU_SA110 727f7e68bbfSRussell King select ISA 728f7e68bbfSRussell King select ISA_DMA 7293bca103aSNicolas Pitre select ZONE_DMA 730f7e68bbfSRussell King select PCI 731f999b8bdSMartin Michlmayr help 732f999b8bdSMartin Michlmayr Support for the StrongARM based Digital DNARD machine, also known 733f999b8bdSMartin Michlmayr as "Shark" (<http://www.shark-linux.de/shark.html>). 7341da177e4SLinus Torvalds 7351da177e4SLinus Torvaldsconfig ARCH_LH7A40X 7361da177e4SLinus Torvalds bool "Sharp LH7A40X" 737c750815eSRussell King select CPU_ARM922T 7384ba3f7c5SRussell King select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM 7394ba3f7c5SRussell King select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM 7401da177e4SLinus Torvalds help 7411da177e4SLinus Torvalds Say Y here for systems based on one of the Sharp LH7A40X 7421da177e4SLinus Torvalds System on a Chip processors. These CPUs include an ARM922T 7431da177e4SLinus Torvalds core with a wide array of integrated devices for 7441da177e4SLinus Torvalds hand-held and low-power applications. 7451da177e4SLinus Torvalds 746d98aac75SLinus Walleijconfig ARCH_U300 747d98aac75SLinus Walleij bool "ST-Ericsson U300 Series" 748d98aac75SLinus Walleij depends on MMU 749d98aac75SLinus Walleij select CPU_ARM926T 750bc581770SLinus Walleij select HAVE_TCM 751d98aac75SLinus Walleij select ARM_AMBA 752d98aac75SLinus Walleij select ARM_VIC 753d98aac75SLinus Walleij select GENERIC_TIME 754d98aac75SLinus Walleij select GENERIC_CLOCKEVENTS 755d98aac75SLinus Walleij select HAVE_CLK 756d98aac75SLinus Walleij select COMMON_CLKDEV 757d98aac75SLinus Walleij select GENERIC_GPIO 758d98aac75SLinus Walleij help 759d98aac75SLinus Walleij Support for ST-Ericsson U300 series mobile platforms. 760d98aac75SLinus Walleij 761ccf50e23SRussell Kingconfig ARCH_U8500 762ccf50e23SRussell King bool "ST-Ericsson U8500 Series" 763ccf50e23SRussell King select CPU_V7 764ccf50e23SRussell King select ARM_AMBA 765ccf50e23SRussell King select GENERIC_TIME 766ccf50e23SRussell King select GENERIC_CLOCKEVENTS 767ccf50e23SRussell King select COMMON_CLKDEV 768ccf50e23SRussell King help 769ccf50e23SRussell King Support for ST-Ericsson's Ux500 architecture 770ccf50e23SRussell King 771ccf50e23SRussell Kingconfig ARCH_NOMADIK 772ccf50e23SRussell King bool "STMicroelectronics Nomadik" 773ccf50e23SRussell King select ARM_AMBA 774ccf50e23SRussell King select ARM_VIC 775ccf50e23SRussell King select CPU_ARM926T 776ccf50e23SRussell King select HAVE_CLK 777ccf50e23SRussell King select COMMON_CLKDEV 778ccf50e23SRussell King select GENERIC_TIME 779ccf50e23SRussell King select GENERIC_CLOCKEVENTS 780ccf50e23SRussell King select GENERIC_GPIO 781ccf50e23SRussell King select ARCH_REQUIRE_GPIOLIB 782ccf50e23SRussell King help 783ccf50e23SRussell King Support for the Nomadik platform by ST-Ericsson 784ccf50e23SRussell King 7857c6337e2SKevin Hilmanconfig ARCH_DAVINCI 7867c6337e2SKevin Hilman bool "TI DaVinci" 787c750815eSRussell King select CPU_ARM926T 7887c6337e2SKevin Hilman select GENERIC_TIME 7897c6337e2SKevin Hilman select GENERIC_CLOCKEVENTS 7903d9edf09SVladimir Barinov select GENERIC_GPIO 791dce1115bSDavid Brownell select ARCH_REQUIRE_GPIOLIB 7929483a578SDavid Brownell select HAVE_CLK 7933bca103aSNicolas Pitre select ZONE_DMA 7949232fcc9SKevin Hilman select HAVE_IDE 795c5b736d0SKevin Hilman select COMMON_CLKDEV 79620e9969bSDavid Brownell select GENERIC_ALLOCATOR 797ae88e05aSSekhar Nori select ARCH_HAS_HOLES_MEMORYMODEL 7987c6337e2SKevin Hilman help 7997c6337e2SKevin Hilman Support for TI's DaVinci platform. 8007c6337e2SKevin Hilman 8013b938be6SRussell Kingconfig ARCH_OMAP 8023b938be6SRussell King bool "TI OMAP" 8033b938be6SRussell King select GENERIC_GPIO 8049483a578SDavid Brownell select HAVE_CLK 8057444a72eSMichael Buesch select ARCH_REQUIRE_GPIOLIB 80689c52ed4SBen Dooks select ARCH_HAS_CPUFREQ 8073b938be6SRussell King select GENERIC_TIME 80806cad098SKevin Hilman select GENERIC_CLOCKEVENTS 8099af915daSSriram select ARCH_HAS_HOLES_MEMORYMODEL 8103b938be6SRussell King help 8113b938be6SRussell King Support for TI's OMAP platform (OMAP1 and OMAP2). 8123b938be6SRussell King 8131da177e4SLinus Torvaldsendchoice 8141da177e4SLinus Torvalds 815ccf50e23SRussell King# 816ccf50e23SRussell King# This is sorted alphabetically by mach-* pathname. However, plat-* 817ccf50e23SRussell King# Kconfigs may be included either alphabetically (according to the 818ccf50e23SRussell King# plat- suffix) or along side the corresponding mach-* source. 819ccf50e23SRussell King# 82095b8f20fSRussell Kingsource "arch/arm/mach-aaec2000/Kconfig" 82195b8f20fSRussell King 82295b8f20fSRussell Kingsource "arch/arm/mach-at91/Kconfig" 82395b8f20fSRussell King 82495b8f20fSRussell Kingsource "arch/arm/mach-bcmring/Kconfig" 82595b8f20fSRussell King 8261da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig" 8271da177e4SLinus Torvalds 82895b8f20fSRussell Kingsource "arch/arm/mach-davinci/Kconfig" 82995b8f20fSRussell King 83095b8f20fSRussell Kingsource "arch/arm/mach-dove/Kconfig" 83195b8f20fSRussell King 832e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig" 833e7736d47SLennert Buytenhek 8341da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig" 8351da177e4SLinus Torvalds 83659d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig" 83759d3a193SPaulius Zaleckas 83895b8f20fSRussell Kingsource "arch/arm/mach-h720x/Kconfig" 83995b8f20fSRussell King 8401da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig" 8411da177e4SLinus Torvalds 8423f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig" 8433f7e5815SLennert Buytenhek 8443f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig" 8451da177e4SLinus Torvalds 846285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig" 847285f5fa7SDan Williams 8481da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig" 8491da177e4SLinus Torvalds 8501da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig" 8511da177e4SLinus Torvalds 852c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig" 853c4713074SLennert Buytenhek 85495b8f20fSRussell Kingsource "arch/arm/mach-kirkwood/Kconfig" 85595b8f20fSRussell King 85695b8f20fSRussell Kingsource "arch/arm/mach-ks8695/Kconfig" 85795b8f20fSRussell King 85895b8f20fSRussell Kingsource "arch/arm/mach-lh7a40x/Kconfig" 85995b8f20fSRussell King 860777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig" 861777f9bebSLennert Buytenhek 86295b8f20fSRussell Kingsource "arch/arm/mach-msm/Kconfig" 86395b8f20fSRussell King 864794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig" 865794d15b2SStanislav Samsonov 86695b8f20fSRussell Kingsource "arch/arm/plat-mxc/Kconfig" 8671da177e4SLinus Torvalds 86895b8f20fSRussell Kingsource "arch/arm/mach-netx/Kconfig" 86949cbe786SEric Miao 87095b8f20fSRussell Kingsource "arch/arm/mach-nomadik/Kconfig" 87195b8f20fSRussell Kingsource "arch/arm/plat-nomadik/Kconfig" 87295b8f20fSRussell King 87395b8f20fSRussell Kingsource "arch/arm/mach-ns9xxx/Kconfig" 8741da177e4SLinus Torvalds 875d91a8910SRussell Kingsource "arch/arm/mach-nuc93x/Kconfig" 876d91a8910SRussell King 877d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig" 878d48af15eSTony Lindgren 879d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig" 8801da177e4SLinus Torvalds 8811dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig" 8821dbae815STony Lindgren 8839dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig" 884585cf175STzachi Perelstein 88595b8f20fSRussell Kingsource "arch/arm/mach-pxa/Kconfig" 88695b8f20fSRussell Kingsource "arch/arm/plat-pxa/Kconfig" 8871da177e4SLinus Torvalds 88895b8f20fSRussell Kingsource "arch/arm/mach-mmp/Kconfig" 88995b8f20fSRussell King 89095b8f20fSRussell Kingsource "arch/arm/mach-realview/Kconfig" 89195b8f20fSRussell King 89295b8f20fSRussell Kingsource "arch/arm/mach-sa1100/Kconfig" 893edabd38eSSaeed Bishara 894cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig" 895a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig" 896c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig" 897a21765a7SBen Dooks 898a21765a7SBen Dooksif ARCH_S3C2410 899a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig" 9001da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig" 901a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig" 902f1290a49SYauhen Kharuzhysource "arch/arm/mach-s3c2416/Kconfig" 903a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig" 904e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig" 905a21765a7SBen Dooksendif 9061da177e4SLinus Torvalds 907a08ab637SBen Dooksif ARCH_S3C64XX 908431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig" 909a08ab637SBen Dooksendif 910a08ab637SBen Dooks 911c4ffccddSKukjin Kimsource "arch/arm/mach-s5p6440/Kconfig" 912c4ffccddSKukjin Kim 913550db7f1SKukjin Kimsource "arch/arm/mach-s5p6442/Kconfig" 9147bd0f2f5Sdmitry pervushin 9155a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig" 9165a7652f2SByungho Min 917170f4e42SKukjin Kimsource "arch/arm/mach-s5pv210/Kconfig" 918170f4e42SKukjin Kim 919882d01f9SRussell Kingsource "arch/arm/mach-shmobile/Kconfig" 9201da177e4SLinus Torvalds 921882d01f9SRussell Kingsource "arch/arm/plat-stmp3xxx/Kconfig" 9229e73c84cSBrian Swetland 92395b8f20fSRussell Kingsource "arch/arm/mach-u300/Kconfig" 92452c543f9SQuinn Jensen 92595b8f20fSRussell Kingsource "arch/arm/mach-ux500/Kconfig" 9261da177e4SLinus Torvalds 9271da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig" 9281da177e4SLinus Torvalds 9297ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig" 9307ec80ddfSwanzongshun 9311da177e4SLinus Torvalds# Definitions to make life easier 9321da177e4SLinus Torvaldsconfig ARCH_ACORN 9331da177e4SLinus Torvalds bool 9341da177e4SLinus Torvalds 9357ae1f7ecSLennert Buytenhekconfig PLAT_IOP 9367ae1f7ecSLennert Buytenhek bool 937469d3044SMikael Pettersson select GENERIC_CLOCKEVENTS 938980f2296SMikael Pettersson select GENERIC_TIME 9397ae1f7ecSLennert Buytenhek 94069b02f6aSLennert Buytenhekconfig PLAT_ORION 94169b02f6aSLennert Buytenhek bool 94269b02f6aSLennert Buytenhek 943bd5ce433SEric Miaoconfig PLAT_PXA 944bd5ce433SEric Miao bool 945bd5ce433SEric Miao 9461da177e4SLinus Torvaldssource arch/arm/mm/Kconfig 9471da177e4SLinus Torvalds 948afe4b25eSLennert Buytenhekconfig IWMMXT 949afe4b25eSLennert Buytenhek bool "Enable iWMMXt support" 95040305a58SEric Miao depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK 95140305a58SEric Miao default y if PXA27x || PXA3xx || ARCH_MMP 952afe4b25eSLennert Buytenhek help 953afe4b25eSLennert Buytenhek Enable support for iWMMXt context switching at run time if 954afe4b25eSLennert Buytenhek running on a CPU that supports it. 955afe4b25eSLennert Buytenhek 9561da177e4SLinus Torvalds# bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER 9571da177e4SLinus Torvaldsconfig XSCALE_PMU 9581da177e4SLinus Torvalds bool 9591da177e4SLinus Torvalds depends on CPU_XSCALE && !XSCALE_PMU_TIMER 9601da177e4SLinus Torvalds default y 9611da177e4SLinus Torvalds 9620f4f0672SJamie Ilesconfig CPU_HAS_PMU 9630f4f0672SJamie Iles depends on CPU_V6 || CPU_V7 || XSCALE_PMU 9640f4f0672SJamie Iles default y 9650f4f0672SJamie Iles bool 9660f4f0672SJamie Iles 9673b93e7b0SHyok S. Choiif !MMU 9683b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu" 9693b93e7b0SHyok S. Choiendif 9703b93e7b0SHyok S. Choi 9719cba3cccSCatalin Marinasconfig ARM_ERRATA_411920 9729cba3cccSCatalin Marinas bool "ARM errata: Invalidation of the Instruction Cache operation can fail" 9739cba3cccSCatalin Marinas depends on CPU_V6 && !SMP 9749cba3cccSCatalin Marinas help 9759cba3cccSCatalin Marinas Invalidation of the Instruction Cache operation can 9769cba3cccSCatalin Marinas fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. 9779cba3cccSCatalin Marinas It does not affect the MPCore. This option enables the ARM Ltd. 9789cba3cccSCatalin Marinas recommended workaround. 9799cba3cccSCatalin Marinas 9807ce236fcSCatalin Marinasconfig ARM_ERRATA_430973 9817ce236fcSCatalin Marinas bool "ARM errata: Stale prediction on replaced interworking branch" 9827ce236fcSCatalin Marinas depends on CPU_V7 9837ce236fcSCatalin Marinas help 9847ce236fcSCatalin Marinas This option enables the workaround for the 430973 Cortex-A8 9857ce236fcSCatalin Marinas (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb 9867ce236fcSCatalin Marinas interworking branch is replaced with another code sequence at the 9877ce236fcSCatalin Marinas same virtual address, whether due to self-modifying code or virtual 9887ce236fcSCatalin Marinas to physical address re-mapping, Cortex-A8 does not recover from the 9897ce236fcSCatalin Marinas stale interworking branch prediction. This results in Cortex-A8 9907ce236fcSCatalin Marinas executing the new code sequence in the incorrect ARM or Thumb state. 9917ce236fcSCatalin Marinas The workaround enables the BTB/BTAC operations by setting ACTLR.IBE 9927ce236fcSCatalin Marinas and also flushes the branch target cache at every context switch. 9937ce236fcSCatalin Marinas Note that setting specific bits in the ACTLR register may not be 9947ce236fcSCatalin Marinas available in non-secure mode. 9957ce236fcSCatalin Marinas 996855c551fSCatalin Marinasconfig ARM_ERRATA_458693 997855c551fSCatalin Marinas bool "ARM errata: Processor deadlock when a false hazard is created" 998855c551fSCatalin Marinas depends on CPU_V7 999855c551fSCatalin Marinas help 1000855c551fSCatalin Marinas This option enables the workaround for the 458693 Cortex-A8 (r2p0) 1001855c551fSCatalin Marinas erratum. For very specific sequences of memory operations, it is 1002855c551fSCatalin Marinas possible for a hazard condition intended for a cache line to instead 1003855c551fSCatalin Marinas be incorrectly associated with a different cache line. This false 1004855c551fSCatalin Marinas hazard might then cause a processor deadlock. The workaround enables 1005855c551fSCatalin Marinas the L1 caching of the NEON accesses and disables the PLD instruction 1006855c551fSCatalin Marinas in the ACTLR register. Note that setting specific bits in the ACTLR 1007855c551fSCatalin Marinas register may not be available in non-secure mode. 1008855c551fSCatalin Marinas 10090516e464SCatalin Marinasconfig ARM_ERRATA_460075 10100516e464SCatalin Marinas bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" 10110516e464SCatalin Marinas depends on CPU_V7 10120516e464SCatalin Marinas help 10130516e464SCatalin Marinas This option enables the workaround for the 460075 Cortex-A8 (r2p0) 10140516e464SCatalin Marinas erratum. Any asynchronous access to the L2 cache may encounter a 10150516e464SCatalin Marinas situation in which recent store transactions to the L2 cache are lost 10160516e464SCatalin Marinas and overwritten with stale memory contents from external memory. The 10170516e464SCatalin Marinas workaround disables the write-allocate mode for the L2 cache via the 10180516e464SCatalin Marinas ACTLR register. Note that setting specific bits in the ACTLR register 10190516e464SCatalin Marinas may not be available in non-secure mode. 10200516e464SCatalin Marinas 10219e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369 10229e65582aSSantosh Shilimkar bool "Clean & Invalidate maintenance operations do not invalidate clean lines" 10239e65582aSSantosh Shilimkar depends on CACHE_L2X0 && ARCH_OMAP4 10249e65582aSSantosh Shilimkar help 10259e65582aSSantosh Shilimkar The PL310 L2 cache controller implements three types of Clean & 10269e65582aSSantosh Shilimkar Invalidate maintenance operations: by Physical Address 10279e65582aSSantosh Shilimkar (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC). 10289e65582aSSantosh Shilimkar They are architecturally defined to behave as the execution of a 10299e65582aSSantosh Shilimkar clean operation followed immediately by an invalidate operation, 10309e65582aSSantosh Shilimkar both performing to the same memory location. This functionality 10319e65582aSSantosh Shilimkar is not correctly implemented in PL310 as clean lines are not 10329e65582aSSantosh Shilimkar invalidated as a result of these operations. Note that this errata 10339e65582aSSantosh Shilimkar uses Texas Instrument's secure monitor api. 10341da177e4SLinus Torvaldsendmenu 10351da177e4SLinus Torvalds 10361da177e4SLinus Torvaldssource "arch/arm/common/Kconfig" 10371da177e4SLinus Torvalds 10381da177e4SLinus Torvaldsconfig FORCE_MAX_ZONEORDER 10391da177e4SLinus Torvalds int 10401da177e4SLinus Torvalds depends on SA1111 10411da177e4SLinus Torvalds default "9" 10421da177e4SLinus Torvalds 10431da177e4SLinus Torvaldsmenu "Bus support" 10441da177e4SLinus Torvalds 10451da177e4SLinus Torvaldsconfig ARM_AMBA 10461da177e4SLinus Torvalds bool 10471da177e4SLinus Torvalds 10481da177e4SLinus Torvaldsconfig ISA 10491da177e4SLinus Torvalds bool 10501da177e4SLinus Torvalds help 10511da177e4SLinus Torvalds Find out whether you have ISA slots on your motherboard. ISA is the 10521da177e4SLinus Torvalds name of a bus system, i.e. the way the CPU talks to the other stuff 10531da177e4SLinus Torvalds inside your box. Other bus systems are PCI, EISA, MicroChannel 10541da177e4SLinus Torvalds (MCA) or VESA. ISA is an older system, now being displaced by PCI; 10551da177e4SLinus Torvalds newer boards don't support it. If you have ISA, say Y, otherwise N. 10561da177e4SLinus Torvalds 1057065909b9SRussell King# Select ISA DMA controller support 10581da177e4SLinus Torvaldsconfig ISA_DMA 10591da177e4SLinus Torvalds bool 1060065909b9SRussell King select ISA_DMA_API 10611da177e4SLinus Torvalds 1062065909b9SRussell King# Select ISA DMA interface 10635cae841bSAl Viroconfig ISA_DMA_API 10645cae841bSAl Viro bool 10655cae841bSAl Viro 10661da177e4SLinus Torvaldsconfig PCI 1067a0113a99SMike Rapoport bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE 10681da177e4SLinus Torvalds help 10691da177e4SLinus Torvalds Find out whether you have a PCI motherboard. PCI is the name of a 10701da177e4SLinus Torvalds bus system, i.e. the way the CPU talks to the other stuff inside 10711da177e4SLinus Torvalds your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or 10721da177e4SLinus Torvalds VESA. If you have PCI, say Y, otherwise N. 10731da177e4SLinus Torvalds 107436e23590SMatthew Wilcoxconfig PCI_SYSCALL 107536e23590SMatthew Wilcox def_bool PCI 107636e23590SMatthew Wilcox 10771da177e4SLinus Torvalds# Select the host bridge type 10781da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505 10791da177e4SLinus Torvalds bool 10801da177e4SLinus Torvalds depends on PCI && ARCH_SHARK 10811da177e4SLinus Torvalds default y 10821da177e4SLinus Torvalds 1083a0113a99SMike Rapoportconfig PCI_HOST_ITE8152 1084a0113a99SMike Rapoport bool 1085a0113a99SMike Rapoport depends on PCI && MACH_ARMCORE 1086a0113a99SMike Rapoport default y 1087a0113a99SMike Rapoport select DMABOUNCE 1088a0113a99SMike Rapoport 10891da177e4SLinus Torvaldssource "drivers/pci/Kconfig" 10901da177e4SLinus Torvalds 10911da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig" 10921da177e4SLinus Torvalds 10931da177e4SLinus Torvaldsendmenu 10941da177e4SLinus Torvalds 10951da177e4SLinus Torvaldsmenu "Kernel Features" 10961da177e4SLinus Torvalds 10970567a0c0SKevin Hilmansource "kernel/time/Kconfig" 10980567a0c0SKevin Hilman 10991da177e4SLinus Torvaldsconfig SMP 11001da177e4SLinus Torvalds bool "Symmetric Multi-Processing (EXPERIMENTAL)" 110142578c82SRussell King depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\ 1102850265e8SSrinidhi Kasagar MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) 1103bc28248eSRussell King depends on GENERIC_CLOCKEVENTS 1104f6dd9fa5SJens Axboe select USE_GENERIC_SMP_HELPERS 1105850265e8SSrinidhi Kasagar select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) 11061da177e4SLinus Torvalds help 11071da177e4SLinus Torvalds This enables support for systems with more than one CPU. If you have 11081da177e4SLinus Torvalds a system with only one CPU, like most personal computers, say N. If 11091da177e4SLinus Torvalds you have a system with more than one CPU, say Y. 11101da177e4SLinus Torvalds 11111da177e4SLinus Torvalds If you say N here, the kernel will run on single and multiprocessor 11121da177e4SLinus Torvalds machines, but will use only one CPU of a multiprocessor machine. If 11131da177e4SLinus Torvalds you say Y here, the kernel will run on many, but not all, single 11141da177e4SLinus Torvalds processor machines. On a single processor machine, the kernel will 11151da177e4SLinus Torvalds run faster if you say N here. 11161da177e4SLinus Torvalds 111703502faaSAdrian Bunk See also <file:Documentation/i386/IO-APIC.txt>, 11181da177e4SLinus Torvalds <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at 11191da177e4SLinus Torvalds <http://www.linuxdoc.org/docs.html#howto>. 11201da177e4SLinus Torvalds 11211da177e4SLinus Torvalds If you don't know what to do here, say N. 11221da177e4SLinus Torvalds 1123a8cbcd92SRussell Kingconfig HAVE_ARM_SCU 1124a8cbcd92SRussell King bool 1125a8cbcd92SRussell King depends on SMP 1126a8cbcd92SRussell King help 1127a8cbcd92SRussell King This option enables support for the ARM system coherency unit 1128a8cbcd92SRussell King 1129f32f4ce2SRussell Kingconfig HAVE_ARM_TWD 1130f32f4ce2SRussell King bool 1131f32f4ce2SRussell King depends on SMP 1132f32f4ce2SRussell King help 1133f32f4ce2SRussell King This options enables support for the ARM timer and watchdog unit 1134f32f4ce2SRussell King 11358d5796d2SLennert Buytenhekchoice 11368d5796d2SLennert Buytenhek prompt "Memory split" 11378d5796d2SLennert Buytenhek default VMSPLIT_3G 11388d5796d2SLennert Buytenhek help 11398d5796d2SLennert Buytenhek Select the desired split between kernel and user memory. 11408d5796d2SLennert Buytenhek 11418d5796d2SLennert Buytenhek If you are not absolutely sure what you are doing, leave this 11428d5796d2SLennert Buytenhek option alone! 11438d5796d2SLennert Buytenhek 11448d5796d2SLennert Buytenhek config VMSPLIT_3G 11458d5796d2SLennert Buytenhek bool "3G/1G user/kernel split" 11468d5796d2SLennert Buytenhek config VMSPLIT_2G 11478d5796d2SLennert Buytenhek bool "2G/2G user/kernel split" 11488d5796d2SLennert Buytenhek config VMSPLIT_1G 11498d5796d2SLennert Buytenhek bool "1G/3G user/kernel split" 11508d5796d2SLennert Buytenhekendchoice 11518d5796d2SLennert Buytenhek 11528d5796d2SLennert Buytenhekconfig PAGE_OFFSET 11538d5796d2SLennert Buytenhek hex 11548d5796d2SLennert Buytenhek default 0x40000000 if VMSPLIT_1G 11558d5796d2SLennert Buytenhek default 0x80000000 if VMSPLIT_2G 11568d5796d2SLennert Buytenhek default 0xC0000000 11578d5796d2SLennert Buytenhek 11581da177e4SLinus Torvaldsconfig NR_CPUS 11591da177e4SLinus Torvalds int "Maximum number of CPUs (2-32)" 11601da177e4SLinus Torvalds range 2 32 11611da177e4SLinus Torvalds depends on SMP 11621da177e4SLinus Torvalds default "4" 11631da177e4SLinus Torvalds 1164a054a811SRussell Kingconfig HOTPLUG_CPU 1165a054a811SRussell King bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 1166a054a811SRussell King depends on SMP && HOTPLUG && EXPERIMENTAL 1167a054a811SRussell King help 1168a054a811SRussell King Say Y here to experiment with turning CPUs off and on. CPUs 1169a054a811SRussell King can be controlled through /sys/devices/system/cpu. 1170a054a811SRussell King 117137ee16aeSRussell Kingconfig LOCAL_TIMERS 117237ee16aeSRussell King bool "Use local timer interrupts" 117342578c82SRussell King depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \ 1174850265e8SSrinidhi Kasagar REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500) 117537ee16aeSRussell King default y 1176850265e8SSrinidhi Kasagar select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500) 117737ee16aeSRussell King help 117837ee16aeSRussell King Enable support for local timers on SMP platforms, rather then the 117937ee16aeSRussell King legacy IPI broadcast method. Local timers allows the system 118037ee16aeSRussell King accounting to be spread across the timer interval, preventing a 118137ee16aeSRussell King "thundering herd" at every timer tick. 118237ee16aeSRussell King 1183d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt 11841da177e4SLinus Torvalds 1185f8065813SRussell Kingconfig HZ 1186f8065813SRussell King int 1187f8065813SRussell King default 128 if ARCH_L7200 1188170f4e42SKukjin Kim default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210 1189bfe65704SRussell King default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER 11905248c657SDavid Brownell default AT91_TIMER_HZ if ARCH_AT91 1191f8065813SRussell King default 100 1192f8065813SRussell King 119316c79651SCatalin Marinasconfig THUMB2_KERNEL 119416c79651SCatalin Marinas bool "Compile the kernel in Thumb-2 mode" 119516c79651SCatalin Marinas depends on CPU_V7 && EXPERIMENTAL 119616c79651SCatalin Marinas select AEABI 119716c79651SCatalin Marinas select ARM_ASM_UNIFIED 119816c79651SCatalin Marinas help 119916c79651SCatalin Marinas By enabling this option, the kernel will be compiled in 120016c79651SCatalin Marinas Thumb-2 mode. A compiler/assembler that understand the unified 120116c79651SCatalin Marinas ARM-Thumb syntax is needed. 120216c79651SCatalin Marinas 120316c79651SCatalin Marinas If unsure, say N. 120416c79651SCatalin Marinas 12050becb088SCatalin Marinasconfig ARM_ASM_UNIFIED 12060becb088SCatalin Marinas bool 12070becb088SCatalin Marinas 1208704bdda0SNicolas Pitreconfig AEABI 1209704bdda0SNicolas Pitre bool "Use the ARM EABI to compile the kernel" 1210704bdda0SNicolas Pitre help 1211704bdda0SNicolas Pitre This option allows for the kernel to be compiled using the latest 1212704bdda0SNicolas Pitre ARM ABI (aka EABI). This is only useful if you are using a user 1213704bdda0SNicolas Pitre space environment that is also compiled with EABI. 1214704bdda0SNicolas Pitre 1215704bdda0SNicolas Pitre Since there are major incompatibilities between the legacy ABI and 1216704bdda0SNicolas Pitre EABI, especially with regard to structure member alignment, this 1217704bdda0SNicolas Pitre option also changes the kernel syscall calling convention to 1218704bdda0SNicolas Pitre disambiguate both ABIs and allow for backward compatibility support 1219704bdda0SNicolas Pitre (selected with CONFIG_OABI_COMPAT). 1220704bdda0SNicolas Pitre 1221704bdda0SNicolas Pitre To use this you need GCC version 4.0.0 or later. 1222704bdda0SNicolas Pitre 12236c90c872SNicolas Pitreconfig OABI_COMPAT 1224a73a3ff1SRussell King bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" 122561c484d4SNicolas Pitre depends on AEABI && EXPERIMENTAL 12266c90c872SNicolas Pitre default y 12276c90c872SNicolas Pitre help 12286c90c872SNicolas Pitre This option preserves the old syscall interface along with the 12296c90c872SNicolas Pitre new (ARM EABI) one. It also provides a compatibility layer to 12306c90c872SNicolas Pitre intercept syscalls that have structure arguments which layout 12316c90c872SNicolas Pitre in memory differs between the legacy ABI and the new ARM EABI 12326c90c872SNicolas Pitre (only for non "thumb" binaries). This option adds a tiny 12336c90c872SNicolas Pitre overhead to all syscalls and produces a slightly larger kernel. 12346c90c872SNicolas Pitre If you know you'll be using only pure EABI user space then you 12356c90c872SNicolas Pitre can say N here. If this option is not selected and you attempt 12366c90c872SNicolas Pitre to execute a legacy ABI binary then the result will be 12376c90c872SNicolas Pitre UNPREDICTABLE (in fact it can be predicted that it won't work 12386c90c872SNicolas Pitre at all). If in doubt say Y. 12396c90c872SNicolas Pitre 1240eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL 1241e80d6a24SMel Gorman bool 1242e80d6a24SMel Gorman 124307a2f737SRussell King# Discontigmem is deprecated 12443f22ab27SDave Hansenconfig ARCH_DISCONTIGMEM_ENABLE 12451da177e4SLinus Torvalds bool 12461da177e4SLinus Torvalds 124705944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE 124805944d74SRussell King bool 124905944d74SRussell King 125007a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT 125107a2f737SRussell King def_bool ARCH_SPARSEMEM_ENABLE 125207a2f737SRussell King 125305944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL 125407a2f737SRussell King def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE 125505944d74SRussell King 1256c80d79d7SYasunori Gotoconfig NODES_SHIFT 1257c80d79d7SYasunori Goto int 1258c80d79d7SYasunori Goto default "4" if ARCH_LH7A40X 1259c80d79d7SYasunori Goto default "2" 1260c80d79d7SYasunori Goto depends on NEED_MULTIPLE_NODES 1261c80d79d7SYasunori Goto 1262053a96caSNicolas Pitreconfig HIGHMEM 1263053a96caSNicolas Pitre bool "High Memory Support (EXPERIMENTAL)" 1264053a96caSNicolas Pitre depends on MMU && EXPERIMENTAL 1265053a96caSNicolas Pitre help 1266053a96caSNicolas Pitre The address space of ARM processors is only 4 Gigabytes large 1267053a96caSNicolas Pitre and it has to accommodate user address space, kernel address 1268053a96caSNicolas Pitre space as well as some memory mapped IO. That means that, if you 1269053a96caSNicolas Pitre have a large amount of physical memory and/or IO, not all of the 1270053a96caSNicolas Pitre memory can be "permanently mapped" by the kernel. The physical 1271053a96caSNicolas Pitre memory that is not permanently mapped is called "high memory". 1272053a96caSNicolas Pitre 1273053a96caSNicolas Pitre Depending on the selected kernel/user memory split, minimum 1274053a96caSNicolas Pitre vmalloc space and actual amount of RAM, you may not need this 1275053a96caSNicolas Pitre option which should result in a slightly faster kernel. 1276053a96caSNicolas Pitre 1277053a96caSNicolas Pitre If unsure, say n. 1278053a96caSNicolas Pitre 127965cec8e3SRussell Kingconfig HIGHPTE 128065cec8e3SRussell King bool "Allocate 2nd-level pagetables from highmem" 128165cec8e3SRussell King depends on HIGHMEM 128265cec8e3SRussell King depends on !OUTER_CACHE 128365cec8e3SRussell King 12841b8873a0SJamie Ilesconfig HW_PERF_EVENTS 12851b8873a0SJamie Iles bool "Enable hardware performance counter support for perf events" 1286796d1295SJean PIHET depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7) 12871b8873a0SJamie Iles default y 12881b8873a0SJamie Iles help 12891b8873a0SJamie Iles Enable hardware performance counter support for perf events. If 12901b8873a0SJamie Iles disabled, perf events will use software events only. 12911b8873a0SJamie Iles 12923f22ab27SDave Hansensource "mm/Kconfig" 12933f22ab27SDave Hansen 12941da177e4SLinus Torvaldsconfig LEDS 12951da177e4SLinus Torvalds bool "Timer and CPU usage LEDs" 1296e055d5bfSAdrian Bunk depends on ARCH_CDB89712 || ARCH_EBSA110 || \ 12978c8fdbc9SSascha Hauer ARCH_EBSA285 || ARCH_INTEGRATOR || \ 12981da177e4SLinus Torvalds ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \ 12991da177e4SLinus Torvalds ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \ 130073a59c1cSSAN People ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \ 130125329671SJürgen Schindele ARCH_AT91 || ARCH_DAVINCI || \ 1302ff3042fbSColin Tuckley ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW 13031da177e4SLinus Torvalds help 13041da177e4SLinus Torvalds If you say Y here, the LEDs on your machine will be used 13051da177e4SLinus Torvalds to provide useful information about your current system status. 13061da177e4SLinus Torvalds 13071da177e4SLinus Torvalds If you are compiling a kernel for a NetWinder or EBSA-285, you will 13081da177e4SLinus Torvalds be able to select which LEDs are active using the options below. If 13091da177e4SLinus Torvalds you are compiling a kernel for the EBSA-110 or the LART however, the 13101da177e4SLinus Torvalds red LED will simply flash regularly to indicate that the system is 13111da177e4SLinus Torvalds still functional. It is safe to say Y here if you have a CATS 13121da177e4SLinus Torvalds system, but the driver will do nothing. 13131da177e4SLinus Torvalds 13141da177e4SLinus Torvaldsconfig LEDS_TIMER 13151da177e4SLinus Torvalds bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \ 1316eebdf7d7SDavid Brownell OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ 1317eebdf7d7SDavid Brownell || MACH_OMAP_PERSEUS2 13181da177e4SLinus Torvalds depends on LEDS 13190567a0c0SKevin Hilman depends on !GENERIC_CLOCKEVENTS 13201da177e4SLinus Torvalds default y if ARCH_EBSA110 13211da177e4SLinus Torvalds help 13221da177e4SLinus Torvalds If you say Y here, one of the system LEDs (the green one on the 13231da177e4SLinus Torvalds NetWinder, the amber one on the EBSA285, or the red one on the LART) 13241da177e4SLinus Torvalds will flash regularly to indicate that the system is still 13251da177e4SLinus Torvalds operational. This is mainly useful to kernel hackers who are 13261da177e4SLinus Torvalds debugging unstable kernels. 13271da177e4SLinus Torvalds 13281da177e4SLinus Torvalds The LART uses the same LED for both Timer LED and CPU usage LED 13291da177e4SLinus Torvalds functions. You may choose to use both, but the Timer LED function 13301da177e4SLinus Torvalds will overrule the CPU usage LED. 13311da177e4SLinus Torvalds 13321da177e4SLinus Torvaldsconfig LEDS_CPU 13331da177e4SLinus Torvalds bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \ 1334eebdf7d7SDavid Brownell !ARCH_OMAP) \ 1335eebdf7d7SDavid Brownell || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \ 1336eebdf7d7SDavid Brownell || MACH_OMAP_PERSEUS2 13371da177e4SLinus Torvalds depends on LEDS 13381da177e4SLinus Torvalds help 13391da177e4SLinus Torvalds If you say Y here, the red LED will be used to give a good real 13401da177e4SLinus Torvalds time indication of CPU usage, by lighting whenever the idle task 13411da177e4SLinus Torvalds is not currently executing. 13421da177e4SLinus Torvalds 13431da177e4SLinus Torvalds The LART uses the same LED for both Timer LED and CPU usage LED 13441da177e4SLinus Torvalds functions. You may choose to use both, but the Timer LED function 13451da177e4SLinus Torvalds will overrule the CPU usage LED. 13461da177e4SLinus Torvalds 13471da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP 13481da177e4SLinus Torvalds bool 1349f12d0d7cSHyok S. Choi depends on CPU_CP15_MMU 13501da177e4SLinus Torvalds default y if !ARCH_EBSA110 1351e119bfffSRussell King select HAVE_PROC_CPU if PROC_FS 13521da177e4SLinus Torvalds help 13531da177e4SLinus Torvalds ARM processors cannot fetch/store information which is not 13541da177e4SLinus Torvalds naturally aligned on the bus, i.e., a 4 byte fetch must start at an 13551da177e4SLinus Torvalds address divisible by 4. On 32-bit ARM processors, these non-aligned 13561da177e4SLinus Torvalds fetch/store instructions will be emulated in software if you say 13571da177e4SLinus Torvalds here, which has a severe performance impact. This is necessary for 13581da177e4SLinus Torvalds correct operation of some network protocols. With an IP-only 13591da177e4SLinus Torvalds configuration it is safe to say N, otherwise say Y. 13601da177e4SLinus Torvalds 136139ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY 136239ec58f3SLennert Buytenhek bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)" 136339ec58f3SLennert Buytenhek depends on MMU && EXPERIMENTAL 136439ec58f3SLennert Buytenhek default y if CPU_FEROCEON 136539ec58f3SLennert Buytenhek help 136639ec58f3SLennert Buytenhek Implement faster copy_to_user and clear_user methods for CPU 136739ec58f3SLennert Buytenhek cores where a 8-word STM instruction give significantly higher 136839ec58f3SLennert Buytenhek memory write throughput than a sequence of individual 32bit stores. 136939ec58f3SLennert Buytenhek 137039ec58f3SLennert Buytenhek A possible side effect is a slight increase in scheduling latency 137139ec58f3SLennert Buytenhek between threads sharing the same address space if they invoke 137239ec58f3SLennert Buytenhek such copy operations with large buffers. 137339ec58f3SLennert Buytenhek 137439ec58f3SLennert Buytenhek However, if the CPU data cache is using a write-allocate mode, 137539ec58f3SLennert Buytenhek this option is unlikely to provide any performance gain. 137639ec58f3SLennert Buytenhek 13771da177e4SLinus Torvaldsendmenu 13781da177e4SLinus Torvalds 13791da177e4SLinus Torvaldsmenu "Boot options" 13801da177e4SLinus Torvalds 13811da177e4SLinus Torvalds# Compressed boot loader in ROM. Yes, we really want to ask about 13821da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files. 13831da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT 13841da177e4SLinus Torvalds hex "Compressed ROM boot loader base address" 13851da177e4SLinus Torvalds default "0" 13861da177e4SLinus Torvalds help 13871da177e4SLinus Torvalds The physical address at which the ROM-able zImage is to be 13881da177e4SLinus Torvalds placed in the target. Platforms which normally make use of 13891da177e4SLinus Torvalds ROM-able zImage formats normally set this to a suitable 13901da177e4SLinus Torvalds value in their defconfig file. 13911da177e4SLinus Torvalds 13921da177e4SLinus Torvalds If ZBOOT_ROM is not enabled, this has no effect. 13931da177e4SLinus Torvalds 13941da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS 13951da177e4SLinus Torvalds hex "Compressed ROM boot loader BSS address" 13961da177e4SLinus Torvalds default "0" 13971da177e4SLinus Torvalds help 1398f8c440b2SDan Fandrich The base address of an area of read/write memory in the target 1399f8c440b2SDan Fandrich for the ROM-able zImage which must be available while the 1400f8c440b2SDan Fandrich decompressor is running. It must be large enough to hold the 1401f8c440b2SDan Fandrich entire decompressed kernel plus an additional 128 KiB. 1402f8c440b2SDan Fandrich Platforms which normally make use of ROM-able zImage formats 1403f8c440b2SDan Fandrich normally set this to a suitable value in their defconfig file. 14041da177e4SLinus Torvalds 14051da177e4SLinus Torvalds If ZBOOT_ROM is not enabled, this has no effect. 14061da177e4SLinus Torvalds 14071da177e4SLinus Torvaldsconfig ZBOOT_ROM 14081da177e4SLinus Torvalds bool "Compressed boot loader in ROM/flash" 14091da177e4SLinus Torvalds depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS 14101da177e4SLinus Torvalds help 14111da177e4SLinus Torvalds Say Y here if you intend to execute your compressed kernel image 14121da177e4SLinus Torvalds (zImage) directly from ROM or flash. If unsure, say N. 14131da177e4SLinus Torvalds 14141da177e4SLinus Torvaldsconfig CMDLINE 14151da177e4SLinus Torvalds string "Default kernel command string" 14161da177e4SLinus Torvalds default "" 14171da177e4SLinus Torvalds help 14181da177e4SLinus Torvalds On some architectures (EBSA110 and CATS), there is currently no way 14191da177e4SLinus Torvalds for the boot loader to pass arguments to the kernel. For these 14201da177e4SLinus Torvalds architectures, you should supply some command-line options at build 14211da177e4SLinus Torvalds time by entering them here. As a minimum, you should specify the 14221da177e4SLinus Torvalds memory size and the root device (e.g., mem=64M root=/dev/nfs). 14231da177e4SLinus Torvalds 14241da177e4SLinus Torvaldsconfig XIP_KERNEL 14251da177e4SLinus Torvalds bool "Kernel Execute-In-Place from ROM" 14261da177e4SLinus Torvalds depends on !ZBOOT_ROM 14271da177e4SLinus Torvalds help 14281da177e4SLinus Torvalds Execute-In-Place allows the kernel to run from non-volatile storage 14291da177e4SLinus Torvalds directly addressable by the CPU, such as NOR flash. This saves RAM 14301da177e4SLinus Torvalds space since the text section of the kernel is not loaded from flash 14311da177e4SLinus Torvalds to RAM. Read-write sections, such as the data section and stack, 14321da177e4SLinus Torvalds are still copied to RAM. The XIP kernel is not compressed since 14331da177e4SLinus Torvalds it has to run directly from flash, so it will take more space to 14341da177e4SLinus Torvalds store it. The flash address used to link the kernel object files, 14351da177e4SLinus Torvalds and for storing it, is configuration dependent. Therefore, if you 14361da177e4SLinus Torvalds say Y here, you must know the proper physical address where to 14371da177e4SLinus Torvalds store the kernel image depending on your own flash memory usage. 14381da177e4SLinus Torvalds 14391da177e4SLinus Torvalds Also note that the make target becomes "make xipImage" rather than 14401da177e4SLinus Torvalds "make zImage" or "make Image". The final kernel binary to put in 14411da177e4SLinus Torvalds ROM memory will be arch/arm/boot/xipImage. 14421da177e4SLinus Torvalds 14431da177e4SLinus Torvalds If unsure, say N. 14441da177e4SLinus Torvalds 14451da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR 14461da177e4SLinus Torvalds hex "XIP Kernel Physical Location" 14471da177e4SLinus Torvalds depends on XIP_KERNEL 14481da177e4SLinus Torvalds default "0x00080000" 14491da177e4SLinus Torvalds help 14501da177e4SLinus Torvalds This is the physical address in your flash memory the kernel will 14511da177e4SLinus Torvalds be linked for and stored to. This address is dependent on your 14521da177e4SLinus Torvalds own flash usage. 14531da177e4SLinus Torvalds 1454c587e4a6SRichard Purdieconfig KEXEC 1455c587e4a6SRichard Purdie bool "Kexec system call (EXPERIMENTAL)" 1456c587e4a6SRichard Purdie depends on EXPERIMENTAL 1457c587e4a6SRichard Purdie help 1458c587e4a6SRichard Purdie kexec is a system call that implements the ability to shutdown your 1459c587e4a6SRichard Purdie current kernel, and to start another kernel. It is like a reboot 146001dd2fbfSMatt LaPlante but it is independent of the system firmware. And like a reboot 1461c587e4a6SRichard Purdie you can start any kernel with it, not just Linux. 1462c587e4a6SRichard Purdie 1463c587e4a6SRichard Purdie It is an ongoing process to be certain the hardware in a machine 1464c587e4a6SRichard Purdie is properly shutdown, so do not be surprised if this code does not 1465c587e4a6SRichard Purdie initially work for you. It may help to enable device hotplugging 1466c587e4a6SRichard Purdie support. 1467c587e4a6SRichard Purdie 14684cd9d6f7SRichard Purdieconfig ATAGS_PROC 14694cd9d6f7SRichard Purdie bool "Export atags in procfs" 1470b98d7291SUli Luckas depends on KEXEC 1471b98d7291SUli Luckas default y 14724cd9d6f7SRichard Purdie help 14734cd9d6f7SRichard Purdie Should the atags used to boot the kernel be exported in an "atags" 14744cd9d6f7SRichard Purdie file in procfs. Useful with kexec. 14754cd9d6f7SRichard Purdie 14761da177e4SLinus Torvaldsendmenu 14771da177e4SLinus Torvalds 1478ac9d7efcSRussell Kingmenu "CPU Power Management" 14791da177e4SLinus Torvalds 148089c52ed4SBen Dooksif ARCH_HAS_CPUFREQ 14811da177e4SLinus Torvalds 14821da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig" 14831da177e4SLinus Torvalds 14841da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100 14851da177e4SLinus Torvalds bool 14861da177e4SLinus Torvalds 14871da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110 14881da177e4SLinus Torvalds bool 14891da177e4SLinus Torvalds 14901da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR 14911da177e4SLinus Torvalds tristate "CPUfreq driver for ARM Integrator CPUs" 14921da177e4SLinus Torvalds depends on ARCH_INTEGRATOR && CPU_FREQ 14931da177e4SLinus Torvalds default y 14941da177e4SLinus Torvalds help 14951da177e4SLinus Torvalds This enables the CPUfreq driver for ARM Integrator CPUs. 14961da177e4SLinus Torvalds 14971da177e4SLinus Torvalds For details, take a look at <file:Documentation/cpu-freq>. 14981da177e4SLinus Torvalds 14991da177e4SLinus Torvalds If in doubt, say Y. 15001da177e4SLinus Torvalds 15019e2697ffSRussell Kingconfig CPU_FREQ_PXA 15029e2697ffSRussell King bool 15039e2697ffSRussell King depends on CPU_FREQ && ARCH_PXA && PXA25x 15049e2697ffSRussell King default y 15059e2697ffSRussell King select CPU_FREQ_DEFAULT_GOV_USERSPACE 15069e2697ffSRussell King 1507b3748dddSMark Brownconfig CPU_FREQ_S3C64XX 1508b3748dddSMark Brown bool "CPUfreq support for Samsung S3C64XX CPUs" 1509b3748dddSMark Brown depends on CPU_FREQ && CPU_S3C6410 1510b3748dddSMark Brown 15119d56c02aSBen Dooksconfig CPU_FREQ_S3C 15129d56c02aSBen Dooks bool 15139d56c02aSBen Dooks help 15149d56c02aSBen Dooks Internal configuration node for common cpufreq on Samsung SoC 15159d56c02aSBen Dooks 15169d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX 15179d56c02aSBen Dooks bool "CPUfreq driver for Samsung S3C24XX series CPUs" 15189d56c02aSBen Dooks depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL 15199d56c02aSBen Dooks select CPU_FREQ_S3C 15209d56c02aSBen Dooks help 15219d56c02aSBen Dooks This enables the CPUfreq driver for the Samsung S3C24XX family 15229d56c02aSBen Dooks of CPUs. 15239d56c02aSBen Dooks 15249d56c02aSBen Dooks For details, take a look at <file:Documentation/cpu-freq>. 15259d56c02aSBen Dooks 15269d56c02aSBen Dooks If in doubt, say N. 15279d56c02aSBen Dooks 15289d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL 15299d56c02aSBen Dooks bool "Support CPUfreq changing of PLL frequency" 15309d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX && EXPERIMENTAL 15319d56c02aSBen Dooks help 15329d56c02aSBen Dooks Compile in support for changing the PLL frequency from the 15339d56c02aSBen Dooks S3C24XX series CPUfreq driver. The PLL takes time to settle 15349d56c02aSBen Dooks after a frequency change, so by default it is not enabled. 15359d56c02aSBen Dooks 15369d56c02aSBen Dooks This also means that the PLL tables for the selected CPU(s) will 15379d56c02aSBen Dooks be built which may increase the size of the kernel image. 15389d56c02aSBen Dooks 15399d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG 15409d56c02aSBen Dooks bool "Debug CPUfreq Samsung driver core" 15419d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX 15429d56c02aSBen Dooks help 15439d56c02aSBen Dooks Enable s3c_freq_dbg for the Samsung S3C CPUfreq core 15449d56c02aSBen Dooks 15459d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG 15469d56c02aSBen Dooks bool "Debug CPUfreq Samsung driver IO timing" 15479d56c02aSBen Dooks depends on CPU_FREQ_S3C24XX 15489d56c02aSBen Dooks help 15499d56c02aSBen Dooks Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core 15509d56c02aSBen Dooks 1551e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS 1552e6d197a6SBen Dooks bool "Export debugfs for CPUFreq" 1553e6d197a6SBen Dooks depends on CPU_FREQ_S3C24XX && DEBUG_FS 1554e6d197a6SBen Dooks help 1555e6d197a6SBen Dooks Export status information via debugfs. 1556e6d197a6SBen Dooks 15571da177e4SLinus Torvaldsendif 15581da177e4SLinus Torvalds 1559ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig" 1560ac9d7efcSRussell King 1561ac9d7efcSRussell Kingendmenu 1562ac9d7efcSRussell King 15631da177e4SLinus Torvaldsmenu "Floating point emulation" 15641da177e4SLinus Torvalds 15651da177e4SLinus Torvaldscomment "At least one emulation must be selected" 15661da177e4SLinus Torvalds 15671da177e4SLinus Torvaldsconfig FPE_NWFPE 15681da177e4SLinus Torvalds bool "NWFPE math emulation" 15698993a44cSNicolas Pitre depends on !AEABI || OABI_COMPAT 15701da177e4SLinus Torvalds ---help--- 15711da177e4SLinus Torvalds Say Y to include the NWFPE floating point emulator in the kernel. 15721da177e4SLinus Torvalds This is necessary to run most binaries. Linux does not currently 15731da177e4SLinus Torvalds support floating point hardware so you need to say Y here even if 15741da177e4SLinus Torvalds your machine has an FPA or floating point co-processor podule. 15751da177e4SLinus Torvalds 15761da177e4SLinus Torvalds You may say N here if you are going to load the Acorn FPEmulator 15771da177e4SLinus Torvalds early in the bootup. 15781da177e4SLinus Torvalds 15791da177e4SLinus Torvaldsconfig FPE_NWFPE_XP 15801da177e4SLinus Torvalds bool "Support extended precision" 1581bedf142bSLennert Buytenhek depends on FPE_NWFPE 15821da177e4SLinus Torvalds help 15831da177e4SLinus Torvalds Say Y to include 80-bit support in the kernel floating-point 15841da177e4SLinus Torvalds emulator. Otherwise, only 32 and 64-bit support is compiled in. 15851da177e4SLinus Torvalds Note that gcc does not generate 80-bit operations by default, 15861da177e4SLinus Torvalds so in most cases this option only enlarges the size of the 15871da177e4SLinus Torvalds floating point emulator without any good reason. 15881da177e4SLinus Torvalds 15891da177e4SLinus Torvalds You almost surely want to say N here. 15901da177e4SLinus Torvalds 15911da177e4SLinus Torvaldsconfig FPE_FASTFPE 15921da177e4SLinus Torvalds bool "FastFPE math emulation (EXPERIMENTAL)" 15938993a44cSNicolas Pitre depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL 15941da177e4SLinus Torvalds ---help--- 15951da177e4SLinus Torvalds Say Y here to include the FAST floating point emulator in the kernel. 15961da177e4SLinus Torvalds This is an experimental much faster emulator which now also has full 15971da177e4SLinus Torvalds precision for the mantissa. It does not support any exceptions. 15981da177e4SLinus Torvalds It is very simple, and approximately 3-6 times faster than NWFPE. 15991da177e4SLinus Torvalds 16001da177e4SLinus Torvalds It should be sufficient for most programs. It may be not suitable 16011da177e4SLinus Torvalds for scientific calculations, but you have to check this for yourself. 16021da177e4SLinus Torvalds If you do not feel you need a faster FP emulation you should better 16031da177e4SLinus Torvalds choose NWFPE. 16041da177e4SLinus Torvalds 16051da177e4SLinus Torvaldsconfig VFP 16061da177e4SLinus Torvalds bool "VFP-format floating point maths" 1607c00d4ffdSRussell King depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON 16081da177e4SLinus Torvalds help 16091da177e4SLinus Torvalds Say Y to include VFP support code in the kernel. This is needed 16101da177e4SLinus Torvalds if your hardware includes a VFP unit. 16111da177e4SLinus Torvalds 16121da177e4SLinus Torvalds Please see <file:Documentation/arm/VFP/release-notes.txt> for 16131da177e4SLinus Torvalds release notes and additional status information. 16141da177e4SLinus Torvalds 16151da177e4SLinus Torvalds Say N if your target does not have VFP hardware. 16161da177e4SLinus Torvalds 161725ebee02SCatalin Marinasconfig VFPv3 161825ebee02SCatalin Marinas bool 161925ebee02SCatalin Marinas depends on VFP 162025ebee02SCatalin Marinas default y if CPU_V7 162125ebee02SCatalin Marinas 1622b5872db4SCatalin Marinasconfig NEON 1623b5872db4SCatalin Marinas bool "Advanced SIMD (NEON) Extension support" 1624b5872db4SCatalin Marinas depends on VFPv3 && CPU_V7 1625b5872db4SCatalin Marinas help 1626b5872db4SCatalin Marinas Say Y to include support code for NEON, the ARMv7 Advanced SIMD 1627b5872db4SCatalin Marinas Extension. 1628b5872db4SCatalin Marinas 16291da177e4SLinus Torvaldsendmenu 16301da177e4SLinus Torvalds 16311da177e4SLinus Torvaldsmenu "Userspace binary formats" 16321da177e4SLinus Torvalds 16331da177e4SLinus Torvaldssource "fs/Kconfig.binfmt" 16341da177e4SLinus Torvalds 16351da177e4SLinus Torvaldsconfig ARTHUR 16361da177e4SLinus Torvalds tristate "RISC OS personality" 1637704bdda0SNicolas Pitre depends on !AEABI 16381da177e4SLinus Torvalds help 16391da177e4SLinus Torvalds Say Y here to include the kernel code necessary if you want to run 16401da177e4SLinus Torvalds Acorn RISC OS/Arthur binaries under Linux. This code is still very 16411da177e4SLinus Torvalds experimental; if this sounds frightening, say N and sleep in peace. 16421da177e4SLinus Torvalds You can also say M here to compile this support as a module (which 16431da177e4SLinus Torvalds will be called arthur). 16441da177e4SLinus Torvalds 16451da177e4SLinus Torvaldsendmenu 16461da177e4SLinus Torvalds 16471da177e4SLinus Torvaldsmenu "Power management options" 16481da177e4SLinus Torvalds 1649eceab4acSRussell Kingsource "kernel/power/Kconfig" 16501da177e4SLinus Torvalds 1651f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE 1652f4cb5700SJohannes Berg def_bool y 1653f4cb5700SJohannes Berg 16541da177e4SLinus Torvaldsendmenu 16551da177e4SLinus Torvalds 1656d5950b43SSam Ravnborgsource "net/Kconfig" 1657d5950b43SSam Ravnborg 1658ac25150fSUwe Kleine-Königsource "drivers/Kconfig" 16591da177e4SLinus Torvalds 16601da177e4SLinus Torvaldssource "fs/Kconfig" 16611da177e4SLinus Torvalds 16621da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug" 16631da177e4SLinus Torvalds 16641da177e4SLinus Torvaldssource "security/Kconfig" 16651da177e4SLinus Torvalds 16661da177e4SLinus Torvaldssource "crypto/Kconfig" 16671da177e4SLinus Torvalds 16681da177e4SLinus Torvaldssource "lib/Kconfig" 1669