xref: /linux/arch/arm/Kconfig (revision cc0e72b87a4afb520fab09b67e1c16e4ec4aaadb)
11da177e4SLinus Torvalds#
21da177e4SLinus Torvalds# For a description of the syntax of this configuration file,
31da177e4SLinus Torvalds# see Documentation/kbuild/kconfig-language.txt.
41da177e4SLinus Torvalds#
51da177e4SLinus Torvalds
61da177e4SLinus Torvaldsmainmenu "Linux Kernel Configuration"
71da177e4SLinus Torvalds
81da177e4SLinus Torvaldsconfig ARM
91da177e4SLinus Torvalds	bool
101da177e4SLinus Torvalds	default y
11e17c6d56SDavid Woodhouse	select HAVE_AOUT
122064c946SAdrian Bunk	select HAVE_IDE
1312b824fbSAlessandro Zummo	select RTC_LIB
1475e7153aSRalf Baechle	select SYS_SUPPORTS_APM_EMULATION
1524b44a66SWill Deacon	select GENERIC_ATOMIC64 if (!CPU_32v6K)
16fe166148SWill Deacon	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
175cbad0ebSJason Wessel	select HAVE_ARCH_KGDB
183f550096SMathieu Desnoyers	select HAVE_KPROBES if (!XIP_KERNEL)
199edddaa2SAnanth N Mavinakayanahalli	select HAVE_KRETPROBES if (HAVE_KPROBES)
20606576ceSSteven Rostedt	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
211fe53268SDmitry Baryshkov	select HAVE_GENERIC_DMA_COHERENT
22e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_GZIP
23e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_LZO
246e8699f7SAlbin Tonnerre	select HAVE_KERNEL_LZMA
257ada189fSJamie Iles	select HAVE_PERF_EVENTS
267ada189fSJamie Iles	select PERF_USE_VMALLOC
271da177e4SLinus Torvalds	help
281da177e4SLinus Torvalds	  The ARM series is a line of low-power-consumption RISC chip designs
29f6c8965aSMartin Michlmayr	  licensed by ARM Ltd and targeted at embedded applications and
301da177e4SLinus Torvalds	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
311da177e4SLinus Torvalds	  manufactured, but legacy ARM-based PC hardware remains popular in
321da177e4SLinus Torvalds	  Europe.  There is an ARM Linux project with a web page at
331da177e4SLinus Torvalds	  <http://www.arm.linux.org.uk/>.
341da177e4SLinus Torvalds
351a189b97SRussell Kingconfig HAVE_PWM
361a189b97SRussell King	bool
371a189b97SRussell King
3875e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION
3975e7153aSRalf Baechle	bool
4075e7153aSRalf Baechle
410a938b97SDavid Brownellconfig GENERIC_GPIO
420a938b97SDavid Brownell	bool
430a938b97SDavid Brownell
44746140c7SKevin Hilmanconfig GENERIC_TIME
45746140c7SKevin Hilman	bool
465cfc8ee0SJohn Stultz	default y
475cfc8ee0SJohn Stultz
485cfc8ee0SJohn Stultzconfig ARCH_USES_GETTIMEOFFSET
495cfc8ee0SJohn Stultz	bool
505cfc8ee0SJohn Stultz	default n
51746140c7SKevin Hilman
520567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS
530567a0c0SKevin Hilman	bool
540567a0c0SKevin Hilman
55a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST
56a8655e83SCatalin Marinas	bool
57a8655e83SCatalin Marinas	depends on GENERIC_CLOCKEVENTS
58a8655e83SCatalin Marinas	default y if SMP && !LOCAL_TIMERS
59a8655e83SCatalin Marinas
60bc581770SLinus Walleijconfig HAVE_TCM
61bc581770SLinus Walleij	bool
62bc581770SLinus Walleij	select GENERIC_ALLOCATOR
63bc581770SLinus Walleij
64e119bfffSRussell Kingconfig HAVE_PROC_CPU
65e119bfffSRussell King	bool
66e119bfffSRussell King
675ea81769SAl Viroconfig NO_IOPORT
685ea81769SAl Viro	bool
695ea81769SAl Viro
701da177e4SLinus Torvaldsconfig EISA
711da177e4SLinus Torvalds	bool
721da177e4SLinus Torvalds	---help---
731da177e4SLinus Torvalds	  The Extended Industry Standard Architecture (EISA) bus was
741da177e4SLinus Torvalds	  developed as an open alternative to the IBM MicroChannel bus.
751da177e4SLinus Torvalds
761da177e4SLinus Torvalds	  The EISA bus provided some of the features of the IBM MicroChannel
771da177e4SLinus Torvalds	  bus while maintaining backward compatibility with cards made for
781da177e4SLinus Torvalds	  the older ISA bus.  The EISA bus saw limited use between 1988 and
791da177e4SLinus Torvalds	  1995 when it was made obsolete by the PCI bus.
801da177e4SLinus Torvalds
811da177e4SLinus Torvalds	  Say Y here if you are building a kernel for an EISA-based machine.
821da177e4SLinus Torvalds
831da177e4SLinus Torvalds	  Otherwise, say N.
841da177e4SLinus Torvalds
851da177e4SLinus Torvaldsconfig SBUS
861da177e4SLinus Torvalds	bool
871da177e4SLinus Torvalds
881da177e4SLinus Torvaldsconfig MCA
891da177e4SLinus Torvalds	bool
901da177e4SLinus Torvalds	help
911da177e4SLinus Torvalds	  MicroChannel Architecture is found in some IBM PS/2 machines and
921da177e4SLinus Torvalds	  laptops.  It is a bus system similar to PCI or ISA. See
931da177e4SLinus Torvalds	  <file:Documentation/mca.txt> (and especially the web page given
941da177e4SLinus Torvalds	  there) before attempting to build an MCA bus kernel.
951da177e4SLinus Torvalds
964a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS
974a2581a0SThomas Gleixner	bool
984a2581a0SThomas Gleixner	default y
994a2581a0SThomas Gleixner
100f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT
101f16fb1ecSRussell King	bool
102f16fb1ecSRussell King	default y
103f16fb1ecSRussell King
104f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT
105f76e9154SNicolas Pitre	bool
106f76e9154SNicolas Pitre	depends on !SMP
107f76e9154SNicolas Pitre	default y
108f76e9154SNicolas Pitre
109f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT
110f16fb1ecSRussell King	bool
111f16fb1ecSRussell King	default y
112f16fb1ecSRussell King
1137ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT
1147ad1bcb2SRussell King	bool
1157ad1bcb2SRussell King	default y
1167ad1bcb2SRussell King
1174a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND
1184a2581a0SThomas Gleixner	bool
1194a2581a0SThomas Gleixner	default y
1204a2581a0SThomas Gleixner
1214a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE
1224a2581a0SThomas Gleixner	bool
1234a2581a0SThomas Gleixner	default y
1244a2581a0SThomas Gleixner
12595c354feSNick Pigginconfig GENERIC_LOCKBREAK
12695c354feSNick Piggin	bool
12795c354feSNick Piggin	default y
12895c354feSNick Piggin	depends on SMP && PREEMPT
12995c354feSNick Piggin
1301da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK
1311da177e4SLinus Torvalds	bool
1321da177e4SLinus Torvalds	default y
1331da177e4SLinus Torvalds
1341da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM
1351da177e4SLinus Torvalds	bool
1361da177e4SLinus Torvalds
137f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32
138f0d1b0b3SDavid Howells	bool
139f0d1b0b3SDavid Howells
140f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64
141f0d1b0b3SDavid Howells	bool
142f0d1b0b3SDavid Howells
14389c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ
14489c52ed4SBen Dooks	bool
14589c52ed4SBen Dooks	help
14689c52ed4SBen Dooks	  Internal node to signify that the ARCH has CPUFREQ support
14789c52ed4SBen Dooks	  and that the relevant menu configurations are displayed for
14889c52ed4SBen Dooks	  it.
14989c52ed4SBen Dooks
150b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT
151b89c3b16SAkinobu Mita	bool
152b89c3b16SAkinobu Mita	default y
153b89c3b16SAkinobu Mita
1541da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY
1551da177e4SLinus Torvalds	bool
1561da177e4SLinus Torvalds	default y
1571da177e4SLinus Torvalds
158a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC
159a08b6b79Sviro@ZenIV.linux.org.uk	bool
160a08b6b79Sviro@ZenIV.linux.org.uk
1615ac6da66SChristoph Lameterconfig ZONE_DMA
1625ac6da66SChristoph Lameter	bool
1635ac6da66SChristoph Lameter
164ccd7ab7fSFUJITA Tomonoriconfig NEED_DMA_MAP_STATE
165ccd7ab7fSFUJITA Tomonori       def_bool y
166ccd7ab7fSFUJITA Tomonori
1671da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA
1681da177e4SLinus Torvalds	bool
1691da177e4SLinus Torvalds
1701da177e4SLinus Torvaldsconfig FIQ
1711da177e4SLinus Torvalds	bool
1721da177e4SLinus Torvalds
173034d2f5aSAl Viroconfig ARCH_MTD_XIP
174034d2f5aSAl Viro	bool
175034d2f5aSAl Viro
17660a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ
17760a752efSPaulius Zaleckas	def_bool y
17860a752efSPaulius Zaleckas
179d6d502faSKukjin Kimconfig ARM_L1_CACHE_SHIFT_6
180d6d502faSKukjin Kim	bool
181d6d502faSKukjin Kim	help
182d6d502faSKukjin Kim	  Setting ARM L1 cache line size to 64 Bytes.
183d6d502faSKukjin Kim
184c760fc19SHyok S. Choiconfig VECTORS_BASE
185c760fc19SHyok S. Choi	hex
1866afd6faeSHyok S. Choi	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
187c760fc19SHyok S. Choi	default DRAM_BASE if REMAP_VECTORS_TO_RAM
188c760fc19SHyok S. Choi	default 0x00000000
189c760fc19SHyok S. Choi	help
190c760fc19SHyok S. Choi	  The base address of exception vectors.
191c760fc19SHyok S. Choi
1921da177e4SLinus Torvaldssource "init/Kconfig"
1931da177e4SLinus Torvalds
194dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer"
195dc52ddc0SMatt Helsley
1961da177e4SLinus Torvaldsmenu "System Type"
1971da177e4SLinus Torvalds
1983c427975SHyok S. Choiconfig MMU
1993c427975SHyok S. Choi	bool "MMU-based Paged Memory Management Support"
2003c427975SHyok S. Choi	default y
2013c427975SHyok S. Choi	help
2023c427975SHyok S. Choi	  Select if you want MMU-based virtualised addressing space
2033c427975SHyok S. Choi	  support by paged memory management. If unsure, say 'Y'.
2043c427975SHyok S. Choi
205ccf50e23SRussell King#
206ccf50e23SRussell King# The "ARM system type" choice list is ordered alphabetically by option
207ccf50e23SRussell King# text.  Please add new entries in the option alphabetic order.
208ccf50e23SRussell King#
2091da177e4SLinus Torvaldschoice
2101da177e4SLinus Torvalds	prompt "ARM system type"
2116a0e2430SCatalin Marinas	default ARCH_VERSATILE
2121da177e4SLinus Torvalds
2134af6fee1SDeepak Saxenaconfig ARCH_AAEC2000
2144af6fee1SDeepak Saxena	bool "Agilent AAEC-2000 based"
215c750815eSRussell King	select CPU_ARM920T
2164af6fee1SDeepak Saxena	select ARM_AMBA
2179483a578SDavid Brownell	select HAVE_CLK
2185cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
2194af6fee1SDeepak Saxena	help
2204af6fee1SDeepak Saxena	  This enables support for systems based on the Agilent AAEC-2000
2214af6fee1SDeepak Saxena
2224af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR
2234af6fee1SDeepak Saxena	bool "ARM Ltd. Integrator family"
2244af6fee1SDeepak Saxena	select ARM_AMBA
22589c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
226d72fbdf0SRussell King	select COMMON_CLKDEV
227c5a0adb5SRussell King	select ICST
22813edd86dSRussell King	select GENERIC_CLOCKEVENTS
229f4b8b319SRussell King	select PLAT_VERSATILE
2304af6fee1SDeepak Saxena	help
2314af6fee1SDeepak Saxena	  Support for ARM's Integrator platform.
2324af6fee1SDeepak Saxena
2334af6fee1SDeepak Saxenaconfig ARCH_REALVIEW
2344af6fee1SDeepak Saxena	bool "ARM Ltd. RealView family"
2354af6fee1SDeepak Saxena	select ARM_AMBA
236cf30fb4aSRussell King	select COMMON_CLKDEV
237c5a0adb5SRussell King	select ICST
238ae30ceacSCatalin Marinas	select GENERIC_CLOCKEVENTS
239eb7fffa3SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
240f4b8b319SRussell King	select PLAT_VERSATILE
241e3887714SRussell King	select ARM_TIMER_SP804
242b56ba8aaSColin Tuckley	select GPIO_PL061 if GPIOLIB
2434af6fee1SDeepak Saxena	help
2444af6fee1SDeepak Saxena	  This enables support for ARM Ltd RealView boards.
2454af6fee1SDeepak Saxena
2464af6fee1SDeepak Saxenaconfig ARCH_VERSATILE
2474af6fee1SDeepak Saxena	bool "ARM Ltd. Versatile family"
2484af6fee1SDeepak Saxena	select ARM_AMBA
2494af6fee1SDeepak Saxena	select ARM_VIC
25071a06da0SRussell King	select COMMON_CLKDEV
251c5a0adb5SRussell King	select ICST
25289df1272SKevin Hilman	select GENERIC_CLOCKEVENTS
253bbeddc43SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
254f4b8b319SRussell King	select PLAT_VERSATILE
255e3887714SRussell King	select ARM_TIMER_SP804
2564af6fee1SDeepak Saxena	help
2574af6fee1SDeepak Saxena	  This enables support for ARM Ltd Versatile board.
2584af6fee1SDeepak Saxena
259ceade897SRussell Kingconfig ARCH_VEXPRESS
260ceade897SRussell King	bool "ARM Ltd. Versatile Express family"
261ceade897SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
262ceade897SRussell King	select ARM_AMBA
263ceade897SRussell King	select ARM_TIMER_SP804
264ceade897SRussell King	select COMMON_CLKDEV
265ceade897SRussell King	select GENERIC_CLOCKEVENTS
266ceade897SRussell King	select HAVE_CLK
267ceade897SRussell King	select ICST
268ceade897SRussell King	select PLAT_VERSATILE
269ceade897SRussell King	help
270ceade897SRussell King	  This enables support for the ARM Ltd Versatile Express boards.
271ceade897SRussell King
2728fc5ffa0SAndrew Victorconfig ARCH_AT91
2738fc5ffa0SAndrew Victor	bool "Atmel AT91"
274f373e8c0SRyan Mallon	select ARCH_REQUIRE_GPIOLIB
27593686ae8SDavid Brownell	select HAVE_CLK
2765cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
2774af6fee1SDeepak Saxena	help
2782b3b3516SAndrew Victor	  This enables support for systems based on the Atmel AT91RM9200,
2792b3b3516SAndrew Victor	  AT91SAM9 and AT91CAP9 processors.
2804af6fee1SDeepak Saxena
281ccf50e23SRussell Kingconfig ARCH_BCMRING
282ccf50e23SRussell King	bool "Broadcom BCMRING"
283ccf50e23SRussell King	depends on MMU
284ccf50e23SRussell King	select CPU_V6
285ccf50e23SRussell King	select ARM_AMBA
286ccf50e23SRussell King	select COMMON_CLKDEV
287ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
288ccf50e23SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
289ccf50e23SRussell King	help
290ccf50e23SRussell King	  Support for Broadcom's BCMRing platform.
291ccf50e23SRussell King
2921da177e4SLinus Torvaldsconfig ARCH_CLPS711X
2934af6fee1SDeepak Saxena	bool "Cirrus Logic CLPS711x/EP721x-based"
294c750815eSRussell King	select CPU_ARM720T
2955cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
296f999b8bdSMartin Michlmayr	help
297f999b8bdSMartin Michlmayr	  Support for Cirrus Logic 711x/721x based boards.
2981da177e4SLinus Torvalds
299d94f944eSAnton Vorontsovconfig ARCH_CNS3XXX
300d94f944eSAnton Vorontsov	bool "Cavium Networks CNS3XXX family"
301d94f944eSAnton Vorontsov	select CPU_V6
302d94f944eSAnton Vorontsov	select GENERIC_CLOCKEVENTS
303d94f944eSAnton Vorontsov	select ARM_GIC
304d94f944eSAnton Vorontsov	help
305d94f944eSAnton Vorontsov	  Support for Cavium Networks CNS3XXX platform.
306d94f944eSAnton Vorontsov
307788c9700SRussell Kingconfig ARCH_GEMINI
308788c9700SRussell King	bool "Cortina Systems Gemini"
309788c9700SRussell King	select CPU_FA526
310788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
3115cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
312788c9700SRussell King	help
313788c9700SRussell King	  Support for the Cortina Systems Gemini family SoCs
314788c9700SRussell King
3151da177e4SLinus Torvaldsconfig ARCH_EBSA110
3161da177e4SLinus Torvalds	bool "EBSA-110"
317c750815eSRussell King	select CPU_SA110
318f7e68bbfSRussell King	select ISA
319c5eb2a2bSRussell King	select NO_IOPORT
3205cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
3211da177e4SLinus Torvalds	help
3221da177e4SLinus Torvalds	  This is an evaluation board for the StrongARM processor available
323f6c8965aSMartin Michlmayr	  from Digital. It has limited hardware on-board, including an
3241da177e4SLinus Torvalds	  Ethernet interface, two PCMCIA sockets, two serial ports and a
3251da177e4SLinus Torvalds	  parallel port.
3261da177e4SLinus Torvalds
327e7736d47SLennert Buytenhekconfig ARCH_EP93XX
328e7736d47SLennert Buytenhek	bool "EP93xx-based"
329c750815eSRussell King	select CPU_ARM920T
330e7736d47SLennert Buytenhek	select ARM_AMBA
331e7736d47SLennert Buytenhek	select ARM_VIC
332ae696fd5SRussell King	select COMMON_CLKDEV
3337444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
334eb33575cSMel Gorman	select ARCH_HAS_HOLES_MEMORYMODEL
3355cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
336e7736d47SLennert Buytenhek	help
337e7736d47SLennert Buytenhek	  This enables support for the Cirrus EP93xx series of CPUs.
338e7736d47SLennert Buytenhek
3391da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE
3401da177e4SLinus Torvalds	bool "FootBridge"
341c750815eSRussell King	select CPU_SA110
3421da177e4SLinus Torvalds	select FOOTBRIDGE
3435cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
344f999b8bdSMartin Michlmayr	help
345f999b8bdSMartin Michlmayr	  Support for systems based on the DC21285 companion chip
346f999b8bdSMartin Michlmayr	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
3471da177e4SLinus Torvalds
348788c9700SRussell Kingconfig ARCH_MXC
349788c9700SRussell King	bool "Freescale MXC/iMX-based"
350788c9700SRussell King	select GENERIC_CLOCKEVENTS
351788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
35203e09cd8SUwe Kleine-König	select COMMON_CLKDEV
353788c9700SRussell King	help
354788c9700SRussell King	  Support for Freescale MXC/iMX-based family of processors
355788c9700SRussell King
3567bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX
3577bd0f2f5Sdmitry pervushin	bool "Freescale STMP3xxx"
3587bd0f2f5Sdmitry pervushin	select CPU_ARM926T
3597bd0f2f5Sdmitry pervushin	select COMMON_CLKDEV
3607bd0f2f5Sdmitry pervushin	select ARCH_REQUIRE_GPIOLIB
3617bd0f2f5Sdmitry pervushin	select GENERIC_CLOCKEVENTS
3627bd0f2f5Sdmitry pervushin	select USB_ARCH_HAS_EHCI
3637bd0f2f5Sdmitry pervushin	help
3647bd0f2f5Sdmitry pervushin	  Support for systems based on the Freescale 3xxx CPUs.
3657bd0f2f5Sdmitry pervushin
3664af6fee1SDeepak Saxenaconfig ARCH_NETX
3674af6fee1SDeepak Saxena	bool "Hilscher NetX based"
368c750815eSRussell King	select CPU_ARM926T
3694af6fee1SDeepak Saxena	select ARM_VIC
3702fcfe6b8SUwe Kleine-König	select GENERIC_CLOCKEVENTS
371f999b8bdSMartin Michlmayr	help
3724af6fee1SDeepak Saxena	  This enables support for systems based on the Hilscher NetX Soc
3734af6fee1SDeepak Saxena
3744af6fee1SDeepak Saxenaconfig ARCH_H720X
3754af6fee1SDeepak Saxena	bool "Hynix HMS720x-based"
376c750815eSRussell King	select CPU_ARM720T
3774af6fee1SDeepak Saxena	select ISA_DMA_API
3785cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
3794af6fee1SDeepak Saxena	help
3804af6fee1SDeepak Saxena	  This enables support for systems based on the Hynix HMS720x
3814af6fee1SDeepak Saxena
3823b938be6SRussell Kingconfig ARCH_IOP13XX
3833b938be6SRussell King	bool "IOP13xx-based"
3843b938be6SRussell King	depends on MMU
385c750815eSRussell King	select CPU_XSC3
3863b938be6SRussell King	select PLAT_IOP
3873b938be6SRussell King	select PCI
3883b938be6SRussell King	select ARCH_SUPPORTS_MSI
3898d5796d2SLennert Buytenhek	select VMSPLIT_1G
3903b938be6SRussell King	help
3913b938be6SRussell King	  Support for Intel's IOP13XX (XScale) family of processors.
3923b938be6SRussell King
3933f7e5815SLennert Buytenhekconfig ARCH_IOP32X
3943f7e5815SLennert Buytenhek	bool "IOP32x-based"
395a4f7e763SRussell King	depends on MMU
396c750815eSRussell King	select CPU_XSCALE
3977ae1f7ecSLennert Buytenhek	select PLAT_IOP
398f7e68bbfSRussell King	select PCI
399bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
400f999b8bdSMartin Michlmayr	help
4013f7e5815SLennert Buytenhek	  Support for Intel's 80219 and IOP32X (XScale) family of
4023f7e5815SLennert Buytenhek	  processors.
4033f7e5815SLennert Buytenhek
4043f7e5815SLennert Buytenhekconfig ARCH_IOP33X
4053f7e5815SLennert Buytenhek	bool "IOP33x-based"
4063f7e5815SLennert Buytenhek	depends on MMU
407c750815eSRussell King	select CPU_XSCALE
4087ae1f7ecSLennert Buytenhek	select PLAT_IOP
4093f7e5815SLennert Buytenhek	select PCI
410bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
4113f7e5815SLennert Buytenhek	help
4123f7e5815SLennert Buytenhek	  Support for Intel's IOP33X (XScale) family of processors.
4131da177e4SLinus Torvalds
4143b938be6SRussell Kingconfig ARCH_IXP23XX
4153b938be6SRussell King 	bool "IXP23XX-based"
416588ef769SDan Williams	depends on MMU
417c750815eSRussell King	select CPU_XSC3
418285f5fa7SDan Williams 	select PCI
4195cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
420285f5fa7SDan Williams	help
4213b938be6SRussell King	  Support for Intel's IXP23xx (XScale) family of processors.
4221da177e4SLinus Torvalds
4231da177e4SLinus Torvaldsconfig ARCH_IXP2000
4241da177e4SLinus Torvalds	bool "IXP2400/2800-based"
425a4f7e763SRussell King	depends on MMU
426c750815eSRussell King	select CPU_XSCALE
427f7e68bbfSRussell King	select PCI
4285cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
429f999b8bdSMartin Michlmayr	help
430f999b8bdSMartin Michlmayr	  Support for Intel's IXP2400/2800 (XScale) family of processors.
4311da177e4SLinus Torvalds
4323b938be6SRussell Kingconfig ARCH_IXP4XX
4333b938be6SRussell King	bool "IXP4xx-based"
434a4f7e763SRussell King	depends on MMU
435c750815eSRussell King	select CPU_XSCALE
4368858e9afSMilan Svoboda	select GENERIC_GPIO
4373b938be6SRussell King	select GENERIC_CLOCKEVENTS
438485bdde7SRussell King	select DMABOUNCE if PCI
439c4713074SLennert Buytenhek	help
4403b938be6SRussell King	  Support for Intel's IXP4XX (XScale) family of processors.
441c4713074SLennert Buytenhek
4421da177e4SLinus Torvaldsconfig ARCH_L7200
4431da177e4SLinus Torvalds	bool "LinkUp-L7200"
444c750815eSRussell King	select CPU_ARM720T
4451da177e4SLinus Torvalds	select FIQ
4465cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
4471da177e4SLinus Torvalds	help
4481da177e4SLinus Torvalds	  Say Y here if you intend to run this kernel on a LinkUp Systems
4491da177e4SLinus Torvalds	  L7200 Software Development Board which uses an ARM720T processor.
4501da177e4SLinus Torvalds	  Information on this board can be obtained at:
4511da177e4SLinus Torvalds
4521da177e4SLinus Torvalds	  <http://www.linkupsys.com/>
4531da177e4SLinus Torvalds
4541da177e4SLinus Torvalds	  If you have any questions or comments about the Linux kernel port
4551da177e4SLinus Torvalds	  to this board, send e-mail to <sjhill@cotw.com>.
4561da177e4SLinus Torvalds
457edabd38eSSaeed Bisharaconfig ARCH_DOVE
458edabd38eSSaeed Bishara	bool "Marvell Dove"
459edabd38eSSaeed Bishara	select PCI
460edabd38eSSaeed Bishara	select ARCH_REQUIRE_GPIOLIB
461edabd38eSSaeed Bishara	select GENERIC_CLOCKEVENTS
462edabd38eSSaeed Bishara	select PLAT_ORION
463edabd38eSSaeed Bishara	help
464edabd38eSSaeed Bishara	  Support for the Marvell Dove SoC 88AP510
465edabd38eSSaeed Bishara
466651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD
467651c74c7SSaeed Bishara	bool "Marvell Kirkwood"
468c750815eSRussell King	select CPU_FEROCEON
469651c74c7SSaeed Bishara	select PCI
470a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
471651c74c7SSaeed Bishara	select GENERIC_CLOCKEVENTS
472651c74c7SSaeed Bishara	select PLAT_ORION
473651c74c7SSaeed Bishara	help
474651c74c7SSaeed Bishara	  Support for the following Marvell Kirkwood series SoCs:
475651c74c7SSaeed Bishara	  88F6180, 88F6192 and 88F6281.
476651c74c7SSaeed Bishara
477788c9700SRussell Kingconfig ARCH_LOKI
478788c9700SRussell King	bool "Marvell Loki (88RC8480)"
479788c9700SRussell King	select CPU_FEROCEON
480788c9700SRussell King	select GENERIC_CLOCKEVENTS
481788c9700SRussell King	select PLAT_ORION
482788c9700SRussell King	help
483788c9700SRussell King	  Support for the Marvell Loki (88RC8480) SoC.
484788c9700SRussell King
485788c9700SRussell Kingconfig ARCH_MV78XX0
486788c9700SRussell King	bool "Marvell MV78xx0"
487788c9700SRussell King	select CPU_FEROCEON
488788c9700SRussell King	select PCI
489a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
490788c9700SRussell King	select GENERIC_CLOCKEVENTS
491788c9700SRussell King	select PLAT_ORION
492788c9700SRussell King	help
493788c9700SRussell King	  Support for the following Marvell MV78xx0 series SoCs:
494788c9700SRussell King	  MV781x0, MV782x0.
495788c9700SRussell King
496788c9700SRussell Kingconfig ARCH_ORION5X
497788c9700SRussell King	bool "Marvell Orion"
498788c9700SRussell King	depends on MMU
499788c9700SRussell King	select CPU_FEROCEON
500788c9700SRussell King	select PCI
501a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
502788c9700SRussell King	select GENERIC_CLOCKEVENTS
503788c9700SRussell King	select PLAT_ORION
504788c9700SRussell King	help
505788c9700SRussell King	  Support for the following Marvell Orion 5x series SoCs:
506788c9700SRussell King	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
507788c9700SRussell King	  Orion-2 (5281), Orion-1-90 (6183).
508788c9700SRussell King
509788c9700SRussell Kingconfig ARCH_MMP
5102f7e8faeSHaojian Zhuang	bool "Marvell PXA168/910/MMP2"
511788c9700SRussell King	depends on MMU
512788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
513788c9700SRussell King	select COMMON_CLKDEV
514788c9700SRussell King	select GENERIC_CLOCKEVENTS
515788c9700SRussell King	select TICK_ONESHOT
516788c9700SRussell King	select PLAT_PXA
517788c9700SRussell King	help
5182f7e8faeSHaojian Zhuang	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
519788c9700SRussell King
520c53c9cf6SAndrew Victorconfig ARCH_KS8695
521c53c9cf6SAndrew Victor	bool "Micrel/Kendin KS8695"
522c750815eSRussell King	select CPU_ARM922T
52372880ad8SDaniel Silverstone	select ARCH_REQUIRE_GPIOLIB
5245cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
525c53c9cf6SAndrew Victor	help
526c53c9cf6SAndrew Victor	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
527c53c9cf6SAndrew Victor	  System-on-Chip devices.
528c53c9cf6SAndrew Victor
5299918cda5SUwe Kleine-Königconfig ARCH_NS9XXX
5309918cda5SUwe Kleine-König	bool "NetSilicon NS9xxx"
531c750815eSRussell King	select CPU_ARM926T
532689f2a01SUwe Kleine-König	select GENERIC_GPIO
533c0bb87f7SUwe Kleine-König	select GENERIC_CLOCKEVENTS
5349483a578SDavid Brownell	select HAVE_CLK
5359918cda5SUwe Kleine-König	help
5369918cda5SUwe Kleine-König	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
5379918cda5SUwe Kleine-König	  System.
5389918cda5SUwe Kleine-König
5399918cda5SUwe Kleine-König	  <http://www.digi.com/products/microprocessors/index.jsp>
5409918cda5SUwe Kleine-König
541788c9700SRussell Kingconfig ARCH_W90X900
542788c9700SRussell King	bool "Nuvoton W90X900 CPU"
543788c9700SRussell King	select CPU_ARM926T
544c52d3d68Swanzongshun	select ARCH_REQUIRE_GPIOLIB
5450e4a34bbSwanzongshun	select COMMON_CLKDEV
54658b5369eSwanzongshun	select GENERIC_CLOCKEVENTS
547777f9bebSLennert Buytenhek	help
548a8bc4eadSwanzongshun	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
549a8bc4eadSwanzongshun	  At present, the w90x900 has been renamed nuc900, regarding
550a8bc4eadSwanzongshun	  the ARM series product line, you can login the following
551a8bc4eadSwanzongshun	  link address to know more.
552a8bc4eadSwanzongshun
553a8bc4eadSwanzongshun	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
554a8bc4eadSwanzongshun		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
555585cf175STzachi Perelstein
556a62e9030Swanzongshunconfig ARCH_NUC93X
557a62e9030Swanzongshun	bool "Nuvoton NUC93X CPU"
558a62e9030Swanzongshun	select CPU_ARM926T
559a62e9030Swanzongshun	select COMMON_CLKDEV
560a62e9030Swanzongshun	help
561a62e9030Swanzongshun	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
562a62e9030Swanzongshun	  low-power and high performance MPEG-4/JPEG multimedia controller chip.
563a62e9030Swanzongshun
5644af6fee1SDeepak Saxenaconfig ARCH_PNX4008
5654af6fee1SDeepak Saxena	bool "Philips Nexperia PNX4008 Mobile"
566c750815eSRussell King	select CPU_ARM926T
5676985a5adSRussell King	select COMMON_CLKDEV
5685cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
5694af6fee1SDeepak Saxena	help
5704af6fee1SDeepak Saxena	  This enables support for Philips PNX4008 mobile platform.
5714af6fee1SDeepak Saxena
5721da177e4SLinus Torvaldsconfig ARCH_PXA
5732c8086a5Seric miao	bool "PXA2xx/PXA3xx-based"
574a4f7e763SRussell King	depends on MMU
575034d2f5aSAl Viro	select ARCH_MTD_XIP
57689c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
5778c3abc7dSRussell King	select COMMON_CLKDEV
5787444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
579981d0f39SEric Miao	select GENERIC_CLOCKEVENTS
580a88264c2SRussell King	select TICK_ONESHOT
581bd5ce433SEric Miao	select PLAT_PXA
582f999b8bdSMartin Michlmayr	help
5832c8086a5Seric miao	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
5841da177e4SLinus Torvalds
585788c9700SRussell Kingconfig ARCH_MSM
586788c9700SRussell King	bool "Qualcomm MSM"
5874b536b8dSSteve Muckle	select HAVE_CLK
58849cbe786SEric Miao	select GENERIC_CLOCKEVENTS
58949cbe786SEric Miao	help
5904b53eb4fSDaniel Walker	  Support for Qualcomm MSM/QSD based systems.  This runs on the
5914b53eb4fSDaniel Walker	  apps processor of the MSM/QSD and depends on a shared memory
5924b53eb4fSDaniel Walker	  interface to the modem processor which runs the baseband
5934b53eb4fSDaniel Walker	  stack and controls some vital subsystems
5944b53eb4fSDaniel Walker	  (clock and power control, etc).
59549cbe786SEric Miao
596c793c1b0SMagnus Dammconfig ARCH_SHMOBILE
597c793c1b0SMagnus Damm	bool "Renesas SH-Mobile"
598c793c1b0SMagnus Damm	help
599c793c1b0SMagnus Damm	  Support for Renesas's SH-Mobile ARM platforms
600c793c1b0SMagnus Damm
6011da177e4SLinus Torvaldsconfig ARCH_RPC
6021da177e4SLinus Torvalds	bool "RiscPC"
6031da177e4SLinus Torvalds	select ARCH_ACORN
6041da177e4SLinus Torvalds	select FIQ
6051da177e4SLinus Torvalds	select TIMER_ACORN
606a08b6b79Sviro@ZenIV.linux.org.uk	select ARCH_MAY_HAVE_PC_FDC
607341eb781SBen Dooks	select HAVE_PATA_PLATFORM
608065909b9SRussell King	select ISA_DMA_API
6095ea81769SAl Viro	select NO_IOPORT
61007f841b7SRussell King	select ARCH_SPARSEMEM_ENABLE
6115cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
6121da177e4SLinus Torvalds	help
6131da177e4SLinus Torvalds	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
6141da177e4SLinus Torvalds	  CD-ROM interface, serial and parallel port, and the floppy drive.
6151da177e4SLinus Torvalds
6161da177e4SLinus Torvaldsconfig ARCH_SA1100
6171da177e4SLinus Torvalds	bool "SA1100-based"
618c750815eSRussell King	select CPU_SA1100
619f7e68bbfSRussell King	select ISA
62005944d74SRussell King	select ARCH_SPARSEMEM_ENABLE
621034d2f5aSAl Viro	select ARCH_MTD_XIP
62289c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
6231937f5b9SRussell King	select CPU_FREQ
6243e238be2SRussell King	select GENERIC_CLOCKEVENTS
6259483a578SDavid Brownell	select HAVE_CLK
6263e238be2SRussell King	select TICK_ONESHOT
6277444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
628f999b8bdSMartin Michlmayr	help
629f999b8bdSMartin Michlmayr	  Support for StrongARM 11x0 based boards.
6301da177e4SLinus Torvalds
6311da177e4SLinus Torvaldsconfig ARCH_S3C2410
63263b1f51bSBen Dooks	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
6330a938b97SDavid Brownell	select GENERIC_GPIO
6349d56c02aSBen Dooks	select ARCH_HAS_CPUFREQ
6359483a578SDavid Brownell	select HAVE_CLK
6365cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
6371da177e4SLinus Torvalds	help
6381da177e4SLinus Torvalds	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
6391da177e4SLinus Torvalds	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
640f6c8965aSMartin Michlmayr	  the Samsung SMDK2410 development board (and derivatives).
6411da177e4SLinus Torvalds
64263b1f51bSBen Dooks	  Note, the S3C2416 and the S3C2450 are so close that they even share
64363b1f51bSBen Dooks	  the same SoC ID code. This means that there is no seperate machine
64463b1f51bSBen Dooks	  directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
64563b1f51bSBen Dooks
646a08ab637SBen Dooksconfig ARCH_S3C64XX
647a08ab637SBen Dooks	bool "Samsung S3C64XX"
64889f1fa08SBen Dooks	select PLAT_SAMSUNG
64989f0ce72SBen Dooks	select CPU_V6
65089f0ce72SBen Dooks	select ARM_VIC
651a08ab637SBen Dooks	select HAVE_CLK
65289f0ce72SBen Dooks	select NO_IOPORT
6535cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
65489c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
65589f0ce72SBen Dooks	select ARCH_REQUIRE_GPIOLIB
65689f0ce72SBen Dooks	select SAMSUNG_CLKSRC
65789f0ce72SBen Dooks	select SAMSUNG_IRQ_VIC_TIMER
65889f0ce72SBen Dooks	select SAMSUNG_IRQ_UART
65989f0ce72SBen Dooks	select S3C_GPIO_TRACK
66089f0ce72SBen Dooks	select S3C_GPIO_PULL_UPDOWN
66189f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C24XX
66289f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C64XX
66389f0ce72SBen Dooks	select S3C_DEV_NAND
66489f0ce72SBen Dooks	select USB_ARCH_HAS_OHCI
66589f0ce72SBen Dooks	select SAMSUNG_GPIOLIB_4BIT
666a08ab637SBen Dooks	help
667a08ab637SBen Dooks	  Samsung S3C64XX series based systems
668a08ab637SBen Dooks
669c4ffccddSKukjin Kimconfig ARCH_S5P6440
670c4ffccddSKukjin Kim	bool "Samsung S5P6440"
671c4ffccddSKukjin Kim	select CPU_V6
672c4ffccddSKukjin Kim	select GENERIC_GPIO
673c4ffccddSKukjin Kim	select HAVE_CLK
674925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
675c4ffccddSKukjin Kim	help
676c4ffccddSKukjin Kim	  Samsung S5P6440 CPU based systems
677c4ffccddSKukjin Kim
678550db7f1SKukjin Kimconfig ARCH_S5P6442
679550db7f1SKukjin Kim	bool "Samsung S5P6442"
680550db7f1SKukjin Kim	select CPU_V6
681550db7f1SKukjin Kim	select GENERIC_GPIO
682550db7f1SKukjin Kim	select HAVE_CLK
683925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
684550db7f1SKukjin Kim	help
685550db7f1SKukjin Kim	  Samsung S5P6442 CPU based systems
686550db7f1SKukjin Kim
687acc84707SMarek Szyprowskiconfig ARCH_S5PC100
688acc84707SMarek Szyprowski	bool "Samsung S5PC100"
6895a7652f2SByungho Min	select GENERIC_GPIO
6905a7652f2SByungho Min	select HAVE_CLK
6915a7652f2SByungho Min	select CPU_V7
692d6d502faSKukjin Kim	select ARM_L1_CACHE_SHIFT_6
693925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
6945a7652f2SByungho Min	help
695acc84707SMarek Szyprowski	  Samsung S5PC100 series based systems
6965a7652f2SByungho Min
697170f4e42SKukjin Kimconfig ARCH_S5PV210
698170f4e42SKukjin Kim	bool "Samsung S5PV210/S5PC110"
699170f4e42SKukjin Kim	select CPU_V7
700170f4e42SKukjin Kim	select GENERIC_GPIO
701170f4e42SKukjin Kim	select HAVE_CLK
702170f4e42SKukjin Kim	select ARM_L1_CACHE_SHIFT_6
703925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
704170f4e42SKukjin Kim	help
705170f4e42SKukjin Kim	  Samsung S5PV210/S5PC110 series based systems
706170f4e42SKukjin Kim
707*cc0e72b8SChanghwan Younconfig ARCH_S5PV310
708*cc0e72b8SChanghwan Youn	bool "Samsung S5PV310/S5PC210"
709*cc0e72b8SChanghwan Youn	select CPU_V7
710*cc0e72b8SChanghwan Youn	select GENERIC_GPIO
711*cc0e72b8SChanghwan Youn	select HAVE_CLK
712*cc0e72b8SChanghwan Youn	select GENERIC_CLOCKEVENTS
713*cc0e72b8SChanghwan Youn	help
714*cc0e72b8SChanghwan Youn	  Samsung S5PV310 series based systems
715*cc0e72b8SChanghwan Youn
7161da177e4SLinus Torvaldsconfig ARCH_SHARK
7171da177e4SLinus Torvalds	bool "Shark"
718c750815eSRussell King	select CPU_SA110
719f7e68bbfSRussell King	select ISA
720f7e68bbfSRussell King	select ISA_DMA
7213bca103aSNicolas Pitre	select ZONE_DMA
722f7e68bbfSRussell King	select PCI
7235cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
724f999b8bdSMartin Michlmayr	help
725f999b8bdSMartin Michlmayr	  Support for the StrongARM based Digital DNARD machine, also known
726f999b8bdSMartin Michlmayr	  as "Shark" (<http://www.shark-linux.de/shark.html>).
7271da177e4SLinus Torvalds
7281da177e4SLinus Torvaldsconfig ARCH_LH7A40X
7291da177e4SLinus Torvalds	bool "Sharp LH7A40X"
730c750815eSRussell King	select CPU_ARM922T
7314ba3f7c5SRussell King	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
7324ba3f7c5SRussell King	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
7335cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
7341da177e4SLinus Torvalds	help
7351da177e4SLinus Torvalds	  Say Y here for systems based on one of the Sharp LH7A40X
7361da177e4SLinus Torvalds	  System on a Chip processors.  These CPUs include an ARM922T
7371da177e4SLinus Torvalds	  core with a wide array of integrated devices for
7381da177e4SLinus Torvalds	  hand-held and low-power applications.
7391da177e4SLinus Torvalds
740d98aac75SLinus Walleijconfig ARCH_U300
741d98aac75SLinus Walleij	bool "ST-Ericsson U300 Series"
742d98aac75SLinus Walleij	depends on MMU
743d98aac75SLinus Walleij	select CPU_ARM926T
744bc581770SLinus Walleij	select HAVE_TCM
745d98aac75SLinus Walleij	select ARM_AMBA
746d98aac75SLinus Walleij	select ARM_VIC
747d98aac75SLinus Walleij	select GENERIC_CLOCKEVENTS
748d98aac75SLinus Walleij	select COMMON_CLKDEV
749d98aac75SLinus Walleij	select GENERIC_GPIO
750d98aac75SLinus Walleij	help
751d98aac75SLinus Walleij	  Support for ST-Ericsson U300 series mobile platforms.
752d98aac75SLinus Walleij
753ccf50e23SRussell Kingconfig ARCH_U8500
754ccf50e23SRussell King	bool "ST-Ericsson U8500 Series"
755ccf50e23SRussell King	select CPU_V7
756ccf50e23SRussell King	select ARM_AMBA
757ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
758ccf50e23SRussell King	select COMMON_CLKDEV
75994bdc0e2SRabin Vincent	select ARCH_REQUIRE_GPIOLIB
760ccf50e23SRussell King	help
761ccf50e23SRussell King	  Support for ST-Ericsson's Ux500 architecture
762ccf50e23SRussell King
763ccf50e23SRussell Kingconfig ARCH_NOMADIK
764ccf50e23SRussell King	bool "STMicroelectronics Nomadik"
765ccf50e23SRussell King	select ARM_AMBA
766ccf50e23SRussell King	select ARM_VIC
767ccf50e23SRussell King	select CPU_ARM926T
768ccf50e23SRussell King	select COMMON_CLKDEV
769ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
770ccf50e23SRussell King	select ARCH_REQUIRE_GPIOLIB
771ccf50e23SRussell King	help
772ccf50e23SRussell King	  Support for the Nomadik platform by ST-Ericsson
773ccf50e23SRussell King
7747c6337e2SKevin Hilmanconfig ARCH_DAVINCI
7757c6337e2SKevin Hilman	bool "TI DaVinci"
7767c6337e2SKevin Hilman	select GENERIC_CLOCKEVENTS
777dce1115bSDavid Brownell	select ARCH_REQUIRE_GPIOLIB
7783bca103aSNicolas Pitre	select ZONE_DMA
7799232fcc9SKevin Hilman	select HAVE_IDE
780c5b736d0SKevin Hilman	select COMMON_CLKDEV
78120e9969bSDavid Brownell	select GENERIC_ALLOCATOR
782ae88e05aSSekhar Nori	select ARCH_HAS_HOLES_MEMORYMODEL
7837c6337e2SKevin Hilman	help
7847c6337e2SKevin Hilman	  Support for TI's DaVinci platform.
7857c6337e2SKevin Hilman
7863b938be6SRussell Kingconfig ARCH_OMAP
7873b938be6SRussell King	bool "TI OMAP"
7889483a578SDavid Brownell	select HAVE_CLK
7897444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
79089c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
79106cad098SKevin Hilman	select GENERIC_CLOCKEVENTS
7929af915daSSriram	select ARCH_HAS_HOLES_MEMORYMODEL
7933b938be6SRussell King	help
7943b938be6SRussell King	  Support for TI's OMAP platform (OMAP1 and OMAP2).
7953b938be6SRussell King
796cee37e50Sviresh kumarconfig PLAT_SPEAR
797cee37e50Sviresh kumar	bool "ST SPEAr"
798cee37e50Sviresh kumar	select ARM_AMBA
799cee37e50Sviresh kumar	select ARCH_REQUIRE_GPIOLIB
800cee37e50Sviresh kumar	select COMMON_CLKDEV
801cee37e50Sviresh kumar	select GENERIC_CLOCKEVENTS
802cee37e50Sviresh kumar	select HAVE_CLK
803cee37e50Sviresh kumar	help
804cee37e50Sviresh kumar	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
805cee37e50Sviresh kumar
8061da177e4SLinus Torvaldsendchoice
8071da177e4SLinus Torvalds
808ccf50e23SRussell King#
809ccf50e23SRussell King# This is sorted alphabetically by mach-* pathname.  However, plat-*
810ccf50e23SRussell King# Kconfigs may be included either alphabetically (according to the
811ccf50e23SRussell King# plat- suffix) or along side the corresponding mach-* source.
812ccf50e23SRussell King#
81395b8f20fSRussell Kingsource "arch/arm/mach-aaec2000/Kconfig"
81495b8f20fSRussell King
81595b8f20fSRussell Kingsource "arch/arm/mach-at91/Kconfig"
81695b8f20fSRussell King
81795b8f20fSRussell Kingsource "arch/arm/mach-bcmring/Kconfig"
81895b8f20fSRussell King
8191da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig"
8201da177e4SLinus Torvalds
821d94f944eSAnton Vorontsovsource "arch/arm/mach-cns3xxx/Kconfig"
822d94f944eSAnton Vorontsov
82395b8f20fSRussell Kingsource "arch/arm/mach-davinci/Kconfig"
82495b8f20fSRussell King
82595b8f20fSRussell Kingsource "arch/arm/mach-dove/Kconfig"
82695b8f20fSRussell King
827e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig"
828e7736d47SLennert Buytenhek
8291da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig"
8301da177e4SLinus Torvalds
83159d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig"
83259d3a193SPaulius Zaleckas
83395b8f20fSRussell Kingsource "arch/arm/mach-h720x/Kconfig"
83495b8f20fSRussell King
8351da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig"
8361da177e4SLinus Torvalds
8373f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig"
8383f7e5815SLennert Buytenhek
8393f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig"
8401da177e4SLinus Torvalds
841285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig"
842285f5fa7SDan Williams
8431da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig"
8441da177e4SLinus Torvalds
8451da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig"
8461da177e4SLinus Torvalds
847c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig"
848c4713074SLennert Buytenhek
84995b8f20fSRussell Kingsource "arch/arm/mach-kirkwood/Kconfig"
85095b8f20fSRussell King
85195b8f20fSRussell Kingsource "arch/arm/mach-ks8695/Kconfig"
85295b8f20fSRussell King
85395b8f20fSRussell Kingsource "arch/arm/mach-lh7a40x/Kconfig"
85495b8f20fSRussell King
855777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig"
856777f9bebSLennert Buytenhek
85795b8f20fSRussell Kingsource "arch/arm/mach-msm/Kconfig"
85895b8f20fSRussell King
859794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig"
860794d15b2SStanislav Samsonov
86195b8f20fSRussell Kingsource "arch/arm/plat-mxc/Kconfig"
8621da177e4SLinus Torvalds
86395b8f20fSRussell Kingsource "arch/arm/mach-netx/Kconfig"
86449cbe786SEric Miao
86595b8f20fSRussell Kingsource "arch/arm/mach-nomadik/Kconfig"
86695b8f20fSRussell Kingsource "arch/arm/plat-nomadik/Kconfig"
86795b8f20fSRussell King
86895b8f20fSRussell Kingsource "arch/arm/mach-ns9xxx/Kconfig"
8691da177e4SLinus Torvalds
870d91a8910SRussell Kingsource "arch/arm/mach-nuc93x/Kconfig"
871d91a8910SRussell King
872d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig"
873d48af15eSTony Lindgren
874d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig"
8751da177e4SLinus Torvalds
8761dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig"
8771dbae815STony Lindgren
8789dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig"
879585cf175STzachi Perelstein
88095b8f20fSRussell Kingsource "arch/arm/mach-pxa/Kconfig"
88195b8f20fSRussell Kingsource "arch/arm/plat-pxa/Kconfig"
8821da177e4SLinus Torvalds
88395b8f20fSRussell Kingsource "arch/arm/mach-mmp/Kconfig"
88495b8f20fSRussell King
88595b8f20fSRussell Kingsource "arch/arm/mach-realview/Kconfig"
88695b8f20fSRussell King
88795b8f20fSRussell Kingsource "arch/arm/mach-sa1100/Kconfig"
888edabd38eSSaeed Bishara
889cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig"
890a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig"
891c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig"
892a21765a7SBen Dooks
893cee37e50Sviresh kumarsource "arch/arm/plat-spear/Kconfig"
894a21765a7SBen Dooks
895a21765a7SBen Dooksif ARCH_S3C2410
896a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig"
8971da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig"
898a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig"
899f1290a49SYauhen Kharuzhysource "arch/arm/mach-s3c2416/Kconfig"
900a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig"
901e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig"
902a21765a7SBen Dooksendif
9031da177e4SLinus Torvalds
904a08ab637SBen Dooksif ARCH_S3C64XX
905431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig"
906a08ab637SBen Dooksendif
907a08ab637SBen Dooks
908c4ffccddSKukjin Kimsource "arch/arm/mach-s5p6440/Kconfig"
909c4ffccddSKukjin Kim
910550db7f1SKukjin Kimsource "arch/arm/mach-s5p6442/Kconfig"
9117bd0f2f5Sdmitry pervushin
9125a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig"
9135a7652f2SByungho Min
914170f4e42SKukjin Kimsource "arch/arm/mach-s5pv210/Kconfig"
915170f4e42SKukjin Kim
916*cc0e72b8SChanghwan Younsource "arch/arm/mach-s5pv310/Kconfig"
917*cc0e72b8SChanghwan Youn
918882d01f9SRussell Kingsource "arch/arm/mach-shmobile/Kconfig"
9191da177e4SLinus Torvalds
920882d01f9SRussell Kingsource "arch/arm/plat-stmp3xxx/Kconfig"
9219e73c84cSBrian Swetland
92295b8f20fSRussell Kingsource "arch/arm/mach-u300/Kconfig"
92352c543f9SQuinn Jensen
92495b8f20fSRussell Kingsource "arch/arm/mach-ux500/Kconfig"
9251da177e4SLinus Torvalds
9261da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig"
9271da177e4SLinus Torvalds
928ceade897SRussell Kingsource "arch/arm/mach-vexpress/Kconfig"
929ceade897SRussell King
9307ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig"
9317ec80ddfSwanzongshun
9321da177e4SLinus Torvalds# Definitions to make life easier
9331da177e4SLinus Torvaldsconfig ARCH_ACORN
9341da177e4SLinus Torvalds	bool
9351da177e4SLinus Torvalds
9367ae1f7ecSLennert Buytenhekconfig PLAT_IOP
9377ae1f7ecSLennert Buytenhek	bool
938469d3044SMikael Pettersson	select GENERIC_CLOCKEVENTS
9397ae1f7ecSLennert Buytenhek
94069b02f6aSLennert Buytenhekconfig PLAT_ORION
94169b02f6aSLennert Buytenhek	bool
94269b02f6aSLennert Buytenhek
943bd5ce433SEric Miaoconfig PLAT_PXA
944bd5ce433SEric Miao	bool
945bd5ce433SEric Miao
946f4b8b319SRussell Kingconfig PLAT_VERSATILE
947f4b8b319SRussell King	bool
948f4b8b319SRussell King
949e3887714SRussell Kingconfig ARM_TIMER_SP804
950e3887714SRussell King	bool
951e3887714SRussell King
9521da177e4SLinus Torvaldssource arch/arm/mm/Kconfig
9531da177e4SLinus Torvalds
954afe4b25eSLennert Buytenhekconfig IWMMXT
955afe4b25eSLennert Buytenhek	bool "Enable iWMMXt support"
95640305a58SEric Miao	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
95740305a58SEric Miao	default y if PXA27x || PXA3xx || ARCH_MMP
958afe4b25eSLennert Buytenhek	help
959afe4b25eSLennert Buytenhek	  Enable support for iWMMXt context switching at run time if
960afe4b25eSLennert Buytenhek	  running on a CPU that supports it.
961afe4b25eSLennert Buytenhek
9621da177e4SLinus Torvalds#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
9631da177e4SLinus Torvaldsconfig XSCALE_PMU
9641da177e4SLinus Torvalds	bool
9651da177e4SLinus Torvalds	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
9661da177e4SLinus Torvalds	default y
9671da177e4SLinus Torvalds
9680f4f0672SJamie Ilesconfig CPU_HAS_PMU
9698954bb0dSWill Deacon	depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
9708954bb0dSWill Deacon		   (!ARCH_OMAP3 || OMAP3_EMU)
9710f4f0672SJamie Iles	default y
9720f4f0672SJamie Iles	bool
9730f4f0672SJamie Iles
9743b93e7b0SHyok S. Choiif !MMU
9753b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu"
9763b93e7b0SHyok S. Choiendif
9773b93e7b0SHyok S. Choi
9789cba3cccSCatalin Marinasconfig ARM_ERRATA_411920
9799cba3cccSCatalin Marinas	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
9809cba3cccSCatalin Marinas	depends on CPU_V6 && !SMP
9819cba3cccSCatalin Marinas	help
9829cba3cccSCatalin Marinas	  Invalidation of the Instruction Cache operation can
9839cba3cccSCatalin Marinas	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
9849cba3cccSCatalin Marinas	  It does not affect the MPCore. This option enables the ARM Ltd.
9859cba3cccSCatalin Marinas	  recommended workaround.
9869cba3cccSCatalin Marinas
9877ce236fcSCatalin Marinasconfig ARM_ERRATA_430973
9887ce236fcSCatalin Marinas	bool "ARM errata: Stale prediction on replaced interworking branch"
9897ce236fcSCatalin Marinas	depends on CPU_V7
9907ce236fcSCatalin Marinas	help
9917ce236fcSCatalin Marinas	  This option enables the workaround for the 430973 Cortex-A8
9927ce236fcSCatalin Marinas	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
9937ce236fcSCatalin Marinas	  interworking branch is replaced with another code sequence at the
9947ce236fcSCatalin Marinas	  same virtual address, whether due to self-modifying code or virtual
9957ce236fcSCatalin Marinas	  to physical address re-mapping, Cortex-A8 does not recover from the
9967ce236fcSCatalin Marinas	  stale interworking branch prediction. This results in Cortex-A8
9977ce236fcSCatalin Marinas	  executing the new code sequence in the incorrect ARM or Thumb state.
9987ce236fcSCatalin Marinas	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
9997ce236fcSCatalin Marinas	  and also flushes the branch target cache at every context switch.
10007ce236fcSCatalin Marinas	  Note that setting specific bits in the ACTLR register may not be
10017ce236fcSCatalin Marinas	  available in non-secure mode.
10027ce236fcSCatalin Marinas
1003855c551fSCatalin Marinasconfig ARM_ERRATA_458693
1004855c551fSCatalin Marinas	bool "ARM errata: Processor deadlock when a false hazard is created"
1005855c551fSCatalin Marinas	depends on CPU_V7
1006855c551fSCatalin Marinas	help
1007855c551fSCatalin Marinas	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1008855c551fSCatalin Marinas	  erratum. For very specific sequences of memory operations, it is
1009855c551fSCatalin Marinas	  possible for a hazard condition intended for a cache line to instead
1010855c551fSCatalin Marinas	  be incorrectly associated with a different cache line. This false
1011855c551fSCatalin Marinas	  hazard might then cause a processor deadlock. The workaround enables
1012855c551fSCatalin Marinas	  the L1 caching of the NEON accesses and disables the PLD instruction
1013855c551fSCatalin Marinas	  in the ACTLR register. Note that setting specific bits in the ACTLR
1014855c551fSCatalin Marinas	  register may not be available in non-secure mode.
1015855c551fSCatalin Marinas
10160516e464SCatalin Marinasconfig ARM_ERRATA_460075
10170516e464SCatalin Marinas	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
10180516e464SCatalin Marinas	depends on CPU_V7
10190516e464SCatalin Marinas	help
10200516e464SCatalin Marinas	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
10210516e464SCatalin Marinas	  erratum. Any asynchronous access to the L2 cache may encounter a
10220516e464SCatalin Marinas	  situation in which recent store transactions to the L2 cache are lost
10230516e464SCatalin Marinas	  and overwritten with stale memory contents from external memory. The
10240516e464SCatalin Marinas	  workaround disables the write-allocate mode for the L2 cache via the
10250516e464SCatalin Marinas	  ACTLR register. Note that setting specific bits in the ACTLR register
10260516e464SCatalin Marinas	  may not be available in non-secure mode.
10270516e464SCatalin Marinas
10289e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369
10299e65582aSSantosh Shilimkar	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
10309e65582aSSantosh Shilimkar	depends on CACHE_L2X0 && ARCH_OMAP4
10319e65582aSSantosh Shilimkar	help
10329e65582aSSantosh Shilimkar	   The PL310 L2 cache controller implements three types of Clean &
10339e65582aSSantosh Shilimkar	   Invalidate maintenance operations: by Physical Address
10349e65582aSSantosh Shilimkar	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
10359e65582aSSantosh Shilimkar	   They are architecturally defined to behave as the execution of a
10369e65582aSSantosh Shilimkar	   clean operation followed immediately by an invalidate operation,
10379e65582aSSantosh Shilimkar	   both performing to the same memory location. This functionality
10389e65582aSSantosh Shilimkar	   is not correctly implemented in PL310 as clean lines are not
10399e65582aSSantosh Shilimkar	   invalidated as a result of these operations. Note that this errata
10409e65582aSSantosh Shilimkar	   uses Texas Instrument's secure monitor api.
10411da177e4SLinus Torvaldsendmenu
10421da177e4SLinus Torvalds
10431da177e4SLinus Torvaldssource "arch/arm/common/Kconfig"
10441da177e4SLinus Torvalds
10451da177e4SLinus Torvaldsconfig FORCE_MAX_ZONEORDER
10461da177e4SLinus Torvalds	int
10471da177e4SLinus Torvalds	depends on SA1111
10481da177e4SLinus Torvalds	default "9"
10491da177e4SLinus Torvalds
10501da177e4SLinus Torvaldsmenu "Bus support"
10511da177e4SLinus Torvalds
10521da177e4SLinus Torvaldsconfig ARM_AMBA
10531da177e4SLinus Torvalds	bool
10541da177e4SLinus Torvalds
10551da177e4SLinus Torvaldsconfig ISA
10561da177e4SLinus Torvalds	bool
10571da177e4SLinus Torvalds	help
10581da177e4SLinus Torvalds	  Find out whether you have ISA slots on your motherboard.  ISA is the
10591da177e4SLinus Torvalds	  name of a bus system, i.e. the way the CPU talks to the other stuff
10601da177e4SLinus Torvalds	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
10611da177e4SLinus Torvalds	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
10621da177e4SLinus Torvalds	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
10631da177e4SLinus Torvalds
1064065909b9SRussell King# Select ISA DMA controller support
10651da177e4SLinus Torvaldsconfig ISA_DMA
10661da177e4SLinus Torvalds	bool
1067065909b9SRussell King	select ISA_DMA_API
10681da177e4SLinus Torvalds
1069065909b9SRussell King# Select ISA DMA interface
10705cae841bSAl Viroconfig ISA_DMA_API
10715cae841bSAl Viro	bool
10725cae841bSAl Viro
10731da177e4SLinus Torvaldsconfig PCI
1074a0113a99SMike Rapoport	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
10751da177e4SLinus Torvalds	help
10761da177e4SLinus Torvalds	  Find out whether you have a PCI motherboard. PCI is the name of a
10771da177e4SLinus Torvalds	  bus system, i.e. the way the CPU talks to the other stuff inside
10781da177e4SLinus Torvalds	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
10791da177e4SLinus Torvalds	  VESA. If you have PCI, say Y, otherwise N.
10801da177e4SLinus Torvalds
108152882173SAnton Vorontsovconfig PCI_DOMAINS
108252882173SAnton Vorontsov	bool
108352882173SAnton Vorontsov	depends on PCI
108452882173SAnton Vorontsov
108536e23590SMatthew Wilcoxconfig PCI_SYSCALL
108636e23590SMatthew Wilcox	def_bool PCI
108736e23590SMatthew Wilcox
10881da177e4SLinus Torvalds# Select the host bridge type
10891da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505
10901da177e4SLinus Torvalds	bool
10911da177e4SLinus Torvalds	depends on PCI && ARCH_SHARK
10921da177e4SLinus Torvalds	default y
10931da177e4SLinus Torvalds
1094a0113a99SMike Rapoportconfig PCI_HOST_ITE8152
1095a0113a99SMike Rapoport	bool
1096a0113a99SMike Rapoport	depends on PCI && MACH_ARMCORE
1097a0113a99SMike Rapoport	default y
1098a0113a99SMike Rapoport	select DMABOUNCE
1099a0113a99SMike Rapoport
11001da177e4SLinus Torvaldssource "drivers/pci/Kconfig"
11011da177e4SLinus Torvalds
11021da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig"
11031da177e4SLinus Torvalds
11041da177e4SLinus Torvaldsendmenu
11051da177e4SLinus Torvalds
11061da177e4SLinus Torvaldsmenu "Kernel Features"
11071da177e4SLinus Torvalds
11080567a0c0SKevin Hilmansource "kernel/time/Kconfig"
11090567a0c0SKevin Hilman
11101da177e4SLinus Torvaldsconfig SMP
11111da177e4SLinus Torvalds	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
111242578c82SRussell King	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
111359ac59f6SRussell King		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 ||\
1114*cc0e72b8SChanghwan Youn		 ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_S5PV310)
1115bc28248eSRussell King	depends on GENERIC_CLOCKEVENTS
1116f6dd9fa5SJens Axboe	select USE_GENERIC_SMP_HELPERS
1117*cc0e72b8SChanghwan Youn	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 ||\
1118*cc0e72b8SChanghwan Youn			ARCH_S5PV310)
11191da177e4SLinus Torvalds	help
11201da177e4SLinus Torvalds	  This enables support for systems with more than one CPU. If you have
11211da177e4SLinus Torvalds	  a system with only one CPU, like most personal computers, say N. If
11221da177e4SLinus Torvalds	  you have a system with more than one CPU, say Y.
11231da177e4SLinus Torvalds
11241da177e4SLinus Torvalds	  If you say N here, the kernel will run on single and multiprocessor
11251da177e4SLinus Torvalds	  machines, but will use only one CPU of a multiprocessor machine. If
11261da177e4SLinus Torvalds	  you say Y here, the kernel will run on many, but not all, single
11271da177e4SLinus Torvalds	  processor machines. On a single processor machine, the kernel will
11281da177e4SLinus Torvalds	  run faster if you say N here.
11291da177e4SLinus Torvalds
113003502faaSAdrian Bunk	  See also <file:Documentation/i386/IO-APIC.txt>,
11311da177e4SLinus Torvalds	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
11321da177e4SLinus Torvalds	  <http://www.linuxdoc.org/docs.html#howto>.
11331da177e4SLinus Torvalds
11341da177e4SLinus Torvalds	  If you don't know what to do here, say N.
11351da177e4SLinus Torvalds
1136a8cbcd92SRussell Kingconfig HAVE_ARM_SCU
1137a8cbcd92SRussell King	bool
1138a8cbcd92SRussell King	depends on SMP
1139a8cbcd92SRussell King	help
1140a8cbcd92SRussell King	  This option enables support for the ARM system coherency unit
1141a8cbcd92SRussell King
1142f32f4ce2SRussell Kingconfig HAVE_ARM_TWD
1143f32f4ce2SRussell King	bool
1144f32f4ce2SRussell King	depends on SMP
1145f32f4ce2SRussell King	help
1146f32f4ce2SRussell King	  This options enables support for the ARM timer and watchdog unit
1147f32f4ce2SRussell King
11488d5796d2SLennert Buytenhekchoice
11498d5796d2SLennert Buytenhek	prompt "Memory split"
11508d5796d2SLennert Buytenhek	default VMSPLIT_3G
11518d5796d2SLennert Buytenhek	help
11528d5796d2SLennert Buytenhek	  Select the desired split between kernel and user memory.
11538d5796d2SLennert Buytenhek
11548d5796d2SLennert Buytenhek	  If you are not absolutely sure what you are doing, leave this
11558d5796d2SLennert Buytenhek	  option alone!
11568d5796d2SLennert Buytenhek
11578d5796d2SLennert Buytenhek	config VMSPLIT_3G
11588d5796d2SLennert Buytenhek		bool "3G/1G user/kernel split"
11598d5796d2SLennert Buytenhek	config VMSPLIT_2G
11608d5796d2SLennert Buytenhek		bool "2G/2G user/kernel split"
11618d5796d2SLennert Buytenhek	config VMSPLIT_1G
11628d5796d2SLennert Buytenhek		bool "1G/3G user/kernel split"
11638d5796d2SLennert Buytenhekendchoice
11648d5796d2SLennert Buytenhek
11658d5796d2SLennert Buytenhekconfig PAGE_OFFSET
11668d5796d2SLennert Buytenhek	hex
11678d5796d2SLennert Buytenhek	default 0x40000000 if VMSPLIT_1G
11688d5796d2SLennert Buytenhek	default 0x80000000 if VMSPLIT_2G
11698d5796d2SLennert Buytenhek	default 0xC0000000
11708d5796d2SLennert Buytenhek
11711da177e4SLinus Torvaldsconfig NR_CPUS
11721da177e4SLinus Torvalds	int "Maximum number of CPUs (2-32)"
11731da177e4SLinus Torvalds	range 2 32
11741da177e4SLinus Torvalds	depends on SMP
11751da177e4SLinus Torvalds	default "4"
11761da177e4SLinus Torvalds
1177a054a811SRussell Kingconfig HOTPLUG_CPU
1178a054a811SRussell King	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1179a054a811SRussell King	depends on SMP && HOTPLUG && EXPERIMENTAL
1180a054a811SRussell King	help
1181a054a811SRussell King	  Say Y here to experiment with turning CPUs off and on.  CPUs
1182a054a811SRussell King	  can be controlled through /sys/devices/system/cpu.
1183a054a811SRussell King
118437ee16aeSRussell Kingconfig LOCAL_TIMERS
118537ee16aeSRussell King	bool "Use local timer interrupts"
118642578c82SRussell King	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1187*cc0e72b8SChanghwan Youn		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1188*cc0e72b8SChanghwan Youn		ARCH_U8500 || ARCH_S5PV310)
118937ee16aeSRussell King	default y
1190*cc0e72b8SChanghwan Youn	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500 || ARCH_S5PV310)
119137ee16aeSRussell King	help
119237ee16aeSRussell King	  Enable support for local timers on SMP platforms, rather then the
119337ee16aeSRussell King	  legacy IPI broadcast method.  Local timers allows the system
119437ee16aeSRussell King	  accounting to be spread across the timer interval, preventing a
119537ee16aeSRussell King	  "thundering herd" at every timer tick.
119637ee16aeSRussell King
1197d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt
11981da177e4SLinus Torvalds
1199f8065813SRussell Kingconfig HZ
1200f8065813SRussell King	int
1201f8065813SRussell King	default 128 if ARCH_L7200
1202*cc0e72b8SChanghwan Youn	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || \
1203*cc0e72b8SChanghwan Youn		       ARCH_S5PV210 || ARCH_S5PV310
1204bfe65704SRussell King	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
12055248c657SDavid Brownell	default AT91_TIMER_HZ if ARCH_AT91
1206f8065813SRussell King	default 100
1207f8065813SRussell King
120816c79651SCatalin Marinasconfig THUMB2_KERNEL
120916c79651SCatalin Marinas	bool "Compile the kernel in Thumb-2 mode"
121016c79651SCatalin Marinas	depends on CPU_V7 && EXPERIMENTAL
121116c79651SCatalin Marinas	select AEABI
121216c79651SCatalin Marinas	select ARM_ASM_UNIFIED
121316c79651SCatalin Marinas	help
121416c79651SCatalin Marinas	  By enabling this option, the kernel will be compiled in
121516c79651SCatalin Marinas	  Thumb-2 mode. A compiler/assembler that understand the unified
121616c79651SCatalin Marinas	  ARM-Thumb syntax is needed.
121716c79651SCatalin Marinas
121816c79651SCatalin Marinas	  If unsure, say N.
121916c79651SCatalin Marinas
12200becb088SCatalin Marinasconfig ARM_ASM_UNIFIED
12210becb088SCatalin Marinas	bool
12220becb088SCatalin Marinas
1223704bdda0SNicolas Pitreconfig AEABI
1224704bdda0SNicolas Pitre	bool "Use the ARM EABI to compile the kernel"
1225704bdda0SNicolas Pitre	help
1226704bdda0SNicolas Pitre	  This option allows for the kernel to be compiled using the latest
1227704bdda0SNicolas Pitre	  ARM ABI (aka EABI).  This is only useful if you are using a user
1228704bdda0SNicolas Pitre	  space environment that is also compiled with EABI.
1229704bdda0SNicolas Pitre
1230704bdda0SNicolas Pitre	  Since there are major incompatibilities between the legacy ABI and
1231704bdda0SNicolas Pitre	  EABI, especially with regard to structure member alignment, this
1232704bdda0SNicolas Pitre	  option also changes the kernel syscall calling convention to
1233704bdda0SNicolas Pitre	  disambiguate both ABIs and allow for backward compatibility support
1234704bdda0SNicolas Pitre	  (selected with CONFIG_OABI_COMPAT).
1235704bdda0SNicolas Pitre
1236704bdda0SNicolas Pitre	  To use this you need GCC version 4.0.0 or later.
1237704bdda0SNicolas Pitre
12386c90c872SNicolas Pitreconfig OABI_COMPAT
1239a73a3ff1SRussell King	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
124061c484d4SNicolas Pitre	depends on AEABI && EXPERIMENTAL
12416c90c872SNicolas Pitre	default y
12426c90c872SNicolas Pitre	help
12436c90c872SNicolas Pitre	  This option preserves the old syscall interface along with the
12446c90c872SNicolas Pitre	  new (ARM EABI) one. It also provides a compatibility layer to
12456c90c872SNicolas Pitre	  intercept syscalls that have structure arguments which layout
12466c90c872SNicolas Pitre	  in memory differs between the legacy ABI and the new ARM EABI
12476c90c872SNicolas Pitre	  (only for non "thumb" binaries). This option adds a tiny
12486c90c872SNicolas Pitre	  overhead to all syscalls and produces a slightly larger kernel.
12496c90c872SNicolas Pitre	  If you know you'll be using only pure EABI user space then you
12506c90c872SNicolas Pitre	  can say N here. If this option is not selected and you attempt
12516c90c872SNicolas Pitre	  to execute a legacy ABI binary then the result will be
12526c90c872SNicolas Pitre	  UNPREDICTABLE (in fact it can be predicted that it won't work
12536c90c872SNicolas Pitre	  at all). If in doubt say Y.
12546c90c872SNicolas Pitre
1255eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL
1256e80d6a24SMel Gorman	bool
1257e80d6a24SMel Gorman
125807a2f737SRussell King# Discontigmem is deprecated
12593f22ab27SDave Hansenconfig ARCH_DISCONTIGMEM_ENABLE
12601da177e4SLinus Torvalds	bool
12611da177e4SLinus Torvalds
126205944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE
126305944d74SRussell King	bool
126405944d74SRussell King
126507a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT
126607a2f737SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
126707a2f737SRussell King
126805944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL
126907a2f737SRussell King	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
127005944d74SRussell King
1271c80d79d7SYasunori Gotoconfig NODES_SHIFT
1272c80d79d7SYasunori Goto	int
1273c80d79d7SYasunori Goto	default "4" if ARCH_LH7A40X
1274c80d79d7SYasunori Goto	default "2"
1275c80d79d7SYasunori Goto	depends on NEED_MULTIPLE_NODES
1276c80d79d7SYasunori Goto
1277053a96caSNicolas Pitreconfig HIGHMEM
1278053a96caSNicolas Pitre	bool "High Memory Support (EXPERIMENTAL)"
1279053a96caSNicolas Pitre	depends on MMU && EXPERIMENTAL
1280053a96caSNicolas Pitre	help
1281053a96caSNicolas Pitre	  The address space of ARM processors is only 4 Gigabytes large
1282053a96caSNicolas Pitre	  and it has to accommodate user address space, kernel address
1283053a96caSNicolas Pitre	  space as well as some memory mapped IO. That means that, if you
1284053a96caSNicolas Pitre	  have a large amount of physical memory and/or IO, not all of the
1285053a96caSNicolas Pitre	  memory can be "permanently mapped" by the kernel. The physical
1286053a96caSNicolas Pitre	  memory that is not permanently mapped is called "high memory".
1287053a96caSNicolas Pitre
1288053a96caSNicolas Pitre	  Depending on the selected kernel/user memory split, minimum
1289053a96caSNicolas Pitre	  vmalloc space and actual amount of RAM, you may not need this
1290053a96caSNicolas Pitre	  option which should result in a slightly faster kernel.
1291053a96caSNicolas Pitre
1292053a96caSNicolas Pitre	  If unsure, say n.
1293053a96caSNicolas Pitre
129465cec8e3SRussell Kingconfig HIGHPTE
129565cec8e3SRussell King	bool "Allocate 2nd-level pagetables from highmem"
129665cec8e3SRussell King	depends on HIGHMEM
129765cec8e3SRussell King	depends on !OUTER_CACHE
129865cec8e3SRussell King
12991b8873a0SJamie Ilesconfig HW_PERF_EVENTS
13001b8873a0SJamie Iles	bool "Enable hardware performance counter support for perf events"
1301fe166148SWill Deacon	depends on PERF_EVENTS && CPU_HAS_PMU
13021b8873a0SJamie Iles	default y
13031b8873a0SJamie Iles	help
13041b8873a0SJamie Iles	  Enable hardware performance counter support for perf events. If
13051b8873a0SJamie Iles	  disabled, perf events will use software events only.
13061b8873a0SJamie Iles
13073f22ab27SDave Hansensource "mm/Kconfig"
13083f22ab27SDave Hansen
13091da177e4SLinus Torvaldsconfig LEDS
13101da177e4SLinus Torvalds	bool "Timer and CPU usage LEDs"
1311e055d5bfSAdrian Bunk	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
13128c8fdbc9SSascha Hauer		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
13131da177e4SLinus Torvalds		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
13141da177e4SLinus Torvalds		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
131573a59c1cSSAN People		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
131625329671SJürgen Schindele		   ARCH_AT91 || ARCH_DAVINCI || \
1317ff3042fbSColin Tuckley		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
13181da177e4SLinus Torvalds	help
13191da177e4SLinus Torvalds	  If you say Y here, the LEDs on your machine will be used
13201da177e4SLinus Torvalds	  to provide useful information about your current system status.
13211da177e4SLinus Torvalds
13221da177e4SLinus Torvalds	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
13231da177e4SLinus Torvalds	  be able to select which LEDs are active using the options below. If
13241da177e4SLinus Torvalds	  you are compiling a kernel for the EBSA-110 or the LART however, the
13251da177e4SLinus Torvalds	  red LED will simply flash regularly to indicate that the system is
13261da177e4SLinus Torvalds	  still functional. It is safe to say Y here if you have a CATS
13271da177e4SLinus Torvalds	  system, but the driver will do nothing.
13281da177e4SLinus Torvalds
13291da177e4SLinus Torvaldsconfig LEDS_TIMER
13301da177e4SLinus Torvalds	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1331eebdf7d7SDavid Brownell			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1332eebdf7d7SDavid Brownell			    || MACH_OMAP_PERSEUS2
13331da177e4SLinus Torvalds	depends on LEDS
13340567a0c0SKevin Hilman	depends on !GENERIC_CLOCKEVENTS
13351da177e4SLinus Torvalds	default y if ARCH_EBSA110
13361da177e4SLinus Torvalds	help
13371da177e4SLinus Torvalds	  If you say Y here, one of the system LEDs (the green one on the
13381da177e4SLinus Torvalds	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
13391da177e4SLinus Torvalds	  will flash regularly to indicate that the system is still
13401da177e4SLinus Torvalds	  operational. This is mainly useful to kernel hackers who are
13411da177e4SLinus Torvalds	  debugging unstable kernels.
13421da177e4SLinus Torvalds
13431da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
13441da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
13451da177e4SLinus Torvalds	  will overrule the CPU usage LED.
13461da177e4SLinus Torvalds
13471da177e4SLinus Torvaldsconfig LEDS_CPU
13481da177e4SLinus Torvalds	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1349eebdf7d7SDavid Brownell			!ARCH_OMAP) \
1350eebdf7d7SDavid Brownell			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1351eebdf7d7SDavid Brownell			|| MACH_OMAP_PERSEUS2
13521da177e4SLinus Torvalds	depends on LEDS
13531da177e4SLinus Torvalds	help
13541da177e4SLinus Torvalds	  If you say Y here, the red LED will be used to give a good real
13551da177e4SLinus Torvalds	  time indication of CPU usage, by lighting whenever the idle task
13561da177e4SLinus Torvalds	  is not currently executing.
13571da177e4SLinus Torvalds
13581da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
13591da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
13601da177e4SLinus Torvalds	  will overrule the CPU usage LED.
13611da177e4SLinus Torvalds
13621da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP
13631da177e4SLinus Torvalds	bool
1364f12d0d7cSHyok S. Choi	depends on CPU_CP15_MMU
13651da177e4SLinus Torvalds	default y if !ARCH_EBSA110
1366e119bfffSRussell King	select HAVE_PROC_CPU if PROC_FS
13671da177e4SLinus Torvalds	help
13681da177e4SLinus Torvalds	  ARM processors cannot fetch/store information which is not
13691da177e4SLinus Torvalds	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
13701da177e4SLinus Torvalds	  address divisible by 4. On 32-bit ARM processors, these non-aligned
13711da177e4SLinus Torvalds	  fetch/store instructions will be emulated in software if you say
13721da177e4SLinus Torvalds	  here, which has a severe performance impact. This is necessary for
13731da177e4SLinus Torvalds	  correct operation of some network protocols. With an IP-only
13741da177e4SLinus Torvalds	  configuration it is safe to say N, otherwise say Y.
13751da177e4SLinus Torvalds
137639ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY
137739ec58f3SLennert Buytenhek	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
137839ec58f3SLennert Buytenhek	depends on MMU && EXPERIMENTAL
137939ec58f3SLennert Buytenhek	default y if CPU_FEROCEON
138039ec58f3SLennert Buytenhek	help
138139ec58f3SLennert Buytenhek	  Implement faster copy_to_user and clear_user methods for CPU
138239ec58f3SLennert Buytenhek	  cores where a 8-word STM instruction give significantly higher
138339ec58f3SLennert Buytenhek	  memory write throughput than a sequence of individual 32bit stores.
138439ec58f3SLennert Buytenhek
138539ec58f3SLennert Buytenhek	  A possible side effect is a slight increase in scheduling latency
138639ec58f3SLennert Buytenhek	  between threads sharing the same address space if they invoke
138739ec58f3SLennert Buytenhek	  such copy operations with large buffers.
138839ec58f3SLennert Buytenhek
138939ec58f3SLennert Buytenhek	  However, if the CPU data cache is using a write-allocate mode,
139039ec58f3SLennert Buytenhek	  this option is unlikely to provide any performance gain.
139139ec58f3SLennert Buytenhek
13921da177e4SLinus Torvaldsendmenu
13931da177e4SLinus Torvalds
13941da177e4SLinus Torvaldsmenu "Boot options"
13951da177e4SLinus Torvalds
13961da177e4SLinus Torvalds# Compressed boot loader in ROM.  Yes, we really want to ask about
13971da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files.
13981da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT
13991da177e4SLinus Torvalds	hex "Compressed ROM boot loader base address"
14001da177e4SLinus Torvalds	default "0"
14011da177e4SLinus Torvalds	help
14021da177e4SLinus Torvalds	  The physical address at which the ROM-able zImage is to be
14031da177e4SLinus Torvalds	  placed in the target.  Platforms which normally make use of
14041da177e4SLinus Torvalds	  ROM-able zImage formats normally set this to a suitable
14051da177e4SLinus Torvalds	  value in their defconfig file.
14061da177e4SLinus Torvalds
14071da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
14081da177e4SLinus Torvalds
14091da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS
14101da177e4SLinus Torvalds	hex "Compressed ROM boot loader BSS address"
14111da177e4SLinus Torvalds	default "0"
14121da177e4SLinus Torvalds	help
1413f8c440b2SDan Fandrich	  The base address of an area of read/write memory in the target
1414f8c440b2SDan Fandrich	  for the ROM-able zImage which must be available while the
1415f8c440b2SDan Fandrich	  decompressor is running. It must be large enough to hold the
1416f8c440b2SDan Fandrich	  entire decompressed kernel plus an additional 128 KiB.
1417f8c440b2SDan Fandrich	  Platforms which normally make use of ROM-able zImage formats
1418f8c440b2SDan Fandrich	  normally set this to a suitable value in their defconfig file.
14191da177e4SLinus Torvalds
14201da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
14211da177e4SLinus Torvalds
14221da177e4SLinus Torvaldsconfig ZBOOT_ROM
14231da177e4SLinus Torvalds	bool "Compressed boot loader in ROM/flash"
14241da177e4SLinus Torvalds	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
14251da177e4SLinus Torvalds	help
14261da177e4SLinus Torvalds	  Say Y here if you intend to execute your compressed kernel image
14271da177e4SLinus Torvalds	  (zImage) directly from ROM or flash.  If unsure, say N.
14281da177e4SLinus Torvalds
14291da177e4SLinus Torvaldsconfig CMDLINE
14301da177e4SLinus Torvalds	string "Default kernel command string"
14311da177e4SLinus Torvalds	default ""
14321da177e4SLinus Torvalds	help
14331da177e4SLinus Torvalds	  On some architectures (EBSA110 and CATS), there is currently no way
14341da177e4SLinus Torvalds	  for the boot loader to pass arguments to the kernel. For these
14351da177e4SLinus Torvalds	  architectures, you should supply some command-line options at build
14361da177e4SLinus Torvalds	  time by entering them here. As a minimum, you should specify the
14371da177e4SLinus Torvalds	  memory size and the root device (e.g., mem=64M root=/dev/nfs).
14381da177e4SLinus Torvalds
143992d2040dSAlexander Hollerconfig CMDLINE_FORCE
144092d2040dSAlexander Holler	bool "Always use the default kernel command string"
144192d2040dSAlexander Holler	depends on CMDLINE != ""
144292d2040dSAlexander Holler	help
144392d2040dSAlexander Holler	  Always use the default kernel command string, even if the boot
144492d2040dSAlexander Holler	  loader passes other arguments to the kernel.
144592d2040dSAlexander Holler	  This is useful if you cannot or don't want to change the
144692d2040dSAlexander Holler	  command-line options your boot loader passes to the kernel.
144792d2040dSAlexander Holler
144892d2040dSAlexander Holler	  If unsure, say N.
144992d2040dSAlexander Holler
14501da177e4SLinus Torvaldsconfig XIP_KERNEL
14511da177e4SLinus Torvalds	bool "Kernel Execute-In-Place from ROM"
14521da177e4SLinus Torvalds	depends on !ZBOOT_ROM
14531da177e4SLinus Torvalds	help
14541da177e4SLinus Torvalds	  Execute-In-Place allows the kernel to run from non-volatile storage
14551da177e4SLinus Torvalds	  directly addressable by the CPU, such as NOR flash. This saves RAM
14561da177e4SLinus Torvalds	  space since the text section of the kernel is not loaded from flash
14571da177e4SLinus Torvalds	  to RAM.  Read-write sections, such as the data section and stack,
14581da177e4SLinus Torvalds	  are still copied to RAM.  The XIP kernel is not compressed since
14591da177e4SLinus Torvalds	  it has to run directly from flash, so it will take more space to
14601da177e4SLinus Torvalds	  store it.  The flash address used to link the kernel object files,
14611da177e4SLinus Torvalds	  and for storing it, is configuration dependent. Therefore, if you
14621da177e4SLinus Torvalds	  say Y here, you must know the proper physical address where to
14631da177e4SLinus Torvalds	  store the kernel image depending on your own flash memory usage.
14641da177e4SLinus Torvalds
14651da177e4SLinus Torvalds	  Also note that the make target becomes "make xipImage" rather than
14661da177e4SLinus Torvalds	  "make zImage" or "make Image".  The final kernel binary to put in
14671da177e4SLinus Torvalds	  ROM memory will be arch/arm/boot/xipImage.
14681da177e4SLinus Torvalds
14691da177e4SLinus Torvalds	  If unsure, say N.
14701da177e4SLinus Torvalds
14711da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR
14721da177e4SLinus Torvalds	hex "XIP Kernel Physical Location"
14731da177e4SLinus Torvalds	depends on XIP_KERNEL
14741da177e4SLinus Torvalds	default "0x00080000"
14751da177e4SLinus Torvalds	help
14761da177e4SLinus Torvalds	  This is the physical address in your flash memory the kernel will
14771da177e4SLinus Torvalds	  be linked for and stored to.  This address is dependent on your
14781da177e4SLinus Torvalds	  own flash usage.
14791da177e4SLinus Torvalds
1480c587e4a6SRichard Purdieconfig KEXEC
1481c587e4a6SRichard Purdie	bool "Kexec system call (EXPERIMENTAL)"
1482c587e4a6SRichard Purdie	depends on EXPERIMENTAL
1483c587e4a6SRichard Purdie	help
1484c587e4a6SRichard Purdie	  kexec is a system call that implements the ability to shutdown your
1485c587e4a6SRichard Purdie	  current kernel, and to start another kernel.  It is like a reboot
148601dd2fbfSMatt LaPlante	  but it is independent of the system firmware.   And like a reboot
1487c587e4a6SRichard Purdie	  you can start any kernel with it, not just Linux.
1488c587e4a6SRichard Purdie
1489c587e4a6SRichard Purdie	  It is an ongoing process to be certain the hardware in a machine
1490c587e4a6SRichard Purdie	  is properly shutdown, so do not be surprised if this code does not
1491c587e4a6SRichard Purdie	  initially work for you.  It may help to enable device hotplugging
1492c587e4a6SRichard Purdie	  support.
1493c587e4a6SRichard Purdie
14944cd9d6f7SRichard Purdieconfig ATAGS_PROC
14954cd9d6f7SRichard Purdie	bool "Export atags in procfs"
1496b98d7291SUli Luckas	depends on KEXEC
1497b98d7291SUli Luckas	default y
14984cd9d6f7SRichard Purdie	help
14994cd9d6f7SRichard Purdie	  Should the atags used to boot the kernel be exported in an "atags"
15004cd9d6f7SRichard Purdie	  file in procfs. Useful with kexec.
15014cd9d6f7SRichard Purdie
15021da177e4SLinus Torvaldsendmenu
15031da177e4SLinus Torvalds
1504ac9d7efcSRussell Kingmenu "CPU Power Management"
15051da177e4SLinus Torvalds
150689c52ed4SBen Dooksif ARCH_HAS_CPUFREQ
15071da177e4SLinus Torvalds
15081da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig"
15091da177e4SLinus Torvalds
15101da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100
15111da177e4SLinus Torvalds	bool
15121da177e4SLinus Torvalds
15131da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110
15141da177e4SLinus Torvalds	bool
15151da177e4SLinus Torvalds
15161da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR
15171da177e4SLinus Torvalds	tristate "CPUfreq driver for ARM Integrator CPUs"
15181da177e4SLinus Torvalds	depends on ARCH_INTEGRATOR && CPU_FREQ
15191da177e4SLinus Torvalds	default y
15201da177e4SLinus Torvalds	help
15211da177e4SLinus Torvalds	  This enables the CPUfreq driver for ARM Integrator CPUs.
15221da177e4SLinus Torvalds
15231da177e4SLinus Torvalds	  For details, take a look at <file:Documentation/cpu-freq>.
15241da177e4SLinus Torvalds
15251da177e4SLinus Torvalds	  If in doubt, say Y.
15261da177e4SLinus Torvalds
15279e2697ffSRussell Kingconfig CPU_FREQ_PXA
15289e2697ffSRussell King	bool
15299e2697ffSRussell King	depends on CPU_FREQ && ARCH_PXA && PXA25x
15309e2697ffSRussell King	default y
15319e2697ffSRussell King	select CPU_FREQ_DEFAULT_GOV_USERSPACE
15329e2697ffSRussell King
1533b3748dddSMark Brownconfig CPU_FREQ_S3C64XX
1534b3748dddSMark Brown	bool "CPUfreq support for Samsung S3C64XX CPUs"
1535b3748dddSMark Brown	depends on CPU_FREQ && CPU_S3C6410
1536b3748dddSMark Brown
15379d56c02aSBen Dooksconfig CPU_FREQ_S3C
15389d56c02aSBen Dooks	bool
15399d56c02aSBen Dooks	help
15409d56c02aSBen Dooks	  Internal configuration node for common cpufreq on Samsung SoC
15419d56c02aSBen Dooks
15429d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX
15439d56c02aSBen Dooks	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
15449d56c02aSBen Dooks	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
15459d56c02aSBen Dooks	select CPU_FREQ_S3C
15469d56c02aSBen Dooks	help
15479d56c02aSBen Dooks	  This enables the CPUfreq driver for the Samsung S3C24XX family
15489d56c02aSBen Dooks	  of CPUs.
15499d56c02aSBen Dooks
15509d56c02aSBen Dooks	  For details, take a look at <file:Documentation/cpu-freq>.
15519d56c02aSBen Dooks
15529d56c02aSBen Dooks	  If in doubt, say N.
15539d56c02aSBen Dooks
15549d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL
15559d56c02aSBen Dooks	bool "Support CPUfreq changing of PLL frequency"
15569d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
15579d56c02aSBen Dooks	help
15589d56c02aSBen Dooks	  Compile in support for changing the PLL frequency from the
15599d56c02aSBen Dooks	  S3C24XX series CPUfreq driver. The PLL takes time to settle
15609d56c02aSBen Dooks	  after a frequency change, so by default it is not enabled.
15619d56c02aSBen Dooks
15629d56c02aSBen Dooks	  This also means that the PLL tables for the selected CPU(s) will
15639d56c02aSBen Dooks	  be built which may increase the size of the kernel image.
15649d56c02aSBen Dooks
15659d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG
15669d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver core"
15679d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
15689d56c02aSBen Dooks	help
15699d56c02aSBen Dooks	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
15709d56c02aSBen Dooks
15719d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG
15729d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver IO timing"
15739d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
15749d56c02aSBen Dooks	help
15759d56c02aSBen Dooks	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
15769d56c02aSBen Dooks
1577e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS
1578e6d197a6SBen Dooks	bool "Export debugfs for CPUFreq"
1579e6d197a6SBen Dooks	depends on CPU_FREQ_S3C24XX && DEBUG_FS
1580e6d197a6SBen Dooks	help
1581e6d197a6SBen Dooks	  Export status information via debugfs.
1582e6d197a6SBen Dooks
15831da177e4SLinus Torvaldsendif
15841da177e4SLinus Torvalds
1585ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig"
1586ac9d7efcSRussell King
1587ac9d7efcSRussell Kingendmenu
1588ac9d7efcSRussell King
15891da177e4SLinus Torvaldsmenu "Floating point emulation"
15901da177e4SLinus Torvalds
15911da177e4SLinus Torvaldscomment "At least one emulation must be selected"
15921da177e4SLinus Torvalds
15931da177e4SLinus Torvaldsconfig FPE_NWFPE
15941da177e4SLinus Torvalds	bool "NWFPE math emulation"
15958993a44cSNicolas Pitre	depends on !AEABI || OABI_COMPAT
15961da177e4SLinus Torvalds	---help---
15971da177e4SLinus Torvalds	  Say Y to include the NWFPE floating point emulator in the kernel.
15981da177e4SLinus Torvalds	  This is necessary to run most binaries. Linux does not currently
15991da177e4SLinus Torvalds	  support floating point hardware so you need to say Y here even if
16001da177e4SLinus Torvalds	  your machine has an FPA or floating point co-processor podule.
16011da177e4SLinus Torvalds
16021da177e4SLinus Torvalds	  You may say N here if you are going to load the Acorn FPEmulator
16031da177e4SLinus Torvalds	  early in the bootup.
16041da177e4SLinus Torvalds
16051da177e4SLinus Torvaldsconfig FPE_NWFPE_XP
16061da177e4SLinus Torvalds	bool "Support extended precision"
1607bedf142bSLennert Buytenhek	depends on FPE_NWFPE
16081da177e4SLinus Torvalds	help
16091da177e4SLinus Torvalds	  Say Y to include 80-bit support in the kernel floating-point
16101da177e4SLinus Torvalds	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
16111da177e4SLinus Torvalds	  Note that gcc does not generate 80-bit operations by default,
16121da177e4SLinus Torvalds	  so in most cases this option only enlarges the size of the
16131da177e4SLinus Torvalds	  floating point emulator without any good reason.
16141da177e4SLinus Torvalds
16151da177e4SLinus Torvalds	  You almost surely want to say N here.
16161da177e4SLinus Torvalds
16171da177e4SLinus Torvaldsconfig FPE_FASTFPE
16181da177e4SLinus Torvalds	bool "FastFPE math emulation (EXPERIMENTAL)"
16198993a44cSNicolas Pitre	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
16201da177e4SLinus Torvalds	---help---
16211da177e4SLinus Torvalds	  Say Y here to include the FAST floating point emulator in the kernel.
16221da177e4SLinus Torvalds	  This is an experimental much faster emulator which now also has full
16231da177e4SLinus Torvalds	  precision for the mantissa.  It does not support any exceptions.
16241da177e4SLinus Torvalds	  It is very simple, and approximately 3-6 times faster than NWFPE.
16251da177e4SLinus Torvalds
16261da177e4SLinus Torvalds	  It should be sufficient for most programs.  It may be not suitable
16271da177e4SLinus Torvalds	  for scientific calculations, but you have to check this for yourself.
16281da177e4SLinus Torvalds	  If you do not feel you need a faster FP emulation you should better
16291da177e4SLinus Torvalds	  choose NWFPE.
16301da177e4SLinus Torvalds
16311da177e4SLinus Torvaldsconfig VFP
16321da177e4SLinus Torvalds	bool "VFP-format floating point maths"
1633c00d4ffdSRussell King	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
16341da177e4SLinus Torvalds	help
16351da177e4SLinus Torvalds	  Say Y to include VFP support code in the kernel. This is needed
16361da177e4SLinus Torvalds	  if your hardware includes a VFP unit.
16371da177e4SLinus Torvalds
16381da177e4SLinus Torvalds	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
16391da177e4SLinus Torvalds	  release notes and additional status information.
16401da177e4SLinus Torvalds
16411da177e4SLinus Torvalds	  Say N if your target does not have VFP hardware.
16421da177e4SLinus Torvalds
164325ebee02SCatalin Marinasconfig VFPv3
164425ebee02SCatalin Marinas	bool
164525ebee02SCatalin Marinas	depends on VFP
164625ebee02SCatalin Marinas	default y if CPU_V7
164725ebee02SCatalin Marinas
1648b5872db4SCatalin Marinasconfig NEON
1649b5872db4SCatalin Marinas	bool "Advanced SIMD (NEON) Extension support"
1650b5872db4SCatalin Marinas	depends on VFPv3 && CPU_V7
1651b5872db4SCatalin Marinas	help
1652b5872db4SCatalin Marinas	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1653b5872db4SCatalin Marinas	  Extension.
1654b5872db4SCatalin Marinas
16551da177e4SLinus Torvaldsendmenu
16561da177e4SLinus Torvalds
16571da177e4SLinus Torvaldsmenu "Userspace binary formats"
16581da177e4SLinus Torvalds
16591da177e4SLinus Torvaldssource "fs/Kconfig.binfmt"
16601da177e4SLinus Torvalds
16611da177e4SLinus Torvaldsconfig ARTHUR
16621da177e4SLinus Torvalds	tristate "RISC OS personality"
1663704bdda0SNicolas Pitre	depends on !AEABI
16641da177e4SLinus Torvalds	help
16651da177e4SLinus Torvalds	  Say Y here to include the kernel code necessary if you want to run
16661da177e4SLinus Torvalds	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
16671da177e4SLinus Torvalds	  experimental; if this sounds frightening, say N and sleep in peace.
16681da177e4SLinus Torvalds	  You can also say M here to compile this support as a module (which
16691da177e4SLinus Torvalds	  will be called arthur).
16701da177e4SLinus Torvalds
16711da177e4SLinus Torvaldsendmenu
16721da177e4SLinus Torvalds
16731da177e4SLinus Torvaldsmenu "Power management options"
16741da177e4SLinus Torvalds
1675eceab4acSRussell Kingsource "kernel/power/Kconfig"
16761da177e4SLinus Torvalds
1677f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE
1678f4cb5700SJohannes Berg	def_bool y
1679f4cb5700SJohannes Berg
16801da177e4SLinus Torvaldsendmenu
16811da177e4SLinus Torvalds
1682d5950b43SSam Ravnborgsource "net/Kconfig"
1683d5950b43SSam Ravnborg
1684ac25150fSUwe Kleine-Königsource "drivers/Kconfig"
16851da177e4SLinus Torvalds
16861da177e4SLinus Torvaldssource "fs/Kconfig"
16871da177e4SLinus Torvalds
16881da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug"
16891da177e4SLinus Torvalds
16901da177e4SLinus Torvaldssource "security/Kconfig"
16911da177e4SLinus Torvalds
16921da177e4SLinus Torvaldssource "crypto/Kconfig"
16931da177e4SLinus Torvalds
16941da177e4SLinus Torvaldssource "lib/Kconfig"
1695