xref: /linux/arch/arm/Kconfig (revision 9e65582a8e8715f883a34eea66e0643778ce878d)
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
241da177e4SLinus Torvalds	help
251da177e4SLinus Torvalds	  The ARM series is a line of low-power-consumption RISC chip designs
26f6c8965aSMartin Michlmayr	  licensed by ARM Ltd and targeted at embedded applications and
271da177e4SLinus Torvalds	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
281da177e4SLinus Torvalds	  manufactured, but legacy ARM-based PC hardware remains popular in
291da177e4SLinus Torvalds	  Europe.  There is an ARM Linux project with a web page at
301da177e4SLinus Torvalds	  <http://www.arm.linux.org.uk/>.
311da177e4SLinus Torvalds
321a189b97SRussell Kingconfig HAVE_PWM
331a189b97SRussell King	bool
341a189b97SRussell King
3575e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION
3675e7153aSRalf Baechle	bool
3775e7153aSRalf Baechle
380a938b97SDavid Brownellconfig GENERIC_GPIO
390a938b97SDavid Brownell	bool
400a938b97SDavid Brownell
41746140c7SKevin Hilmanconfig GENERIC_TIME
42746140c7SKevin Hilman	bool
43746140c7SKevin Hilman
440567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS
450567a0c0SKevin Hilman	bool
460567a0c0SKevin Hilman
47a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST
48a8655e83SCatalin Marinas	bool
49a8655e83SCatalin Marinas	depends on GENERIC_CLOCKEVENTS
50a8655e83SCatalin Marinas	default y if SMP && !LOCAL_TIMERS
51a8655e83SCatalin Marinas
52bc581770SLinus Walleijconfig HAVE_TCM
53bc581770SLinus Walleij	bool
54bc581770SLinus Walleij	select GENERIC_ALLOCATOR
55bc581770SLinus Walleij
56e119bfffSRussell Kingconfig HAVE_PROC_CPU
57e119bfffSRussell King	bool
58e119bfffSRussell King
595ea81769SAl Viroconfig NO_IOPORT
605ea81769SAl Viro	bool
615ea81769SAl Viro
621da177e4SLinus Torvaldsconfig EISA
631da177e4SLinus Torvalds	bool
641da177e4SLinus Torvalds	---help---
651da177e4SLinus Torvalds	  The Extended Industry Standard Architecture (EISA) bus was
661da177e4SLinus Torvalds	  developed as an open alternative to the IBM MicroChannel bus.
671da177e4SLinus Torvalds
681da177e4SLinus Torvalds	  The EISA bus provided some of the features of the IBM MicroChannel
691da177e4SLinus Torvalds	  bus while maintaining backward compatibility with cards made for
701da177e4SLinus Torvalds	  the older ISA bus.  The EISA bus saw limited use between 1988 and
711da177e4SLinus Torvalds	  1995 when it was made obsolete by the PCI bus.
721da177e4SLinus Torvalds
731da177e4SLinus Torvalds	  Say Y here if you are building a kernel for an EISA-based machine.
741da177e4SLinus Torvalds
751da177e4SLinus Torvalds	  Otherwise, say N.
761da177e4SLinus Torvalds
771da177e4SLinus Torvaldsconfig SBUS
781da177e4SLinus Torvalds	bool
791da177e4SLinus Torvalds
801da177e4SLinus Torvaldsconfig MCA
811da177e4SLinus Torvalds	bool
821da177e4SLinus Torvalds	help
831da177e4SLinus Torvalds	  MicroChannel Architecture is found in some IBM PS/2 machines and
841da177e4SLinus Torvalds	  laptops.  It is a bus system similar to PCI or ISA. See
851da177e4SLinus Torvalds	  <file:Documentation/mca.txt> (and especially the web page given
861da177e4SLinus Torvalds	  there) before attempting to build an MCA bus kernel.
871da177e4SLinus Torvalds
884a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS
894a2581a0SThomas Gleixner	bool
904a2581a0SThomas Gleixner	default y
914a2581a0SThomas Gleixner
92f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT
93f16fb1ecSRussell King	bool
94f16fb1ecSRussell King	default y
95f16fb1ecSRussell King
96f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT
97f76e9154SNicolas Pitre	bool
98f76e9154SNicolas Pitre	depends on !SMP
99f76e9154SNicolas Pitre	default y
100f76e9154SNicolas Pitre
101f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT
102f16fb1ecSRussell King	bool
103f16fb1ecSRussell King	default y
104f16fb1ecSRussell King
1057ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT
1067ad1bcb2SRussell King	bool
1077ad1bcb2SRussell King	default y
1087ad1bcb2SRussell King
1094a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND
1104a2581a0SThomas Gleixner	bool
1114a2581a0SThomas Gleixner	default y
1124a2581a0SThomas Gleixner
1134a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE
1144a2581a0SThomas Gleixner	bool
1154a2581a0SThomas Gleixner	default y
1164a2581a0SThomas Gleixner
11795c354feSNick Pigginconfig GENERIC_LOCKBREAK
11895c354feSNick Piggin	bool
11995c354feSNick Piggin	default y
12095c354feSNick Piggin	depends on SMP && PREEMPT
12195c354feSNick Piggin
1221da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK
1231da177e4SLinus Torvalds	bool
1241da177e4SLinus Torvalds	default y
1251da177e4SLinus Torvalds
1261da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM
1271da177e4SLinus Torvalds	bool
1281da177e4SLinus Torvalds
129f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32
130f0d1b0b3SDavid Howells	bool
131f0d1b0b3SDavid Howells
132f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64
133f0d1b0b3SDavid Howells	bool
134f0d1b0b3SDavid Howells
13589c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ
13689c52ed4SBen Dooks	bool
13789c52ed4SBen Dooks	help
13889c52ed4SBen Dooks	  Internal node to signify that the ARCH has CPUFREQ support
13989c52ed4SBen Dooks	  and that the relevant menu configurations are displayed for
14089c52ed4SBen Dooks	  it.
14189c52ed4SBen Dooks
142b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT
143b89c3b16SAkinobu Mita	bool
144b89c3b16SAkinobu Mita	default y
145b89c3b16SAkinobu Mita
1461da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY
1471da177e4SLinus Torvalds	bool
1481da177e4SLinus Torvalds	default y
1491da177e4SLinus Torvalds
150a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC
151a08b6b79Sviro@ZenIV.linux.org.uk	bool
152a08b6b79Sviro@ZenIV.linux.org.uk
1535ac6da66SChristoph Lameterconfig ZONE_DMA
1545ac6da66SChristoph Lameter	bool
1555ac6da66SChristoph Lameter
1561da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA
1571da177e4SLinus Torvalds	bool
1581da177e4SLinus Torvalds
1591da177e4SLinus Torvaldsconfig FIQ
1601da177e4SLinus Torvalds	bool
1611da177e4SLinus Torvalds
162034d2f5aSAl Viroconfig ARCH_MTD_XIP
163034d2f5aSAl Viro	bool
164034d2f5aSAl Viro
16560a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ
16660a752efSPaulius Zaleckas	def_bool y
16760a752efSPaulius Zaleckas
168c0ffa3a9SMathieu Desnoyersif OPROFILE
169c0ffa3a9SMathieu Desnoyers
170c0ffa3a9SMathieu Desnoyersconfig OPROFILE_ARMV6
171c0ffa3a9SMathieu Desnoyers	def_bool y
172c0ffa3a9SMathieu Desnoyers	depends on CPU_V6 && !SMP
173c0ffa3a9SMathieu Desnoyers	select OPROFILE_ARM11_CORE
174c0ffa3a9SMathieu Desnoyers
175c0ffa3a9SMathieu Desnoyersconfig OPROFILE_MPCORE
176c0ffa3a9SMathieu Desnoyers	def_bool y
177c0ffa3a9SMathieu Desnoyers	depends on CPU_V6 && SMP
178c0ffa3a9SMathieu Desnoyers	select OPROFILE_ARM11_CORE
179c0ffa3a9SMathieu Desnoyers
180c0ffa3a9SMathieu Desnoyersconfig OPROFILE_ARM11_CORE
181c0ffa3a9SMathieu Desnoyers	bool
182c0ffa3a9SMathieu Desnoyers
183d7ac4e28SJean PIHETconfig OPROFILE_ARMV7
184d7ac4e28SJean PIHET	def_bool y
185d7ac4e28SJean PIHET	depends on CPU_V7 && !SMP
186d7ac4e28SJean PIHET	bool
187d7ac4e28SJean PIHET
188c0ffa3a9SMathieu Desnoyersendif
189c0ffa3a9SMathieu Desnoyers
190c760fc19SHyok S. Choiconfig VECTORS_BASE
191c760fc19SHyok S. Choi	hex
1926afd6faeSHyok S. Choi	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
193c760fc19SHyok S. Choi	default DRAM_BASE if REMAP_VECTORS_TO_RAM
194c760fc19SHyok S. Choi	default 0x00000000
195c760fc19SHyok S. Choi	help
196c760fc19SHyok S. Choi	  The base address of exception vectors.
197c760fc19SHyok S. Choi
1981da177e4SLinus Torvaldssource "init/Kconfig"
1991da177e4SLinus Torvalds
200dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer"
201dc52ddc0SMatt Helsley
2021da177e4SLinus Torvaldsmenu "System Type"
2031da177e4SLinus Torvalds
2043c427975SHyok S. Choiconfig MMU
2053c427975SHyok S. Choi	bool "MMU-based Paged Memory Management Support"
2063c427975SHyok S. Choi	default y
2073c427975SHyok S. Choi	help
2083c427975SHyok S. Choi	  Select if you want MMU-based virtualised addressing space
2093c427975SHyok S. Choi	  support by paged memory management. If unsure, say 'Y'.
2103c427975SHyok S. Choi
2111da177e4SLinus Torvaldschoice
2121da177e4SLinus Torvalds	prompt "ARM system type"
2136a0e2430SCatalin Marinas	default ARCH_VERSATILE
2141da177e4SLinus Torvalds
2154af6fee1SDeepak Saxenaconfig ARCH_AAEC2000
2164af6fee1SDeepak Saxena	bool "Agilent AAEC-2000 based"
217c750815eSRussell King	select CPU_ARM920T
2184af6fee1SDeepak Saxena	select ARM_AMBA
2199483a578SDavid Brownell	select HAVE_CLK
2204af6fee1SDeepak Saxena	help
2214af6fee1SDeepak Saxena	  This enables support for systems based on the Agilent AAEC-2000
2224af6fee1SDeepak Saxena
2234af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR
2244af6fee1SDeepak Saxena	bool "ARM Ltd. Integrator family"
2254af6fee1SDeepak Saxena	select ARM_AMBA
22689c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
2279483a578SDavid Brownell	select HAVE_CLK
228d72fbdf0SRussell King	select COMMON_CLKDEV
2294af6fee1SDeepak Saxena	select ICST525
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
2369483a578SDavid Brownell	select HAVE_CLK
237cf30fb4aSRussell King	select COMMON_CLKDEV
2384af6fee1SDeepak Saxena	select ICST307
23985802afeSCatalin Marinas	select GENERIC_TIME
240ae30ceacSCatalin Marinas	select GENERIC_CLOCKEVENTS
241eb7fffa3SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
2424af6fee1SDeepak Saxena	help
2434af6fee1SDeepak Saxena	  This enables support for ARM Ltd RealView boards.
2444af6fee1SDeepak Saxena
2454af6fee1SDeepak Saxenaconfig ARCH_VERSATILE
2464af6fee1SDeepak Saxena	bool "ARM Ltd. Versatile family"
2474af6fee1SDeepak Saxena	select ARM_AMBA
2484af6fee1SDeepak Saxena	select ARM_VIC
2499483a578SDavid Brownell	select HAVE_CLK
25071a06da0SRussell King	select COMMON_CLKDEV
2514af6fee1SDeepak Saxena	select ICST307
252b49c87c2SKevin Hilman	select GENERIC_TIME
25389df1272SKevin Hilman	select GENERIC_CLOCKEVENTS
254bbeddc43SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
2554af6fee1SDeepak Saxena	help
2564af6fee1SDeepak Saxena	  This enables support for ARM Ltd Versatile board.
2574af6fee1SDeepak Saxena
2588fc5ffa0SAndrew Victorconfig ARCH_AT91
2598fc5ffa0SAndrew Victor	bool "Atmel AT91"
2600a938b97SDavid Brownell	select GENERIC_GPIO
261f373e8c0SRyan Mallon	select ARCH_REQUIRE_GPIOLIB
26293686ae8SDavid Brownell	select HAVE_CLK
2634af6fee1SDeepak Saxena	help
2642b3b3516SAndrew Victor	  This enables support for systems based on the Atmel AT91RM9200,
2652b3b3516SAndrew Victor	  AT91SAM9 and AT91CAP9 processors.
2664af6fee1SDeepak Saxena
2671da177e4SLinus Torvaldsconfig ARCH_CLPS711X
2684af6fee1SDeepak Saxena	bool "Cirrus Logic CLPS711x/EP721x-based"
269c750815eSRussell King	select CPU_ARM720T
270f999b8bdSMartin Michlmayr	help
271f999b8bdSMartin Michlmayr	  Support for Cirrus Logic 711x/721x based boards.
2721da177e4SLinus Torvalds
273788c9700SRussell Kingconfig ARCH_GEMINI
274788c9700SRussell King	bool "Cortina Systems Gemini"
275788c9700SRussell King	select CPU_FA526
276788c9700SRussell King	select GENERIC_GPIO
277788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
278788c9700SRussell King	help
279788c9700SRussell King	  Support for the Cortina Systems Gemini family SoCs
280788c9700SRussell King
2811da177e4SLinus Torvaldsconfig ARCH_EBSA110
2821da177e4SLinus Torvalds	bool "EBSA-110"
283c750815eSRussell King	select CPU_SA110
284f7e68bbfSRussell King	select ISA
285c5eb2a2bSRussell King	select NO_IOPORT
2861da177e4SLinus Torvalds	help
2871da177e4SLinus Torvalds	  This is an evaluation board for the StrongARM processor available
288f6c8965aSMartin Michlmayr	  from Digital. It has limited hardware on-board, including an
2891da177e4SLinus Torvalds	  Ethernet interface, two PCMCIA sockets, two serial ports and a
2901da177e4SLinus Torvalds	  parallel port.
2911da177e4SLinus Torvalds
292e7736d47SLennert Buytenhekconfig ARCH_EP93XX
293e7736d47SLennert Buytenhek	bool "EP93xx-based"
294c750815eSRussell King	select CPU_ARM920T
295e7736d47SLennert Buytenhek	select ARM_AMBA
296e7736d47SLennert Buytenhek	select ARM_VIC
2974e9f9fd5SHerbert Valerio Riedel	select GENERIC_GPIO
2989483a578SDavid Brownell	select HAVE_CLK
299ae696fd5SRussell King	select COMMON_CLKDEV
3007444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
301eb33575cSMel Gorman	select ARCH_HAS_HOLES_MEMORYMODEL
302e7736d47SLennert Buytenhek	help
303e7736d47SLennert Buytenhek	  This enables support for the Cirrus EP93xx series of CPUs.
304e7736d47SLennert Buytenhek
3051da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE
3061da177e4SLinus Torvalds	bool "FootBridge"
307c750815eSRussell King	select CPU_SA110
3081da177e4SLinus Torvalds	select FOOTBRIDGE
309f999b8bdSMartin Michlmayr	help
310f999b8bdSMartin Michlmayr	  Support for systems based on the DC21285 companion chip
311f999b8bdSMartin Michlmayr	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
3121da177e4SLinus Torvalds
313788c9700SRussell Kingconfig ARCH_MXC
314788c9700SRussell King	bool "Freescale MXC/iMX-based"
315788c9700SRussell King	select GENERIC_TIME
316788c9700SRussell King	select GENERIC_CLOCKEVENTS
317788c9700SRussell King	select ARCH_MTD_XIP
318788c9700SRussell King	select GENERIC_GPIO
319788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
320a2ab67faSRussell King	select HAVE_CLK
321788c9700SRussell King	help
322788c9700SRussell King	  Support for Freescale MXC/iMX-based family of processors
323788c9700SRussell King
3247bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX
3257bd0f2f5Sdmitry pervushin	bool "Freescale STMP3xxx"
3267bd0f2f5Sdmitry pervushin	select CPU_ARM926T
3277bd0f2f5Sdmitry pervushin	select HAVE_CLK
3287bd0f2f5Sdmitry pervushin	select COMMON_CLKDEV
3297bd0f2f5Sdmitry pervushin	select ARCH_REQUIRE_GPIOLIB
3307bd0f2f5Sdmitry pervushin	select GENERIC_TIME
3317bd0f2f5Sdmitry pervushin	select GENERIC_CLOCKEVENTS
3327bd0f2f5Sdmitry pervushin	select GENERIC_GPIO
3337bd0f2f5Sdmitry pervushin	select USB_ARCH_HAS_EHCI
3347bd0f2f5Sdmitry pervushin	help
3357bd0f2f5Sdmitry pervushin	  Support for systems based on the Freescale 3xxx CPUs.
3367bd0f2f5Sdmitry pervushin
3374af6fee1SDeepak Saxenaconfig ARCH_NETX
3384af6fee1SDeepak Saxena	bool "Hilscher NetX based"
339c750815eSRussell King	select CPU_ARM926T
3404af6fee1SDeepak Saxena	select ARM_VIC
3412fcfe6b8SUwe Kleine-König	select GENERIC_CLOCKEVENTS
34221edecd3SUwe Kleine-König	select GENERIC_TIME
343f999b8bdSMartin Michlmayr	help
3444af6fee1SDeepak Saxena	  This enables support for systems based on the Hilscher NetX Soc
3454af6fee1SDeepak Saxena
3464af6fee1SDeepak Saxenaconfig ARCH_H720X
3474af6fee1SDeepak Saxena	bool "Hynix HMS720x-based"
348c750815eSRussell King	select CPU_ARM720T
3494af6fee1SDeepak Saxena	select ISA_DMA_API
3504af6fee1SDeepak Saxena	help
3514af6fee1SDeepak Saxena	  This enables support for systems based on the Hynix HMS720x
3524af6fee1SDeepak Saxena
35328ad94ecSAlessandro Rubiniconfig ARCH_NOMADIK
35428ad94ecSAlessandro Rubini	bool "STMicroelectronics Nomadik"
35528ad94ecSAlessandro Rubini	select ARM_AMBA
35628ad94ecSAlessandro Rubini	select ARM_VIC
35728ad94ecSAlessandro Rubini	select CPU_ARM926T
35828ad94ecSAlessandro Rubini	select HAVE_CLK
35928ad94ecSAlessandro Rubini	select COMMON_CLKDEV
36028ad94ecSAlessandro Rubini	select GENERIC_TIME
36128ad94ecSAlessandro Rubini	select GENERIC_CLOCKEVENTS
3622ec1d359SAlessandro Rubini	select GENERIC_GPIO
3632ec1d359SAlessandro Rubini	select ARCH_REQUIRE_GPIOLIB
36428ad94ecSAlessandro Rubini	help
36528ad94ecSAlessandro Rubini	  Support for the Nomadik platform by ST-Ericsson
36628ad94ecSAlessandro Rubini
3673b938be6SRussell Kingconfig ARCH_IOP13XX
3683b938be6SRussell King	bool "IOP13xx-based"
3693b938be6SRussell King	depends on MMU
370c750815eSRussell King	select CPU_XSC3
3713b938be6SRussell King	select PLAT_IOP
3723b938be6SRussell King	select PCI
3733b938be6SRussell King	select ARCH_SUPPORTS_MSI
3748d5796d2SLennert Buytenhek	select VMSPLIT_1G
3753b938be6SRussell King	help
3763b938be6SRussell King	  Support for Intel's IOP13XX (XScale) family of processors.
3773b938be6SRussell King
3783f7e5815SLennert Buytenhekconfig ARCH_IOP32X
3793f7e5815SLennert Buytenhek	bool "IOP32x-based"
380a4f7e763SRussell King	depends on MMU
381c750815eSRussell King	select CPU_XSCALE
3827ae1f7ecSLennert Buytenhek	select PLAT_IOP
383f7e68bbfSRussell King	select PCI
38463f385cdSArnaud Patard	select GENERIC_GPIO
385bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
386f999b8bdSMartin Michlmayr	help
3873f7e5815SLennert Buytenhek	  Support for Intel's 80219 and IOP32X (XScale) family of
3883f7e5815SLennert Buytenhek	  processors.
3893f7e5815SLennert Buytenhek
3903f7e5815SLennert Buytenhekconfig ARCH_IOP33X
3913f7e5815SLennert Buytenhek	bool "IOP33x-based"
3923f7e5815SLennert Buytenhek	depends on MMU
393c750815eSRussell King	select CPU_XSCALE
3947ae1f7ecSLennert Buytenhek	select PLAT_IOP
3953f7e5815SLennert Buytenhek	select PCI
39663f385cdSArnaud Patard	select GENERIC_GPIO
397bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
3983f7e5815SLennert Buytenhek	help
3993f7e5815SLennert Buytenhek	  Support for Intel's IOP33X (XScale) family of processors.
4001da177e4SLinus Torvalds
4013b938be6SRussell Kingconfig ARCH_IXP23XX
4023b938be6SRussell King 	bool "IXP23XX-based"
403588ef769SDan Williams	depends on MMU
404c750815eSRussell King	select CPU_XSC3
405285f5fa7SDan Williams 	select PCI
406285f5fa7SDan Williams	help
4073b938be6SRussell King	  Support for Intel's IXP23xx (XScale) family of processors.
4081da177e4SLinus Torvalds
4091da177e4SLinus Torvaldsconfig ARCH_IXP2000
4101da177e4SLinus Torvalds	bool "IXP2400/2800-based"
411a4f7e763SRussell King	depends on MMU
412c750815eSRussell King	select CPU_XSCALE
413f7e68bbfSRussell King	select PCI
414f999b8bdSMartin Michlmayr	help
415f999b8bdSMartin Michlmayr	  Support for Intel's IXP2400/2800 (XScale) family of processors.
4161da177e4SLinus Torvalds
4173b938be6SRussell Kingconfig ARCH_IXP4XX
4183b938be6SRussell King	bool "IXP4xx-based"
419a4f7e763SRussell King	depends on MMU
420c750815eSRussell King	select CPU_XSCALE
4218858e9afSMilan Svoboda	select GENERIC_GPIO
4223b938be6SRussell King	select GENERIC_TIME
4233b938be6SRussell King	select GENERIC_CLOCKEVENTS
424485bdde7SRussell King	select DMABOUNCE if PCI
425c4713074SLennert Buytenhek	help
4263b938be6SRussell King	  Support for Intel's IXP4XX (XScale) family of processors.
427c4713074SLennert Buytenhek
4281da177e4SLinus Torvaldsconfig ARCH_L7200
4291da177e4SLinus Torvalds	bool "LinkUp-L7200"
430c750815eSRussell King	select CPU_ARM720T
4311da177e4SLinus Torvalds	select FIQ
4321da177e4SLinus Torvalds	help
4331da177e4SLinus Torvalds	  Say Y here if you intend to run this kernel on a LinkUp Systems
4341da177e4SLinus Torvalds	  L7200 Software Development Board which uses an ARM720T processor.
4351da177e4SLinus Torvalds	  Information on this board can be obtained at:
4361da177e4SLinus Torvalds
4371da177e4SLinus Torvalds	  <http://www.linkupsys.com/>
4381da177e4SLinus Torvalds
4391da177e4SLinus Torvalds	  If you have any questions or comments about the Linux kernel port
4401da177e4SLinus Torvalds	  to this board, send e-mail to <sjhill@cotw.com>.
4411da177e4SLinus Torvalds
442edabd38eSSaeed Bisharaconfig ARCH_DOVE
443edabd38eSSaeed Bishara	bool "Marvell Dove"
444edabd38eSSaeed Bishara	select PCI
445edabd38eSSaeed Bishara	select GENERIC_GPIO
446edabd38eSSaeed Bishara	select ARCH_REQUIRE_GPIOLIB
447edabd38eSSaeed Bishara	select GENERIC_TIME
448edabd38eSSaeed Bishara	select GENERIC_CLOCKEVENTS
449edabd38eSSaeed Bishara	select PLAT_ORION
450edabd38eSSaeed Bishara	help
451edabd38eSSaeed Bishara	  Support for the Marvell Dove SoC 88AP510
452edabd38eSSaeed Bishara
453651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD
454651c74c7SSaeed Bishara	bool "Marvell Kirkwood"
455c750815eSRussell King	select CPU_FEROCEON
456651c74c7SSaeed Bishara	select PCI
4574c213430SLennert Buytenhek	select GENERIC_GPIO
458a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
459651c74c7SSaeed Bishara	select GENERIC_TIME
460651c74c7SSaeed Bishara	select GENERIC_CLOCKEVENTS
461651c74c7SSaeed Bishara	select PLAT_ORION
462651c74c7SSaeed Bishara	help
463651c74c7SSaeed Bishara	  Support for the following Marvell Kirkwood series SoCs:
464651c74c7SSaeed Bishara	  88F6180, 88F6192 and 88F6281.
465651c74c7SSaeed Bishara
466788c9700SRussell Kingconfig ARCH_LOKI
467788c9700SRussell King	bool "Marvell Loki (88RC8480)"
468788c9700SRussell King	select CPU_FEROCEON
469788c9700SRussell King	select GENERIC_TIME
470788c9700SRussell King	select GENERIC_CLOCKEVENTS
471788c9700SRussell King	select PLAT_ORION
472788c9700SRussell King	help
473788c9700SRussell King	  Support for the Marvell Loki (88RC8480) SoC.
474788c9700SRussell King
475788c9700SRussell Kingconfig ARCH_MV78XX0
476788c9700SRussell King	bool "Marvell MV78xx0"
477788c9700SRussell King	select CPU_FEROCEON
478788c9700SRussell King	select PCI
479788c9700SRussell King	select GENERIC_GPIO
480a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
481788c9700SRussell King	select GENERIC_TIME
482788c9700SRussell King	select GENERIC_CLOCKEVENTS
483788c9700SRussell King	select PLAT_ORION
484788c9700SRussell King	help
485788c9700SRussell King	  Support for the following Marvell MV78xx0 series SoCs:
486788c9700SRussell King	  MV781x0, MV782x0.
487788c9700SRussell King
488788c9700SRussell Kingconfig ARCH_ORION5X
489788c9700SRussell King	bool "Marvell Orion"
490788c9700SRussell King	depends on MMU
491788c9700SRussell King	select CPU_FEROCEON
492788c9700SRussell King	select PCI
493788c9700SRussell King	select GENERIC_GPIO
494a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
495788c9700SRussell King	select GENERIC_TIME
496788c9700SRussell King	select GENERIC_CLOCKEVENTS
497788c9700SRussell King	select PLAT_ORION
498788c9700SRussell King	help
499788c9700SRussell King	  Support for the following Marvell Orion 5x series SoCs:
500788c9700SRussell King	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
501788c9700SRussell King	  Orion-2 (5281), Orion-1-90 (6183).
502788c9700SRussell King
503788c9700SRussell Kingconfig ARCH_MMP
504788c9700SRussell King	bool "Marvell PXA168/910"
505788c9700SRussell King	depends on MMU
506788c9700SRussell King	select GENERIC_GPIO
507788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
508788c9700SRussell King	select HAVE_CLK
509788c9700SRussell King	select COMMON_CLKDEV
510788c9700SRussell King	select GENERIC_TIME
511788c9700SRussell King	select GENERIC_CLOCKEVENTS
512788c9700SRussell King	select TICK_ONESHOT
513788c9700SRussell King	select PLAT_PXA
514788c9700SRussell King	help
515788c9700SRussell King	  Support for Marvell's PXA168/910 processor line.
516788c9700SRussell King
517c53c9cf6SAndrew Victorconfig ARCH_KS8695
518c53c9cf6SAndrew Victor	bool "Micrel/Kendin KS8695"
519c750815eSRussell King	select CPU_ARM922T
5208a87a996SAndrew Victor	select GENERIC_GPIO
52172880ad8SDaniel Silverstone        select ARCH_REQUIRE_GPIOLIB
522c53c9cf6SAndrew Victor	help
523c53c9cf6SAndrew Victor	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
524c53c9cf6SAndrew Victor	  System-on-Chip devices.
525c53c9cf6SAndrew Victor
5269918cda5SUwe Kleine-Königconfig ARCH_NS9XXX
5279918cda5SUwe Kleine-König	bool "NetSilicon NS9xxx"
528c750815eSRussell King	select CPU_ARM926T
529689f2a01SUwe Kleine-König	select GENERIC_GPIO
530cef5975dSUwe Kleine-König	select GENERIC_TIME
531c0bb87f7SUwe Kleine-König	select GENERIC_CLOCKEVENTS
5329483a578SDavid Brownell	select HAVE_CLK
5339918cda5SUwe Kleine-König	help
5349918cda5SUwe Kleine-König	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
5359918cda5SUwe Kleine-König	  System.
5369918cda5SUwe Kleine-König
5379918cda5SUwe Kleine-König	  <http://www.digi.com/products/microprocessors/index.jsp>
5389918cda5SUwe Kleine-König
539788c9700SRussell Kingconfig ARCH_W90X900
540788c9700SRussell King	bool "Nuvoton W90X900 CPU"
541788c9700SRussell King	select CPU_ARM926T
542c52d3d68Swanzongshun	select ARCH_REQUIRE_GPIOLIB
543c52d3d68Swanzongshun	select GENERIC_GPIO
544d2c24195Swanzongshun	select HAVE_CLK
5450e4a34bbSwanzongshun	select COMMON_CLKDEV
54658b5369eSwanzongshun	select GENERIC_TIME
54758b5369eSwanzongshun	select GENERIC_CLOCKEVENTS
548777f9bebSLennert Buytenhek	help
549a8bc4eadSwanzongshun	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
550a8bc4eadSwanzongshun	  At present, the w90x900 has been renamed nuc900, regarding
551a8bc4eadSwanzongshun	  the ARM series product line, you can login the following
552a8bc4eadSwanzongshun	  link address to know more.
553a8bc4eadSwanzongshun
554a8bc4eadSwanzongshun	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
555a8bc4eadSwanzongshun		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
556585cf175STzachi Perelstein
5574af6fee1SDeepak Saxenaconfig ARCH_PNX4008
5584af6fee1SDeepak Saxena	bool "Philips Nexperia PNX4008 Mobile"
559c750815eSRussell King	select CPU_ARM926T
5609483a578SDavid Brownell	select HAVE_CLK
5614af6fee1SDeepak Saxena	help
5624af6fee1SDeepak Saxena	  This enables support for Philips PNX4008 mobile platform.
5634af6fee1SDeepak Saxena
5641da177e4SLinus Torvaldsconfig ARCH_PXA
5652c8086a5Seric miao	bool "PXA2xx/PXA3xx-based"
566a4f7e763SRussell King	depends on MMU
567034d2f5aSAl Viro	select ARCH_MTD_XIP
56889c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
5690a938b97SDavid Brownell	select GENERIC_GPIO
5709483a578SDavid Brownell	select HAVE_CLK
5718c3abc7dSRussell King	select COMMON_CLKDEV
5727444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
57345cf5eefSNicolas Pitre	select GENERIC_TIME
574981d0f39SEric Miao	select GENERIC_CLOCKEVENTS
575a88264c2SRussell King	select TICK_ONESHOT
576bd5ce433SEric Miao	select PLAT_PXA
577f999b8bdSMartin Michlmayr	help
5782c8086a5Seric miao	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
5791da177e4SLinus Torvalds
580788c9700SRussell Kingconfig ARCH_MSM
581788c9700SRussell King	bool "Qualcomm MSM"
582788c9700SRussell King	select CPU_V6
58349cbe786SEric Miao	select GENERIC_TIME
58449cbe786SEric Miao	select GENERIC_CLOCKEVENTS
58549cbe786SEric Miao	help
586788c9700SRussell King	  Support for Qualcomm MSM7K based systems.  This runs on the ARM11
587788c9700SRussell King	  apps processor of the MSM7K and depends on a shared memory
588788c9700SRussell King	  interface to the ARM9 modem processor which runs the baseband stack
589788c9700SRussell King	  and controls some vital subsystems (clock and power control, etc).
59049cbe786SEric Miao
5911da177e4SLinus Torvaldsconfig ARCH_RPC
5921da177e4SLinus Torvalds	bool "RiscPC"
5931da177e4SLinus Torvalds	select ARCH_ACORN
5941da177e4SLinus Torvalds	select FIQ
5951da177e4SLinus Torvalds	select TIMER_ACORN
596a08b6b79Sviro@ZenIV.linux.org.uk	select ARCH_MAY_HAVE_PC_FDC
597341eb781SBen Dooks	select HAVE_PATA_PLATFORM
598065909b9SRussell King	select ISA_DMA_API
5995ea81769SAl Viro	select NO_IOPORT
60007f841b7SRussell King	select ARCH_SPARSEMEM_ENABLE
6011da177e4SLinus Torvalds	help
6021da177e4SLinus Torvalds	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
6031da177e4SLinus Torvalds	  CD-ROM interface, serial and parallel port, and the floppy drive.
6041da177e4SLinus Torvalds
6051da177e4SLinus Torvaldsconfig ARCH_SA1100
6061da177e4SLinus Torvalds	bool "SA1100-based"
607c750815eSRussell King	select CPU_SA1100
608f7e68bbfSRussell King	select ISA
60905944d74SRussell King	select ARCH_SPARSEMEM_ENABLE
610034d2f5aSAl Viro	select ARCH_MTD_XIP
61189c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
6121937f5b9SRussell King	select CPU_FREQ
6130a938b97SDavid Brownell	select GENERIC_GPIO
614d142b6e7SRussell King	select GENERIC_TIME
6153e238be2SRussell King	select GENERIC_CLOCKEVENTS
6169483a578SDavid Brownell	select HAVE_CLK
6173e238be2SRussell King	select TICK_ONESHOT
6187444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
619f999b8bdSMartin Michlmayr	help
620f999b8bdSMartin Michlmayr	  Support for StrongARM 11x0 based boards.
6211da177e4SLinus Torvalds
6221da177e4SLinus Torvaldsconfig ARCH_S3C2410
623e4d06e39SBen Dooks	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
6240a938b97SDavid Brownell	select GENERIC_GPIO
6259d56c02aSBen Dooks	select ARCH_HAS_CPUFREQ
6269483a578SDavid Brownell	select HAVE_CLK
6271da177e4SLinus Torvalds	help
6281da177e4SLinus Torvalds	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
6291da177e4SLinus Torvalds	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
630f6c8965aSMartin Michlmayr	  the Samsung SMDK2410 development board (and derivatives).
6311da177e4SLinus Torvalds
632a08ab637SBen Dooksconfig ARCH_S3C64XX
633a08ab637SBen Dooks	bool "Samsung S3C64XX"
634a08ab637SBen Dooks	select GENERIC_GPIO
635a08ab637SBen Dooks	select HAVE_CLK
63689c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
637a08ab637SBen Dooks	help
638a08ab637SBen Dooks	  Samsung S3C64XX series based systems
639a08ab637SBen Dooks
6405a7652f2SByungho Minconfig ARCH_S5PC1XX
6415a7652f2SByungho Min	bool "Samsung S5PC1XX"
6425a7652f2SByungho Min	select GENERIC_GPIO
6435a7652f2SByungho Min	select HAVE_CLK
6445a7652f2SByungho Min	select CPU_V7
6455a7652f2SByungho Min	help
6465a7652f2SByungho Min	  Samsung S5PC1XX series based systems
6475a7652f2SByungho Min
6481da177e4SLinus Torvaldsconfig ARCH_SHARK
6491da177e4SLinus Torvalds	bool "Shark"
650c750815eSRussell King	select CPU_SA110
651f7e68bbfSRussell King	select ISA
652f7e68bbfSRussell King	select ISA_DMA
6533bca103aSNicolas Pitre	select ZONE_DMA
654f7e68bbfSRussell King	select PCI
655f999b8bdSMartin Michlmayr	help
656f999b8bdSMartin Michlmayr	  Support for the StrongARM based Digital DNARD machine, also known
657f999b8bdSMartin Michlmayr	  as "Shark" (<http://www.shark-linux.de/shark.html>).
6581da177e4SLinus Torvalds
6591da177e4SLinus Torvaldsconfig ARCH_LH7A40X
6601da177e4SLinus Torvalds	bool "Sharp LH7A40X"
661c750815eSRussell King	select CPU_ARM922T
6624ba3f7c5SRussell King	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
6634ba3f7c5SRussell King	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
6641da177e4SLinus Torvalds	help
6651da177e4SLinus Torvalds	  Say Y here for systems based on one of the Sharp LH7A40X
6661da177e4SLinus Torvalds	  System on a Chip processors.  These CPUs include an ARM922T
6671da177e4SLinus Torvalds	  core with a wide array of integrated devices for
6681da177e4SLinus Torvalds	  hand-held and low-power applications.
6691da177e4SLinus Torvalds
670d98aac75SLinus Walleijconfig ARCH_U300
671d98aac75SLinus Walleij	bool "ST-Ericsson U300 Series"
672d98aac75SLinus Walleij	depends on MMU
673d98aac75SLinus Walleij	select CPU_ARM926T
674bc581770SLinus Walleij	select HAVE_TCM
675d98aac75SLinus Walleij	select ARM_AMBA
676d98aac75SLinus Walleij	select ARM_VIC
677d98aac75SLinus Walleij	select GENERIC_TIME
678d98aac75SLinus Walleij	select GENERIC_CLOCKEVENTS
679d98aac75SLinus Walleij	select HAVE_CLK
680d98aac75SLinus Walleij	select COMMON_CLKDEV
681d98aac75SLinus Walleij	select GENERIC_GPIO
682d98aac75SLinus Walleij	help
683d98aac75SLinus Walleij	  Support for ST-Ericsson U300 series mobile platforms.
684d98aac75SLinus Walleij
6857c6337e2SKevin Hilmanconfig ARCH_DAVINCI
6867c6337e2SKevin Hilman	bool "TI DaVinci"
687c750815eSRussell King	select CPU_ARM926T
6887c6337e2SKevin Hilman	select GENERIC_TIME
6897c6337e2SKevin Hilman	select GENERIC_CLOCKEVENTS
6903d9edf09SVladimir Barinov	select GENERIC_GPIO
691dce1115bSDavid Brownell	select ARCH_REQUIRE_GPIOLIB
6929483a578SDavid Brownell	select HAVE_CLK
6933bca103aSNicolas Pitre	select ZONE_DMA
6949232fcc9SKevin Hilman	select HAVE_IDE
695c5b736d0SKevin Hilman	select COMMON_CLKDEV
69620e9969bSDavid Brownell	select GENERIC_ALLOCATOR
697ae88e05aSSekhar Nori	select ARCH_HAS_HOLES_MEMORYMODEL
6987c6337e2SKevin Hilman	help
6997c6337e2SKevin Hilman	  Support for TI's DaVinci platform.
7007c6337e2SKevin Hilman
7013b938be6SRussell Kingconfig ARCH_OMAP
7023b938be6SRussell King	bool "TI OMAP"
7033b938be6SRussell King	select GENERIC_GPIO
7049483a578SDavid Brownell	select HAVE_CLK
7057444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
70689c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
7073b938be6SRussell King	select GENERIC_TIME
70806cad098SKevin Hilman	select GENERIC_CLOCKEVENTS
7093b938be6SRussell King	help
7103b938be6SRussell King	  Support for TI's OMAP platform (OMAP1 and OMAP2).
7113b938be6SRussell King
7126288e28dSLeo Chenconfig ARCH_BCMRING
7136288e28dSLeo Chen	bool "Broadcom BCMRING"
7146288e28dSLeo Chen	depends on MMU
7156288e28dSLeo Chen	select CPU_V6
7166288e28dSLeo Chen	select ARM_AMBA
7176288e28dSLeo Chen	select COMMON_CLKDEV
7186288e28dSLeo Chen	select GENERIC_TIME
7196288e28dSLeo Chen	select GENERIC_CLOCKEVENTS
7206288e28dSLeo Chen	select ARCH_WANT_OPTIONAL_GPIOLIB
7216288e28dSLeo Chen	help
7226288e28dSLeo Chen	  Support for Broadcom's BCMRing platform.
7236288e28dSLeo Chen
724850265e8SSrinidhi Kasagarconfig ARCH_U8500
725850265e8SSrinidhi Kasagar	bool "ST-Ericsson U8500 Series"
726850265e8SSrinidhi Kasagar	select CPU_V7
727850265e8SSrinidhi Kasagar	select ARM_AMBA
728850265e8SSrinidhi Kasagar	select GENERIC_TIME
729850265e8SSrinidhi Kasagar	select GENERIC_CLOCKEVENTS
730850265e8SSrinidhi Kasagar	select COMMON_CLKDEV
731850265e8SSrinidhi Kasagar	help
732850265e8SSrinidhi Kasagar	  Support for ST-Ericsson's Ux500 architecture
733850265e8SSrinidhi Kasagar
7341da177e4SLinus Torvaldsendchoice
7351da177e4SLinus Torvalds
7361da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig"
7371da177e4SLinus Torvalds
738e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig"
739e7736d47SLennert Buytenhek
7401da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig"
7411da177e4SLinus Torvalds
74259d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig"
74359d3a193SPaulius Zaleckas
7441da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig"
7451da177e4SLinus Torvalds
7463f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig"
7473f7e5815SLennert Buytenhek
7483f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig"
7491da177e4SLinus Torvalds
750285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig"
751285f5fa7SDan Williams
7521da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig"
7531da177e4SLinus Torvalds
7541da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig"
7551da177e4SLinus Torvalds
756c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig"
757c4713074SLennert Buytenhek
758777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig"
759777f9bebSLennert Buytenhek
760794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig"
761794d15b2SStanislav Samsonov
7621da177e4SLinus Torvaldssource "arch/arm/mach-pxa/Kconfig"
763bd5ce433SEric Miaosource "arch/arm/plat-pxa/Kconfig"
7641da177e4SLinus Torvalds
76549cbe786SEric Miaosource "arch/arm/mach-mmp/Kconfig"
76649cbe786SEric Miao
7671da177e4SLinus Torvaldssource "arch/arm/mach-sa1100/Kconfig"
7681da177e4SLinus Torvalds
769d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig"
770d48af15eSTony Lindgren
771d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig"
7721da177e4SLinus Torvalds
7731dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig"
7741dbae815STony Lindgren
7759dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig"
776585cf175STzachi Perelstein
777651c74c7SSaeed Bisharasource "arch/arm/mach-kirkwood/Kconfig"
7781da177e4SLinus Torvalds
779edabd38eSSaeed Bisharasource "arch/arm/mach-dove/Kconfig"
780edabd38eSSaeed Bishara
781cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig"
782a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig"
783a08ab637SBen Dookssource "arch/arm/plat-s3c64xx/Kconfig"
784d58153d8SBen Dookssource "arch/arm/plat-s3c/Kconfig"
7855a7652f2SByungho Minsource "arch/arm/plat-s5pc1xx/Kconfig"
786a21765a7SBen Dooks
787a21765a7SBen Dooksif ARCH_S3C2410
788a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig"
7891da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig"
790a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig"
791a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig"
792a21765a7SBen Dookssource "arch/arm/mach-s3c2442/Kconfig"
793e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig"
794a21765a7SBen Dooksendif
7951da177e4SLinus Torvalds
796a08ab637SBen Dooksif ARCH_S3C64XX
797a08ab637SBen Dookssource "arch/arm/mach-s3c6400/Kconfig"
798a08ab637SBen Dookssource "arch/arm/mach-s3c6410/Kconfig"
799a08ab637SBen Dooksendif
800a08ab637SBen Dooks
8017bd0f2f5Sdmitry pervushinsource "arch/arm/plat-stmp3xxx/Kconfig"
8027bd0f2f5Sdmitry pervushin
8035a7652f2SByungho Minif ARCH_S5PC1XX
8045a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig"
8055a7652f2SByungho Minendif
8065a7652f2SByungho Min
8071da177e4SLinus Torvaldssource "arch/arm/mach-lh7a40x/Kconfig"
8081da177e4SLinus Torvalds
8091da177e4SLinus Torvaldssource "arch/arm/mach-h720x/Kconfig"
8101da177e4SLinus Torvalds
8111da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig"
8121da177e4SLinus Torvalds
813038c5b60SBellido Nicolassource "arch/arm/mach-aaec2000/Kconfig"
814038c5b60SBellido Nicolas
8158ad68bbfSCatalin Marinassource "arch/arm/mach-realview/Kconfig"
8168ad68bbfSCatalin Marinas
8179d041268SAndrew Victorsource "arch/arm/mach-at91/Kconfig"
81873a59c1cSSAN People
81952c543f9SQuinn Jensensource "arch/arm/plat-mxc/Kconfig"
82052c543f9SQuinn Jensen
82128ad94ecSAlessandro Rubinisource "arch/arm/mach-nomadik/Kconfig"
82259b559d7SSrinidhi Kasagarsource "arch/arm/plat-nomadik/Kconfig"
82328ad94ecSAlessandro Rubini
824bb6d8c88SSascha Hauersource "arch/arm/mach-netx/Kconfig"
825bb6d8c88SSascha Hauer
8269918cda5SUwe Kleine-Königsource "arch/arm/mach-ns9xxx/Kconfig"
8279918cda5SUwe Kleine-König
8287c6337e2SKevin Hilmansource "arch/arm/mach-davinci/Kconfig"
8297c6337e2SKevin Hilman
830c53c9cf6SAndrew Victorsource "arch/arm/mach-ks8695/Kconfig"
831c53c9cf6SAndrew Victor
8329e73c84cSBrian Swetlandsource "arch/arm/mach-msm/Kconfig"
8339e73c84cSBrian Swetland
834d98aac75SLinus Walleijsource "arch/arm/mach-u300/Kconfig"
835d98aac75SLinus Walleij
8367ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig"
8377ec80ddfSwanzongshun
8386288e28dSLeo Chensource "arch/arm/mach-bcmring/Kconfig"
8396288e28dSLeo Chen
840850265e8SSrinidhi Kasagarsource "arch/arm/mach-ux500/Kconfig"
841850265e8SSrinidhi Kasagar
8421da177e4SLinus Torvalds# Definitions to make life easier
8431da177e4SLinus Torvaldsconfig ARCH_ACORN
8441da177e4SLinus Torvalds	bool
8451da177e4SLinus Torvalds
8467ae1f7ecSLennert Buytenhekconfig PLAT_IOP
8477ae1f7ecSLennert Buytenhek	bool
848469d3044SMikael Pettersson	select GENERIC_CLOCKEVENTS
849980f2296SMikael Pettersson	select GENERIC_TIME
8507ae1f7ecSLennert Buytenhek
85169b02f6aSLennert Buytenhekconfig PLAT_ORION
85269b02f6aSLennert Buytenhek	bool
85369b02f6aSLennert Buytenhek
854bd5ce433SEric Miaoconfig PLAT_PXA
855bd5ce433SEric Miao	bool
856bd5ce433SEric Miao
8571da177e4SLinus Torvaldssource arch/arm/mm/Kconfig
8581da177e4SLinus Torvalds
859afe4b25eSLennert Buytenhekconfig IWMMXT
860afe4b25eSLennert Buytenhek	bool "Enable iWMMXt support"
86140305a58SEric Miao	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
86240305a58SEric Miao	default y if PXA27x || PXA3xx || ARCH_MMP
863afe4b25eSLennert Buytenhek	help
864afe4b25eSLennert Buytenhek	  Enable support for iWMMXt context switching at run time if
865afe4b25eSLennert Buytenhek	  running on a CPU that supports it.
866afe4b25eSLennert Buytenhek
8671da177e4SLinus Torvalds#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
8681da177e4SLinus Torvaldsconfig XSCALE_PMU
8691da177e4SLinus Torvalds	bool
8701da177e4SLinus Torvalds	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
8711da177e4SLinus Torvalds	default y
8721da177e4SLinus Torvalds
8733b93e7b0SHyok S. Choiif !MMU
8743b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu"
8753b93e7b0SHyok S. Choiendif
8763b93e7b0SHyok S. Choi
8779cba3cccSCatalin Marinasconfig ARM_ERRATA_411920
8789cba3cccSCatalin Marinas	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
8799cba3cccSCatalin Marinas	depends on CPU_V6 && !SMP
8809cba3cccSCatalin Marinas	help
8819cba3cccSCatalin Marinas	  Invalidation of the Instruction Cache operation can
8829cba3cccSCatalin Marinas	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
8839cba3cccSCatalin Marinas	  It does not affect the MPCore. This option enables the ARM Ltd.
8849cba3cccSCatalin Marinas	  recommended workaround.
8859cba3cccSCatalin Marinas
8867ce236fcSCatalin Marinasconfig ARM_ERRATA_430973
8877ce236fcSCatalin Marinas	bool "ARM errata: Stale prediction on replaced interworking branch"
8887ce236fcSCatalin Marinas	depends on CPU_V7
8897ce236fcSCatalin Marinas	help
8907ce236fcSCatalin Marinas	  This option enables the workaround for the 430973 Cortex-A8
8917ce236fcSCatalin Marinas	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
8927ce236fcSCatalin Marinas	  interworking branch is replaced with another code sequence at the
8937ce236fcSCatalin Marinas	  same virtual address, whether due to self-modifying code or virtual
8947ce236fcSCatalin Marinas	  to physical address re-mapping, Cortex-A8 does not recover from the
8957ce236fcSCatalin Marinas	  stale interworking branch prediction. This results in Cortex-A8
8967ce236fcSCatalin Marinas	  executing the new code sequence in the incorrect ARM or Thumb state.
8977ce236fcSCatalin Marinas	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
8987ce236fcSCatalin Marinas	  and also flushes the branch target cache at every context switch.
8997ce236fcSCatalin Marinas	  Note that setting specific bits in the ACTLR register may not be
9007ce236fcSCatalin Marinas	  available in non-secure mode.
9017ce236fcSCatalin Marinas
902855c551fSCatalin Marinasconfig ARM_ERRATA_458693
903855c551fSCatalin Marinas	bool "ARM errata: Processor deadlock when a false hazard is created"
904855c551fSCatalin Marinas	depends on CPU_V7
905855c551fSCatalin Marinas	help
906855c551fSCatalin Marinas	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
907855c551fSCatalin Marinas	  erratum. For very specific sequences of memory operations, it is
908855c551fSCatalin Marinas	  possible for a hazard condition intended for a cache line to instead
909855c551fSCatalin Marinas	  be incorrectly associated with a different cache line. This false
910855c551fSCatalin Marinas	  hazard might then cause a processor deadlock. The workaround enables
911855c551fSCatalin Marinas	  the L1 caching of the NEON accesses and disables the PLD instruction
912855c551fSCatalin Marinas	  in the ACTLR register. Note that setting specific bits in the ACTLR
913855c551fSCatalin Marinas	  register may not be available in non-secure mode.
914855c551fSCatalin Marinas
9150516e464SCatalin Marinasconfig ARM_ERRATA_460075
9160516e464SCatalin Marinas	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
9170516e464SCatalin Marinas	depends on CPU_V7
9180516e464SCatalin Marinas	help
9190516e464SCatalin Marinas	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
9200516e464SCatalin Marinas	  erratum. Any asynchronous access to the L2 cache may encounter a
9210516e464SCatalin Marinas	  situation in which recent store transactions to the L2 cache are lost
9220516e464SCatalin Marinas	  and overwritten with stale memory contents from external memory. The
9230516e464SCatalin Marinas	  workaround disables the write-allocate mode for the L2 cache via the
9240516e464SCatalin Marinas	  ACTLR register. Note that setting specific bits in the ACTLR register
9250516e464SCatalin Marinas	  may not be available in non-secure mode.
9260516e464SCatalin Marinas
927*9e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369
928*9e65582aSSantosh Shilimkar	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
929*9e65582aSSantosh Shilimkar	depends on CACHE_L2X0 && ARCH_OMAP4
930*9e65582aSSantosh Shilimkar	help
931*9e65582aSSantosh Shilimkar	   The PL310 L2 cache controller implements three types of Clean &
932*9e65582aSSantosh Shilimkar	   Invalidate maintenance operations: by Physical Address
933*9e65582aSSantosh Shilimkar	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
934*9e65582aSSantosh Shilimkar	   They are architecturally defined to behave as the execution of a
935*9e65582aSSantosh Shilimkar	   clean operation followed immediately by an invalidate operation,
936*9e65582aSSantosh Shilimkar	   both performing to the same memory location. This functionality
937*9e65582aSSantosh Shilimkar	   is not correctly implemented in PL310 as clean lines are not
938*9e65582aSSantosh Shilimkar	   invalidated as a result of these operations. Note that this errata
939*9e65582aSSantosh Shilimkar	   uses Texas Instrument's secure monitor api.
9401da177e4SLinus Torvaldsendmenu
9411da177e4SLinus Torvalds
9421da177e4SLinus Torvaldssource "arch/arm/common/Kconfig"
9431da177e4SLinus Torvalds
9441da177e4SLinus Torvaldsconfig FORCE_MAX_ZONEORDER
9451da177e4SLinus Torvalds	int
9461da177e4SLinus Torvalds	depends on SA1111
9471da177e4SLinus Torvalds	default "9"
9481da177e4SLinus Torvalds
9491da177e4SLinus Torvaldsmenu "Bus support"
9501da177e4SLinus Torvalds
9511da177e4SLinus Torvaldsconfig ARM_AMBA
9521da177e4SLinus Torvalds	bool
9531da177e4SLinus Torvalds
9541da177e4SLinus Torvaldsconfig ISA
9551da177e4SLinus Torvalds	bool
9561da177e4SLinus Torvalds	help
9571da177e4SLinus Torvalds	  Find out whether you have ISA slots on your motherboard.  ISA is the
9581da177e4SLinus Torvalds	  name of a bus system, i.e. the way the CPU talks to the other stuff
9591da177e4SLinus Torvalds	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
9601da177e4SLinus Torvalds	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
9611da177e4SLinus Torvalds	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
9621da177e4SLinus Torvalds
963065909b9SRussell King# Select ISA DMA controller support
9641da177e4SLinus Torvaldsconfig ISA_DMA
9651da177e4SLinus Torvalds	bool
966065909b9SRussell King	select ISA_DMA_API
9671da177e4SLinus Torvalds
968065909b9SRussell King# Select ISA DMA interface
9695cae841bSAl Viroconfig ISA_DMA_API
9705cae841bSAl Viro	bool
9715cae841bSAl Viro
9721da177e4SLinus Torvaldsconfig PCI
973a0113a99SMike Rapoport	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
9741da177e4SLinus Torvalds	help
9751da177e4SLinus Torvalds	  Find out whether you have a PCI motherboard. PCI is the name of a
9761da177e4SLinus Torvalds	  bus system, i.e. the way the CPU talks to the other stuff inside
9771da177e4SLinus Torvalds	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
9781da177e4SLinus Torvalds	  VESA. If you have PCI, say Y, otherwise N.
9791da177e4SLinus Torvalds
98036e23590SMatthew Wilcoxconfig PCI_SYSCALL
98136e23590SMatthew Wilcox	def_bool PCI
98236e23590SMatthew Wilcox
9831da177e4SLinus Torvalds# Select the host bridge type
9841da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505
9851da177e4SLinus Torvalds	bool
9861da177e4SLinus Torvalds	depends on PCI && ARCH_SHARK
9871da177e4SLinus Torvalds	default y
9881da177e4SLinus Torvalds
989a0113a99SMike Rapoportconfig PCI_HOST_ITE8152
990a0113a99SMike Rapoport	bool
991a0113a99SMike Rapoport	depends on PCI && MACH_ARMCORE
992a0113a99SMike Rapoport	default y
993a0113a99SMike Rapoport	select DMABOUNCE
994a0113a99SMike Rapoport
9951da177e4SLinus Torvaldssource "drivers/pci/Kconfig"
9961da177e4SLinus Torvalds
9971da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig"
9981da177e4SLinus Torvalds
9991da177e4SLinus Torvaldsendmenu
10001da177e4SLinus Torvalds
10011da177e4SLinus Torvaldsmenu "Kernel Features"
10021da177e4SLinus Torvalds
10030567a0c0SKevin Hilmansource "kernel/time/Kconfig"
10040567a0c0SKevin Hilman
10051da177e4SLinus Torvaldsconfig SMP
10061da177e4SLinus Torvalds	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
100742578c82SRussell King	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
1008850265e8SSrinidhi Kasagar		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1009bc28248eSRussell King	depends on GENERIC_CLOCKEVENTS
1010f6dd9fa5SJens Axboe	select USE_GENERIC_SMP_HELPERS
1011850265e8SSrinidhi Kasagar	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
10121da177e4SLinus Torvalds	help
10131da177e4SLinus Torvalds	  This enables support for systems with more than one CPU. If you have
10141da177e4SLinus Torvalds	  a system with only one CPU, like most personal computers, say N. If
10151da177e4SLinus Torvalds	  you have a system with more than one CPU, say Y.
10161da177e4SLinus Torvalds
10171da177e4SLinus Torvalds	  If you say N here, the kernel will run on single and multiprocessor
10181da177e4SLinus Torvalds	  machines, but will use only one CPU of a multiprocessor machine. If
10191da177e4SLinus Torvalds	  you say Y here, the kernel will run on many, but not all, single
10201da177e4SLinus Torvalds	  processor machines. On a single processor machine, the kernel will
10211da177e4SLinus Torvalds	  run faster if you say N here.
10221da177e4SLinus Torvalds
102303502faaSAdrian Bunk	  See also <file:Documentation/i386/IO-APIC.txt>,
10241da177e4SLinus Torvalds	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
10251da177e4SLinus Torvalds	  <http://www.linuxdoc.org/docs.html#howto>.
10261da177e4SLinus Torvalds
10271da177e4SLinus Torvalds	  If you don't know what to do here, say N.
10281da177e4SLinus Torvalds
1029a8cbcd92SRussell Kingconfig HAVE_ARM_SCU
1030a8cbcd92SRussell King	bool
1031a8cbcd92SRussell King	depends on SMP
1032a8cbcd92SRussell King	help
1033a8cbcd92SRussell King	  This option enables support for the ARM system coherency unit
1034a8cbcd92SRussell King
1035f32f4ce2SRussell Kingconfig HAVE_ARM_TWD
1036f32f4ce2SRussell King	bool
1037f32f4ce2SRussell King	depends on SMP
1038f32f4ce2SRussell King	help
1039f32f4ce2SRussell King	  This options enables support for the ARM timer and watchdog unit
1040f32f4ce2SRussell King
10418d5796d2SLennert Buytenhekchoice
10428d5796d2SLennert Buytenhek	prompt "Memory split"
10438d5796d2SLennert Buytenhek	default VMSPLIT_3G
10448d5796d2SLennert Buytenhek	help
10458d5796d2SLennert Buytenhek	  Select the desired split between kernel and user memory.
10468d5796d2SLennert Buytenhek
10478d5796d2SLennert Buytenhek	  If you are not absolutely sure what you are doing, leave this
10488d5796d2SLennert Buytenhek	  option alone!
10498d5796d2SLennert Buytenhek
10508d5796d2SLennert Buytenhek	config VMSPLIT_3G
10518d5796d2SLennert Buytenhek		bool "3G/1G user/kernel split"
10528d5796d2SLennert Buytenhek	config VMSPLIT_2G
10538d5796d2SLennert Buytenhek		bool "2G/2G user/kernel split"
10548d5796d2SLennert Buytenhek	config VMSPLIT_1G
10558d5796d2SLennert Buytenhek		bool "1G/3G user/kernel split"
10568d5796d2SLennert Buytenhekendchoice
10578d5796d2SLennert Buytenhek
10588d5796d2SLennert Buytenhekconfig PAGE_OFFSET
10598d5796d2SLennert Buytenhek	hex
10608d5796d2SLennert Buytenhek	default 0x40000000 if VMSPLIT_1G
10618d5796d2SLennert Buytenhek	default 0x80000000 if VMSPLIT_2G
10628d5796d2SLennert Buytenhek	default 0xC0000000
10638d5796d2SLennert Buytenhek
10641da177e4SLinus Torvaldsconfig NR_CPUS
10651da177e4SLinus Torvalds	int "Maximum number of CPUs (2-32)"
10661da177e4SLinus Torvalds	range 2 32
10671da177e4SLinus Torvalds	depends on SMP
10681da177e4SLinus Torvalds	default "4"
10691da177e4SLinus Torvalds
1070a054a811SRussell Kingconfig HOTPLUG_CPU
1071a054a811SRussell King	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1072a054a811SRussell King	depends on SMP && HOTPLUG && EXPERIMENTAL
1073a054a811SRussell King	help
1074a054a811SRussell King	  Say Y here to experiment with turning CPUs off and on.  CPUs
1075a054a811SRussell King	  can be controlled through /sys/devices/system/cpu.
1076a054a811SRussell King
107737ee16aeSRussell Kingconfig LOCAL_TIMERS
107837ee16aeSRussell King	bool "Use local timer interrupts"
107942578c82SRussell King	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1080850265e8SSrinidhi Kasagar		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
108137ee16aeSRussell King	default y
1082850265e8SSrinidhi Kasagar	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
108337ee16aeSRussell King	help
108437ee16aeSRussell King	  Enable support for local timers on SMP platforms, rather then the
108537ee16aeSRussell King	  legacy IPI broadcast method.  Local timers allows the system
108637ee16aeSRussell King	  accounting to be spread across the timer interval, preventing a
108737ee16aeSRussell King	  "thundering herd" at every timer tick.
108837ee16aeSRussell King
1089d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt
10901da177e4SLinus Torvalds
1091f8065813SRussell Kingconfig HZ
1092f8065813SRussell King	int
1093f8065813SRussell King	default 128 if ARCH_L7200
1094f8065813SRussell King	default 200 if ARCH_EBSA110 || ARCH_S3C2410
1095bfe65704SRussell King	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
10965248c657SDavid Brownell	default AT91_TIMER_HZ if ARCH_AT91
1097f8065813SRussell King	default 100
1098f8065813SRussell King
109916c79651SCatalin Marinasconfig THUMB2_KERNEL
110016c79651SCatalin Marinas	bool "Compile the kernel in Thumb-2 mode"
110116c79651SCatalin Marinas	depends on CPU_V7 && EXPERIMENTAL
110216c79651SCatalin Marinas	select AEABI
110316c79651SCatalin Marinas	select ARM_ASM_UNIFIED
110416c79651SCatalin Marinas	help
110516c79651SCatalin Marinas	  By enabling this option, the kernel will be compiled in
110616c79651SCatalin Marinas	  Thumb-2 mode. A compiler/assembler that understand the unified
110716c79651SCatalin Marinas	  ARM-Thumb syntax is needed.
110816c79651SCatalin Marinas
110916c79651SCatalin Marinas	  If unsure, say N.
111016c79651SCatalin Marinas
11110becb088SCatalin Marinasconfig ARM_ASM_UNIFIED
11120becb088SCatalin Marinas	bool
11130becb088SCatalin Marinas
1114704bdda0SNicolas Pitreconfig AEABI
1115704bdda0SNicolas Pitre	bool "Use the ARM EABI to compile the kernel"
1116704bdda0SNicolas Pitre	help
1117704bdda0SNicolas Pitre	  This option allows for the kernel to be compiled using the latest
1118704bdda0SNicolas Pitre	  ARM ABI (aka EABI).  This is only useful if you are using a user
1119704bdda0SNicolas Pitre	  space environment that is also compiled with EABI.
1120704bdda0SNicolas Pitre
1121704bdda0SNicolas Pitre	  Since there are major incompatibilities between the legacy ABI and
1122704bdda0SNicolas Pitre	  EABI, especially with regard to structure member alignment, this
1123704bdda0SNicolas Pitre	  option also changes the kernel syscall calling convention to
1124704bdda0SNicolas Pitre	  disambiguate both ABIs and allow for backward compatibility support
1125704bdda0SNicolas Pitre	  (selected with CONFIG_OABI_COMPAT).
1126704bdda0SNicolas Pitre
1127704bdda0SNicolas Pitre	  To use this you need GCC version 4.0.0 or later.
1128704bdda0SNicolas Pitre
11296c90c872SNicolas Pitreconfig OABI_COMPAT
1130a73a3ff1SRussell King	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
113161c484d4SNicolas Pitre	depends on AEABI && EXPERIMENTAL
11326c90c872SNicolas Pitre	default y
11336c90c872SNicolas Pitre	help
11346c90c872SNicolas Pitre	  This option preserves the old syscall interface along with the
11356c90c872SNicolas Pitre	  new (ARM EABI) one. It also provides a compatibility layer to
11366c90c872SNicolas Pitre	  intercept syscalls that have structure arguments which layout
11376c90c872SNicolas Pitre	  in memory differs between the legacy ABI and the new ARM EABI
11386c90c872SNicolas Pitre	  (only for non "thumb" binaries). This option adds a tiny
11396c90c872SNicolas Pitre	  overhead to all syscalls and produces a slightly larger kernel.
11406c90c872SNicolas Pitre	  If you know you'll be using only pure EABI user space then you
11416c90c872SNicolas Pitre	  can say N here. If this option is not selected and you attempt
11426c90c872SNicolas Pitre	  to execute a legacy ABI binary then the result will be
11436c90c872SNicolas Pitre	  UNPREDICTABLE (in fact it can be predicted that it won't work
11446c90c872SNicolas Pitre	  at all). If in doubt say Y.
11456c90c872SNicolas Pitre
1146eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL
1147e80d6a24SMel Gorman	bool
1148e80d6a24SMel Gorman
114907a2f737SRussell King# Discontigmem is deprecated
11503f22ab27SDave Hansenconfig ARCH_DISCONTIGMEM_ENABLE
11511da177e4SLinus Torvalds	bool
11521da177e4SLinus Torvalds
115305944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE
115405944d74SRussell King	bool
115505944d74SRussell King
115607a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT
115707a2f737SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
115807a2f737SRussell King
115905944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL
116007a2f737SRussell King	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
116105944d74SRussell King
1162c80d79d7SYasunori Gotoconfig NODES_SHIFT
1163c80d79d7SYasunori Goto	int
1164c80d79d7SYasunori Goto	default "4" if ARCH_LH7A40X
1165c80d79d7SYasunori Goto	default "2"
1166c80d79d7SYasunori Goto	depends on NEED_MULTIPLE_NODES
1167c80d79d7SYasunori Goto
1168053a96caSNicolas Pitreconfig HIGHMEM
1169053a96caSNicolas Pitre	bool "High Memory Support (EXPERIMENTAL)"
1170053a96caSNicolas Pitre	depends on MMU && EXPERIMENTAL
1171053a96caSNicolas Pitre	help
1172053a96caSNicolas Pitre	  The address space of ARM processors is only 4 Gigabytes large
1173053a96caSNicolas Pitre	  and it has to accommodate user address space, kernel address
1174053a96caSNicolas Pitre	  space as well as some memory mapped IO. That means that, if you
1175053a96caSNicolas Pitre	  have a large amount of physical memory and/or IO, not all of the
1176053a96caSNicolas Pitre	  memory can be "permanently mapped" by the kernel. The physical
1177053a96caSNicolas Pitre	  memory that is not permanently mapped is called "high memory".
1178053a96caSNicolas Pitre
1179053a96caSNicolas Pitre	  Depending on the selected kernel/user memory split, minimum
1180053a96caSNicolas Pitre	  vmalloc space and actual amount of RAM, you may not need this
1181053a96caSNicolas Pitre	  option which should result in a slightly faster kernel.
1182053a96caSNicolas Pitre
1183053a96caSNicolas Pitre	  If unsure, say n.
1184053a96caSNicolas Pitre
118565cec8e3SRussell Kingconfig HIGHPTE
118665cec8e3SRussell King	bool "Allocate 2nd-level pagetables from highmem"
118765cec8e3SRussell King	depends on HIGHMEM
118865cec8e3SRussell King	depends on !OUTER_CACHE
118965cec8e3SRussell King
11903f22ab27SDave Hansensource "mm/Kconfig"
11913f22ab27SDave Hansen
11921da177e4SLinus Torvaldsconfig LEDS
11931da177e4SLinus Torvalds	bool "Timer and CPU usage LEDs"
1194e055d5bfSAdrian Bunk	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
11958c8fdbc9SSascha Hauer		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
11961da177e4SLinus Torvalds		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
11971da177e4SLinus Torvalds		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
119873a59c1cSSAN People		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
119925329671SJürgen Schindele		   ARCH_AT91 || ARCH_DAVINCI || \
1200ff3042fbSColin Tuckley		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
12011da177e4SLinus Torvalds	help
12021da177e4SLinus Torvalds	  If you say Y here, the LEDs on your machine will be used
12031da177e4SLinus Torvalds	  to provide useful information about your current system status.
12041da177e4SLinus Torvalds
12051da177e4SLinus Torvalds	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
12061da177e4SLinus Torvalds	  be able to select which LEDs are active using the options below. If
12071da177e4SLinus Torvalds	  you are compiling a kernel for the EBSA-110 or the LART however, the
12081da177e4SLinus Torvalds	  red LED will simply flash regularly to indicate that the system is
12091da177e4SLinus Torvalds	  still functional. It is safe to say Y here if you have a CATS
12101da177e4SLinus Torvalds	  system, but the driver will do nothing.
12111da177e4SLinus Torvalds
12121da177e4SLinus Torvaldsconfig LEDS_TIMER
12131da177e4SLinus Torvalds	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1214eebdf7d7SDavid Brownell			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1215eebdf7d7SDavid Brownell			    || MACH_OMAP_PERSEUS2
12161da177e4SLinus Torvalds	depends on LEDS
12170567a0c0SKevin Hilman	depends on !GENERIC_CLOCKEVENTS
12181da177e4SLinus Torvalds	default y if ARCH_EBSA110
12191da177e4SLinus Torvalds	help
12201da177e4SLinus Torvalds	  If you say Y here, one of the system LEDs (the green one on the
12211da177e4SLinus Torvalds	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
12221da177e4SLinus Torvalds	  will flash regularly to indicate that the system is still
12231da177e4SLinus Torvalds	  operational. This is mainly useful to kernel hackers who are
12241da177e4SLinus Torvalds	  debugging unstable kernels.
12251da177e4SLinus Torvalds
12261da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
12271da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
12281da177e4SLinus Torvalds	  will overrule the CPU usage LED.
12291da177e4SLinus Torvalds
12301da177e4SLinus Torvaldsconfig LEDS_CPU
12311da177e4SLinus Torvalds	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1232eebdf7d7SDavid Brownell			!ARCH_OMAP) \
1233eebdf7d7SDavid Brownell			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1234eebdf7d7SDavid Brownell			|| MACH_OMAP_PERSEUS2
12351da177e4SLinus Torvalds	depends on LEDS
12361da177e4SLinus Torvalds	help
12371da177e4SLinus Torvalds	  If you say Y here, the red LED will be used to give a good real
12381da177e4SLinus Torvalds	  time indication of CPU usage, by lighting whenever the idle task
12391da177e4SLinus Torvalds	  is not currently executing.
12401da177e4SLinus Torvalds
12411da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
12421da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
12431da177e4SLinus Torvalds	  will overrule the CPU usage LED.
12441da177e4SLinus Torvalds
12451da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP
12461da177e4SLinus Torvalds	bool
1247f12d0d7cSHyok S. Choi	depends on CPU_CP15_MMU
12481da177e4SLinus Torvalds	default y if !ARCH_EBSA110
1249e119bfffSRussell King	select HAVE_PROC_CPU if PROC_FS
12501da177e4SLinus Torvalds	help
12511da177e4SLinus Torvalds	  ARM processors cannot fetch/store information which is not
12521da177e4SLinus Torvalds	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
12531da177e4SLinus Torvalds	  address divisible by 4. On 32-bit ARM processors, these non-aligned
12541da177e4SLinus Torvalds	  fetch/store instructions will be emulated in software if you say
12551da177e4SLinus Torvalds	  here, which has a severe performance impact. This is necessary for
12561da177e4SLinus Torvalds	  correct operation of some network protocols. With an IP-only
12571da177e4SLinus Torvalds	  configuration it is safe to say N, otherwise say Y.
12581da177e4SLinus Torvalds
125939ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY
126039ec58f3SLennert Buytenhek	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
126139ec58f3SLennert Buytenhek	depends on MMU && EXPERIMENTAL
126239ec58f3SLennert Buytenhek	default y if CPU_FEROCEON
126339ec58f3SLennert Buytenhek	help
126439ec58f3SLennert Buytenhek	  Implement faster copy_to_user and clear_user methods for CPU
126539ec58f3SLennert Buytenhek	  cores where a 8-word STM instruction give significantly higher
126639ec58f3SLennert Buytenhek	  memory write throughput than a sequence of individual 32bit stores.
126739ec58f3SLennert Buytenhek
126839ec58f3SLennert Buytenhek	  A possible side effect is a slight increase in scheduling latency
126939ec58f3SLennert Buytenhek	  between threads sharing the same address space if they invoke
127039ec58f3SLennert Buytenhek	  such copy operations with large buffers.
127139ec58f3SLennert Buytenhek
127239ec58f3SLennert Buytenhek	  However, if the CPU data cache is using a write-allocate mode,
127339ec58f3SLennert Buytenhek	  this option is unlikely to provide any performance gain.
127439ec58f3SLennert Buytenhek
12751da177e4SLinus Torvaldsendmenu
12761da177e4SLinus Torvalds
12771da177e4SLinus Torvaldsmenu "Boot options"
12781da177e4SLinus Torvalds
12791da177e4SLinus Torvalds# Compressed boot loader in ROM.  Yes, we really want to ask about
12801da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files.
12811da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT
12821da177e4SLinus Torvalds	hex "Compressed ROM boot loader base address"
12831da177e4SLinus Torvalds	default "0"
12841da177e4SLinus Torvalds	help
12851da177e4SLinus Torvalds	  The physical address at which the ROM-able zImage is to be
12861da177e4SLinus Torvalds	  placed in the target.  Platforms which normally make use of
12871da177e4SLinus Torvalds	  ROM-able zImage formats normally set this to a suitable
12881da177e4SLinus Torvalds	  value in their defconfig file.
12891da177e4SLinus Torvalds
12901da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
12911da177e4SLinus Torvalds
12921da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS
12931da177e4SLinus Torvalds	hex "Compressed ROM boot loader BSS address"
12941da177e4SLinus Torvalds	default "0"
12951da177e4SLinus Torvalds	help
1296f8c440b2SDan Fandrich	  The base address of an area of read/write memory in the target
1297f8c440b2SDan Fandrich	  for the ROM-able zImage which must be available while the
1298f8c440b2SDan Fandrich	  decompressor is running. It must be large enough to hold the
1299f8c440b2SDan Fandrich	  entire decompressed kernel plus an additional 128 KiB.
1300f8c440b2SDan Fandrich	  Platforms which normally make use of ROM-able zImage formats
1301f8c440b2SDan Fandrich	  normally set this to a suitable value in their defconfig file.
13021da177e4SLinus Torvalds
13031da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
13041da177e4SLinus Torvalds
13051da177e4SLinus Torvaldsconfig ZBOOT_ROM
13061da177e4SLinus Torvalds	bool "Compressed boot loader in ROM/flash"
13071da177e4SLinus Torvalds	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
13081da177e4SLinus Torvalds	help
13091da177e4SLinus Torvalds	  Say Y here if you intend to execute your compressed kernel image
13101da177e4SLinus Torvalds	  (zImage) directly from ROM or flash.  If unsure, say N.
13111da177e4SLinus Torvalds
13121da177e4SLinus Torvaldsconfig CMDLINE
13131da177e4SLinus Torvalds	string "Default kernel command string"
13141da177e4SLinus Torvalds	default ""
13151da177e4SLinus Torvalds	help
13161da177e4SLinus Torvalds	  On some architectures (EBSA110 and CATS), there is currently no way
13171da177e4SLinus Torvalds	  for the boot loader to pass arguments to the kernel. For these
13181da177e4SLinus Torvalds	  architectures, you should supply some command-line options at build
13191da177e4SLinus Torvalds	  time by entering them here. As a minimum, you should specify the
13201da177e4SLinus Torvalds	  memory size and the root device (e.g., mem=64M root=/dev/nfs).
13211da177e4SLinus Torvalds
13221da177e4SLinus Torvaldsconfig XIP_KERNEL
13231da177e4SLinus Torvalds	bool "Kernel Execute-In-Place from ROM"
13241da177e4SLinus Torvalds	depends on !ZBOOT_ROM
13251da177e4SLinus Torvalds	help
13261da177e4SLinus Torvalds	  Execute-In-Place allows the kernel to run from non-volatile storage
13271da177e4SLinus Torvalds	  directly addressable by the CPU, such as NOR flash. This saves RAM
13281da177e4SLinus Torvalds	  space since the text section of the kernel is not loaded from flash
13291da177e4SLinus Torvalds	  to RAM.  Read-write sections, such as the data section and stack,
13301da177e4SLinus Torvalds	  are still copied to RAM.  The XIP kernel is not compressed since
13311da177e4SLinus Torvalds	  it has to run directly from flash, so it will take more space to
13321da177e4SLinus Torvalds	  store it.  The flash address used to link the kernel object files,
13331da177e4SLinus Torvalds	  and for storing it, is configuration dependent. Therefore, if you
13341da177e4SLinus Torvalds	  say Y here, you must know the proper physical address where to
13351da177e4SLinus Torvalds	  store the kernel image depending on your own flash memory usage.
13361da177e4SLinus Torvalds
13371da177e4SLinus Torvalds	  Also note that the make target becomes "make xipImage" rather than
13381da177e4SLinus Torvalds	  "make zImage" or "make Image".  The final kernel binary to put in
13391da177e4SLinus Torvalds	  ROM memory will be arch/arm/boot/xipImage.
13401da177e4SLinus Torvalds
13411da177e4SLinus Torvalds	  If unsure, say N.
13421da177e4SLinus Torvalds
13431da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR
13441da177e4SLinus Torvalds	hex "XIP Kernel Physical Location"
13451da177e4SLinus Torvalds	depends on XIP_KERNEL
13461da177e4SLinus Torvalds	default "0x00080000"
13471da177e4SLinus Torvalds	help
13481da177e4SLinus Torvalds	  This is the physical address in your flash memory the kernel will
13491da177e4SLinus Torvalds	  be linked for and stored to.  This address is dependent on your
13501da177e4SLinus Torvalds	  own flash usage.
13511da177e4SLinus Torvalds
1352c587e4a6SRichard Purdieconfig KEXEC
1353c587e4a6SRichard Purdie	bool "Kexec system call (EXPERIMENTAL)"
1354c587e4a6SRichard Purdie	depends on EXPERIMENTAL
1355c587e4a6SRichard Purdie	help
1356c587e4a6SRichard Purdie	  kexec is a system call that implements the ability to shutdown your
1357c587e4a6SRichard Purdie	  current kernel, and to start another kernel.  It is like a reboot
135801dd2fbfSMatt LaPlante	  but it is independent of the system firmware.   And like a reboot
1359c587e4a6SRichard Purdie	  you can start any kernel with it, not just Linux.
1360c587e4a6SRichard Purdie
1361c587e4a6SRichard Purdie	  It is an ongoing process to be certain the hardware in a machine
1362c587e4a6SRichard Purdie	  is properly shutdown, so do not be surprised if this code does not
1363c587e4a6SRichard Purdie	  initially work for you.  It may help to enable device hotplugging
1364c587e4a6SRichard Purdie	  support.
1365c587e4a6SRichard Purdie
13664cd9d6f7SRichard Purdieconfig ATAGS_PROC
13674cd9d6f7SRichard Purdie	bool "Export atags in procfs"
1368b98d7291SUli Luckas	depends on KEXEC
1369b98d7291SUli Luckas	default y
13704cd9d6f7SRichard Purdie	help
13714cd9d6f7SRichard Purdie	  Should the atags used to boot the kernel be exported in an "atags"
13724cd9d6f7SRichard Purdie	  file in procfs. Useful with kexec.
13734cd9d6f7SRichard Purdie
13741da177e4SLinus Torvaldsendmenu
13751da177e4SLinus Torvalds
1376ac9d7efcSRussell Kingmenu "CPU Power Management"
13771da177e4SLinus Torvalds
137889c52ed4SBen Dooksif ARCH_HAS_CPUFREQ
13791da177e4SLinus Torvalds
13801da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig"
13811da177e4SLinus Torvalds
13821da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100
13831da177e4SLinus Torvalds	bool
13841da177e4SLinus Torvalds
13851da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110
13861da177e4SLinus Torvalds	bool
13871da177e4SLinus Torvalds
13881da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR
13891da177e4SLinus Torvalds	tristate "CPUfreq driver for ARM Integrator CPUs"
13901da177e4SLinus Torvalds	depends on ARCH_INTEGRATOR && CPU_FREQ
13911da177e4SLinus Torvalds	default y
13921da177e4SLinus Torvalds	help
13931da177e4SLinus Torvalds	  This enables the CPUfreq driver for ARM Integrator CPUs.
13941da177e4SLinus Torvalds
13951da177e4SLinus Torvalds	  For details, take a look at <file:Documentation/cpu-freq>.
13961da177e4SLinus Torvalds
13971da177e4SLinus Torvalds	  If in doubt, say Y.
13981da177e4SLinus Torvalds
13999e2697ffSRussell Kingconfig CPU_FREQ_PXA
14009e2697ffSRussell King	bool
14019e2697ffSRussell King	depends on CPU_FREQ && ARCH_PXA && PXA25x
14029e2697ffSRussell King	default y
14039e2697ffSRussell King	select CPU_FREQ_DEFAULT_GOV_USERSPACE
14049e2697ffSRussell King
1405b3748dddSMark Brownconfig CPU_FREQ_S3C64XX
1406b3748dddSMark Brown	bool "CPUfreq support for Samsung S3C64XX CPUs"
1407b3748dddSMark Brown	depends on CPU_FREQ && CPU_S3C6410
1408b3748dddSMark Brown
14099d56c02aSBen Dooksconfig CPU_FREQ_S3C
14109d56c02aSBen Dooks	bool
14119d56c02aSBen Dooks	help
14129d56c02aSBen Dooks	  Internal configuration node for common cpufreq on Samsung SoC
14139d56c02aSBen Dooks
14149d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX
14159d56c02aSBen Dooks	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
14169d56c02aSBen Dooks	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
14179d56c02aSBen Dooks	select CPU_FREQ_S3C
14189d56c02aSBen Dooks	help
14199d56c02aSBen Dooks	  This enables the CPUfreq driver for the Samsung S3C24XX family
14209d56c02aSBen Dooks	  of CPUs.
14219d56c02aSBen Dooks
14229d56c02aSBen Dooks	  For details, take a look at <file:Documentation/cpu-freq>.
14239d56c02aSBen Dooks
14249d56c02aSBen Dooks	  If in doubt, say N.
14259d56c02aSBen Dooks
14269d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL
14279d56c02aSBen Dooks	bool "Support CPUfreq changing of PLL frequency"
14289d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
14299d56c02aSBen Dooks	help
14309d56c02aSBen Dooks	  Compile in support for changing the PLL frequency from the
14319d56c02aSBen Dooks	  S3C24XX series CPUfreq driver. The PLL takes time to settle
14329d56c02aSBen Dooks	  after a frequency change, so by default it is not enabled.
14339d56c02aSBen Dooks
14349d56c02aSBen Dooks	  This also means that the PLL tables for the selected CPU(s) will
14359d56c02aSBen Dooks	  be built which may increase the size of the kernel image.
14369d56c02aSBen Dooks
14379d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG
14389d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver core"
14399d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
14409d56c02aSBen Dooks	help
14419d56c02aSBen Dooks	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
14429d56c02aSBen Dooks
14439d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG
14449d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver IO timing"
14459d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
14469d56c02aSBen Dooks	help
14479d56c02aSBen Dooks	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
14489d56c02aSBen Dooks
1449e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS
1450e6d197a6SBen Dooks	bool "Export debugfs for CPUFreq"
1451e6d197a6SBen Dooks	depends on CPU_FREQ_S3C24XX && DEBUG_FS
1452e6d197a6SBen Dooks	help
1453e6d197a6SBen Dooks	  Export status information via debugfs.
1454e6d197a6SBen Dooks
14551da177e4SLinus Torvaldsendif
14561da177e4SLinus Torvalds
1457ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig"
1458ac9d7efcSRussell King
1459ac9d7efcSRussell Kingendmenu
1460ac9d7efcSRussell King
14611da177e4SLinus Torvaldsmenu "Floating point emulation"
14621da177e4SLinus Torvalds
14631da177e4SLinus Torvaldscomment "At least one emulation must be selected"
14641da177e4SLinus Torvalds
14651da177e4SLinus Torvaldsconfig FPE_NWFPE
14661da177e4SLinus Torvalds	bool "NWFPE math emulation"
14678993a44cSNicolas Pitre	depends on !AEABI || OABI_COMPAT
14681da177e4SLinus Torvalds	---help---
14691da177e4SLinus Torvalds	  Say Y to include the NWFPE floating point emulator in the kernel.
14701da177e4SLinus Torvalds	  This is necessary to run most binaries. Linux does not currently
14711da177e4SLinus Torvalds	  support floating point hardware so you need to say Y here even if
14721da177e4SLinus Torvalds	  your machine has an FPA or floating point co-processor podule.
14731da177e4SLinus Torvalds
14741da177e4SLinus Torvalds	  You may say N here if you are going to load the Acorn FPEmulator
14751da177e4SLinus Torvalds	  early in the bootup.
14761da177e4SLinus Torvalds
14771da177e4SLinus Torvaldsconfig FPE_NWFPE_XP
14781da177e4SLinus Torvalds	bool "Support extended precision"
1479bedf142bSLennert Buytenhek	depends on FPE_NWFPE
14801da177e4SLinus Torvalds	help
14811da177e4SLinus Torvalds	  Say Y to include 80-bit support in the kernel floating-point
14821da177e4SLinus Torvalds	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
14831da177e4SLinus Torvalds	  Note that gcc does not generate 80-bit operations by default,
14841da177e4SLinus Torvalds	  so in most cases this option only enlarges the size of the
14851da177e4SLinus Torvalds	  floating point emulator without any good reason.
14861da177e4SLinus Torvalds
14871da177e4SLinus Torvalds	  You almost surely want to say N here.
14881da177e4SLinus Torvalds
14891da177e4SLinus Torvaldsconfig FPE_FASTFPE
14901da177e4SLinus Torvalds	bool "FastFPE math emulation (EXPERIMENTAL)"
14918993a44cSNicolas Pitre	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
14921da177e4SLinus Torvalds	---help---
14931da177e4SLinus Torvalds	  Say Y here to include the FAST floating point emulator in the kernel.
14941da177e4SLinus Torvalds	  This is an experimental much faster emulator which now also has full
14951da177e4SLinus Torvalds	  precision for the mantissa.  It does not support any exceptions.
14961da177e4SLinus Torvalds	  It is very simple, and approximately 3-6 times faster than NWFPE.
14971da177e4SLinus Torvalds
14981da177e4SLinus Torvalds	  It should be sufficient for most programs.  It may be not suitable
14991da177e4SLinus Torvalds	  for scientific calculations, but you have to check this for yourself.
15001da177e4SLinus Torvalds	  If you do not feel you need a faster FP emulation you should better
15011da177e4SLinus Torvalds	  choose NWFPE.
15021da177e4SLinus Torvalds
15031da177e4SLinus Torvaldsconfig VFP
15041da177e4SLinus Torvalds	bool "VFP-format floating point maths"
1505c00d4ffdSRussell King	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
15061da177e4SLinus Torvalds	help
15071da177e4SLinus Torvalds	  Say Y to include VFP support code in the kernel. This is needed
15081da177e4SLinus Torvalds	  if your hardware includes a VFP unit.
15091da177e4SLinus Torvalds
15101da177e4SLinus Torvalds	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
15111da177e4SLinus Torvalds	  release notes and additional status information.
15121da177e4SLinus Torvalds
15131da177e4SLinus Torvalds	  Say N if your target does not have VFP hardware.
15141da177e4SLinus Torvalds
151525ebee02SCatalin Marinasconfig VFPv3
151625ebee02SCatalin Marinas	bool
151725ebee02SCatalin Marinas	depends on VFP
151825ebee02SCatalin Marinas	default y if CPU_V7
151925ebee02SCatalin Marinas
1520b5872db4SCatalin Marinasconfig NEON
1521b5872db4SCatalin Marinas	bool "Advanced SIMD (NEON) Extension support"
1522b5872db4SCatalin Marinas	depends on VFPv3 && CPU_V7
1523b5872db4SCatalin Marinas	help
1524b5872db4SCatalin Marinas	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1525b5872db4SCatalin Marinas	  Extension.
1526b5872db4SCatalin Marinas
15271da177e4SLinus Torvaldsendmenu
15281da177e4SLinus Torvalds
15291da177e4SLinus Torvaldsmenu "Userspace binary formats"
15301da177e4SLinus Torvalds
15311da177e4SLinus Torvaldssource "fs/Kconfig.binfmt"
15321da177e4SLinus Torvalds
15331da177e4SLinus Torvaldsconfig ARTHUR
15341da177e4SLinus Torvalds	tristate "RISC OS personality"
1535704bdda0SNicolas Pitre	depends on !AEABI
15361da177e4SLinus Torvalds	help
15371da177e4SLinus Torvalds	  Say Y here to include the kernel code necessary if you want to run
15381da177e4SLinus Torvalds	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
15391da177e4SLinus Torvalds	  experimental; if this sounds frightening, say N and sleep in peace.
15401da177e4SLinus Torvalds	  You can also say M here to compile this support as a module (which
15411da177e4SLinus Torvalds	  will be called arthur).
15421da177e4SLinus Torvalds
15431da177e4SLinus Torvaldsendmenu
15441da177e4SLinus Torvalds
15451da177e4SLinus Torvaldsmenu "Power management options"
15461da177e4SLinus Torvalds
1547eceab4acSRussell Kingsource "kernel/power/Kconfig"
15481da177e4SLinus Torvalds
1549f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE
1550f4cb5700SJohannes Berg	def_bool y
1551f4cb5700SJohannes Berg
15521da177e4SLinus Torvaldsendmenu
15531da177e4SLinus Torvalds
1554d5950b43SSam Ravnborgsource "net/Kconfig"
1555d5950b43SSam Ravnborg
1556ac25150fSUwe Kleine-Königsource "drivers/Kconfig"
15571da177e4SLinus Torvalds
15581da177e4SLinus Torvaldssource "fs/Kconfig"
15591da177e4SLinus Torvalds
15601da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug"
15611da177e4SLinus Torvalds
15621da177e4SLinus Torvaldssource "security/Kconfig"
15631da177e4SLinus Torvalds
15641da177e4SLinus Torvaldssource "crypto/Kconfig"
15651da177e4SLinus Torvalds
15661da177e4SLinus Torvaldssource "lib/Kconfig"
1567