xref: /linux/arch/arm/Kconfig (revision 550db7f155c9e51288fbe114fbb33d7a044d8a75)
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
1542d4b839SMathieu Desnoyers	select HAVE_OPROFILE
165cbad0ebSJason Wessel	select HAVE_ARCH_KGDB
173f550096SMathieu Desnoyers	select HAVE_KPROBES if (!XIP_KERNEL)
189edddaa2SAnanth N Mavinakayanahalli	select HAVE_KRETPROBES if (HAVE_KPROBES)
19606576ceSSteven Rostedt	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
201fe53268SDmitry Baryshkov	select HAVE_GENERIC_DMA_COHERENT
21e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_GZIP
22e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_LZO
231da177e4SLinus Torvalds	help
241da177e4SLinus Torvalds	  The ARM series is a line of low-power-consumption RISC chip designs
25f6c8965aSMartin Michlmayr	  licensed by ARM Ltd and targeted at embedded applications and
261da177e4SLinus Torvalds	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
271da177e4SLinus Torvalds	  manufactured, but legacy ARM-based PC hardware remains popular in
281da177e4SLinus Torvalds	  Europe.  There is an ARM Linux project with a web page at
291da177e4SLinus Torvalds	  <http://www.arm.linux.org.uk/>.
301da177e4SLinus Torvalds
311a189b97SRussell Kingconfig HAVE_PWM
321a189b97SRussell King	bool
331a189b97SRussell King
3475e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION
3575e7153aSRalf Baechle	bool
3675e7153aSRalf Baechle
370a938b97SDavid Brownellconfig GENERIC_GPIO
380a938b97SDavid Brownell	bool
390a938b97SDavid Brownell
40746140c7SKevin Hilmanconfig GENERIC_TIME
41746140c7SKevin Hilman	bool
42746140c7SKevin Hilman
430567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS
440567a0c0SKevin Hilman	bool
450567a0c0SKevin Hilman
46a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST
47a8655e83SCatalin Marinas	bool
48a8655e83SCatalin Marinas	depends on GENERIC_CLOCKEVENTS
49a8655e83SCatalin Marinas	default y if SMP && !LOCAL_TIMERS
50a8655e83SCatalin Marinas
51bc581770SLinus Walleijconfig HAVE_TCM
52bc581770SLinus Walleij	bool
53bc581770SLinus Walleij	select GENERIC_ALLOCATOR
54bc581770SLinus Walleij
555ea81769SAl Viroconfig NO_IOPORT
565ea81769SAl Viro	bool
575ea81769SAl Viro
581da177e4SLinus Torvaldsconfig EISA
591da177e4SLinus Torvalds	bool
601da177e4SLinus Torvalds	---help---
611da177e4SLinus Torvalds	  The Extended Industry Standard Architecture (EISA) bus was
621da177e4SLinus Torvalds	  developed as an open alternative to the IBM MicroChannel bus.
631da177e4SLinus Torvalds
641da177e4SLinus Torvalds	  The EISA bus provided some of the features of the IBM MicroChannel
651da177e4SLinus Torvalds	  bus while maintaining backward compatibility with cards made for
661da177e4SLinus Torvalds	  the older ISA bus.  The EISA bus saw limited use between 1988 and
671da177e4SLinus Torvalds	  1995 when it was made obsolete by the PCI bus.
681da177e4SLinus Torvalds
691da177e4SLinus Torvalds	  Say Y here if you are building a kernel for an EISA-based machine.
701da177e4SLinus Torvalds
711da177e4SLinus Torvalds	  Otherwise, say N.
721da177e4SLinus Torvalds
731da177e4SLinus Torvaldsconfig SBUS
741da177e4SLinus Torvalds	bool
751da177e4SLinus Torvalds
761da177e4SLinus Torvaldsconfig MCA
771da177e4SLinus Torvalds	bool
781da177e4SLinus Torvalds	help
791da177e4SLinus Torvalds	  MicroChannel Architecture is found in some IBM PS/2 machines and
801da177e4SLinus Torvalds	  laptops.  It is a bus system similar to PCI or ISA. See
811da177e4SLinus Torvalds	  <file:Documentation/mca.txt> (and especially the web page given
821da177e4SLinus Torvalds	  there) before attempting to build an MCA bus kernel.
831da177e4SLinus Torvalds
844a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS
854a2581a0SThomas Gleixner	bool
864a2581a0SThomas Gleixner	default y
874a2581a0SThomas Gleixner
88f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT
89f16fb1ecSRussell King	bool
90f16fb1ecSRussell King	default y
91f16fb1ecSRussell King
92f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT
93f76e9154SNicolas Pitre	bool
94f76e9154SNicolas Pitre	depends on !SMP
95f76e9154SNicolas Pitre	default y
96f76e9154SNicolas Pitre
97f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT
98f16fb1ecSRussell King	bool
99f16fb1ecSRussell King	default y
100f16fb1ecSRussell King
1017ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT
1027ad1bcb2SRussell King	bool
1037ad1bcb2SRussell King	default y
1047ad1bcb2SRussell King
1054a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND
1064a2581a0SThomas Gleixner	bool
1074a2581a0SThomas Gleixner	default y
1084a2581a0SThomas Gleixner
1094a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE
1104a2581a0SThomas Gleixner	bool
1114a2581a0SThomas Gleixner	default y
1124a2581a0SThomas Gleixner
11395c354feSNick Pigginconfig GENERIC_LOCKBREAK
11495c354feSNick Piggin	bool
11595c354feSNick Piggin	default y
11695c354feSNick Piggin	depends on SMP && PREEMPT
11795c354feSNick Piggin
1181da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK
1191da177e4SLinus Torvalds	bool
1201da177e4SLinus Torvalds	default y
1211da177e4SLinus Torvalds
1221da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM
1231da177e4SLinus Torvalds	bool
1241da177e4SLinus Torvalds
125f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32
126f0d1b0b3SDavid Howells	bool
127f0d1b0b3SDavid Howells
128f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64
129f0d1b0b3SDavid Howells	bool
130f0d1b0b3SDavid Howells
13189c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ
13289c52ed4SBen Dooks	bool
13389c52ed4SBen Dooks	help
13489c52ed4SBen Dooks	  Internal node to signify that the ARCH has CPUFREQ support
13589c52ed4SBen Dooks	  and that the relevant menu configurations are displayed for
13689c52ed4SBen Dooks	  it.
13789c52ed4SBen Dooks
138b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT
139b89c3b16SAkinobu Mita	bool
140b89c3b16SAkinobu Mita	default y
141b89c3b16SAkinobu Mita
1421da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY
1431da177e4SLinus Torvalds	bool
1441da177e4SLinus Torvalds	default y
1451da177e4SLinus Torvalds
146a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC
147a08b6b79Sviro@ZenIV.linux.org.uk	bool
148a08b6b79Sviro@ZenIV.linux.org.uk
1495ac6da66SChristoph Lameterconfig ZONE_DMA
1505ac6da66SChristoph Lameter	bool
1515ac6da66SChristoph Lameter
1521da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA
1531da177e4SLinus Torvalds	bool
1541da177e4SLinus Torvalds
1551da177e4SLinus Torvaldsconfig FIQ
1561da177e4SLinus Torvalds	bool
1571da177e4SLinus Torvalds
158034d2f5aSAl Viroconfig ARCH_MTD_XIP
159034d2f5aSAl Viro	bool
160034d2f5aSAl Viro
16160a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ
16260a752efSPaulius Zaleckas	def_bool y
16360a752efSPaulius Zaleckas
164c0ffa3a9SMathieu Desnoyersif OPROFILE
165c0ffa3a9SMathieu Desnoyers
166c0ffa3a9SMathieu Desnoyersconfig OPROFILE_ARMV6
167c0ffa3a9SMathieu Desnoyers	def_bool y
168c0ffa3a9SMathieu Desnoyers	depends on CPU_V6 && !SMP
169c0ffa3a9SMathieu Desnoyers	select OPROFILE_ARM11_CORE
170c0ffa3a9SMathieu Desnoyers
171c0ffa3a9SMathieu Desnoyersconfig OPROFILE_MPCORE
172c0ffa3a9SMathieu Desnoyers	def_bool y
173c0ffa3a9SMathieu Desnoyers	depends on CPU_V6 && SMP
174c0ffa3a9SMathieu Desnoyers	select OPROFILE_ARM11_CORE
175c0ffa3a9SMathieu Desnoyers
176c0ffa3a9SMathieu Desnoyersconfig OPROFILE_ARM11_CORE
177c0ffa3a9SMathieu Desnoyers	bool
178c0ffa3a9SMathieu Desnoyers
179d7ac4e28SJean PIHETconfig OPROFILE_ARMV7
180d7ac4e28SJean PIHET	def_bool y
181d7ac4e28SJean PIHET	depends on CPU_V7 && !SMP
182d7ac4e28SJean PIHET	bool
183d7ac4e28SJean PIHET
184c0ffa3a9SMathieu Desnoyersendif
185c0ffa3a9SMathieu Desnoyers
186c760fc19SHyok S. Choiconfig VECTORS_BASE
187c760fc19SHyok S. Choi	hex
1886afd6faeSHyok S. Choi	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
189c760fc19SHyok S. Choi	default DRAM_BASE if REMAP_VECTORS_TO_RAM
190c760fc19SHyok S. Choi	default 0x00000000
191c760fc19SHyok S. Choi	help
192c760fc19SHyok S. Choi	  The base address of exception vectors.
193c760fc19SHyok S. Choi
1941da177e4SLinus Torvaldssource "init/Kconfig"
1951da177e4SLinus Torvalds
196dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer"
197dc52ddc0SMatt Helsley
1981da177e4SLinus Torvaldsmenu "System Type"
1991da177e4SLinus Torvalds
2003c427975SHyok S. Choiconfig MMU
2013c427975SHyok S. Choi	bool "MMU-based Paged Memory Management Support"
2023c427975SHyok S. Choi	default y
2033c427975SHyok S. Choi	help
2043c427975SHyok S. Choi	  Select if you want MMU-based virtualised addressing space
2053c427975SHyok S. Choi	  support by paged memory management. If unsure, say 'Y'.
2063c427975SHyok S. Choi
2071da177e4SLinus Torvaldschoice
2081da177e4SLinus Torvalds	prompt "ARM system type"
2096a0e2430SCatalin Marinas	default ARCH_VERSATILE
2101da177e4SLinus Torvalds
2114af6fee1SDeepak Saxenaconfig ARCH_AAEC2000
2124af6fee1SDeepak Saxena	bool "Agilent AAEC-2000 based"
213c750815eSRussell King	select CPU_ARM920T
2144af6fee1SDeepak Saxena	select ARM_AMBA
2159483a578SDavid Brownell	select HAVE_CLK
2164af6fee1SDeepak Saxena	help
2174af6fee1SDeepak Saxena	  This enables support for systems based on the Agilent AAEC-2000
2184af6fee1SDeepak Saxena
2194af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR
2204af6fee1SDeepak Saxena	bool "ARM Ltd. Integrator family"
2214af6fee1SDeepak Saxena	select ARM_AMBA
22289c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
2239483a578SDavid Brownell	select HAVE_CLK
224d72fbdf0SRussell King	select COMMON_CLKDEV
2254af6fee1SDeepak Saxena	select ICST525
2264af6fee1SDeepak Saxena	help
2274af6fee1SDeepak Saxena	  Support for ARM's Integrator platform.
2284af6fee1SDeepak Saxena
2294af6fee1SDeepak Saxenaconfig ARCH_REALVIEW
2304af6fee1SDeepak Saxena	bool "ARM Ltd. RealView family"
2314af6fee1SDeepak Saxena	select ARM_AMBA
2329483a578SDavid Brownell	select HAVE_CLK
233cf30fb4aSRussell King	select COMMON_CLKDEV
2344af6fee1SDeepak Saxena	select ICST307
23585802afeSCatalin Marinas	select GENERIC_TIME
236ae30ceacSCatalin Marinas	select GENERIC_CLOCKEVENTS
237eb7fffa3SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
2384af6fee1SDeepak Saxena	help
2394af6fee1SDeepak Saxena	  This enables support for ARM Ltd RealView boards.
2404af6fee1SDeepak Saxena
2414af6fee1SDeepak Saxenaconfig ARCH_VERSATILE
2424af6fee1SDeepak Saxena	bool "ARM Ltd. Versatile family"
2434af6fee1SDeepak Saxena	select ARM_AMBA
2444af6fee1SDeepak Saxena	select ARM_VIC
2459483a578SDavid Brownell	select HAVE_CLK
24671a06da0SRussell King	select COMMON_CLKDEV
2474af6fee1SDeepak Saxena	select ICST307
248b49c87c2SKevin Hilman	select GENERIC_TIME
24989df1272SKevin Hilman	select GENERIC_CLOCKEVENTS
250bbeddc43SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
2514af6fee1SDeepak Saxena	help
2524af6fee1SDeepak Saxena	  This enables support for ARM Ltd Versatile board.
2534af6fee1SDeepak Saxena
2548fc5ffa0SAndrew Victorconfig ARCH_AT91
2558fc5ffa0SAndrew Victor	bool "Atmel AT91"
2560a938b97SDavid Brownell	select GENERIC_GPIO
257f373e8c0SRyan Mallon	select ARCH_REQUIRE_GPIOLIB
25893686ae8SDavid Brownell	select HAVE_CLK
2594af6fee1SDeepak Saxena	help
2602b3b3516SAndrew Victor	  This enables support for systems based on the Atmel AT91RM9200,
2612b3b3516SAndrew Victor	  AT91SAM9 and AT91CAP9 processors.
2624af6fee1SDeepak Saxena
2631da177e4SLinus Torvaldsconfig ARCH_CLPS711X
2644af6fee1SDeepak Saxena	bool "Cirrus Logic CLPS711x/EP721x-based"
265c750815eSRussell King	select CPU_ARM720T
266f999b8bdSMartin Michlmayr	help
267f999b8bdSMartin Michlmayr	  Support for Cirrus Logic 711x/721x based boards.
2681da177e4SLinus Torvalds
269788c9700SRussell Kingconfig ARCH_GEMINI
270788c9700SRussell King	bool "Cortina Systems Gemini"
271788c9700SRussell King	select CPU_FA526
272788c9700SRussell King	select GENERIC_GPIO
273788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
274788c9700SRussell King	help
275788c9700SRussell King	  Support for the Cortina Systems Gemini family SoCs
276788c9700SRussell King
2771da177e4SLinus Torvaldsconfig ARCH_EBSA110
2781da177e4SLinus Torvalds	bool "EBSA-110"
279c750815eSRussell King	select CPU_SA110
280f7e68bbfSRussell King	select ISA
281c5eb2a2bSRussell King	select NO_IOPORT
2821da177e4SLinus Torvalds	help
2831da177e4SLinus Torvalds	  This is an evaluation board for the StrongARM processor available
284f6c8965aSMartin Michlmayr	  from Digital. It has limited hardware on-board, including an
2851da177e4SLinus Torvalds	  Ethernet interface, two PCMCIA sockets, two serial ports and a
2861da177e4SLinus Torvalds	  parallel port.
2871da177e4SLinus Torvalds
288e7736d47SLennert Buytenhekconfig ARCH_EP93XX
289e7736d47SLennert Buytenhek	bool "EP93xx-based"
290c750815eSRussell King	select CPU_ARM920T
291e7736d47SLennert Buytenhek	select ARM_AMBA
292e7736d47SLennert Buytenhek	select ARM_VIC
2934e9f9fd5SHerbert Valerio Riedel	select GENERIC_GPIO
2949483a578SDavid Brownell	select HAVE_CLK
295ae696fd5SRussell King	select COMMON_CLKDEV
2967444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
297eb33575cSMel Gorman	select ARCH_HAS_HOLES_MEMORYMODEL
298e7736d47SLennert Buytenhek	help
299e7736d47SLennert Buytenhek	  This enables support for the Cirrus EP93xx series of CPUs.
300e7736d47SLennert Buytenhek
3011da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE
3021da177e4SLinus Torvalds	bool "FootBridge"
303c750815eSRussell King	select CPU_SA110
3041da177e4SLinus Torvalds	select FOOTBRIDGE
305f999b8bdSMartin Michlmayr	help
306f999b8bdSMartin Michlmayr	  Support for systems based on the DC21285 companion chip
307f999b8bdSMartin Michlmayr	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
3081da177e4SLinus Torvalds
309788c9700SRussell Kingconfig ARCH_MXC
310788c9700SRussell King	bool "Freescale MXC/iMX-based"
311788c9700SRussell King	select GENERIC_TIME
312788c9700SRussell King	select GENERIC_CLOCKEVENTS
313788c9700SRussell King	select ARCH_MTD_XIP
314788c9700SRussell King	select GENERIC_GPIO
315788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
316a2ab67faSRussell King	select HAVE_CLK
317788c9700SRussell King	help
318788c9700SRussell King	  Support for Freescale MXC/iMX-based family of processors
319788c9700SRussell King
3207bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX
3217bd0f2f5Sdmitry pervushin	bool "Freescale STMP3xxx"
3227bd0f2f5Sdmitry pervushin	select CPU_ARM926T
3237bd0f2f5Sdmitry pervushin	select HAVE_CLK
3247bd0f2f5Sdmitry pervushin	select COMMON_CLKDEV
3257bd0f2f5Sdmitry pervushin	select ARCH_REQUIRE_GPIOLIB
3267bd0f2f5Sdmitry pervushin	select GENERIC_TIME
3277bd0f2f5Sdmitry pervushin	select GENERIC_CLOCKEVENTS
3287bd0f2f5Sdmitry pervushin	select GENERIC_GPIO
3297bd0f2f5Sdmitry pervushin	select USB_ARCH_HAS_EHCI
3307bd0f2f5Sdmitry pervushin	help
3317bd0f2f5Sdmitry pervushin	  Support for systems based on the Freescale 3xxx CPUs.
3327bd0f2f5Sdmitry pervushin
3334af6fee1SDeepak Saxenaconfig ARCH_NETX
3344af6fee1SDeepak Saxena	bool "Hilscher NetX based"
335c750815eSRussell King	select CPU_ARM926T
3364af6fee1SDeepak Saxena	select ARM_VIC
3372fcfe6b8SUwe Kleine-König	select GENERIC_CLOCKEVENTS
33821edecd3SUwe Kleine-König	select GENERIC_TIME
339f999b8bdSMartin Michlmayr	help
3404af6fee1SDeepak Saxena	  This enables support for systems based on the Hilscher NetX Soc
3414af6fee1SDeepak Saxena
3424af6fee1SDeepak Saxenaconfig ARCH_H720X
3434af6fee1SDeepak Saxena	bool "Hynix HMS720x-based"
344c750815eSRussell King	select CPU_ARM720T
3454af6fee1SDeepak Saxena	select ISA_DMA_API
3464af6fee1SDeepak Saxena	help
3474af6fee1SDeepak Saxena	  This enables support for systems based on the Hynix HMS720x
3484af6fee1SDeepak Saxena
34928ad94ecSAlessandro Rubiniconfig ARCH_NOMADIK
35028ad94ecSAlessandro Rubini	bool "STMicroelectronics Nomadik"
35128ad94ecSAlessandro Rubini	select ARM_AMBA
35228ad94ecSAlessandro Rubini	select ARM_VIC
35328ad94ecSAlessandro Rubini	select CPU_ARM926T
35428ad94ecSAlessandro Rubini	select HAVE_CLK
35528ad94ecSAlessandro Rubini	select COMMON_CLKDEV
35628ad94ecSAlessandro Rubini	select GENERIC_TIME
35728ad94ecSAlessandro Rubini	select GENERIC_CLOCKEVENTS
3582ec1d359SAlessandro Rubini	select GENERIC_GPIO
3592ec1d359SAlessandro Rubini	select ARCH_REQUIRE_GPIOLIB
36028ad94ecSAlessandro Rubini	help
36128ad94ecSAlessandro Rubini	  Support for the Nomadik platform by ST-Ericsson
36228ad94ecSAlessandro Rubini
3633b938be6SRussell Kingconfig ARCH_IOP13XX
3643b938be6SRussell King	bool "IOP13xx-based"
3653b938be6SRussell King	depends on MMU
366c750815eSRussell King	select CPU_XSC3
3673b938be6SRussell King	select PLAT_IOP
3683b938be6SRussell King	select PCI
3693b938be6SRussell King	select ARCH_SUPPORTS_MSI
3708d5796d2SLennert Buytenhek	select VMSPLIT_1G
3713b938be6SRussell King	help
3723b938be6SRussell King	  Support for Intel's IOP13XX (XScale) family of processors.
3733b938be6SRussell King
3743f7e5815SLennert Buytenhekconfig ARCH_IOP32X
3753f7e5815SLennert Buytenhek	bool "IOP32x-based"
376a4f7e763SRussell King	depends on MMU
377c750815eSRussell King	select CPU_XSCALE
3787ae1f7ecSLennert Buytenhek	select PLAT_IOP
379f7e68bbfSRussell King	select PCI
38063f385cdSArnaud Patard	select GENERIC_GPIO
381bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
382f999b8bdSMartin Michlmayr	help
3833f7e5815SLennert Buytenhek	  Support for Intel's 80219 and IOP32X (XScale) family of
3843f7e5815SLennert Buytenhek	  processors.
3853f7e5815SLennert Buytenhek
3863f7e5815SLennert Buytenhekconfig ARCH_IOP33X
3873f7e5815SLennert Buytenhek	bool "IOP33x-based"
3883f7e5815SLennert Buytenhek	depends on MMU
389c750815eSRussell King	select CPU_XSCALE
3907ae1f7ecSLennert Buytenhek	select PLAT_IOP
3913f7e5815SLennert Buytenhek	select PCI
39263f385cdSArnaud Patard	select GENERIC_GPIO
393bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
3943f7e5815SLennert Buytenhek	help
3953f7e5815SLennert Buytenhek	  Support for Intel's IOP33X (XScale) family of processors.
3961da177e4SLinus Torvalds
3973b938be6SRussell Kingconfig ARCH_IXP23XX
3983b938be6SRussell King 	bool "IXP23XX-based"
399588ef769SDan Williams	depends on MMU
400c750815eSRussell King	select CPU_XSC3
401285f5fa7SDan Williams 	select PCI
402285f5fa7SDan Williams	help
4033b938be6SRussell King	  Support for Intel's IXP23xx (XScale) family of processors.
4041da177e4SLinus Torvalds
4051da177e4SLinus Torvaldsconfig ARCH_IXP2000
4061da177e4SLinus Torvalds	bool "IXP2400/2800-based"
407a4f7e763SRussell King	depends on MMU
408c750815eSRussell King	select CPU_XSCALE
409f7e68bbfSRussell King	select PCI
410f999b8bdSMartin Michlmayr	help
411f999b8bdSMartin Michlmayr	  Support for Intel's IXP2400/2800 (XScale) family of processors.
4121da177e4SLinus Torvalds
4133b938be6SRussell Kingconfig ARCH_IXP4XX
4143b938be6SRussell King	bool "IXP4xx-based"
415a4f7e763SRussell King	depends on MMU
416c750815eSRussell King	select CPU_XSCALE
4178858e9afSMilan Svoboda	select GENERIC_GPIO
4183b938be6SRussell King	select GENERIC_TIME
4193b938be6SRussell King	select GENERIC_CLOCKEVENTS
420485bdde7SRussell King	select DMABOUNCE if PCI
421c4713074SLennert Buytenhek	help
4223b938be6SRussell King	  Support for Intel's IXP4XX (XScale) family of processors.
423c4713074SLennert Buytenhek
4241da177e4SLinus Torvaldsconfig ARCH_L7200
4251da177e4SLinus Torvalds	bool "LinkUp-L7200"
426c750815eSRussell King	select CPU_ARM720T
4271da177e4SLinus Torvalds	select FIQ
4281da177e4SLinus Torvalds	help
4291da177e4SLinus Torvalds	  Say Y here if you intend to run this kernel on a LinkUp Systems
4301da177e4SLinus Torvalds	  L7200 Software Development Board which uses an ARM720T processor.
4311da177e4SLinus Torvalds	  Information on this board can be obtained at:
4321da177e4SLinus Torvalds
4331da177e4SLinus Torvalds	  <http://www.linkupsys.com/>
4341da177e4SLinus Torvalds
4351da177e4SLinus Torvalds	  If you have any questions or comments about the Linux kernel port
4361da177e4SLinus Torvalds	  to this board, send e-mail to <sjhill@cotw.com>.
4371da177e4SLinus Torvalds
438edabd38eSSaeed Bisharaconfig ARCH_DOVE
439edabd38eSSaeed Bishara	bool "Marvell Dove"
440edabd38eSSaeed Bishara	select PCI
441edabd38eSSaeed Bishara	select GENERIC_GPIO
442edabd38eSSaeed Bishara	select ARCH_REQUIRE_GPIOLIB
443edabd38eSSaeed Bishara	select GENERIC_TIME
444edabd38eSSaeed Bishara	select GENERIC_CLOCKEVENTS
445edabd38eSSaeed Bishara	select PLAT_ORION
446edabd38eSSaeed Bishara	help
447edabd38eSSaeed Bishara	  Support for the Marvell Dove SoC 88AP510
448edabd38eSSaeed Bishara
449651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD
450651c74c7SSaeed Bishara	bool "Marvell Kirkwood"
451c750815eSRussell King	select CPU_FEROCEON
452651c74c7SSaeed Bishara	select PCI
4534c213430SLennert Buytenhek	select GENERIC_GPIO
454a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
455651c74c7SSaeed Bishara	select GENERIC_TIME
456651c74c7SSaeed Bishara	select GENERIC_CLOCKEVENTS
457651c74c7SSaeed Bishara	select PLAT_ORION
458651c74c7SSaeed Bishara	help
459651c74c7SSaeed Bishara	  Support for the following Marvell Kirkwood series SoCs:
460651c74c7SSaeed Bishara	  88F6180, 88F6192 and 88F6281.
461651c74c7SSaeed Bishara
462788c9700SRussell Kingconfig ARCH_LOKI
463788c9700SRussell King	bool "Marvell Loki (88RC8480)"
464788c9700SRussell King	select CPU_FEROCEON
465788c9700SRussell King	select GENERIC_TIME
466788c9700SRussell King	select GENERIC_CLOCKEVENTS
467788c9700SRussell King	select PLAT_ORION
468788c9700SRussell King	help
469788c9700SRussell King	  Support for the Marvell Loki (88RC8480) SoC.
470788c9700SRussell King
471788c9700SRussell Kingconfig ARCH_MV78XX0
472788c9700SRussell King	bool "Marvell MV78xx0"
473788c9700SRussell King	select CPU_FEROCEON
474788c9700SRussell King	select PCI
475788c9700SRussell King	select GENERIC_GPIO
476a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
477788c9700SRussell King	select GENERIC_TIME
478788c9700SRussell King	select GENERIC_CLOCKEVENTS
479788c9700SRussell King	select PLAT_ORION
480788c9700SRussell King	help
481788c9700SRussell King	  Support for the following Marvell MV78xx0 series SoCs:
482788c9700SRussell King	  MV781x0, MV782x0.
483788c9700SRussell King
484788c9700SRussell Kingconfig ARCH_ORION5X
485788c9700SRussell King	bool "Marvell Orion"
486788c9700SRussell King	depends on MMU
487788c9700SRussell King	select CPU_FEROCEON
488788c9700SRussell King	select PCI
489788c9700SRussell King	select GENERIC_GPIO
490a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
491788c9700SRussell King	select GENERIC_TIME
492788c9700SRussell King	select GENERIC_CLOCKEVENTS
493788c9700SRussell King	select PLAT_ORION
494788c9700SRussell King	help
495788c9700SRussell King	  Support for the following Marvell Orion 5x series SoCs:
496788c9700SRussell King	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
497788c9700SRussell King	  Orion-2 (5281), Orion-1-90 (6183).
498788c9700SRussell King
499788c9700SRussell Kingconfig ARCH_MMP
500788c9700SRussell King	bool "Marvell PXA168/910"
501788c9700SRussell King	depends on MMU
502788c9700SRussell King	select GENERIC_GPIO
503788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
504788c9700SRussell King	select HAVE_CLK
505788c9700SRussell King	select COMMON_CLKDEV
506788c9700SRussell King	select GENERIC_TIME
507788c9700SRussell King	select GENERIC_CLOCKEVENTS
508788c9700SRussell King	select TICK_ONESHOT
509788c9700SRussell King	select PLAT_PXA
510788c9700SRussell King	help
511788c9700SRussell King	  Support for Marvell's PXA168/910 processor line.
512788c9700SRussell King
513c53c9cf6SAndrew Victorconfig ARCH_KS8695
514c53c9cf6SAndrew Victor	bool "Micrel/Kendin KS8695"
515c750815eSRussell King	select CPU_ARM922T
5168a87a996SAndrew Victor	select GENERIC_GPIO
51772880ad8SDaniel Silverstone        select ARCH_REQUIRE_GPIOLIB
518c53c9cf6SAndrew Victor	help
519c53c9cf6SAndrew Victor	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
520c53c9cf6SAndrew Victor	  System-on-Chip devices.
521c53c9cf6SAndrew Victor
5229918cda5SUwe Kleine-Königconfig ARCH_NS9XXX
5239918cda5SUwe Kleine-König	bool "NetSilicon NS9xxx"
524c750815eSRussell King	select CPU_ARM926T
525689f2a01SUwe Kleine-König	select GENERIC_GPIO
526cef5975dSUwe Kleine-König	select GENERIC_TIME
527c0bb87f7SUwe Kleine-König	select GENERIC_CLOCKEVENTS
5289483a578SDavid Brownell	select HAVE_CLK
5299918cda5SUwe Kleine-König	help
5309918cda5SUwe Kleine-König	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
5319918cda5SUwe Kleine-König	  System.
5329918cda5SUwe Kleine-König
5339918cda5SUwe Kleine-König	  <http://www.digi.com/products/microprocessors/index.jsp>
5349918cda5SUwe Kleine-König
535788c9700SRussell Kingconfig ARCH_W90X900
536788c9700SRussell King	bool "Nuvoton W90X900 CPU"
537788c9700SRussell King	select CPU_ARM926T
538c52d3d68Swanzongshun	select ARCH_REQUIRE_GPIOLIB
539c52d3d68Swanzongshun	select GENERIC_GPIO
540d2c24195Swanzongshun	select HAVE_CLK
5410e4a34bbSwanzongshun	select COMMON_CLKDEV
54258b5369eSwanzongshun	select GENERIC_TIME
54358b5369eSwanzongshun	select GENERIC_CLOCKEVENTS
544777f9bebSLennert Buytenhek	help
545a8bc4eadSwanzongshun	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
546a8bc4eadSwanzongshun	  At present, the w90x900 has been renamed nuc900, regarding
547a8bc4eadSwanzongshun	  the ARM series product line, you can login the following
548a8bc4eadSwanzongshun	  link address to know more.
549a8bc4eadSwanzongshun
550a8bc4eadSwanzongshun	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
551a8bc4eadSwanzongshun		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
552585cf175STzachi Perelstein
5534af6fee1SDeepak Saxenaconfig ARCH_PNX4008
5544af6fee1SDeepak Saxena	bool "Philips Nexperia PNX4008 Mobile"
555c750815eSRussell King	select CPU_ARM926T
5569483a578SDavid Brownell	select HAVE_CLK
5574af6fee1SDeepak Saxena	help
5584af6fee1SDeepak Saxena	  This enables support for Philips PNX4008 mobile platform.
5594af6fee1SDeepak Saxena
5601da177e4SLinus Torvaldsconfig ARCH_PXA
5612c8086a5Seric miao	bool "PXA2xx/PXA3xx-based"
562a4f7e763SRussell King	depends on MMU
563034d2f5aSAl Viro	select ARCH_MTD_XIP
56489c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
5650a938b97SDavid Brownell	select GENERIC_GPIO
5669483a578SDavid Brownell	select HAVE_CLK
5678c3abc7dSRussell King	select COMMON_CLKDEV
5687444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
56945cf5eefSNicolas Pitre	select GENERIC_TIME
570981d0f39SEric Miao	select GENERIC_CLOCKEVENTS
571a88264c2SRussell King	select TICK_ONESHOT
572bd5ce433SEric Miao	select PLAT_PXA
573f999b8bdSMartin Michlmayr	help
5742c8086a5Seric miao	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
5751da177e4SLinus Torvalds
576788c9700SRussell Kingconfig ARCH_MSM
577788c9700SRussell King	bool "Qualcomm MSM"
578788c9700SRussell King	select CPU_V6
57949cbe786SEric Miao	select GENERIC_TIME
58049cbe786SEric Miao	select GENERIC_CLOCKEVENTS
58149cbe786SEric Miao	help
582788c9700SRussell King	  Support for Qualcomm MSM7K based systems.  This runs on the ARM11
583788c9700SRussell King	  apps processor of the MSM7K and depends on a shared memory
584788c9700SRussell King	  interface to the ARM9 modem processor which runs the baseband stack
585788c9700SRussell King	  and controls some vital subsystems (clock and power control, etc).
58649cbe786SEric Miao
5871da177e4SLinus Torvaldsconfig ARCH_RPC
5881da177e4SLinus Torvalds	bool "RiscPC"
5891da177e4SLinus Torvalds	select ARCH_ACORN
5901da177e4SLinus Torvalds	select FIQ
5911da177e4SLinus Torvalds	select TIMER_ACORN
592a08b6b79Sviro@ZenIV.linux.org.uk	select ARCH_MAY_HAVE_PC_FDC
593341eb781SBen Dooks	select HAVE_PATA_PLATFORM
594065909b9SRussell King	select ISA_DMA_API
5955ea81769SAl Viro	select NO_IOPORT
59607f841b7SRussell King	select ARCH_SPARSEMEM_ENABLE
5971da177e4SLinus Torvalds	help
5981da177e4SLinus Torvalds	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
5991da177e4SLinus Torvalds	  CD-ROM interface, serial and parallel port, and the floppy drive.
6001da177e4SLinus Torvalds
6011da177e4SLinus Torvaldsconfig ARCH_SA1100
6021da177e4SLinus Torvalds	bool "SA1100-based"
603c750815eSRussell King	select CPU_SA1100
604f7e68bbfSRussell King	select ISA
60505944d74SRussell King	select ARCH_SPARSEMEM_ENABLE
606034d2f5aSAl Viro	select ARCH_MTD_XIP
60789c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
6081937f5b9SRussell King	select CPU_FREQ
6090a938b97SDavid Brownell	select GENERIC_GPIO
610d142b6e7SRussell King	select GENERIC_TIME
6113e238be2SRussell King	select GENERIC_CLOCKEVENTS
6129483a578SDavid Brownell	select HAVE_CLK
6133e238be2SRussell King	select TICK_ONESHOT
6147444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
615f999b8bdSMartin Michlmayr	help
616f999b8bdSMartin Michlmayr	  Support for StrongARM 11x0 based boards.
6171da177e4SLinus Torvalds
6181da177e4SLinus Torvaldsconfig ARCH_S3C2410
619e4d06e39SBen Dooks	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
6200a938b97SDavid Brownell	select GENERIC_GPIO
6219d56c02aSBen Dooks	select ARCH_HAS_CPUFREQ
6229483a578SDavid Brownell	select HAVE_CLK
6231da177e4SLinus Torvalds	help
6241da177e4SLinus Torvalds	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
6251da177e4SLinus Torvalds	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
626f6c8965aSMartin Michlmayr	  the Samsung SMDK2410 development board (and derivatives).
6271da177e4SLinus Torvalds
628a08ab637SBen Dooksconfig ARCH_S3C64XX
629a08ab637SBen Dooks	bool "Samsung S3C64XX"
63089f1fa08SBen Dooks	select PLAT_SAMSUNG
63189f0ce72SBen Dooks	select CPU_V6
632a08ab637SBen Dooks	select GENERIC_GPIO
63389f0ce72SBen Dooks	select ARM_VIC
634a08ab637SBen Dooks	select HAVE_CLK
63589f0ce72SBen Dooks	select NO_IOPORT
63689c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
63789f0ce72SBen Dooks	select ARCH_REQUIRE_GPIOLIB
63889f0ce72SBen Dooks	select SAMSUNG_CLKSRC
63989f0ce72SBen Dooks	select SAMSUNG_IRQ_VIC_TIMER
64089f0ce72SBen Dooks	select SAMSUNG_IRQ_UART
64189f0ce72SBen Dooks	select S3C_GPIO_TRACK
64289f0ce72SBen Dooks	select S3C_GPIO_PULL_UPDOWN
64389f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C24XX
64489f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C64XX
64589f0ce72SBen Dooks	select S3C_DEV_NAND
64689f0ce72SBen Dooks	select USB_ARCH_HAS_OHCI
64789f0ce72SBen Dooks	select SAMSUNG_GPIOLIB_4BIT
648a08ab637SBen Dooks	help
649a08ab637SBen Dooks	  Samsung S3C64XX series based systems
650a08ab637SBen Dooks
651c4ffccddSKukjin Kimconfig ARCH_S5P6440
652c4ffccddSKukjin Kim	bool "Samsung S5P6440"
653c4ffccddSKukjin Kim	select CPU_V6
654c4ffccddSKukjin Kim	select GENERIC_GPIO
655c4ffccddSKukjin Kim	select HAVE_CLK
656c4ffccddSKukjin Kim	help
657c4ffccddSKukjin Kim	  Samsung S5P6440 CPU based systems
658c4ffccddSKukjin Kim
659*550db7f1SKukjin Kimconfig ARCH_S5P6442
660*550db7f1SKukjin Kim	bool "Samsung S5P6442"
661*550db7f1SKukjin Kim	select CPU_V6
662*550db7f1SKukjin Kim	select GENERIC_GPIO
663*550db7f1SKukjin Kim	select HAVE_CLK
664*550db7f1SKukjin Kim	help
665*550db7f1SKukjin Kim	  Samsung S5P6442 CPU based systems
666*550db7f1SKukjin Kim
6675a7652f2SByungho Minconfig ARCH_S5PC1XX
6685a7652f2SByungho Min	bool "Samsung S5PC1XX"
6695a7652f2SByungho Min	select GENERIC_GPIO
6705a7652f2SByungho Min	select HAVE_CLK
6715a7652f2SByungho Min	select CPU_V7
6725a7652f2SByungho Min	help
6735a7652f2SByungho Min	  Samsung S5PC1XX series based systems
6745a7652f2SByungho Min
6751da177e4SLinus Torvaldsconfig ARCH_SHARK
6761da177e4SLinus Torvalds	bool "Shark"
677c750815eSRussell King	select CPU_SA110
678f7e68bbfSRussell King	select ISA
679f7e68bbfSRussell King	select ISA_DMA
6803bca103aSNicolas Pitre	select ZONE_DMA
681f7e68bbfSRussell King	select PCI
682f999b8bdSMartin Michlmayr	help
683f999b8bdSMartin Michlmayr	  Support for the StrongARM based Digital DNARD machine, also known
684f999b8bdSMartin Michlmayr	  as "Shark" (<http://www.shark-linux.de/shark.html>).
6851da177e4SLinus Torvalds
6861da177e4SLinus Torvaldsconfig ARCH_LH7A40X
6871da177e4SLinus Torvalds	bool "Sharp LH7A40X"
688c750815eSRussell King	select CPU_ARM922T
6894ba3f7c5SRussell King	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
6904ba3f7c5SRussell King	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
6911da177e4SLinus Torvalds	help
6921da177e4SLinus Torvalds	  Say Y here for systems based on one of the Sharp LH7A40X
6931da177e4SLinus Torvalds	  System on a Chip processors.  These CPUs include an ARM922T
6941da177e4SLinus Torvalds	  core with a wide array of integrated devices for
6951da177e4SLinus Torvalds	  hand-held and low-power applications.
6961da177e4SLinus Torvalds
697d98aac75SLinus Walleijconfig ARCH_U300
698d98aac75SLinus Walleij	bool "ST-Ericsson U300 Series"
699d98aac75SLinus Walleij	depends on MMU
700d98aac75SLinus Walleij	select CPU_ARM926T
701bc581770SLinus Walleij	select HAVE_TCM
702d98aac75SLinus Walleij	select ARM_AMBA
703d98aac75SLinus Walleij	select ARM_VIC
704d98aac75SLinus Walleij	select GENERIC_TIME
705d98aac75SLinus Walleij	select GENERIC_CLOCKEVENTS
706d98aac75SLinus Walleij	select HAVE_CLK
707d98aac75SLinus Walleij	select COMMON_CLKDEV
708d98aac75SLinus Walleij	select GENERIC_GPIO
709d98aac75SLinus Walleij	help
710d98aac75SLinus Walleij	  Support for ST-Ericsson U300 series mobile platforms.
711d98aac75SLinus Walleij
7127c6337e2SKevin Hilmanconfig ARCH_DAVINCI
7137c6337e2SKevin Hilman	bool "TI DaVinci"
714c750815eSRussell King	select CPU_ARM926T
7157c6337e2SKevin Hilman	select GENERIC_TIME
7167c6337e2SKevin Hilman	select GENERIC_CLOCKEVENTS
7173d9edf09SVladimir Barinov	select GENERIC_GPIO
718dce1115bSDavid Brownell	select ARCH_REQUIRE_GPIOLIB
7199483a578SDavid Brownell	select HAVE_CLK
7203bca103aSNicolas Pitre	select ZONE_DMA
7219232fcc9SKevin Hilman	select HAVE_IDE
722c5b736d0SKevin Hilman	select COMMON_CLKDEV
72320e9969bSDavid Brownell	select GENERIC_ALLOCATOR
724ae88e05aSSekhar Nori	select ARCH_HAS_HOLES_MEMORYMODEL
7257c6337e2SKevin Hilman	help
7267c6337e2SKevin Hilman	  Support for TI's DaVinci platform.
7277c6337e2SKevin Hilman
7283b938be6SRussell Kingconfig ARCH_OMAP
7293b938be6SRussell King	bool "TI OMAP"
7303b938be6SRussell King	select GENERIC_GPIO
7319483a578SDavid Brownell	select HAVE_CLK
7327444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
73389c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
7343b938be6SRussell King	select GENERIC_TIME
73506cad098SKevin Hilman	select GENERIC_CLOCKEVENTS
7363b938be6SRussell King	help
7373b938be6SRussell King	  Support for TI's OMAP platform (OMAP1 and OMAP2).
7383b938be6SRussell King
7396288e28dSLeo Chenconfig ARCH_BCMRING
7406288e28dSLeo Chen	bool "Broadcom BCMRING"
7416288e28dSLeo Chen	depends on MMU
7426288e28dSLeo Chen	select CPU_V6
7436288e28dSLeo Chen	select ARM_AMBA
7446288e28dSLeo Chen	select COMMON_CLKDEV
7456288e28dSLeo Chen	select GENERIC_TIME
7466288e28dSLeo Chen	select GENERIC_CLOCKEVENTS
7476288e28dSLeo Chen	select ARCH_WANT_OPTIONAL_GPIOLIB
7486288e28dSLeo Chen	help
7496288e28dSLeo Chen	  Support for Broadcom's BCMRing platform.
7506288e28dSLeo Chen
751850265e8SSrinidhi Kasagarconfig ARCH_U8500
752850265e8SSrinidhi Kasagar	bool "ST-Ericsson U8500 Series"
753850265e8SSrinidhi Kasagar	select CPU_V7
754850265e8SSrinidhi Kasagar	select ARM_AMBA
755850265e8SSrinidhi Kasagar	select GENERIC_TIME
756850265e8SSrinidhi Kasagar	select GENERIC_CLOCKEVENTS
757850265e8SSrinidhi Kasagar	select COMMON_CLKDEV
758850265e8SSrinidhi Kasagar	help
759850265e8SSrinidhi Kasagar	  Support for ST-Ericsson's Ux500 architecture
760850265e8SSrinidhi Kasagar
7611da177e4SLinus Torvaldsendchoice
7621da177e4SLinus Torvalds
7631da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig"
7641da177e4SLinus Torvalds
765e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig"
766e7736d47SLennert Buytenhek
7671da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig"
7681da177e4SLinus Torvalds
76959d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig"
77059d3a193SPaulius Zaleckas
7711da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig"
7721da177e4SLinus Torvalds
7733f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig"
7743f7e5815SLennert Buytenhek
7753f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig"
7761da177e4SLinus Torvalds
777285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig"
778285f5fa7SDan Williams
7791da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig"
7801da177e4SLinus Torvalds
7811da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig"
7821da177e4SLinus Torvalds
783c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig"
784c4713074SLennert Buytenhek
785777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig"
786777f9bebSLennert Buytenhek
787794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig"
788794d15b2SStanislav Samsonov
7891da177e4SLinus Torvaldssource "arch/arm/mach-pxa/Kconfig"
790bd5ce433SEric Miaosource "arch/arm/plat-pxa/Kconfig"
7911da177e4SLinus Torvalds
79249cbe786SEric Miaosource "arch/arm/mach-mmp/Kconfig"
79349cbe786SEric Miao
7941da177e4SLinus Torvaldssource "arch/arm/mach-sa1100/Kconfig"
7951da177e4SLinus Torvalds
796d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig"
797d48af15eSTony Lindgren
798d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig"
7991da177e4SLinus Torvalds
8001dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig"
8011dbae815STony Lindgren
8029dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig"
803585cf175STzachi Perelstein
804651c74c7SSaeed Bisharasource "arch/arm/mach-kirkwood/Kconfig"
8051da177e4SLinus Torvalds
806edabd38eSSaeed Bisharasource "arch/arm/mach-dove/Kconfig"
807edabd38eSSaeed Bishara
808cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig"
809a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig"
810c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig"
8115a7652f2SByungho Minsource "arch/arm/plat-s5pc1xx/Kconfig"
812a21765a7SBen Dooks
813a21765a7SBen Dooksif ARCH_S3C2410
814a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig"
8151da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig"
816a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig"
817a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig"
818e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig"
819a21765a7SBen Dooksendif
8201da177e4SLinus Torvalds
821a08ab637SBen Dooksif ARCH_S3C64XX
822431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig"
823a08ab637SBen Dooksendif
824a08ab637SBen Dooks
825c4ffccddSKukjin Kimsource "arch/arm/mach-s5p6440/Kconfig"
826c4ffccddSKukjin Kim
827*550db7f1SKukjin Kimsource "arch/arm/mach-s5p6442/Kconfig"
828*550db7f1SKukjin Kim
8297bd0f2f5Sdmitry pervushinsource "arch/arm/plat-stmp3xxx/Kconfig"
8307bd0f2f5Sdmitry pervushin
8315a7652f2SByungho Minif ARCH_S5PC1XX
8325a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig"
8335a7652f2SByungho Minendif
8345a7652f2SByungho Min
8351da177e4SLinus Torvaldssource "arch/arm/mach-lh7a40x/Kconfig"
8361da177e4SLinus Torvalds
8371da177e4SLinus Torvaldssource "arch/arm/mach-h720x/Kconfig"
8381da177e4SLinus Torvalds
8391da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig"
8401da177e4SLinus Torvalds
841038c5b60SBellido Nicolassource "arch/arm/mach-aaec2000/Kconfig"
842038c5b60SBellido Nicolas
8438ad68bbfSCatalin Marinassource "arch/arm/mach-realview/Kconfig"
8448ad68bbfSCatalin Marinas
8459d041268SAndrew Victorsource "arch/arm/mach-at91/Kconfig"
84673a59c1cSSAN People
84752c543f9SQuinn Jensensource "arch/arm/plat-mxc/Kconfig"
84852c543f9SQuinn Jensen
84928ad94ecSAlessandro Rubinisource "arch/arm/mach-nomadik/Kconfig"
85059b559d7SSrinidhi Kasagarsource "arch/arm/plat-nomadik/Kconfig"
85128ad94ecSAlessandro Rubini
852bb6d8c88SSascha Hauersource "arch/arm/mach-netx/Kconfig"
853bb6d8c88SSascha Hauer
8549918cda5SUwe Kleine-Königsource "arch/arm/mach-ns9xxx/Kconfig"
8559918cda5SUwe Kleine-König
8567c6337e2SKevin Hilmansource "arch/arm/mach-davinci/Kconfig"
8577c6337e2SKevin Hilman
858c53c9cf6SAndrew Victorsource "arch/arm/mach-ks8695/Kconfig"
859c53c9cf6SAndrew Victor
8609e73c84cSBrian Swetlandsource "arch/arm/mach-msm/Kconfig"
8619e73c84cSBrian Swetland
862d98aac75SLinus Walleijsource "arch/arm/mach-u300/Kconfig"
863d98aac75SLinus Walleij
8647ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig"
8657ec80ddfSwanzongshun
8666288e28dSLeo Chensource "arch/arm/mach-bcmring/Kconfig"
8676288e28dSLeo Chen
868850265e8SSrinidhi Kasagarsource "arch/arm/mach-ux500/Kconfig"
869850265e8SSrinidhi Kasagar
8701da177e4SLinus Torvalds# Definitions to make life easier
8711da177e4SLinus Torvaldsconfig ARCH_ACORN
8721da177e4SLinus Torvalds	bool
8731da177e4SLinus Torvalds
8747ae1f7ecSLennert Buytenhekconfig PLAT_IOP
8757ae1f7ecSLennert Buytenhek	bool
876469d3044SMikael Pettersson	select GENERIC_CLOCKEVENTS
877980f2296SMikael Pettersson	select GENERIC_TIME
8787ae1f7ecSLennert Buytenhek
87969b02f6aSLennert Buytenhekconfig PLAT_ORION
88069b02f6aSLennert Buytenhek	bool
88169b02f6aSLennert Buytenhek
882bd5ce433SEric Miaoconfig PLAT_PXA
883bd5ce433SEric Miao	bool
884bd5ce433SEric Miao
8851da177e4SLinus Torvaldssource arch/arm/mm/Kconfig
8861da177e4SLinus Torvalds
887afe4b25eSLennert Buytenhekconfig IWMMXT
888afe4b25eSLennert Buytenhek	bool "Enable iWMMXt support"
88940305a58SEric Miao	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
89040305a58SEric Miao	default y if PXA27x || PXA3xx || ARCH_MMP
891afe4b25eSLennert Buytenhek	help
892afe4b25eSLennert Buytenhek	  Enable support for iWMMXt context switching at run time if
893afe4b25eSLennert Buytenhek	  running on a CPU that supports it.
894afe4b25eSLennert Buytenhek
8951da177e4SLinus Torvalds#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
8961da177e4SLinus Torvaldsconfig XSCALE_PMU
8971da177e4SLinus Torvalds	bool
8981da177e4SLinus Torvalds	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
8991da177e4SLinus Torvalds	default y
9001da177e4SLinus Torvalds
9013b93e7b0SHyok S. Choiif !MMU
9023b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu"
9033b93e7b0SHyok S. Choiendif
9043b93e7b0SHyok S. Choi
9059cba3cccSCatalin Marinasconfig ARM_ERRATA_411920
9069cba3cccSCatalin Marinas	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
9079cba3cccSCatalin Marinas	depends on CPU_V6 && !SMP
9089cba3cccSCatalin Marinas	help
9099cba3cccSCatalin Marinas	  Invalidation of the Instruction Cache operation can
9109cba3cccSCatalin Marinas	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
9119cba3cccSCatalin Marinas	  It does not affect the MPCore. This option enables the ARM Ltd.
9129cba3cccSCatalin Marinas	  recommended workaround.
9139cba3cccSCatalin Marinas
9147ce236fcSCatalin Marinasconfig ARM_ERRATA_430973
9157ce236fcSCatalin Marinas	bool "ARM errata: Stale prediction on replaced interworking branch"
9167ce236fcSCatalin Marinas	depends on CPU_V7
9177ce236fcSCatalin Marinas	help
9187ce236fcSCatalin Marinas	  This option enables the workaround for the 430973 Cortex-A8
9197ce236fcSCatalin Marinas	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
9207ce236fcSCatalin Marinas	  interworking branch is replaced with another code sequence at the
9217ce236fcSCatalin Marinas	  same virtual address, whether due to self-modifying code or virtual
9227ce236fcSCatalin Marinas	  to physical address re-mapping, Cortex-A8 does not recover from the
9237ce236fcSCatalin Marinas	  stale interworking branch prediction. This results in Cortex-A8
9247ce236fcSCatalin Marinas	  executing the new code sequence in the incorrect ARM or Thumb state.
9257ce236fcSCatalin Marinas	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
9267ce236fcSCatalin Marinas	  and also flushes the branch target cache at every context switch.
9277ce236fcSCatalin Marinas	  Note that setting specific bits in the ACTLR register may not be
9287ce236fcSCatalin Marinas	  available in non-secure mode.
9297ce236fcSCatalin Marinas
930855c551fSCatalin Marinasconfig ARM_ERRATA_458693
931855c551fSCatalin Marinas	bool "ARM errata: Processor deadlock when a false hazard is created"
932855c551fSCatalin Marinas	depends on CPU_V7
933855c551fSCatalin Marinas	help
934855c551fSCatalin Marinas	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
935855c551fSCatalin Marinas	  erratum. For very specific sequences of memory operations, it is
936855c551fSCatalin Marinas	  possible for a hazard condition intended for a cache line to instead
937855c551fSCatalin Marinas	  be incorrectly associated with a different cache line. This false
938855c551fSCatalin Marinas	  hazard might then cause a processor deadlock. The workaround enables
939855c551fSCatalin Marinas	  the L1 caching of the NEON accesses and disables the PLD instruction
940855c551fSCatalin Marinas	  in the ACTLR register. Note that setting specific bits in the ACTLR
941855c551fSCatalin Marinas	  register may not be available in non-secure mode.
942855c551fSCatalin Marinas
9430516e464SCatalin Marinasconfig ARM_ERRATA_460075
9440516e464SCatalin Marinas	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
9450516e464SCatalin Marinas	depends on CPU_V7
9460516e464SCatalin Marinas	help
9470516e464SCatalin Marinas	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
9480516e464SCatalin Marinas	  erratum. Any asynchronous access to the L2 cache may encounter a
9490516e464SCatalin Marinas	  situation in which recent store transactions to the L2 cache are lost
9500516e464SCatalin Marinas	  and overwritten with stale memory contents from external memory. The
9510516e464SCatalin Marinas	  workaround disables the write-allocate mode for the L2 cache via the
9520516e464SCatalin Marinas	  ACTLR register. Note that setting specific bits in the ACTLR register
9530516e464SCatalin Marinas	  may not be available in non-secure mode.
9540516e464SCatalin Marinas
9551da177e4SLinus Torvaldsendmenu
9561da177e4SLinus Torvalds
9571da177e4SLinus Torvaldssource "arch/arm/common/Kconfig"
9581da177e4SLinus Torvalds
9591da177e4SLinus Torvaldsconfig FORCE_MAX_ZONEORDER
9601da177e4SLinus Torvalds	int
9611da177e4SLinus Torvalds	depends on SA1111
9621da177e4SLinus Torvalds	default "9"
9631da177e4SLinus Torvalds
9641da177e4SLinus Torvaldsmenu "Bus support"
9651da177e4SLinus Torvalds
9661da177e4SLinus Torvaldsconfig ARM_AMBA
9671da177e4SLinus Torvalds	bool
9681da177e4SLinus Torvalds
9691da177e4SLinus Torvaldsconfig ISA
9701da177e4SLinus Torvalds	bool
9711da177e4SLinus Torvalds	help
9721da177e4SLinus Torvalds	  Find out whether you have ISA slots on your motherboard.  ISA is the
9731da177e4SLinus Torvalds	  name of a bus system, i.e. the way the CPU talks to the other stuff
9741da177e4SLinus Torvalds	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
9751da177e4SLinus Torvalds	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
9761da177e4SLinus Torvalds	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
9771da177e4SLinus Torvalds
978065909b9SRussell King# Select ISA DMA controller support
9791da177e4SLinus Torvaldsconfig ISA_DMA
9801da177e4SLinus Torvalds	bool
981065909b9SRussell King	select ISA_DMA_API
9821da177e4SLinus Torvalds
983065909b9SRussell King# Select ISA DMA interface
9845cae841bSAl Viroconfig ISA_DMA_API
9855cae841bSAl Viro	bool
9865cae841bSAl Viro
9871da177e4SLinus Torvaldsconfig PCI
988a0113a99SMike Rapoport	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
9891da177e4SLinus Torvalds	help
9901da177e4SLinus Torvalds	  Find out whether you have a PCI motherboard. PCI is the name of a
9911da177e4SLinus Torvalds	  bus system, i.e. the way the CPU talks to the other stuff inside
9921da177e4SLinus Torvalds	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
9931da177e4SLinus Torvalds	  VESA. If you have PCI, say Y, otherwise N.
9941da177e4SLinus Torvalds
99536e23590SMatthew Wilcoxconfig PCI_SYSCALL
99636e23590SMatthew Wilcox	def_bool PCI
99736e23590SMatthew Wilcox
9981da177e4SLinus Torvalds# Select the host bridge type
9991da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505
10001da177e4SLinus Torvalds	bool
10011da177e4SLinus Torvalds	depends on PCI && ARCH_SHARK
10021da177e4SLinus Torvalds	default y
10031da177e4SLinus Torvalds
1004a0113a99SMike Rapoportconfig PCI_HOST_ITE8152
1005a0113a99SMike Rapoport	bool
1006a0113a99SMike Rapoport	depends on PCI && MACH_ARMCORE
1007a0113a99SMike Rapoport	default y
1008a0113a99SMike Rapoport	select DMABOUNCE
1009a0113a99SMike Rapoport
10101da177e4SLinus Torvaldssource "drivers/pci/Kconfig"
10111da177e4SLinus Torvalds
10121da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig"
10131da177e4SLinus Torvalds
10141da177e4SLinus Torvaldsendmenu
10151da177e4SLinus Torvalds
10161da177e4SLinus Torvaldsmenu "Kernel Features"
10171da177e4SLinus Torvalds
10180567a0c0SKevin Hilmansource "kernel/time/Kconfig"
10190567a0c0SKevin Hilman
10201da177e4SLinus Torvaldsconfig SMP
10211da177e4SLinus Torvalds	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
102242578c82SRussell King	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
1023850265e8SSrinidhi Kasagar		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1024bc28248eSRussell King	depends on GENERIC_CLOCKEVENTS
1025f6dd9fa5SJens Axboe	select USE_GENERIC_SMP_HELPERS
1026850265e8SSrinidhi Kasagar	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
10271da177e4SLinus Torvalds	help
10281da177e4SLinus Torvalds	  This enables support for systems with more than one CPU. If you have
10291da177e4SLinus Torvalds	  a system with only one CPU, like most personal computers, say N. If
10301da177e4SLinus Torvalds	  you have a system with more than one CPU, say Y.
10311da177e4SLinus Torvalds
10321da177e4SLinus Torvalds	  If you say N here, the kernel will run on single and multiprocessor
10331da177e4SLinus Torvalds	  machines, but will use only one CPU of a multiprocessor machine. If
10341da177e4SLinus Torvalds	  you say Y here, the kernel will run on many, but not all, single
10351da177e4SLinus Torvalds	  processor machines. On a single processor machine, the kernel will
10361da177e4SLinus Torvalds	  run faster if you say N here.
10371da177e4SLinus Torvalds
103803502faaSAdrian Bunk	  See also <file:Documentation/i386/IO-APIC.txt>,
10391da177e4SLinus Torvalds	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
10401da177e4SLinus Torvalds	  <http://www.linuxdoc.org/docs.html#howto>.
10411da177e4SLinus Torvalds
10421da177e4SLinus Torvalds	  If you don't know what to do here, say N.
10431da177e4SLinus Torvalds
1044a8cbcd92SRussell Kingconfig HAVE_ARM_SCU
1045a8cbcd92SRussell King	bool
1046a8cbcd92SRussell King	depends on SMP
1047a8cbcd92SRussell King	help
1048a8cbcd92SRussell King	  This option enables support for the ARM system coherency unit
1049a8cbcd92SRussell King
1050f32f4ce2SRussell Kingconfig HAVE_ARM_TWD
1051f32f4ce2SRussell King	bool
1052f32f4ce2SRussell King	depends on SMP
1053f32f4ce2SRussell King	help
1054f32f4ce2SRussell King	  This options enables support for the ARM timer and watchdog unit
1055f32f4ce2SRussell King
10568d5796d2SLennert Buytenhekchoice
10578d5796d2SLennert Buytenhek	prompt "Memory split"
10588d5796d2SLennert Buytenhek	default VMSPLIT_3G
10598d5796d2SLennert Buytenhek	help
10608d5796d2SLennert Buytenhek	  Select the desired split between kernel and user memory.
10618d5796d2SLennert Buytenhek
10628d5796d2SLennert Buytenhek	  If you are not absolutely sure what you are doing, leave this
10638d5796d2SLennert Buytenhek	  option alone!
10648d5796d2SLennert Buytenhek
10658d5796d2SLennert Buytenhek	config VMSPLIT_3G
10668d5796d2SLennert Buytenhek		bool "3G/1G user/kernel split"
10678d5796d2SLennert Buytenhek	config VMSPLIT_2G
10688d5796d2SLennert Buytenhek		bool "2G/2G user/kernel split"
10698d5796d2SLennert Buytenhek	config VMSPLIT_1G
10708d5796d2SLennert Buytenhek		bool "1G/3G user/kernel split"
10718d5796d2SLennert Buytenhekendchoice
10728d5796d2SLennert Buytenhek
10738d5796d2SLennert Buytenhekconfig PAGE_OFFSET
10748d5796d2SLennert Buytenhek	hex
10758d5796d2SLennert Buytenhek	default 0x40000000 if VMSPLIT_1G
10768d5796d2SLennert Buytenhek	default 0x80000000 if VMSPLIT_2G
10778d5796d2SLennert Buytenhek	default 0xC0000000
10788d5796d2SLennert Buytenhek
10791da177e4SLinus Torvaldsconfig NR_CPUS
10801da177e4SLinus Torvalds	int "Maximum number of CPUs (2-32)"
10811da177e4SLinus Torvalds	range 2 32
10821da177e4SLinus Torvalds	depends on SMP
10831da177e4SLinus Torvalds	default "4"
10841da177e4SLinus Torvalds
1085a054a811SRussell Kingconfig HOTPLUG_CPU
1086a054a811SRussell King	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1087a054a811SRussell King	depends on SMP && HOTPLUG && EXPERIMENTAL
1088a054a811SRussell King	help
1089a054a811SRussell King	  Say Y here to experiment with turning CPUs off and on.  CPUs
1090a054a811SRussell King	  can be controlled through /sys/devices/system/cpu.
1091a054a811SRussell King
109237ee16aeSRussell Kingconfig LOCAL_TIMERS
109337ee16aeSRussell King	bool "Use local timer interrupts"
109442578c82SRussell King	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1095850265e8SSrinidhi Kasagar		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
109637ee16aeSRussell King	default y
1097850265e8SSrinidhi Kasagar	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
109837ee16aeSRussell King	help
109937ee16aeSRussell King	  Enable support for local timers on SMP platforms, rather then the
110037ee16aeSRussell King	  legacy IPI broadcast method.  Local timers allows the system
110137ee16aeSRussell King	  accounting to be spread across the timer interval, preventing a
110237ee16aeSRussell King	  "thundering herd" at every timer tick.
110337ee16aeSRussell King
1104d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt
11051da177e4SLinus Torvalds
1106f8065813SRussell Kingconfig HZ
1107f8065813SRussell King	int
1108f8065813SRussell King	default 128 if ARCH_L7200
1109*550db7f1SKukjin Kim	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442
1110bfe65704SRussell King	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
11115248c657SDavid Brownell	default AT91_TIMER_HZ if ARCH_AT91
1112f8065813SRussell King	default 100
1113f8065813SRussell King
111416c79651SCatalin Marinasconfig THUMB2_KERNEL
111516c79651SCatalin Marinas	bool "Compile the kernel in Thumb-2 mode"
111616c79651SCatalin Marinas	depends on CPU_V7 && EXPERIMENTAL
111716c79651SCatalin Marinas	select AEABI
111816c79651SCatalin Marinas	select ARM_ASM_UNIFIED
111916c79651SCatalin Marinas	help
112016c79651SCatalin Marinas	  By enabling this option, the kernel will be compiled in
112116c79651SCatalin Marinas	  Thumb-2 mode. A compiler/assembler that understand the unified
112216c79651SCatalin Marinas	  ARM-Thumb syntax is needed.
112316c79651SCatalin Marinas
112416c79651SCatalin Marinas	  If unsure, say N.
112516c79651SCatalin Marinas
11260becb088SCatalin Marinasconfig ARM_ASM_UNIFIED
11270becb088SCatalin Marinas	bool
11280becb088SCatalin Marinas
1129704bdda0SNicolas Pitreconfig AEABI
1130704bdda0SNicolas Pitre	bool "Use the ARM EABI to compile the kernel"
1131704bdda0SNicolas Pitre	help
1132704bdda0SNicolas Pitre	  This option allows for the kernel to be compiled using the latest
1133704bdda0SNicolas Pitre	  ARM ABI (aka EABI).  This is only useful if you are using a user
1134704bdda0SNicolas Pitre	  space environment that is also compiled with EABI.
1135704bdda0SNicolas Pitre
1136704bdda0SNicolas Pitre	  Since there are major incompatibilities between the legacy ABI and
1137704bdda0SNicolas Pitre	  EABI, especially with regard to structure member alignment, this
1138704bdda0SNicolas Pitre	  option also changes the kernel syscall calling convention to
1139704bdda0SNicolas Pitre	  disambiguate both ABIs and allow for backward compatibility support
1140704bdda0SNicolas Pitre	  (selected with CONFIG_OABI_COMPAT).
1141704bdda0SNicolas Pitre
1142704bdda0SNicolas Pitre	  To use this you need GCC version 4.0.0 or later.
1143704bdda0SNicolas Pitre
11446c90c872SNicolas Pitreconfig OABI_COMPAT
1145a73a3ff1SRussell King	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
114661c484d4SNicolas Pitre	depends on AEABI && EXPERIMENTAL
11476c90c872SNicolas Pitre	default y
11486c90c872SNicolas Pitre	help
11496c90c872SNicolas Pitre	  This option preserves the old syscall interface along with the
11506c90c872SNicolas Pitre	  new (ARM EABI) one. It also provides a compatibility layer to
11516c90c872SNicolas Pitre	  intercept syscalls that have structure arguments which layout
11526c90c872SNicolas Pitre	  in memory differs between the legacy ABI and the new ARM EABI
11536c90c872SNicolas Pitre	  (only for non "thumb" binaries). This option adds a tiny
11546c90c872SNicolas Pitre	  overhead to all syscalls and produces a slightly larger kernel.
11556c90c872SNicolas Pitre	  If you know you'll be using only pure EABI user space then you
11566c90c872SNicolas Pitre	  can say N here. If this option is not selected and you attempt
11576c90c872SNicolas Pitre	  to execute a legacy ABI binary then the result will be
11586c90c872SNicolas Pitre	  UNPREDICTABLE (in fact it can be predicted that it won't work
11596c90c872SNicolas Pitre	  at all). If in doubt say Y.
11606c90c872SNicolas Pitre
1161eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL
1162e80d6a24SMel Gorman	bool
1163e80d6a24SMel Gorman
116407a2f737SRussell King# Discontigmem is deprecated
11653f22ab27SDave Hansenconfig ARCH_DISCONTIGMEM_ENABLE
11661da177e4SLinus Torvalds	bool
11671da177e4SLinus Torvalds
116805944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE
116905944d74SRussell King	bool
117005944d74SRussell King
117107a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT
117207a2f737SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
117307a2f737SRussell King
117405944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL
117507a2f737SRussell King	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
117605944d74SRussell King
1177c80d79d7SYasunori Gotoconfig NODES_SHIFT
1178c80d79d7SYasunori Goto	int
1179c80d79d7SYasunori Goto	default "4" if ARCH_LH7A40X
1180c80d79d7SYasunori Goto	default "2"
1181c80d79d7SYasunori Goto	depends on NEED_MULTIPLE_NODES
1182c80d79d7SYasunori Goto
1183053a96caSNicolas Pitreconfig HIGHMEM
1184053a96caSNicolas Pitre	bool "High Memory Support (EXPERIMENTAL)"
1185053a96caSNicolas Pitre	depends on MMU && EXPERIMENTAL
1186053a96caSNicolas Pitre	help
1187053a96caSNicolas Pitre	  The address space of ARM processors is only 4 Gigabytes large
1188053a96caSNicolas Pitre	  and it has to accommodate user address space, kernel address
1189053a96caSNicolas Pitre	  space as well as some memory mapped IO. That means that, if you
1190053a96caSNicolas Pitre	  have a large amount of physical memory and/or IO, not all of the
1191053a96caSNicolas Pitre	  memory can be "permanently mapped" by the kernel. The physical
1192053a96caSNicolas Pitre	  memory that is not permanently mapped is called "high memory".
1193053a96caSNicolas Pitre
1194053a96caSNicolas Pitre	  Depending on the selected kernel/user memory split, minimum
1195053a96caSNicolas Pitre	  vmalloc space and actual amount of RAM, you may not need this
1196053a96caSNicolas Pitre	  option which should result in a slightly faster kernel.
1197053a96caSNicolas Pitre
1198053a96caSNicolas Pitre	  If unsure, say n.
1199053a96caSNicolas Pitre
120065cec8e3SRussell Kingconfig HIGHPTE
120165cec8e3SRussell King	bool "Allocate 2nd-level pagetables from highmem"
120265cec8e3SRussell King	depends on HIGHMEM
120365cec8e3SRussell King	depends on !OUTER_CACHE
120465cec8e3SRussell King
12053f22ab27SDave Hansensource "mm/Kconfig"
12063f22ab27SDave Hansen
12071da177e4SLinus Torvaldsconfig LEDS
12081da177e4SLinus Torvalds	bool "Timer and CPU usage LEDs"
1209e055d5bfSAdrian Bunk	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
12108c8fdbc9SSascha Hauer		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
12111da177e4SLinus Torvalds		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
12121da177e4SLinus Torvalds		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
121373a59c1cSSAN People		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
121425329671SJürgen Schindele		   ARCH_AT91 || ARCH_DAVINCI || \
1215ff3042fbSColin Tuckley		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
12161da177e4SLinus Torvalds	help
12171da177e4SLinus Torvalds	  If you say Y here, the LEDs on your machine will be used
12181da177e4SLinus Torvalds	  to provide useful information about your current system status.
12191da177e4SLinus Torvalds
12201da177e4SLinus Torvalds	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
12211da177e4SLinus Torvalds	  be able to select which LEDs are active using the options below. If
12221da177e4SLinus Torvalds	  you are compiling a kernel for the EBSA-110 or the LART however, the
12231da177e4SLinus Torvalds	  red LED will simply flash regularly to indicate that the system is
12241da177e4SLinus Torvalds	  still functional. It is safe to say Y here if you have a CATS
12251da177e4SLinus Torvalds	  system, but the driver will do nothing.
12261da177e4SLinus Torvalds
12271da177e4SLinus Torvaldsconfig LEDS_TIMER
12281da177e4SLinus Torvalds	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1229eebdf7d7SDavid Brownell			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1230eebdf7d7SDavid Brownell			    || MACH_OMAP_PERSEUS2
12311da177e4SLinus Torvalds	depends on LEDS
12320567a0c0SKevin Hilman	depends on !GENERIC_CLOCKEVENTS
12331da177e4SLinus Torvalds	default y if ARCH_EBSA110
12341da177e4SLinus Torvalds	help
12351da177e4SLinus Torvalds	  If you say Y here, one of the system LEDs (the green one on the
12361da177e4SLinus Torvalds	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
12371da177e4SLinus Torvalds	  will flash regularly to indicate that the system is still
12381da177e4SLinus Torvalds	  operational. This is mainly useful to kernel hackers who are
12391da177e4SLinus Torvalds	  debugging unstable kernels.
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 LEDS_CPU
12461da177e4SLinus Torvalds	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1247eebdf7d7SDavid Brownell			!ARCH_OMAP) \
1248eebdf7d7SDavid Brownell			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1249eebdf7d7SDavid Brownell			|| MACH_OMAP_PERSEUS2
12501da177e4SLinus Torvalds	depends on LEDS
12511da177e4SLinus Torvalds	help
12521da177e4SLinus Torvalds	  If you say Y here, the red LED will be used to give a good real
12531da177e4SLinus Torvalds	  time indication of CPU usage, by lighting whenever the idle task
12541da177e4SLinus Torvalds	  is not currently executing.
12551da177e4SLinus Torvalds
12561da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
12571da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
12581da177e4SLinus Torvalds	  will overrule the CPU usage LED.
12591da177e4SLinus Torvalds
12601da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP
12611da177e4SLinus Torvalds	bool
1262f12d0d7cSHyok S. Choi	depends on CPU_CP15_MMU
12631da177e4SLinus Torvalds	default y if !ARCH_EBSA110
12641da177e4SLinus Torvalds	help
12651da177e4SLinus Torvalds	  ARM processors cannot fetch/store information which is not
12661da177e4SLinus Torvalds	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
12671da177e4SLinus Torvalds	  address divisible by 4. On 32-bit ARM processors, these non-aligned
12681da177e4SLinus Torvalds	  fetch/store instructions will be emulated in software if you say
12691da177e4SLinus Torvalds	  here, which has a severe performance impact. This is necessary for
12701da177e4SLinus Torvalds	  correct operation of some network protocols. With an IP-only
12711da177e4SLinus Torvalds	  configuration it is safe to say N, otherwise say Y.
12721da177e4SLinus Torvalds
127339ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY
127439ec58f3SLennert Buytenhek	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
127539ec58f3SLennert Buytenhek	depends on MMU && EXPERIMENTAL
127639ec58f3SLennert Buytenhek	default y if CPU_FEROCEON
127739ec58f3SLennert Buytenhek	help
127839ec58f3SLennert Buytenhek	  Implement faster copy_to_user and clear_user methods for CPU
127939ec58f3SLennert Buytenhek	  cores where a 8-word STM instruction give significantly higher
128039ec58f3SLennert Buytenhek	  memory write throughput than a sequence of individual 32bit stores.
128139ec58f3SLennert Buytenhek
128239ec58f3SLennert Buytenhek	  A possible side effect is a slight increase in scheduling latency
128339ec58f3SLennert Buytenhek	  between threads sharing the same address space if they invoke
128439ec58f3SLennert Buytenhek	  such copy operations with large buffers.
128539ec58f3SLennert Buytenhek
128639ec58f3SLennert Buytenhek	  However, if the CPU data cache is using a write-allocate mode,
128739ec58f3SLennert Buytenhek	  this option is unlikely to provide any performance gain.
128839ec58f3SLennert Buytenhek
12891da177e4SLinus Torvaldsendmenu
12901da177e4SLinus Torvalds
12911da177e4SLinus Torvaldsmenu "Boot options"
12921da177e4SLinus Torvalds
12931da177e4SLinus Torvalds# Compressed boot loader in ROM.  Yes, we really want to ask about
12941da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files.
12951da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT
12961da177e4SLinus Torvalds	hex "Compressed ROM boot loader base address"
12971da177e4SLinus Torvalds	default "0"
12981da177e4SLinus Torvalds	help
12991da177e4SLinus Torvalds	  The physical address at which the ROM-able zImage is to be
13001da177e4SLinus Torvalds	  placed in the target.  Platforms which normally make use of
13011da177e4SLinus Torvalds	  ROM-able zImage formats normally set this to a suitable
13021da177e4SLinus Torvalds	  value in their defconfig file.
13031da177e4SLinus Torvalds
13041da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
13051da177e4SLinus Torvalds
13061da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS
13071da177e4SLinus Torvalds	hex "Compressed ROM boot loader BSS address"
13081da177e4SLinus Torvalds	default "0"
13091da177e4SLinus Torvalds	help
1310f8c440b2SDan Fandrich	  The base address of an area of read/write memory in the target
1311f8c440b2SDan Fandrich	  for the ROM-able zImage which must be available while the
1312f8c440b2SDan Fandrich	  decompressor is running. It must be large enough to hold the
1313f8c440b2SDan Fandrich	  entire decompressed kernel plus an additional 128 KiB.
1314f8c440b2SDan Fandrich	  Platforms which normally make use of ROM-able zImage formats
1315f8c440b2SDan Fandrich	  normally set this to a suitable value in their defconfig file.
13161da177e4SLinus Torvalds
13171da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
13181da177e4SLinus Torvalds
13191da177e4SLinus Torvaldsconfig ZBOOT_ROM
13201da177e4SLinus Torvalds	bool "Compressed boot loader in ROM/flash"
13211da177e4SLinus Torvalds	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
13221da177e4SLinus Torvalds	help
13231da177e4SLinus Torvalds	  Say Y here if you intend to execute your compressed kernel image
13241da177e4SLinus Torvalds	  (zImage) directly from ROM or flash.  If unsure, say N.
13251da177e4SLinus Torvalds
13261da177e4SLinus Torvaldsconfig CMDLINE
13271da177e4SLinus Torvalds	string "Default kernel command string"
13281da177e4SLinus Torvalds	default ""
13291da177e4SLinus Torvalds	help
13301da177e4SLinus Torvalds	  On some architectures (EBSA110 and CATS), there is currently no way
13311da177e4SLinus Torvalds	  for the boot loader to pass arguments to the kernel. For these
13321da177e4SLinus Torvalds	  architectures, you should supply some command-line options at build
13331da177e4SLinus Torvalds	  time by entering them here. As a minimum, you should specify the
13341da177e4SLinus Torvalds	  memory size and the root device (e.g., mem=64M root=/dev/nfs).
13351da177e4SLinus Torvalds
13361da177e4SLinus Torvaldsconfig XIP_KERNEL
13371da177e4SLinus Torvalds	bool "Kernel Execute-In-Place from ROM"
13381da177e4SLinus Torvalds	depends on !ZBOOT_ROM
13391da177e4SLinus Torvalds	help
13401da177e4SLinus Torvalds	  Execute-In-Place allows the kernel to run from non-volatile storage
13411da177e4SLinus Torvalds	  directly addressable by the CPU, such as NOR flash. This saves RAM
13421da177e4SLinus Torvalds	  space since the text section of the kernel is not loaded from flash
13431da177e4SLinus Torvalds	  to RAM.  Read-write sections, such as the data section and stack,
13441da177e4SLinus Torvalds	  are still copied to RAM.  The XIP kernel is not compressed since
13451da177e4SLinus Torvalds	  it has to run directly from flash, so it will take more space to
13461da177e4SLinus Torvalds	  store it.  The flash address used to link the kernel object files,
13471da177e4SLinus Torvalds	  and for storing it, is configuration dependent. Therefore, if you
13481da177e4SLinus Torvalds	  say Y here, you must know the proper physical address where to
13491da177e4SLinus Torvalds	  store the kernel image depending on your own flash memory usage.
13501da177e4SLinus Torvalds
13511da177e4SLinus Torvalds	  Also note that the make target becomes "make xipImage" rather than
13521da177e4SLinus Torvalds	  "make zImage" or "make Image".  The final kernel binary to put in
13531da177e4SLinus Torvalds	  ROM memory will be arch/arm/boot/xipImage.
13541da177e4SLinus Torvalds
13551da177e4SLinus Torvalds	  If unsure, say N.
13561da177e4SLinus Torvalds
13571da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR
13581da177e4SLinus Torvalds	hex "XIP Kernel Physical Location"
13591da177e4SLinus Torvalds	depends on XIP_KERNEL
13601da177e4SLinus Torvalds	default "0x00080000"
13611da177e4SLinus Torvalds	help
13621da177e4SLinus Torvalds	  This is the physical address in your flash memory the kernel will
13631da177e4SLinus Torvalds	  be linked for and stored to.  This address is dependent on your
13641da177e4SLinus Torvalds	  own flash usage.
13651da177e4SLinus Torvalds
1366c587e4a6SRichard Purdieconfig KEXEC
1367c587e4a6SRichard Purdie	bool "Kexec system call (EXPERIMENTAL)"
1368c587e4a6SRichard Purdie	depends on EXPERIMENTAL
1369c587e4a6SRichard Purdie	help
1370c587e4a6SRichard Purdie	  kexec is a system call that implements the ability to shutdown your
1371c587e4a6SRichard Purdie	  current kernel, and to start another kernel.  It is like a reboot
137201dd2fbfSMatt LaPlante	  but it is independent of the system firmware.   And like a reboot
1373c587e4a6SRichard Purdie	  you can start any kernel with it, not just Linux.
1374c587e4a6SRichard Purdie
1375c587e4a6SRichard Purdie	  It is an ongoing process to be certain the hardware in a machine
1376c587e4a6SRichard Purdie	  is properly shutdown, so do not be surprised if this code does not
1377c587e4a6SRichard Purdie	  initially work for you.  It may help to enable device hotplugging
1378c587e4a6SRichard Purdie	  support.
1379c587e4a6SRichard Purdie
13804cd9d6f7SRichard Purdieconfig ATAGS_PROC
13814cd9d6f7SRichard Purdie	bool "Export atags in procfs"
1382b98d7291SUli Luckas	depends on KEXEC
1383b98d7291SUli Luckas	default y
13844cd9d6f7SRichard Purdie	help
13854cd9d6f7SRichard Purdie	  Should the atags used to boot the kernel be exported in an "atags"
13864cd9d6f7SRichard Purdie	  file in procfs. Useful with kexec.
13874cd9d6f7SRichard Purdie
13881da177e4SLinus Torvaldsendmenu
13891da177e4SLinus Torvalds
1390ac9d7efcSRussell Kingmenu "CPU Power Management"
13911da177e4SLinus Torvalds
139289c52ed4SBen Dooksif ARCH_HAS_CPUFREQ
13931da177e4SLinus Torvalds
13941da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig"
13951da177e4SLinus Torvalds
13961da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100
13971da177e4SLinus Torvalds	bool
13981da177e4SLinus Torvalds
13991da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110
14001da177e4SLinus Torvalds	bool
14011da177e4SLinus Torvalds
14021da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR
14031da177e4SLinus Torvalds	tristate "CPUfreq driver for ARM Integrator CPUs"
14041da177e4SLinus Torvalds	depends on ARCH_INTEGRATOR && CPU_FREQ
14051da177e4SLinus Torvalds	default y
14061da177e4SLinus Torvalds	help
14071da177e4SLinus Torvalds	  This enables the CPUfreq driver for ARM Integrator CPUs.
14081da177e4SLinus Torvalds
14091da177e4SLinus Torvalds	  For details, take a look at <file:Documentation/cpu-freq>.
14101da177e4SLinus Torvalds
14111da177e4SLinus Torvalds	  If in doubt, say Y.
14121da177e4SLinus Torvalds
14139e2697ffSRussell Kingconfig CPU_FREQ_PXA
14149e2697ffSRussell King	bool
14159e2697ffSRussell King	depends on CPU_FREQ && ARCH_PXA && PXA25x
14169e2697ffSRussell King	default y
14179e2697ffSRussell King	select CPU_FREQ_DEFAULT_GOV_USERSPACE
14189e2697ffSRussell King
1419b3748dddSMark Brownconfig CPU_FREQ_S3C64XX
1420b3748dddSMark Brown	bool "CPUfreq support for Samsung S3C64XX CPUs"
1421b3748dddSMark Brown	depends on CPU_FREQ && CPU_S3C6410
1422b3748dddSMark Brown
14239d56c02aSBen Dooksconfig CPU_FREQ_S3C
14249d56c02aSBen Dooks	bool
14259d56c02aSBen Dooks	help
14269d56c02aSBen Dooks	  Internal configuration node for common cpufreq on Samsung SoC
14279d56c02aSBen Dooks
14289d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX
14299d56c02aSBen Dooks	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
14309d56c02aSBen Dooks	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
14319d56c02aSBen Dooks	select CPU_FREQ_S3C
14329d56c02aSBen Dooks	help
14339d56c02aSBen Dooks	  This enables the CPUfreq driver for the Samsung S3C24XX family
14349d56c02aSBen Dooks	  of CPUs.
14359d56c02aSBen Dooks
14369d56c02aSBen Dooks	  For details, take a look at <file:Documentation/cpu-freq>.
14379d56c02aSBen Dooks
14389d56c02aSBen Dooks	  If in doubt, say N.
14399d56c02aSBen Dooks
14409d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL
14419d56c02aSBen Dooks	bool "Support CPUfreq changing of PLL frequency"
14429d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
14439d56c02aSBen Dooks	help
14449d56c02aSBen Dooks	  Compile in support for changing the PLL frequency from the
14459d56c02aSBen Dooks	  S3C24XX series CPUfreq driver. The PLL takes time to settle
14469d56c02aSBen Dooks	  after a frequency change, so by default it is not enabled.
14479d56c02aSBen Dooks
14489d56c02aSBen Dooks	  This also means that the PLL tables for the selected CPU(s) will
14499d56c02aSBen Dooks	  be built which may increase the size of the kernel image.
14509d56c02aSBen Dooks
14519d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG
14529d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver core"
14539d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
14549d56c02aSBen Dooks	help
14559d56c02aSBen Dooks	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
14569d56c02aSBen Dooks
14579d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG
14589d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver IO timing"
14599d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
14609d56c02aSBen Dooks	help
14619d56c02aSBen Dooks	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
14629d56c02aSBen Dooks
1463e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS
1464e6d197a6SBen Dooks	bool "Export debugfs for CPUFreq"
1465e6d197a6SBen Dooks	depends on CPU_FREQ_S3C24XX && DEBUG_FS
1466e6d197a6SBen Dooks	help
1467e6d197a6SBen Dooks	  Export status information via debugfs.
1468e6d197a6SBen Dooks
14691da177e4SLinus Torvaldsendif
14701da177e4SLinus Torvalds
1471ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig"
1472ac9d7efcSRussell King
1473ac9d7efcSRussell Kingendmenu
1474ac9d7efcSRussell King
14751da177e4SLinus Torvaldsmenu "Floating point emulation"
14761da177e4SLinus Torvalds
14771da177e4SLinus Torvaldscomment "At least one emulation must be selected"
14781da177e4SLinus Torvalds
14791da177e4SLinus Torvaldsconfig FPE_NWFPE
14801da177e4SLinus Torvalds	bool "NWFPE math emulation"
14818993a44cSNicolas Pitre	depends on !AEABI || OABI_COMPAT
14821da177e4SLinus Torvalds	---help---
14831da177e4SLinus Torvalds	  Say Y to include the NWFPE floating point emulator in the kernel.
14841da177e4SLinus Torvalds	  This is necessary to run most binaries. Linux does not currently
14851da177e4SLinus Torvalds	  support floating point hardware so you need to say Y here even if
14861da177e4SLinus Torvalds	  your machine has an FPA or floating point co-processor podule.
14871da177e4SLinus Torvalds
14881da177e4SLinus Torvalds	  You may say N here if you are going to load the Acorn FPEmulator
14891da177e4SLinus Torvalds	  early in the bootup.
14901da177e4SLinus Torvalds
14911da177e4SLinus Torvaldsconfig FPE_NWFPE_XP
14921da177e4SLinus Torvalds	bool "Support extended precision"
1493bedf142bSLennert Buytenhek	depends on FPE_NWFPE
14941da177e4SLinus Torvalds	help
14951da177e4SLinus Torvalds	  Say Y to include 80-bit support in the kernel floating-point
14961da177e4SLinus Torvalds	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
14971da177e4SLinus Torvalds	  Note that gcc does not generate 80-bit operations by default,
14981da177e4SLinus Torvalds	  so in most cases this option only enlarges the size of the
14991da177e4SLinus Torvalds	  floating point emulator without any good reason.
15001da177e4SLinus Torvalds
15011da177e4SLinus Torvalds	  You almost surely want to say N here.
15021da177e4SLinus Torvalds
15031da177e4SLinus Torvaldsconfig FPE_FASTFPE
15041da177e4SLinus Torvalds	bool "FastFPE math emulation (EXPERIMENTAL)"
15058993a44cSNicolas Pitre	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
15061da177e4SLinus Torvalds	---help---
15071da177e4SLinus Torvalds	  Say Y here to include the FAST floating point emulator in the kernel.
15081da177e4SLinus Torvalds	  This is an experimental much faster emulator which now also has full
15091da177e4SLinus Torvalds	  precision for the mantissa.  It does not support any exceptions.
15101da177e4SLinus Torvalds	  It is very simple, and approximately 3-6 times faster than NWFPE.
15111da177e4SLinus Torvalds
15121da177e4SLinus Torvalds	  It should be sufficient for most programs.  It may be not suitable
15131da177e4SLinus Torvalds	  for scientific calculations, but you have to check this for yourself.
15141da177e4SLinus Torvalds	  If you do not feel you need a faster FP emulation you should better
15151da177e4SLinus Torvalds	  choose NWFPE.
15161da177e4SLinus Torvalds
15171da177e4SLinus Torvaldsconfig VFP
15181da177e4SLinus Torvalds	bool "VFP-format floating point maths"
1519c00d4ffdSRussell King	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
15201da177e4SLinus Torvalds	help
15211da177e4SLinus Torvalds	  Say Y to include VFP support code in the kernel. This is needed
15221da177e4SLinus Torvalds	  if your hardware includes a VFP unit.
15231da177e4SLinus Torvalds
15241da177e4SLinus Torvalds	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
15251da177e4SLinus Torvalds	  release notes and additional status information.
15261da177e4SLinus Torvalds
15271da177e4SLinus Torvalds	  Say N if your target does not have VFP hardware.
15281da177e4SLinus Torvalds
152925ebee02SCatalin Marinasconfig VFPv3
153025ebee02SCatalin Marinas	bool
153125ebee02SCatalin Marinas	depends on VFP
153225ebee02SCatalin Marinas	default y if CPU_V7
153325ebee02SCatalin Marinas
1534b5872db4SCatalin Marinasconfig NEON
1535b5872db4SCatalin Marinas	bool "Advanced SIMD (NEON) Extension support"
1536b5872db4SCatalin Marinas	depends on VFPv3 && CPU_V7
1537b5872db4SCatalin Marinas	help
1538b5872db4SCatalin Marinas	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1539b5872db4SCatalin Marinas	  Extension.
1540b5872db4SCatalin Marinas
15411da177e4SLinus Torvaldsendmenu
15421da177e4SLinus Torvalds
15431da177e4SLinus Torvaldsmenu "Userspace binary formats"
15441da177e4SLinus Torvalds
15451da177e4SLinus Torvaldssource "fs/Kconfig.binfmt"
15461da177e4SLinus Torvalds
15471da177e4SLinus Torvaldsconfig ARTHUR
15481da177e4SLinus Torvalds	tristate "RISC OS personality"
1549704bdda0SNicolas Pitre	depends on !AEABI
15501da177e4SLinus Torvalds	help
15511da177e4SLinus Torvalds	  Say Y here to include the kernel code necessary if you want to run
15521da177e4SLinus Torvalds	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
15531da177e4SLinus Torvalds	  experimental; if this sounds frightening, say N and sleep in peace.
15541da177e4SLinus Torvalds	  You can also say M here to compile this support as a module (which
15551da177e4SLinus Torvalds	  will be called arthur).
15561da177e4SLinus Torvalds
15571da177e4SLinus Torvaldsendmenu
15581da177e4SLinus Torvalds
15591da177e4SLinus Torvaldsmenu "Power management options"
15601da177e4SLinus Torvalds
1561eceab4acSRussell Kingsource "kernel/power/Kconfig"
15621da177e4SLinus Torvalds
1563f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE
1564f4cb5700SJohannes Berg	def_bool y
1565f4cb5700SJohannes Berg
15661da177e4SLinus Torvaldsendmenu
15671da177e4SLinus Torvalds
1568d5950b43SSam Ravnborgsource "net/Kconfig"
1569d5950b43SSam Ravnborg
1570ac25150fSUwe Kleine-Königsource "drivers/Kconfig"
15711da177e4SLinus Torvalds
15721da177e4SLinus Torvaldssource "fs/Kconfig"
15731da177e4SLinus Torvalds
15741da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug"
15751da177e4SLinus Torvalds
15761da177e4SLinus Torvaldssource "security/Kconfig"
15771da177e4SLinus Torvalds
15781da177e4SLinus Torvaldssource "crypto/Kconfig"
15791da177e4SLinus Torvalds
15801da177e4SLinus Torvaldssource "lib/Kconfig"
1581