xref: /linux/arch/arm/Kconfig (revision 925c68cdca7412cb0ce9d63dab3cbfc9b47b3c8d)
11da177e4SLinus Torvalds#
21da177e4SLinus Torvalds# For a description of the syntax of this configuration file,
31da177e4SLinus Torvalds# see Documentation/kbuild/kconfig-language.txt.
41da177e4SLinus Torvalds#
51da177e4SLinus Torvalds
61da177e4SLinus Torvaldsmainmenu "Linux Kernel Configuration"
71da177e4SLinus Torvalds
81da177e4SLinus Torvaldsconfig ARM
91da177e4SLinus Torvalds	bool
101da177e4SLinus Torvalds	default y
11e17c6d56SDavid Woodhouse	select HAVE_AOUT
122064c946SAdrian Bunk	select HAVE_IDE
1312b824fbSAlessandro Zummo	select RTC_LIB
1475e7153aSRalf Baechle	select SYS_SUPPORTS_APM_EMULATION
1524b44a66SWill Deacon	select GENERIC_ATOMIC64 if (!CPU_32v6K)
1642d4b839SMathieu Desnoyers	select HAVE_OPROFILE
175cbad0ebSJason Wessel	select HAVE_ARCH_KGDB
183f550096SMathieu Desnoyers	select HAVE_KPROBES if (!XIP_KERNEL)
199edddaa2SAnanth N Mavinakayanahalli	select HAVE_KRETPROBES if (HAVE_KPROBES)
20606576ceSSteven Rostedt	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
211fe53268SDmitry Baryshkov	select HAVE_GENERIC_DMA_COHERENT
22e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_GZIP
23e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_LZO
247ada189fSJamie Iles	select HAVE_PERF_EVENTS
257ada189fSJamie Iles	select PERF_USE_VMALLOC
261da177e4SLinus Torvalds	help
271da177e4SLinus Torvalds	  The ARM series is a line of low-power-consumption RISC chip designs
28f6c8965aSMartin Michlmayr	  licensed by ARM Ltd and targeted at embedded applications and
291da177e4SLinus Torvalds	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
301da177e4SLinus Torvalds	  manufactured, but legacy ARM-based PC hardware remains popular in
311da177e4SLinus Torvalds	  Europe.  There is an ARM Linux project with a web page at
321da177e4SLinus Torvalds	  <http://www.arm.linux.org.uk/>.
331da177e4SLinus Torvalds
341a189b97SRussell Kingconfig HAVE_PWM
351a189b97SRussell King	bool
361a189b97SRussell King
3775e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION
3875e7153aSRalf Baechle	bool
3975e7153aSRalf Baechle
400a938b97SDavid Brownellconfig GENERIC_GPIO
410a938b97SDavid Brownell	bool
420a938b97SDavid Brownell
43746140c7SKevin Hilmanconfig GENERIC_TIME
44746140c7SKevin Hilman	bool
45746140c7SKevin Hilman
460567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS
470567a0c0SKevin Hilman	bool
480567a0c0SKevin Hilman
49a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST
50a8655e83SCatalin Marinas	bool
51a8655e83SCatalin Marinas	depends on GENERIC_CLOCKEVENTS
52a8655e83SCatalin Marinas	default y if SMP && !LOCAL_TIMERS
53a8655e83SCatalin Marinas
54bc581770SLinus Walleijconfig HAVE_TCM
55bc581770SLinus Walleij	bool
56bc581770SLinus Walleij	select GENERIC_ALLOCATOR
57bc581770SLinus Walleij
58e119bfffSRussell Kingconfig HAVE_PROC_CPU
59e119bfffSRussell King	bool
60e119bfffSRussell King
615ea81769SAl Viroconfig NO_IOPORT
625ea81769SAl Viro	bool
635ea81769SAl Viro
641da177e4SLinus Torvaldsconfig EISA
651da177e4SLinus Torvalds	bool
661da177e4SLinus Torvalds	---help---
671da177e4SLinus Torvalds	  The Extended Industry Standard Architecture (EISA) bus was
681da177e4SLinus Torvalds	  developed as an open alternative to the IBM MicroChannel bus.
691da177e4SLinus Torvalds
701da177e4SLinus Torvalds	  The EISA bus provided some of the features of the IBM MicroChannel
711da177e4SLinus Torvalds	  bus while maintaining backward compatibility with cards made for
721da177e4SLinus Torvalds	  the older ISA bus.  The EISA bus saw limited use between 1988 and
731da177e4SLinus Torvalds	  1995 when it was made obsolete by the PCI bus.
741da177e4SLinus Torvalds
751da177e4SLinus Torvalds	  Say Y here if you are building a kernel for an EISA-based machine.
761da177e4SLinus Torvalds
771da177e4SLinus Torvalds	  Otherwise, say N.
781da177e4SLinus Torvalds
791da177e4SLinus Torvaldsconfig SBUS
801da177e4SLinus Torvalds	bool
811da177e4SLinus Torvalds
821da177e4SLinus Torvaldsconfig MCA
831da177e4SLinus Torvalds	bool
841da177e4SLinus Torvalds	help
851da177e4SLinus Torvalds	  MicroChannel Architecture is found in some IBM PS/2 machines and
861da177e4SLinus Torvalds	  laptops.  It is a bus system similar to PCI or ISA. See
871da177e4SLinus Torvalds	  <file:Documentation/mca.txt> (and especially the web page given
881da177e4SLinus Torvalds	  there) before attempting to build an MCA bus kernel.
891da177e4SLinus Torvalds
904a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS
914a2581a0SThomas Gleixner	bool
924a2581a0SThomas Gleixner	default y
934a2581a0SThomas Gleixner
94f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT
95f16fb1ecSRussell King	bool
96f16fb1ecSRussell King	default y
97f16fb1ecSRussell King
98f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT
99f76e9154SNicolas Pitre	bool
100f76e9154SNicolas Pitre	depends on !SMP
101f76e9154SNicolas Pitre	default y
102f76e9154SNicolas Pitre
103f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT
104f16fb1ecSRussell King	bool
105f16fb1ecSRussell King	default y
106f16fb1ecSRussell King
1077ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT
1087ad1bcb2SRussell King	bool
1097ad1bcb2SRussell King	default y
1107ad1bcb2SRussell King
1114a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND
1124a2581a0SThomas Gleixner	bool
1134a2581a0SThomas Gleixner	default y
1144a2581a0SThomas Gleixner
1154a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE
1164a2581a0SThomas Gleixner	bool
1174a2581a0SThomas Gleixner	default y
1184a2581a0SThomas Gleixner
11995c354feSNick Pigginconfig GENERIC_LOCKBREAK
12095c354feSNick Piggin	bool
12195c354feSNick Piggin	default y
12295c354feSNick Piggin	depends on SMP && PREEMPT
12395c354feSNick Piggin
1241da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK
1251da177e4SLinus Torvalds	bool
1261da177e4SLinus Torvalds	default y
1271da177e4SLinus Torvalds
1281da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM
1291da177e4SLinus Torvalds	bool
1301da177e4SLinus Torvalds
131f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32
132f0d1b0b3SDavid Howells	bool
133f0d1b0b3SDavid Howells
134f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64
135f0d1b0b3SDavid Howells	bool
136f0d1b0b3SDavid Howells
13789c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ
13889c52ed4SBen Dooks	bool
13989c52ed4SBen Dooks	help
14089c52ed4SBen Dooks	  Internal node to signify that the ARCH has CPUFREQ support
14189c52ed4SBen Dooks	  and that the relevant menu configurations are displayed for
14289c52ed4SBen Dooks	  it.
14389c52ed4SBen Dooks
144b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT
145b89c3b16SAkinobu Mita	bool
146b89c3b16SAkinobu Mita	default y
147b89c3b16SAkinobu Mita
1481da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY
1491da177e4SLinus Torvalds	bool
1501da177e4SLinus Torvalds	default y
1511da177e4SLinus Torvalds
152a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC
153a08b6b79Sviro@ZenIV.linux.org.uk	bool
154a08b6b79Sviro@ZenIV.linux.org.uk
1555ac6da66SChristoph Lameterconfig ZONE_DMA
1565ac6da66SChristoph Lameter	bool
1575ac6da66SChristoph Lameter
158ccd7ab7fSFUJITA Tomonoriconfig NEED_DMA_MAP_STATE
159ccd7ab7fSFUJITA Tomonori       def_bool y
160ccd7ab7fSFUJITA Tomonori
1611da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA
1621da177e4SLinus Torvalds	bool
1631da177e4SLinus Torvalds
1641da177e4SLinus Torvaldsconfig FIQ
1651da177e4SLinus Torvalds	bool
1661da177e4SLinus Torvalds
167034d2f5aSAl Viroconfig ARCH_MTD_XIP
168034d2f5aSAl Viro	bool
169034d2f5aSAl Viro
17060a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ
17160a752efSPaulius Zaleckas	def_bool y
17260a752efSPaulius Zaleckas
173d6d502faSKukjin Kimconfig ARM_L1_CACHE_SHIFT_6
174d6d502faSKukjin Kim	bool
175d6d502faSKukjin Kim	help
176d6d502faSKukjin Kim	  Setting ARM L1 cache line size to 64 Bytes.
177d6d502faSKukjin Kim
178c0ffa3a9SMathieu Desnoyersif OPROFILE
179c0ffa3a9SMathieu Desnoyers
180c0ffa3a9SMathieu Desnoyersconfig OPROFILE_ARMV6
181c0ffa3a9SMathieu Desnoyers	def_bool y
182c0ffa3a9SMathieu Desnoyers	depends on CPU_V6 && !SMP
183c0ffa3a9SMathieu Desnoyers	select OPROFILE_ARM11_CORE
184c0ffa3a9SMathieu Desnoyers
185c0ffa3a9SMathieu Desnoyersconfig OPROFILE_MPCORE
186c0ffa3a9SMathieu Desnoyers	def_bool y
187c0ffa3a9SMathieu Desnoyers	depends on CPU_V6 && SMP
188c0ffa3a9SMathieu Desnoyers	select OPROFILE_ARM11_CORE
189c0ffa3a9SMathieu Desnoyers
190c0ffa3a9SMathieu Desnoyersconfig OPROFILE_ARM11_CORE
191c0ffa3a9SMathieu Desnoyers	bool
192c0ffa3a9SMathieu Desnoyers
193d7ac4e28SJean PIHETconfig OPROFILE_ARMV7
194d7ac4e28SJean PIHET	def_bool y
195d7ac4e28SJean PIHET	depends on CPU_V7 && !SMP
196d7ac4e28SJean PIHET	bool
197d7ac4e28SJean PIHET
198c0ffa3a9SMathieu Desnoyersendif
199c0ffa3a9SMathieu Desnoyers
200c760fc19SHyok S. Choiconfig VECTORS_BASE
201c760fc19SHyok S. Choi	hex
2026afd6faeSHyok S. Choi	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
203c760fc19SHyok S. Choi	default DRAM_BASE if REMAP_VECTORS_TO_RAM
204c760fc19SHyok S. Choi	default 0x00000000
205c760fc19SHyok S. Choi	help
206c760fc19SHyok S. Choi	  The base address of exception vectors.
207c760fc19SHyok S. Choi
2081da177e4SLinus Torvaldssource "init/Kconfig"
2091da177e4SLinus Torvalds
210dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer"
211dc52ddc0SMatt Helsley
2121da177e4SLinus Torvaldsmenu "System Type"
2131da177e4SLinus Torvalds
2143c427975SHyok S. Choiconfig MMU
2153c427975SHyok S. Choi	bool "MMU-based Paged Memory Management Support"
2163c427975SHyok S. Choi	default y
2173c427975SHyok S. Choi	help
2183c427975SHyok S. Choi	  Select if you want MMU-based virtualised addressing space
2193c427975SHyok S. Choi	  support by paged memory management. If unsure, say 'Y'.
2203c427975SHyok S. Choi
221ccf50e23SRussell King#
222ccf50e23SRussell King# The "ARM system type" choice list is ordered alphabetically by option
223ccf50e23SRussell King# text.  Please add new entries in the option alphabetic order.
224ccf50e23SRussell King#
2251da177e4SLinus Torvaldschoice
2261da177e4SLinus Torvalds	prompt "ARM system type"
2276a0e2430SCatalin Marinas	default ARCH_VERSATILE
2281da177e4SLinus Torvalds
2294af6fee1SDeepak Saxenaconfig ARCH_AAEC2000
2304af6fee1SDeepak Saxena	bool "Agilent AAEC-2000 based"
231c750815eSRussell King	select CPU_ARM920T
2324af6fee1SDeepak Saxena	select ARM_AMBA
2339483a578SDavid Brownell	select HAVE_CLK
2344af6fee1SDeepak Saxena	help
2354af6fee1SDeepak Saxena	  This enables support for systems based on the Agilent AAEC-2000
2364af6fee1SDeepak Saxena
2374af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR
2384af6fee1SDeepak Saxena	bool "ARM Ltd. Integrator family"
2394af6fee1SDeepak Saxena	select ARM_AMBA
24089c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
2419483a578SDavid Brownell	select HAVE_CLK
242d72fbdf0SRussell King	select COMMON_CLKDEV
2434af6fee1SDeepak Saxena	select ICST525
2444af6fee1SDeepak Saxena	help
2454af6fee1SDeepak Saxena	  Support for ARM's Integrator platform.
2464af6fee1SDeepak Saxena
2474af6fee1SDeepak Saxenaconfig ARCH_REALVIEW
2484af6fee1SDeepak Saxena	bool "ARM Ltd. RealView family"
2494af6fee1SDeepak Saxena	select ARM_AMBA
2509483a578SDavid Brownell	select HAVE_CLK
251cf30fb4aSRussell King	select COMMON_CLKDEV
2524af6fee1SDeepak Saxena	select ICST307
25385802afeSCatalin Marinas	select GENERIC_TIME
254ae30ceacSCatalin Marinas	select GENERIC_CLOCKEVENTS
255eb7fffa3SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
256b56ba8aaSColin Tuckley	select GPIO_PL061 if GPIOLIB
2574af6fee1SDeepak Saxena	help
2584af6fee1SDeepak Saxena	  This enables support for ARM Ltd RealView boards.
2594af6fee1SDeepak Saxena
2604af6fee1SDeepak Saxenaconfig ARCH_VERSATILE
2614af6fee1SDeepak Saxena	bool "ARM Ltd. Versatile family"
2624af6fee1SDeepak Saxena	select ARM_AMBA
2634af6fee1SDeepak Saxena	select ARM_VIC
2649483a578SDavid Brownell	select HAVE_CLK
26571a06da0SRussell King	select COMMON_CLKDEV
2664af6fee1SDeepak Saxena	select ICST307
267b49c87c2SKevin Hilman	select GENERIC_TIME
26889df1272SKevin Hilman	select GENERIC_CLOCKEVENTS
269bbeddc43SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
2704af6fee1SDeepak Saxena	help
2714af6fee1SDeepak Saxena	  This enables support for ARM Ltd Versatile board.
2724af6fee1SDeepak Saxena
2738fc5ffa0SAndrew Victorconfig ARCH_AT91
2748fc5ffa0SAndrew Victor	bool "Atmel AT91"
2750a938b97SDavid Brownell	select GENERIC_GPIO
276f373e8c0SRyan Mallon	select ARCH_REQUIRE_GPIOLIB
27793686ae8SDavid Brownell	select HAVE_CLK
2784af6fee1SDeepak Saxena	help
2792b3b3516SAndrew Victor	  This enables support for systems based on the Atmel AT91RM9200,
2802b3b3516SAndrew Victor	  AT91SAM9 and AT91CAP9 processors.
2814af6fee1SDeepak Saxena
282ccf50e23SRussell Kingconfig ARCH_BCMRING
283ccf50e23SRussell King	bool "Broadcom BCMRING"
284ccf50e23SRussell King	depends on MMU
285ccf50e23SRussell King	select CPU_V6
286ccf50e23SRussell King	select ARM_AMBA
287ccf50e23SRussell King	select COMMON_CLKDEV
288ccf50e23SRussell King	select GENERIC_TIME
289ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
290ccf50e23SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
291ccf50e23SRussell King	help
292ccf50e23SRussell King	  Support for Broadcom's BCMRing platform.
293ccf50e23SRussell King
2941da177e4SLinus Torvaldsconfig ARCH_CLPS711X
2954af6fee1SDeepak Saxena	bool "Cirrus Logic CLPS711x/EP721x-based"
296c750815eSRussell King	select CPU_ARM720T
297f999b8bdSMartin Michlmayr	help
298f999b8bdSMartin Michlmayr	  Support for Cirrus Logic 711x/721x based boards.
2991da177e4SLinus Torvalds
300788c9700SRussell Kingconfig ARCH_GEMINI
301788c9700SRussell King	bool "Cortina Systems Gemini"
302788c9700SRussell King	select CPU_FA526
303788c9700SRussell King	select GENERIC_GPIO
304788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
305788c9700SRussell King	help
306788c9700SRussell King	  Support for the Cortina Systems Gemini family SoCs
307788c9700SRussell King
3081da177e4SLinus Torvaldsconfig ARCH_EBSA110
3091da177e4SLinus Torvalds	bool "EBSA-110"
310c750815eSRussell King	select CPU_SA110
311f7e68bbfSRussell King	select ISA
312c5eb2a2bSRussell King	select NO_IOPORT
3131da177e4SLinus Torvalds	help
3141da177e4SLinus Torvalds	  This is an evaluation board for the StrongARM processor available
315f6c8965aSMartin Michlmayr	  from Digital. It has limited hardware on-board, including an
3161da177e4SLinus Torvalds	  Ethernet interface, two PCMCIA sockets, two serial ports and a
3171da177e4SLinus Torvalds	  parallel port.
3181da177e4SLinus Torvalds
319e7736d47SLennert Buytenhekconfig ARCH_EP93XX
320e7736d47SLennert Buytenhek	bool "EP93xx-based"
321c750815eSRussell King	select CPU_ARM920T
322e7736d47SLennert Buytenhek	select ARM_AMBA
323e7736d47SLennert Buytenhek	select ARM_VIC
3244e9f9fd5SHerbert Valerio Riedel	select GENERIC_GPIO
3259483a578SDavid Brownell	select HAVE_CLK
326ae696fd5SRussell King	select COMMON_CLKDEV
3277444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
328eb33575cSMel Gorman	select ARCH_HAS_HOLES_MEMORYMODEL
329e7736d47SLennert Buytenhek	help
330e7736d47SLennert Buytenhek	  This enables support for the Cirrus EP93xx series of CPUs.
331e7736d47SLennert Buytenhek
3321da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE
3331da177e4SLinus Torvalds	bool "FootBridge"
334c750815eSRussell King	select CPU_SA110
3351da177e4SLinus Torvalds	select FOOTBRIDGE
336f999b8bdSMartin Michlmayr	help
337f999b8bdSMartin Michlmayr	  Support for systems based on the DC21285 companion chip
338f999b8bdSMartin Michlmayr	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
3391da177e4SLinus Torvalds
340788c9700SRussell Kingconfig ARCH_MXC
341788c9700SRussell King	bool "Freescale MXC/iMX-based"
342788c9700SRussell King	select GENERIC_TIME
343788c9700SRussell King	select GENERIC_CLOCKEVENTS
344788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
345a2ab67faSRussell King	select HAVE_CLK
34603e09cd8SUwe Kleine-König	select COMMON_CLKDEV
347788c9700SRussell King	help
348788c9700SRussell King	  Support for Freescale MXC/iMX-based family of processors
349788c9700SRussell King
3507bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX
3517bd0f2f5Sdmitry pervushin	bool "Freescale STMP3xxx"
3527bd0f2f5Sdmitry pervushin	select CPU_ARM926T
3537bd0f2f5Sdmitry pervushin	select HAVE_CLK
3547bd0f2f5Sdmitry pervushin	select COMMON_CLKDEV
3557bd0f2f5Sdmitry pervushin	select ARCH_REQUIRE_GPIOLIB
3567bd0f2f5Sdmitry pervushin	select GENERIC_TIME
3577bd0f2f5Sdmitry pervushin	select GENERIC_CLOCKEVENTS
3587bd0f2f5Sdmitry pervushin	select GENERIC_GPIO
3597bd0f2f5Sdmitry pervushin	select USB_ARCH_HAS_EHCI
3607bd0f2f5Sdmitry pervushin	help
3617bd0f2f5Sdmitry pervushin	  Support for systems based on the Freescale 3xxx CPUs.
3627bd0f2f5Sdmitry pervushin
3634af6fee1SDeepak Saxenaconfig ARCH_NETX
3644af6fee1SDeepak Saxena	bool "Hilscher NetX based"
365c750815eSRussell King	select CPU_ARM926T
3664af6fee1SDeepak Saxena	select ARM_VIC
3672fcfe6b8SUwe Kleine-König	select GENERIC_CLOCKEVENTS
36821edecd3SUwe Kleine-König	select GENERIC_TIME
369f999b8bdSMartin Michlmayr	help
3704af6fee1SDeepak Saxena	  This enables support for systems based on the Hilscher NetX Soc
3714af6fee1SDeepak Saxena
3724af6fee1SDeepak Saxenaconfig ARCH_H720X
3734af6fee1SDeepak Saxena	bool "Hynix HMS720x-based"
374c750815eSRussell King	select CPU_ARM720T
3754af6fee1SDeepak Saxena	select ISA_DMA_API
3764af6fee1SDeepak Saxena	help
3774af6fee1SDeepak Saxena	  This enables support for systems based on the Hynix HMS720x
3784af6fee1SDeepak Saxena
3793b938be6SRussell Kingconfig ARCH_IOP13XX
3803b938be6SRussell King	bool "IOP13xx-based"
3813b938be6SRussell King	depends on MMU
382c750815eSRussell King	select CPU_XSC3
3833b938be6SRussell King	select PLAT_IOP
3843b938be6SRussell King	select PCI
3853b938be6SRussell King	select ARCH_SUPPORTS_MSI
3868d5796d2SLennert Buytenhek	select VMSPLIT_1G
3873b938be6SRussell King	help
3883b938be6SRussell King	  Support for Intel's IOP13XX (XScale) family of processors.
3893b938be6SRussell King
3903f7e5815SLennert Buytenhekconfig ARCH_IOP32X
3913f7e5815SLennert Buytenhek	bool "IOP32x-based"
392a4f7e763SRussell King	depends on MMU
393c750815eSRussell King	select CPU_XSCALE
3947ae1f7ecSLennert Buytenhek	select PLAT_IOP
395f7e68bbfSRussell King	select PCI
39663f385cdSArnaud Patard	select GENERIC_GPIO
397bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
398f999b8bdSMartin Michlmayr	help
3993f7e5815SLennert Buytenhek	  Support for Intel's 80219 and IOP32X (XScale) family of
4003f7e5815SLennert Buytenhek	  processors.
4013f7e5815SLennert Buytenhek
4023f7e5815SLennert Buytenhekconfig ARCH_IOP33X
4033f7e5815SLennert Buytenhek	bool "IOP33x-based"
4043f7e5815SLennert Buytenhek	depends on MMU
405c750815eSRussell King	select CPU_XSCALE
4067ae1f7ecSLennert Buytenhek	select PLAT_IOP
4073f7e5815SLennert Buytenhek	select PCI
40863f385cdSArnaud Patard	select GENERIC_GPIO
409bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
4103f7e5815SLennert Buytenhek	help
4113f7e5815SLennert Buytenhek	  Support for Intel's IOP33X (XScale) family of processors.
4121da177e4SLinus Torvalds
4133b938be6SRussell Kingconfig ARCH_IXP23XX
4143b938be6SRussell King 	bool "IXP23XX-based"
415588ef769SDan Williams	depends on MMU
416c750815eSRussell King	select CPU_XSC3
417285f5fa7SDan Williams 	select PCI
418285f5fa7SDan Williams	help
4193b938be6SRussell King	  Support for Intel's IXP23xx (XScale) family of processors.
4201da177e4SLinus Torvalds
4211da177e4SLinus Torvaldsconfig ARCH_IXP2000
4221da177e4SLinus Torvalds	bool "IXP2400/2800-based"
423a4f7e763SRussell King	depends on MMU
424c750815eSRussell King	select CPU_XSCALE
425f7e68bbfSRussell King	select PCI
426f999b8bdSMartin Michlmayr	help
427f999b8bdSMartin Michlmayr	  Support for Intel's IXP2400/2800 (XScale) family of processors.
4281da177e4SLinus Torvalds
4293b938be6SRussell Kingconfig ARCH_IXP4XX
4303b938be6SRussell King	bool "IXP4xx-based"
431a4f7e763SRussell King	depends on MMU
432c750815eSRussell King	select CPU_XSCALE
4338858e9afSMilan Svoboda	select GENERIC_GPIO
4343b938be6SRussell King	select GENERIC_TIME
4353b938be6SRussell King	select GENERIC_CLOCKEVENTS
436485bdde7SRussell King	select DMABOUNCE if PCI
437c4713074SLennert Buytenhek	help
4383b938be6SRussell King	  Support for Intel's IXP4XX (XScale) family of processors.
439c4713074SLennert Buytenhek
4401da177e4SLinus Torvaldsconfig ARCH_L7200
4411da177e4SLinus Torvalds	bool "LinkUp-L7200"
442c750815eSRussell King	select CPU_ARM720T
4431da177e4SLinus Torvalds	select FIQ
4441da177e4SLinus Torvalds	help
4451da177e4SLinus Torvalds	  Say Y here if you intend to run this kernel on a LinkUp Systems
4461da177e4SLinus Torvalds	  L7200 Software Development Board which uses an ARM720T processor.
4471da177e4SLinus Torvalds	  Information on this board can be obtained at:
4481da177e4SLinus Torvalds
4491da177e4SLinus Torvalds	  <http://www.linkupsys.com/>
4501da177e4SLinus Torvalds
4511da177e4SLinus Torvalds	  If you have any questions or comments about the Linux kernel port
4521da177e4SLinus Torvalds	  to this board, send e-mail to <sjhill@cotw.com>.
4531da177e4SLinus Torvalds
454edabd38eSSaeed Bisharaconfig ARCH_DOVE
455edabd38eSSaeed Bishara	bool "Marvell Dove"
456edabd38eSSaeed Bishara	select PCI
457edabd38eSSaeed Bishara	select GENERIC_GPIO
458edabd38eSSaeed Bishara	select ARCH_REQUIRE_GPIOLIB
459edabd38eSSaeed Bishara	select GENERIC_TIME
460edabd38eSSaeed Bishara	select GENERIC_CLOCKEVENTS
461edabd38eSSaeed Bishara	select PLAT_ORION
462edabd38eSSaeed Bishara	help
463edabd38eSSaeed Bishara	  Support for the Marvell Dove SoC 88AP510
464edabd38eSSaeed Bishara
465651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD
466651c74c7SSaeed Bishara	bool "Marvell Kirkwood"
467c750815eSRussell King	select CPU_FEROCEON
468651c74c7SSaeed Bishara	select PCI
4694c213430SLennert Buytenhek	select GENERIC_GPIO
470a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
471651c74c7SSaeed Bishara	select GENERIC_TIME
472651c74c7SSaeed Bishara	select GENERIC_CLOCKEVENTS
473651c74c7SSaeed Bishara	select PLAT_ORION
474651c74c7SSaeed Bishara	help
475651c74c7SSaeed Bishara	  Support for the following Marvell Kirkwood series SoCs:
476651c74c7SSaeed Bishara	  88F6180, 88F6192 and 88F6281.
477651c74c7SSaeed Bishara
478788c9700SRussell Kingconfig ARCH_LOKI
479788c9700SRussell King	bool "Marvell Loki (88RC8480)"
480788c9700SRussell King	select CPU_FEROCEON
481788c9700SRussell King	select GENERIC_TIME
482788c9700SRussell King	select GENERIC_CLOCKEVENTS
483788c9700SRussell King	select PLAT_ORION
484788c9700SRussell King	help
485788c9700SRussell King	  Support for the Marvell Loki (88RC8480) SoC.
486788c9700SRussell King
487788c9700SRussell Kingconfig ARCH_MV78XX0
488788c9700SRussell King	bool "Marvell MV78xx0"
489788c9700SRussell King	select CPU_FEROCEON
490788c9700SRussell King	select PCI
491788c9700SRussell King	select GENERIC_GPIO
492a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
493788c9700SRussell King	select GENERIC_TIME
494788c9700SRussell King	select GENERIC_CLOCKEVENTS
495788c9700SRussell King	select PLAT_ORION
496788c9700SRussell King	help
497788c9700SRussell King	  Support for the following Marvell MV78xx0 series SoCs:
498788c9700SRussell King	  MV781x0, MV782x0.
499788c9700SRussell King
500788c9700SRussell Kingconfig ARCH_ORION5X
501788c9700SRussell King	bool "Marvell Orion"
502788c9700SRussell King	depends on MMU
503788c9700SRussell King	select CPU_FEROCEON
504788c9700SRussell King	select PCI
505788c9700SRussell King	select GENERIC_GPIO
506a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
507788c9700SRussell King	select GENERIC_TIME
508788c9700SRussell King	select GENERIC_CLOCKEVENTS
509788c9700SRussell King	select PLAT_ORION
510788c9700SRussell King	help
511788c9700SRussell King	  Support for the following Marvell Orion 5x series SoCs:
512788c9700SRussell King	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
513788c9700SRussell King	  Orion-2 (5281), Orion-1-90 (6183).
514788c9700SRussell King
515788c9700SRussell Kingconfig ARCH_MMP
5162f7e8faeSHaojian Zhuang	bool "Marvell PXA168/910/MMP2"
517788c9700SRussell King	depends on MMU
518788c9700SRussell King	select GENERIC_GPIO
519788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
520788c9700SRussell King	select HAVE_CLK
521788c9700SRussell King	select COMMON_CLKDEV
522788c9700SRussell King	select GENERIC_TIME
523788c9700SRussell King	select GENERIC_CLOCKEVENTS
524788c9700SRussell King	select TICK_ONESHOT
525788c9700SRussell King	select PLAT_PXA
526788c9700SRussell King	help
5272f7e8faeSHaojian Zhuang	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
528788c9700SRussell King
529c53c9cf6SAndrew Victorconfig ARCH_KS8695
530c53c9cf6SAndrew Victor	bool "Micrel/Kendin KS8695"
531c750815eSRussell King	select CPU_ARM922T
5328a87a996SAndrew Victor	select GENERIC_GPIO
53372880ad8SDaniel Silverstone        select ARCH_REQUIRE_GPIOLIB
534c53c9cf6SAndrew Victor	help
535c53c9cf6SAndrew Victor	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
536c53c9cf6SAndrew Victor	  System-on-Chip devices.
537c53c9cf6SAndrew Victor
5389918cda5SUwe Kleine-Königconfig ARCH_NS9XXX
5399918cda5SUwe Kleine-König	bool "NetSilicon NS9xxx"
540c750815eSRussell King	select CPU_ARM926T
541689f2a01SUwe Kleine-König	select GENERIC_GPIO
542cef5975dSUwe Kleine-König	select GENERIC_TIME
543c0bb87f7SUwe Kleine-König	select GENERIC_CLOCKEVENTS
5449483a578SDavid Brownell	select HAVE_CLK
5459918cda5SUwe Kleine-König	help
5469918cda5SUwe Kleine-König	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
5479918cda5SUwe Kleine-König	  System.
5489918cda5SUwe Kleine-König
5499918cda5SUwe Kleine-König	  <http://www.digi.com/products/microprocessors/index.jsp>
5509918cda5SUwe Kleine-König
551788c9700SRussell Kingconfig ARCH_W90X900
552788c9700SRussell King	bool "Nuvoton W90X900 CPU"
553788c9700SRussell King	select CPU_ARM926T
554c52d3d68Swanzongshun	select ARCH_REQUIRE_GPIOLIB
555c52d3d68Swanzongshun	select GENERIC_GPIO
556d2c24195Swanzongshun	select HAVE_CLK
5570e4a34bbSwanzongshun	select COMMON_CLKDEV
55858b5369eSwanzongshun	select GENERIC_TIME
55958b5369eSwanzongshun	select GENERIC_CLOCKEVENTS
560777f9bebSLennert Buytenhek	help
561a8bc4eadSwanzongshun	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
562a8bc4eadSwanzongshun	  At present, the w90x900 has been renamed nuc900, regarding
563a8bc4eadSwanzongshun	  the ARM series product line, you can login the following
564a8bc4eadSwanzongshun	  link address to know more.
565a8bc4eadSwanzongshun
566a8bc4eadSwanzongshun	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
567a8bc4eadSwanzongshun		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
568585cf175STzachi Perelstein
569a62e9030Swanzongshunconfig ARCH_NUC93X
570a62e9030Swanzongshun	bool "Nuvoton NUC93X CPU"
571a62e9030Swanzongshun	select CPU_ARM926T
572a62e9030Swanzongshun	select HAVE_CLK
573a62e9030Swanzongshun	select COMMON_CLKDEV
574a62e9030Swanzongshun	help
575a62e9030Swanzongshun	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
576a62e9030Swanzongshun	  low-power and high performance MPEG-4/JPEG multimedia controller chip.
577a62e9030Swanzongshun
5784af6fee1SDeepak Saxenaconfig ARCH_PNX4008
5794af6fee1SDeepak Saxena	bool "Philips Nexperia PNX4008 Mobile"
580c750815eSRussell King	select CPU_ARM926T
5819483a578SDavid Brownell	select HAVE_CLK
5826985a5adSRussell King	select COMMON_CLKDEV
5834af6fee1SDeepak Saxena	help
5844af6fee1SDeepak Saxena	  This enables support for Philips PNX4008 mobile platform.
5854af6fee1SDeepak Saxena
5861da177e4SLinus Torvaldsconfig ARCH_PXA
5872c8086a5Seric miao	bool "PXA2xx/PXA3xx-based"
588a4f7e763SRussell King	depends on MMU
589034d2f5aSAl Viro	select ARCH_MTD_XIP
59089c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
5910a938b97SDavid Brownell	select GENERIC_GPIO
5929483a578SDavid Brownell	select HAVE_CLK
5938c3abc7dSRussell King	select COMMON_CLKDEV
5947444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
59545cf5eefSNicolas Pitre	select GENERIC_TIME
596981d0f39SEric Miao	select GENERIC_CLOCKEVENTS
597a88264c2SRussell King	select TICK_ONESHOT
598bd5ce433SEric Miao	select PLAT_PXA
599f999b8bdSMartin Michlmayr	help
6002c8086a5Seric miao	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
6011da177e4SLinus Torvalds
602788c9700SRussell Kingconfig ARCH_MSM
603788c9700SRussell King	bool "Qualcomm MSM"
604788c9700SRussell King	select CPU_V6
60549cbe786SEric Miao	select GENERIC_TIME
60649cbe786SEric Miao	select GENERIC_CLOCKEVENTS
60749cbe786SEric Miao	help
608788c9700SRussell King	  Support for Qualcomm MSM7K based systems.  This runs on the ARM11
609788c9700SRussell King	  apps processor of the MSM7K and depends on a shared memory
610788c9700SRussell King	  interface to the ARM9 modem processor which runs the baseband stack
611788c9700SRussell King	  and controls some vital subsystems (clock and power control, etc).
61249cbe786SEric Miao
613c793c1b0SMagnus Dammconfig ARCH_SHMOBILE
614c793c1b0SMagnus Damm	bool "Renesas SH-Mobile"
615c793c1b0SMagnus Damm	help
616c793c1b0SMagnus Damm	  Support for Renesas's SH-Mobile ARM platforms
617c793c1b0SMagnus Damm
6181da177e4SLinus Torvaldsconfig ARCH_RPC
6191da177e4SLinus Torvalds	bool "RiscPC"
6201da177e4SLinus Torvalds	select ARCH_ACORN
6211da177e4SLinus Torvalds	select FIQ
6221da177e4SLinus Torvalds	select TIMER_ACORN
623a08b6b79Sviro@ZenIV.linux.org.uk	select ARCH_MAY_HAVE_PC_FDC
624341eb781SBen Dooks	select HAVE_PATA_PLATFORM
625065909b9SRussell King	select ISA_DMA_API
6265ea81769SAl Viro	select NO_IOPORT
62707f841b7SRussell King	select ARCH_SPARSEMEM_ENABLE
6281da177e4SLinus Torvalds	help
6291da177e4SLinus Torvalds	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
6301da177e4SLinus Torvalds	  CD-ROM interface, serial and parallel port, and the floppy drive.
6311da177e4SLinus Torvalds
6321da177e4SLinus Torvaldsconfig ARCH_SA1100
6331da177e4SLinus Torvalds	bool "SA1100-based"
634c750815eSRussell King	select CPU_SA1100
635f7e68bbfSRussell King	select ISA
63605944d74SRussell King	select ARCH_SPARSEMEM_ENABLE
637034d2f5aSAl Viro	select ARCH_MTD_XIP
63889c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
6391937f5b9SRussell King	select CPU_FREQ
6400a938b97SDavid Brownell	select GENERIC_GPIO
641d142b6e7SRussell King	select GENERIC_TIME
6423e238be2SRussell King	select GENERIC_CLOCKEVENTS
6439483a578SDavid Brownell	select HAVE_CLK
6443e238be2SRussell King	select TICK_ONESHOT
6457444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
646f999b8bdSMartin Michlmayr	help
647f999b8bdSMartin Michlmayr	  Support for StrongARM 11x0 based boards.
6481da177e4SLinus Torvalds
6491da177e4SLinus Torvaldsconfig ARCH_S3C2410
65063b1f51bSBen Dooks	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
6510a938b97SDavid Brownell	select GENERIC_GPIO
6529d56c02aSBen Dooks	select ARCH_HAS_CPUFREQ
6539483a578SDavid Brownell	select HAVE_CLK
6541da177e4SLinus Torvalds	help
6551da177e4SLinus Torvalds	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
6561da177e4SLinus Torvalds	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
657f6c8965aSMartin Michlmayr	  the Samsung SMDK2410 development board (and derivatives).
6581da177e4SLinus Torvalds
65963b1f51bSBen Dooks	  Note, the S3C2416 and the S3C2450 are so close that they even share
66063b1f51bSBen Dooks	  the same SoC ID code. This means that there is no seperate machine
66163b1f51bSBen Dooks	  directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
66263b1f51bSBen Dooks
663a08ab637SBen Dooksconfig ARCH_S3C64XX
664a08ab637SBen Dooks	bool "Samsung S3C64XX"
66589f1fa08SBen Dooks	select PLAT_SAMSUNG
66689f0ce72SBen Dooks	select CPU_V6
667a08ab637SBen Dooks	select GENERIC_GPIO
66889f0ce72SBen Dooks	select ARM_VIC
669a08ab637SBen Dooks	select HAVE_CLK
67089f0ce72SBen Dooks	select NO_IOPORT
67189c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
67289f0ce72SBen Dooks	select ARCH_REQUIRE_GPIOLIB
67389f0ce72SBen Dooks	select SAMSUNG_CLKSRC
67489f0ce72SBen Dooks	select SAMSUNG_IRQ_VIC_TIMER
67589f0ce72SBen Dooks	select SAMSUNG_IRQ_UART
67689f0ce72SBen Dooks	select S3C_GPIO_TRACK
67789f0ce72SBen Dooks	select S3C_GPIO_PULL_UPDOWN
67889f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C24XX
67989f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C64XX
68089f0ce72SBen Dooks	select S3C_DEV_NAND
68189f0ce72SBen Dooks	select USB_ARCH_HAS_OHCI
68289f0ce72SBen Dooks	select SAMSUNG_GPIOLIB_4BIT
683a08ab637SBen Dooks	help
684a08ab637SBen Dooks	  Samsung S3C64XX series based systems
685a08ab637SBen Dooks
686c4ffccddSKukjin Kimconfig ARCH_S5P6440
687c4ffccddSKukjin Kim	bool "Samsung S5P6440"
688c4ffccddSKukjin Kim	select CPU_V6
689c4ffccddSKukjin Kim	select GENERIC_GPIO
690c4ffccddSKukjin Kim	select HAVE_CLK
691*925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
692c4ffccddSKukjin Kim	help
693c4ffccddSKukjin Kim	  Samsung S5P6440 CPU based systems
694c4ffccddSKukjin Kim
695550db7f1SKukjin Kimconfig ARCH_S5P6442
696550db7f1SKukjin Kim	bool "Samsung S5P6442"
697550db7f1SKukjin Kim	select CPU_V6
698550db7f1SKukjin Kim	select GENERIC_GPIO
699550db7f1SKukjin Kim	select HAVE_CLK
700*925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
701550db7f1SKukjin Kim	help
702550db7f1SKukjin Kim	  Samsung S5P6442 CPU based systems
703550db7f1SKukjin Kim
704acc84707SMarek Szyprowskiconfig ARCH_S5PC100
705acc84707SMarek Szyprowski	bool "Samsung S5PC100"
7065a7652f2SByungho Min	select GENERIC_GPIO
7075a7652f2SByungho Min	select HAVE_CLK
7085a7652f2SByungho Min	select CPU_V7
709d6d502faSKukjin Kim	select ARM_L1_CACHE_SHIFT_6
710*925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
7115a7652f2SByungho Min	help
712acc84707SMarek Szyprowski	  Samsung S5PC100 series based systems
7135a7652f2SByungho Min
714170f4e42SKukjin Kimconfig ARCH_S5PV210
715170f4e42SKukjin Kim	bool "Samsung S5PV210/S5PC110"
716170f4e42SKukjin Kim	select CPU_V7
717170f4e42SKukjin Kim	select GENERIC_GPIO
718170f4e42SKukjin Kim	select HAVE_CLK
719170f4e42SKukjin Kim	select ARM_L1_CACHE_SHIFT_6
720*925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
721170f4e42SKukjin Kim	help
722170f4e42SKukjin Kim	  Samsung S5PV210/S5PC110 series based systems
723170f4e42SKukjin Kim
7241da177e4SLinus Torvaldsconfig ARCH_SHARK
7251da177e4SLinus Torvalds	bool "Shark"
726c750815eSRussell King	select CPU_SA110
727f7e68bbfSRussell King	select ISA
728f7e68bbfSRussell King	select ISA_DMA
7293bca103aSNicolas Pitre	select ZONE_DMA
730f7e68bbfSRussell King	select PCI
731f999b8bdSMartin Michlmayr	help
732f999b8bdSMartin Michlmayr	  Support for the StrongARM based Digital DNARD machine, also known
733f999b8bdSMartin Michlmayr	  as "Shark" (<http://www.shark-linux.de/shark.html>).
7341da177e4SLinus Torvalds
7351da177e4SLinus Torvaldsconfig ARCH_LH7A40X
7361da177e4SLinus Torvalds	bool "Sharp LH7A40X"
737c750815eSRussell King	select CPU_ARM922T
7384ba3f7c5SRussell King	select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
7394ba3f7c5SRussell King	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
7401da177e4SLinus Torvalds	help
7411da177e4SLinus Torvalds	  Say Y here for systems based on one of the Sharp LH7A40X
7421da177e4SLinus Torvalds	  System on a Chip processors.  These CPUs include an ARM922T
7431da177e4SLinus Torvalds	  core with a wide array of integrated devices for
7441da177e4SLinus Torvalds	  hand-held and low-power applications.
7451da177e4SLinus Torvalds
746d98aac75SLinus Walleijconfig ARCH_U300
747d98aac75SLinus Walleij	bool "ST-Ericsson U300 Series"
748d98aac75SLinus Walleij	depends on MMU
749d98aac75SLinus Walleij	select CPU_ARM926T
750bc581770SLinus Walleij	select HAVE_TCM
751d98aac75SLinus Walleij	select ARM_AMBA
752d98aac75SLinus Walleij	select ARM_VIC
753d98aac75SLinus Walleij	select GENERIC_TIME
754d98aac75SLinus Walleij	select GENERIC_CLOCKEVENTS
755d98aac75SLinus Walleij	select HAVE_CLK
756d98aac75SLinus Walleij	select COMMON_CLKDEV
757d98aac75SLinus Walleij	select GENERIC_GPIO
758d98aac75SLinus Walleij	help
759d98aac75SLinus Walleij	  Support for ST-Ericsson U300 series mobile platforms.
760d98aac75SLinus Walleij
761ccf50e23SRussell Kingconfig ARCH_U8500
762ccf50e23SRussell King	bool "ST-Ericsson U8500 Series"
763ccf50e23SRussell King	select CPU_V7
764ccf50e23SRussell King	select ARM_AMBA
765ccf50e23SRussell King	select GENERIC_TIME
766ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
767ccf50e23SRussell King	select COMMON_CLKDEV
768ccf50e23SRussell King	help
769ccf50e23SRussell King	  Support for ST-Ericsson's Ux500 architecture
770ccf50e23SRussell King
771ccf50e23SRussell Kingconfig ARCH_NOMADIK
772ccf50e23SRussell King	bool "STMicroelectronics Nomadik"
773ccf50e23SRussell King	select ARM_AMBA
774ccf50e23SRussell King	select ARM_VIC
775ccf50e23SRussell King	select CPU_ARM926T
776ccf50e23SRussell King	select HAVE_CLK
777ccf50e23SRussell King	select COMMON_CLKDEV
778ccf50e23SRussell King	select GENERIC_TIME
779ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
780ccf50e23SRussell King	select GENERIC_GPIO
781ccf50e23SRussell King	select ARCH_REQUIRE_GPIOLIB
782ccf50e23SRussell King	help
783ccf50e23SRussell King	  Support for the Nomadik platform by ST-Ericsson
784ccf50e23SRussell King
7857c6337e2SKevin Hilmanconfig ARCH_DAVINCI
7867c6337e2SKevin Hilman	bool "TI DaVinci"
787c750815eSRussell King	select CPU_ARM926T
7887c6337e2SKevin Hilman	select GENERIC_TIME
7897c6337e2SKevin Hilman	select GENERIC_CLOCKEVENTS
7903d9edf09SVladimir Barinov	select GENERIC_GPIO
791dce1115bSDavid Brownell	select ARCH_REQUIRE_GPIOLIB
7929483a578SDavid Brownell	select HAVE_CLK
7933bca103aSNicolas Pitre	select ZONE_DMA
7949232fcc9SKevin Hilman	select HAVE_IDE
795c5b736d0SKevin Hilman	select COMMON_CLKDEV
79620e9969bSDavid Brownell	select GENERIC_ALLOCATOR
797ae88e05aSSekhar Nori	select ARCH_HAS_HOLES_MEMORYMODEL
7987c6337e2SKevin Hilman	help
7997c6337e2SKevin Hilman	  Support for TI's DaVinci platform.
8007c6337e2SKevin Hilman
8013b938be6SRussell Kingconfig ARCH_OMAP
8023b938be6SRussell King	bool "TI OMAP"
8033b938be6SRussell King	select GENERIC_GPIO
8049483a578SDavid Brownell	select HAVE_CLK
8057444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
80689c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
8073b938be6SRussell King	select GENERIC_TIME
80806cad098SKevin Hilman	select GENERIC_CLOCKEVENTS
8099af915daSSriram	select ARCH_HAS_HOLES_MEMORYMODEL
8103b938be6SRussell King	help
8113b938be6SRussell King	  Support for TI's OMAP platform (OMAP1 and OMAP2).
8123b938be6SRussell King
8131da177e4SLinus Torvaldsendchoice
8141da177e4SLinus Torvalds
815ccf50e23SRussell King#
816ccf50e23SRussell King# This is sorted alphabetically by mach-* pathname.  However, plat-*
817ccf50e23SRussell King# Kconfigs may be included either alphabetically (according to the
818ccf50e23SRussell King# plat- suffix) or along side the corresponding mach-* source.
819ccf50e23SRussell King#
82095b8f20fSRussell Kingsource "arch/arm/mach-aaec2000/Kconfig"
82195b8f20fSRussell King
82295b8f20fSRussell Kingsource "arch/arm/mach-at91/Kconfig"
82395b8f20fSRussell King
82495b8f20fSRussell Kingsource "arch/arm/mach-bcmring/Kconfig"
82595b8f20fSRussell King
8261da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig"
8271da177e4SLinus Torvalds
82895b8f20fSRussell Kingsource "arch/arm/mach-davinci/Kconfig"
82995b8f20fSRussell King
83095b8f20fSRussell Kingsource "arch/arm/mach-dove/Kconfig"
83195b8f20fSRussell King
832e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig"
833e7736d47SLennert Buytenhek
8341da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig"
8351da177e4SLinus Torvalds
83659d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig"
83759d3a193SPaulius Zaleckas
83895b8f20fSRussell Kingsource "arch/arm/mach-h720x/Kconfig"
83995b8f20fSRussell King
8401da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig"
8411da177e4SLinus Torvalds
8423f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig"
8433f7e5815SLennert Buytenhek
8443f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig"
8451da177e4SLinus Torvalds
846285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig"
847285f5fa7SDan Williams
8481da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig"
8491da177e4SLinus Torvalds
8501da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig"
8511da177e4SLinus Torvalds
852c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig"
853c4713074SLennert Buytenhek
85495b8f20fSRussell Kingsource "arch/arm/mach-kirkwood/Kconfig"
85595b8f20fSRussell King
85695b8f20fSRussell Kingsource "arch/arm/mach-ks8695/Kconfig"
85795b8f20fSRussell King
85895b8f20fSRussell Kingsource "arch/arm/mach-lh7a40x/Kconfig"
85995b8f20fSRussell King
860777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig"
861777f9bebSLennert Buytenhek
86295b8f20fSRussell Kingsource "arch/arm/mach-msm/Kconfig"
86395b8f20fSRussell King
864794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig"
865794d15b2SStanislav Samsonov
86695b8f20fSRussell Kingsource "arch/arm/plat-mxc/Kconfig"
8671da177e4SLinus Torvalds
86895b8f20fSRussell Kingsource "arch/arm/mach-netx/Kconfig"
86949cbe786SEric Miao
87095b8f20fSRussell Kingsource "arch/arm/mach-nomadik/Kconfig"
87195b8f20fSRussell Kingsource "arch/arm/plat-nomadik/Kconfig"
87295b8f20fSRussell King
87395b8f20fSRussell Kingsource "arch/arm/mach-ns9xxx/Kconfig"
8741da177e4SLinus Torvalds
875d91a8910SRussell Kingsource "arch/arm/mach-nuc93x/Kconfig"
876d91a8910SRussell King
877d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig"
878d48af15eSTony Lindgren
879d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig"
8801da177e4SLinus Torvalds
8811dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig"
8821dbae815STony Lindgren
8839dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig"
884585cf175STzachi Perelstein
88595b8f20fSRussell Kingsource "arch/arm/mach-pxa/Kconfig"
88695b8f20fSRussell Kingsource "arch/arm/plat-pxa/Kconfig"
8871da177e4SLinus Torvalds
88895b8f20fSRussell Kingsource "arch/arm/mach-mmp/Kconfig"
88995b8f20fSRussell King
89095b8f20fSRussell Kingsource "arch/arm/mach-realview/Kconfig"
89195b8f20fSRussell King
89295b8f20fSRussell Kingsource "arch/arm/mach-sa1100/Kconfig"
893edabd38eSSaeed Bishara
894cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig"
895a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig"
896c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig"
897a21765a7SBen Dooks
898a21765a7SBen Dooksif ARCH_S3C2410
899a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig"
9001da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig"
901a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig"
902f1290a49SYauhen Kharuzhysource "arch/arm/mach-s3c2416/Kconfig"
903a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig"
904e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig"
905a21765a7SBen Dooksendif
9061da177e4SLinus Torvalds
907a08ab637SBen Dooksif ARCH_S3C64XX
908431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig"
909a08ab637SBen Dooksendif
910a08ab637SBen Dooks
911c4ffccddSKukjin Kimsource "arch/arm/mach-s5p6440/Kconfig"
912c4ffccddSKukjin Kim
913550db7f1SKukjin Kimsource "arch/arm/mach-s5p6442/Kconfig"
9147bd0f2f5Sdmitry pervushin
9155a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig"
9165a7652f2SByungho Min
917170f4e42SKukjin Kimsource "arch/arm/mach-s5pv210/Kconfig"
918170f4e42SKukjin Kim
919882d01f9SRussell Kingsource "arch/arm/mach-shmobile/Kconfig"
9201da177e4SLinus Torvalds
921882d01f9SRussell Kingsource "arch/arm/plat-stmp3xxx/Kconfig"
9229e73c84cSBrian Swetland
92395b8f20fSRussell Kingsource "arch/arm/mach-u300/Kconfig"
92452c543f9SQuinn Jensen
92595b8f20fSRussell Kingsource "arch/arm/mach-ux500/Kconfig"
9261da177e4SLinus Torvalds
9271da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig"
9281da177e4SLinus Torvalds
9297ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig"
9307ec80ddfSwanzongshun
9311da177e4SLinus Torvalds# Definitions to make life easier
9321da177e4SLinus Torvaldsconfig ARCH_ACORN
9331da177e4SLinus Torvalds	bool
9341da177e4SLinus Torvalds
9357ae1f7ecSLennert Buytenhekconfig PLAT_IOP
9367ae1f7ecSLennert Buytenhek	bool
937469d3044SMikael Pettersson	select GENERIC_CLOCKEVENTS
938980f2296SMikael Pettersson	select GENERIC_TIME
9397ae1f7ecSLennert Buytenhek
94069b02f6aSLennert Buytenhekconfig PLAT_ORION
94169b02f6aSLennert Buytenhek	bool
94269b02f6aSLennert Buytenhek
943bd5ce433SEric Miaoconfig PLAT_PXA
944bd5ce433SEric Miao	bool
945bd5ce433SEric Miao
9461da177e4SLinus Torvaldssource arch/arm/mm/Kconfig
9471da177e4SLinus Torvalds
948afe4b25eSLennert Buytenhekconfig IWMMXT
949afe4b25eSLennert Buytenhek	bool "Enable iWMMXt support"
95040305a58SEric Miao	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
95140305a58SEric Miao	default y if PXA27x || PXA3xx || ARCH_MMP
952afe4b25eSLennert Buytenhek	help
953afe4b25eSLennert Buytenhek	  Enable support for iWMMXt context switching at run time if
954afe4b25eSLennert Buytenhek	  running on a CPU that supports it.
955afe4b25eSLennert Buytenhek
9561da177e4SLinus Torvalds#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
9571da177e4SLinus Torvaldsconfig XSCALE_PMU
9581da177e4SLinus Torvalds	bool
9591da177e4SLinus Torvalds	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
9601da177e4SLinus Torvalds	default y
9611da177e4SLinus Torvalds
9620f4f0672SJamie Ilesconfig CPU_HAS_PMU
9630f4f0672SJamie Iles	depends on CPU_V6 || CPU_V7 || XSCALE_PMU
9640f4f0672SJamie Iles	default y
9650f4f0672SJamie Iles	bool
9660f4f0672SJamie Iles
9673b93e7b0SHyok S. Choiif !MMU
9683b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu"
9693b93e7b0SHyok S. Choiendif
9703b93e7b0SHyok S. Choi
9719cba3cccSCatalin Marinasconfig ARM_ERRATA_411920
9729cba3cccSCatalin Marinas	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
9739cba3cccSCatalin Marinas	depends on CPU_V6 && !SMP
9749cba3cccSCatalin Marinas	help
9759cba3cccSCatalin Marinas	  Invalidation of the Instruction Cache operation can
9769cba3cccSCatalin Marinas	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
9779cba3cccSCatalin Marinas	  It does not affect the MPCore. This option enables the ARM Ltd.
9789cba3cccSCatalin Marinas	  recommended workaround.
9799cba3cccSCatalin Marinas
9807ce236fcSCatalin Marinasconfig ARM_ERRATA_430973
9817ce236fcSCatalin Marinas	bool "ARM errata: Stale prediction on replaced interworking branch"
9827ce236fcSCatalin Marinas	depends on CPU_V7
9837ce236fcSCatalin Marinas	help
9847ce236fcSCatalin Marinas	  This option enables the workaround for the 430973 Cortex-A8
9857ce236fcSCatalin Marinas	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
9867ce236fcSCatalin Marinas	  interworking branch is replaced with another code sequence at the
9877ce236fcSCatalin Marinas	  same virtual address, whether due to self-modifying code or virtual
9887ce236fcSCatalin Marinas	  to physical address re-mapping, Cortex-A8 does not recover from the
9897ce236fcSCatalin Marinas	  stale interworking branch prediction. This results in Cortex-A8
9907ce236fcSCatalin Marinas	  executing the new code sequence in the incorrect ARM or Thumb state.
9917ce236fcSCatalin Marinas	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
9927ce236fcSCatalin Marinas	  and also flushes the branch target cache at every context switch.
9937ce236fcSCatalin Marinas	  Note that setting specific bits in the ACTLR register may not be
9947ce236fcSCatalin Marinas	  available in non-secure mode.
9957ce236fcSCatalin Marinas
996855c551fSCatalin Marinasconfig ARM_ERRATA_458693
997855c551fSCatalin Marinas	bool "ARM errata: Processor deadlock when a false hazard is created"
998855c551fSCatalin Marinas	depends on CPU_V7
999855c551fSCatalin Marinas	help
1000855c551fSCatalin Marinas	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1001855c551fSCatalin Marinas	  erratum. For very specific sequences of memory operations, it is
1002855c551fSCatalin Marinas	  possible for a hazard condition intended for a cache line to instead
1003855c551fSCatalin Marinas	  be incorrectly associated with a different cache line. This false
1004855c551fSCatalin Marinas	  hazard might then cause a processor deadlock. The workaround enables
1005855c551fSCatalin Marinas	  the L1 caching of the NEON accesses and disables the PLD instruction
1006855c551fSCatalin Marinas	  in the ACTLR register. Note that setting specific bits in the ACTLR
1007855c551fSCatalin Marinas	  register may not be available in non-secure mode.
1008855c551fSCatalin Marinas
10090516e464SCatalin Marinasconfig ARM_ERRATA_460075
10100516e464SCatalin Marinas	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
10110516e464SCatalin Marinas	depends on CPU_V7
10120516e464SCatalin Marinas	help
10130516e464SCatalin Marinas	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
10140516e464SCatalin Marinas	  erratum. Any asynchronous access to the L2 cache may encounter a
10150516e464SCatalin Marinas	  situation in which recent store transactions to the L2 cache are lost
10160516e464SCatalin Marinas	  and overwritten with stale memory contents from external memory. The
10170516e464SCatalin Marinas	  workaround disables the write-allocate mode for the L2 cache via the
10180516e464SCatalin Marinas	  ACTLR register. Note that setting specific bits in the ACTLR register
10190516e464SCatalin Marinas	  may not be available in non-secure mode.
10200516e464SCatalin Marinas
10219e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369
10229e65582aSSantosh Shilimkar	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
10239e65582aSSantosh Shilimkar	depends on CACHE_L2X0 && ARCH_OMAP4
10249e65582aSSantosh Shilimkar	help
10259e65582aSSantosh Shilimkar	   The PL310 L2 cache controller implements three types of Clean &
10269e65582aSSantosh Shilimkar	   Invalidate maintenance operations: by Physical Address
10279e65582aSSantosh Shilimkar	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
10289e65582aSSantosh Shilimkar	   They are architecturally defined to behave as the execution of a
10299e65582aSSantosh Shilimkar	   clean operation followed immediately by an invalidate operation,
10309e65582aSSantosh Shilimkar	   both performing to the same memory location. This functionality
10319e65582aSSantosh Shilimkar	   is not correctly implemented in PL310 as clean lines are not
10329e65582aSSantosh Shilimkar	   invalidated as a result of these operations. Note that this errata
10339e65582aSSantosh Shilimkar	   uses Texas Instrument's secure monitor api.
10341da177e4SLinus Torvaldsendmenu
10351da177e4SLinus Torvalds
10361da177e4SLinus Torvaldssource "arch/arm/common/Kconfig"
10371da177e4SLinus Torvalds
10381da177e4SLinus Torvaldsconfig FORCE_MAX_ZONEORDER
10391da177e4SLinus Torvalds	int
10401da177e4SLinus Torvalds	depends on SA1111
10411da177e4SLinus Torvalds	default "9"
10421da177e4SLinus Torvalds
10431da177e4SLinus Torvaldsmenu "Bus support"
10441da177e4SLinus Torvalds
10451da177e4SLinus Torvaldsconfig ARM_AMBA
10461da177e4SLinus Torvalds	bool
10471da177e4SLinus Torvalds
10481da177e4SLinus Torvaldsconfig ISA
10491da177e4SLinus Torvalds	bool
10501da177e4SLinus Torvalds	help
10511da177e4SLinus Torvalds	  Find out whether you have ISA slots on your motherboard.  ISA is the
10521da177e4SLinus Torvalds	  name of a bus system, i.e. the way the CPU talks to the other stuff
10531da177e4SLinus Torvalds	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
10541da177e4SLinus Torvalds	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
10551da177e4SLinus Torvalds	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
10561da177e4SLinus Torvalds
1057065909b9SRussell King# Select ISA DMA controller support
10581da177e4SLinus Torvaldsconfig ISA_DMA
10591da177e4SLinus Torvalds	bool
1060065909b9SRussell King	select ISA_DMA_API
10611da177e4SLinus Torvalds
1062065909b9SRussell King# Select ISA DMA interface
10635cae841bSAl Viroconfig ISA_DMA_API
10645cae841bSAl Viro	bool
10655cae841bSAl Viro
10661da177e4SLinus Torvaldsconfig PCI
1067a0113a99SMike Rapoport	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
10681da177e4SLinus Torvalds	help
10691da177e4SLinus Torvalds	  Find out whether you have a PCI motherboard. PCI is the name of a
10701da177e4SLinus Torvalds	  bus system, i.e. the way the CPU talks to the other stuff inside
10711da177e4SLinus Torvalds	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
10721da177e4SLinus Torvalds	  VESA. If you have PCI, say Y, otherwise N.
10731da177e4SLinus Torvalds
107436e23590SMatthew Wilcoxconfig PCI_SYSCALL
107536e23590SMatthew Wilcox	def_bool PCI
107636e23590SMatthew Wilcox
10771da177e4SLinus Torvalds# Select the host bridge type
10781da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505
10791da177e4SLinus Torvalds	bool
10801da177e4SLinus Torvalds	depends on PCI && ARCH_SHARK
10811da177e4SLinus Torvalds	default y
10821da177e4SLinus Torvalds
1083a0113a99SMike Rapoportconfig PCI_HOST_ITE8152
1084a0113a99SMike Rapoport	bool
1085a0113a99SMike Rapoport	depends on PCI && MACH_ARMCORE
1086a0113a99SMike Rapoport	default y
1087a0113a99SMike Rapoport	select DMABOUNCE
1088a0113a99SMike Rapoport
10891da177e4SLinus Torvaldssource "drivers/pci/Kconfig"
10901da177e4SLinus Torvalds
10911da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig"
10921da177e4SLinus Torvalds
10931da177e4SLinus Torvaldsendmenu
10941da177e4SLinus Torvalds
10951da177e4SLinus Torvaldsmenu "Kernel Features"
10961da177e4SLinus Torvalds
10970567a0c0SKevin Hilmansource "kernel/time/Kconfig"
10980567a0c0SKevin Hilman
10991da177e4SLinus Torvaldsconfig SMP
11001da177e4SLinus Torvalds	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
110142578c82SRussell King	depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
1102850265e8SSrinidhi Kasagar		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
1103bc28248eSRussell King	depends on GENERIC_CLOCKEVENTS
1104f6dd9fa5SJens Axboe	select USE_GENERIC_SMP_HELPERS
1105850265e8SSrinidhi Kasagar	select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
11061da177e4SLinus Torvalds	help
11071da177e4SLinus Torvalds	  This enables support for systems with more than one CPU. If you have
11081da177e4SLinus Torvalds	  a system with only one CPU, like most personal computers, say N. If
11091da177e4SLinus Torvalds	  you have a system with more than one CPU, say Y.
11101da177e4SLinus Torvalds
11111da177e4SLinus Torvalds	  If you say N here, the kernel will run on single and multiprocessor
11121da177e4SLinus Torvalds	  machines, but will use only one CPU of a multiprocessor machine. If
11131da177e4SLinus Torvalds	  you say Y here, the kernel will run on many, but not all, single
11141da177e4SLinus Torvalds	  processor machines. On a single processor machine, the kernel will
11151da177e4SLinus Torvalds	  run faster if you say N here.
11161da177e4SLinus Torvalds
111703502faaSAdrian Bunk	  See also <file:Documentation/i386/IO-APIC.txt>,
11181da177e4SLinus Torvalds	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
11191da177e4SLinus Torvalds	  <http://www.linuxdoc.org/docs.html#howto>.
11201da177e4SLinus Torvalds
11211da177e4SLinus Torvalds	  If you don't know what to do here, say N.
11221da177e4SLinus Torvalds
1123a8cbcd92SRussell Kingconfig HAVE_ARM_SCU
1124a8cbcd92SRussell King	bool
1125a8cbcd92SRussell King	depends on SMP
1126a8cbcd92SRussell King	help
1127a8cbcd92SRussell King	  This option enables support for the ARM system coherency unit
1128a8cbcd92SRussell King
1129f32f4ce2SRussell Kingconfig HAVE_ARM_TWD
1130f32f4ce2SRussell King	bool
1131f32f4ce2SRussell King	depends on SMP
1132f32f4ce2SRussell King	help
1133f32f4ce2SRussell King	  This options enables support for the ARM timer and watchdog unit
1134f32f4ce2SRussell King
11358d5796d2SLennert Buytenhekchoice
11368d5796d2SLennert Buytenhek	prompt "Memory split"
11378d5796d2SLennert Buytenhek	default VMSPLIT_3G
11388d5796d2SLennert Buytenhek	help
11398d5796d2SLennert Buytenhek	  Select the desired split between kernel and user memory.
11408d5796d2SLennert Buytenhek
11418d5796d2SLennert Buytenhek	  If you are not absolutely sure what you are doing, leave this
11428d5796d2SLennert Buytenhek	  option alone!
11438d5796d2SLennert Buytenhek
11448d5796d2SLennert Buytenhek	config VMSPLIT_3G
11458d5796d2SLennert Buytenhek		bool "3G/1G user/kernel split"
11468d5796d2SLennert Buytenhek	config VMSPLIT_2G
11478d5796d2SLennert Buytenhek		bool "2G/2G user/kernel split"
11488d5796d2SLennert Buytenhek	config VMSPLIT_1G
11498d5796d2SLennert Buytenhek		bool "1G/3G user/kernel split"
11508d5796d2SLennert Buytenhekendchoice
11518d5796d2SLennert Buytenhek
11528d5796d2SLennert Buytenhekconfig PAGE_OFFSET
11538d5796d2SLennert Buytenhek	hex
11548d5796d2SLennert Buytenhek	default 0x40000000 if VMSPLIT_1G
11558d5796d2SLennert Buytenhek	default 0x80000000 if VMSPLIT_2G
11568d5796d2SLennert Buytenhek	default 0xC0000000
11578d5796d2SLennert Buytenhek
11581da177e4SLinus Torvaldsconfig NR_CPUS
11591da177e4SLinus Torvalds	int "Maximum number of CPUs (2-32)"
11601da177e4SLinus Torvalds	range 2 32
11611da177e4SLinus Torvalds	depends on SMP
11621da177e4SLinus Torvalds	default "4"
11631da177e4SLinus Torvalds
1164a054a811SRussell Kingconfig HOTPLUG_CPU
1165a054a811SRussell King	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1166a054a811SRussell King	depends on SMP && HOTPLUG && EXPERIMENTAL
1167a054a811SRussell King	help
1168a054a811SRussell King	  Say Y here to experiment with turning CPUs off and on.  CPUs
1169a054a811SRussell King	  can be controlled through /sys/devices/system/cpu.
1170a054a811SRussell King
117137ee16aeSRussell Kingconfig LOCAL_TIMERS
117237ee16aeSRussell King	bool "Use local timer interrupts"
117342578c82SRussell King	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1174850265e8SSrinidhi Kasagar		REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || ARCH_U8500)
117537ee16aeSRussell King	default y
1176850265e8SSrinidhi Kasagar	select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4 || ARCH_U8500)
117737ee16aeSRussell King	help
117837ee16aeSRussell King	  Enable support for local timers on SMP platforms, rather then the
117937ee16aeSRussell King	  legacy IPI broadcast method.  Local timers allows the system
118037ee16aeSRussell King	  accounting to be spread across the timer interval, preventing a
118137ee16aeSRussell King	  "thundering herd" at every timer tick.
118237ee16aeSRussell King
1183d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt
11841da177e4SLinus Torvalds
1185f8065813SRussell Kingconfig HZ
1186f8065813SRussell King	int
1187f8065813SRussell King	default 128 if ARCH_L7200
1188170f4e42SKukjin Kim	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P6440 || ARCH_S5P6442 || ARCH_S5PV210
1189bfe65704SRussell King	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
11905248c657SDavid Brownell	default AT91_TIMER_HZ if ARCH_AT91
1191f8065813SRussell King	default 100
1192f8065813SRussell King
119316c79651SCatalin Marinasconfig THUMB2_KERNEL
119416c79651SCatalin Marinas	bool "Compile the kernel in Thumb-2 mode"
119516c79651SCatalin Marinas	depends on CPU_V7 && EXPERIMENTAL
119616c79651SCatalin Marinas	select AEABI
119716c79651SCatalin Marinas	select ARM_ASM_UNIFIED
119816c79651SCatalin Marinas	help
119916c79651SCatalin Marinas	  By enabling this option, the kernel will be compiled in
120016c79651SCatalin Marinas	  Thumb-2 mode. A compiler/assembler that understand the unified
120116c79651SCatalin Marinas	  ARM-Thumb syntax is needed.
120216c79651SCatalin Marinas
120316c79651SCatalin Marinas	  If unsure, say N.
120416c79651SCatalin Marinas
12050becb088SCatalin Marinasconfig ARM_ASM_UNIFIED
12060becb088SCatalin Marinas	bool
12070becb088SCatalin Marinas
1208704bdda0SNicolas Pitreconfig AEABI
1209704bdda0SNicolas Pitre	bool "Use the ARM EABI to compile the kernel"
1210704bdda0SNicolas Pitre	help
1211704bdda0SNicolas Pitre	  This option allows for the kernel to be compiled using the latest
1212704bdda0SNicolas Pitre	  ARM ABI (aka EABI).  This is only useful if you are using a user
1213704bdda0SNicolas Pitre	  space environment that is also compiled with EABI.
1214704bdda0SNicolas Pitre
1215704bdda0SNicolas Pitre	  Since there are major incompatibilities between the legacy ABI and
1216704bdda0SNicolas Pitre	  EABI, especially with regard to structure member alignment, this
1217704bdda0SNicolas Pitre	  option also changes the kernel syscall calling convention to
1218704bdda0SNicolas Pitre	  disambiguate both ABIs and allow for backward compatibility support
1219704bdda0SNicolas Pitre	  (selected with CONFIG_OABI_COMPAT).
1220704bdda0SNicolas Pitre
1221704bdda0SNicolas Pitre	  To use this you need GCC version 4.0.0 or later.
1222704bdda0SNicolas Pitre
12236c90c872SNicolas Pitreconfig OABI_COMPAT
1224a73a3ff1SRussell King	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
122561c484d4SNicolas Pitre	depends on AEABI && EXPERIMENTAL
12266c90c872SNicolas Pitre	default y
12276c90c872SNicolas Pitre	help
12286c90c872SNicolas Pitre	  This option preserves the old syscall interface along with the
12296c90c872SNicolas Pitre	  new (ARM EABI) one. It also provides a compatibility layer to
12306c90c872SNicolas Pitre	  intercept syscalls that have structure arguments which layout
12316c90c872SNicolas Pitre	  in memory differs between the legacy ABI and the new ARM EABI
12326c90c872SNicolas Pitre	  (only for non "thumb" binaries). This option adds a tiny
12336c90c872SNicolas Pitre	  overhead to all syscalls and produces a slightly larger kernel.
12346c90c872SNicolas Pitre	  If you know you'll be using only pure EABI user space then you
12356c90c872SNicolas Pitre	  can say N here. If this option is not selected and you attempt
12366c90c872SNicolas Pitre	  to execute a legacy ABI binary then the result will be
12376c90c872SNicolas Pitre	  UNPREDICTABLE (in fact it can be predicted that it won't work
12386c90c872SNicolas Pitre	  at all). If in doubt say Y.
12396c90c872SNicolas Pitre
1240eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL
1241e80d6a24SMel Gorman	bool
1242e80d6a24SMel Gorman
124307a2f737SRussell King# Discontigmem is deprecated
12443f22ab27SDave Hansenconfig ARCH_DISCONTIGMEM_ENABLE
12451da177e4SLinus Torvalds	bool
12461da177e4SLinus Torvalds
124705944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE
124805944d74SRussell King	bool
124905944d74SRussell King
125007a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT
125107a2f737SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
125207a2f737SRussell King
125305944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL
125407a2f737SRussell King	def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
125505944d74SRussell King
1256c80d79d7SYasunori Gotoconfig NODES_SHIFT
1257c80d79d7SYasunori Goto	int
1258c80d79d7SYasunori Goto	default "4" if ARCH_LH7A40X
1259c80d79d7SYasunori Goto	default "2"
1260c80d79d7SYasunori Goto	depends on NEED_MULTIPLE_NODES
1261c80d79d7SYasunori Goto
1262053a96caSNicolas Pitreconfig HIGHMEM
1263053a96caSNicolas Pitre	bool "High Memory Support (EXPERIMENTAL)"
1264053a96caSNicolas Pitre	depends on MMU && EXPERIMENTAL
1265053a96caSNicolas Pitre	help
1266053a96caSNicolas Pitre	  The address space of ARM processors is only 4 Gigabytes large
1267053a96caSNicolas Pitre	  and it has to accommodate user address space, kernel address
1268053a96caSNicolas Pitre	  space as well as some memory mapped IO. That means that, if you
1269053a96caSNicolas Pitre	  have a large amount of physical memory and/or IO, not all of the
1270053a96caSNicolas Pitre	  memory can be "permanently mapped" by the kernel. The physical
1271053a96caSNicolas Pitre	  memory that is not permanently mapped is called "high memory".
1272053a96caSNicolas Pitre
1273053a96caSNicolas Pitre	  Depending on the selected kernel/user memory split, minimum
1274053a96caSNicolas Pitre	  vmalloc space and actual amount of RAM, you may not need this
1275053a96caSNicolas Pitre	  option which should result in a slightly faster kernel.
1276053a96caSNicolas Pitre
1277053a96caSNicolas Pitre	  If unsure, say n.
1278053a96caSNicolas Pitre
127965cec8e3SRussell Kingconfig HIGHPTE
128065cec8e3SRussell King	bool "Allocate 2nd-level pagetables from highmem"
128165cec8e3SRussell King	depends on HIGHMEM
128265cec8e3SRussell King	depends on !OUTER_CACHE
128365cec8e3SRussell King
12841b8873a0SJamie Ilesconfig HW_PERF_EVENTS
12851b8873a0SJamie Iles	bool "Enable hardware performance counter support for perf events"
1286796d1295SJean PIHET	depends on PERF_EVENTS && CPU_HAS_PMU && (CPU_V6 || CPU_V7)
12871b8873a0SJamie Iles	default y
12881b8873a0SJamie Iles	help
12891b8873a0SJamie Iles	  Enable hardware performance counter support for perf events. If
12901b8873a0SJamie Iles	  disabled, perf events will use software events only.
12911b8873a0SJamie Iles
12923f22ab27SDave Hansensource "mm/Kconfig"
12933f22ab27SDave Hansen
12941da177e4SLinus Torvaldsconfig LEDS
12951da177e4SLinus Torvalds	bool "Timer and CPU usage LEDs"
1296e055d5bfSAdrian Bunk	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
12978c8fdbc9SSascha Hauer		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
12981da177e4SLinus Torvalds		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
12991da177e4SLinus Torvalds		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
130073a59c1cSSAN People		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
130125329671SJürgen Schindele		   ARCH_AT91 || ARCH_DAVINCI || \
1302ff3042fbSColin Tuckley		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
13031da177e4SLinus Torvalds	help
13041da177e4SLinus Torvalds	  If you say Y here, the LEDs on your machine will be used
13051da177e4SLinus Torvalds	  to provide useful information about your current system status.
13061da177e4SLinus Torvalds
13071da177e4SLinus Torvalds	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
13081da177e4SLinus Torvalds	  be able to select which LEDs are active using the options below. If
13091da177e4SLinus Torvalds	  you are compiling a kernel for the EBSA-110 or the LART however, the
13101da177e4SLinus Torvalds	  red LED will simply flash regularly to indicate that the system is
13111da177e4SLinus Torvalds	  still functional. It is safe to say Y here if you have a CATS
13121da177e4SLinus Torvalds	  system, but the driver will do nothing.
13131da177e4SLinus Torvalds
13141da177e4SLinus Torvaldsconfig LEDS_TIMER
13151da177e4SLinus Torvalds	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1316eebdf7d7SDavid Brownell			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1317eebdf7d7SDavid Brownell			    || MACH_OMAP_PERSEUS2
13181da177e4SLinus Torvalds	depends on LEDS
13190567a0c0SKevin Hilman	depends on !GENERIC_CLOCKEVENTS
13201da177e4SLinus Torvalds	default y if ARCH_EBSA110
13211da177e4SLinus Torvalds	help
13221da177e4SLinus Torvalds	  If you say Y here, one of the system LEDs (the green one on the
13231da177e4SLinus Torvalds	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
13241da177e4SLinus Torvalds	  will flash regularly to indicate that the system is still
13251da177e4SLinus Torvalds	  operational. This is mainly useful to kernel hackers who are
13261da177e4SLinus Torvalds	  debugging unstable kernels.
13271da177e4SLinus Torvalds
13281da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
13291da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
13301da177e4SLinus Torvalds	  will overrule the CPU usage LED.
13311da177e4SLinus Torvalds
13321da177e4SLinus Torvaldsconfig LEDS_CPU
13331da177e4SLinus Torvalds	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1334eebdf7d7SDavid Brownell			!ARCH_OMAP) \
1335eebdf7d7SDavid Brownell			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1336eebdf7d7SDavid Brownell			|| MACH_OMAP_PERSEUS2
13371da177e4SLinus Torvalds	depends on LEDS
13381da177e4SLinus Torvalds	help
13391da177e4SLinus Torvalds	  If you say Y here, the red LED will be used to give a good real
13401da177e4SLinus Torvalds	  time indication of CPU usage, by lighting whenever the idle task
13411da177e4SLinus Torvalds	  is not currently executing.
13421da177e4SLinus Torvalds
13431da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
13441da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
13451da177e4SLinus Torvalds	  will overrule the CPU usage LED.
13461da177e4SLinus Torvalds
13471da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP
13481da177e4SLinus Torvalds	bool
1349f12d0d7cSHyok S. Choi	depends on CPU_CP15_MMU
13501da177e4SLinus Torvalds	default y if !ARCH_EBSA110
1351e119bfffSRussell King	select HAVE_PROC_CPU if PROC_FS
13521da177e4SLinus Torvalds	help
13531da177e4SLinus Torvalds	  ARM processors cannot fetch/store information which is not
13541da177e4SLinus Torvalds	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
13551da177e4SLinus Torvalds	  address divisible by 4. On 32-bit ARM processors, these non-aligned
13561da177e4SLinus Torvalds	  fetch/store instructions will be emulated in software if you say
13571da177e4SLinus Torvalds	  here, which has a severe performance impact. This is necessary for
13581da177e4SLinus Torvalds	  correct operation of some network protocols. With an IP-only
13591da177e4SLinus Torvalds	  configuration it is safe to say N, otherwise say Y.
13601da177e4SLinus Torvalds
136139ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY
136239ec58f3SLennert Buytenhek	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
136339ec58f3SLennert Buytenhek	depends on MMU && EXPERIMENTAL
136439ec58f3SLennert Buytenhek	default y if CPU_FEROCEON
136539ec58f3SLennert Buytenhek	help
136639ec58f3SLennert Buytenhek	  Implement faster copy_to_user and clear_user methods for CPU
136739ec58f3SLennert Buytenhek	  cores where a 8-word STM instruction give significantly higher
136839ec58f3SLennert Buytenhek	  memory write throughput than a sequence of individual 32bit stores.
136939ec58f3SLennert Buytenhek
137039ec58f3SLennert Buytenhek	  A possible side effect is a slight increase in scheduling latency
137139ec58f3SLennert Buytenhek	  between threads sharing the same address space if they invoke
137239ec58f3SLennert Buytenhek	  such copy operations with large buffers.
137339ec58f3SLennert Buytenhek
137439ec58f3SLennert Buytenhek	  However, if the CPU data cache is using a write-allocate mode,
137539ec58f3SLennert Buytenhek	  this option is unlikely to provide any performance gain.
137639ec58f3SLennert Buytenhek
13771da177e4SLinus Torvaldsendmenu
13781da177e4SLinus Torvalds
13791da177e4SLinus Torvaldsmenu "Boot options"
13801da177e4SLinus Torvalds
13811da177e4SLinus Torvalds# Compressed boot loader in ROM.  Yes, we really want to ask about
13821da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files.
13831da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT
13841da177e4SLinus Torvalds	hex "Compressed ROM boot loader base address"
13851da177e4SLinus Torvalds	default "0"
13861da177e4SLinus Torvalds	help
13871da177e4SLinus Torvalds	  The physical address at which the ROM-able zImage is to be
13881da177e4SLinus Torvalds	  placed in the target.  Platforms which normally make use of
13891da177e4SLinus Torvalds	  ROM-able zImage formats normally set this to a suitable
13901da177e4SLinus Torvalds	  value in their defconfig file.
13911da177e4SLinus Torvalds
13921da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
13931da177e4SLinus Torvalds
13941da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS
13951da177e4SLinus Torvalds	hex "Compressed ROM boot loader BSS address"
13961da177e4SLinus Torvalds	default "0"
13971da177e4SLinus Torvalds	help
1398f8c440b2SDan Fandrich	  The base address of an area of read/write memory in the target
1399f8c440b2SDan Fandrich	  for the ROM-able zImage which must be available while the
1400f8c440b2SDan Fandrich	  decompressor is running. It must be large enough to hold the
1401f8c440b2SDan Fandrich	  entire decompressed kernel plus an additional 128 KiB.
1402f8c440b2SDan Fandrich	  Platforms which normally make use of ROM-able zImage formats
1403f8c440b2SDan Fandrich	  normally set this to a suitable value in their defconfig file.
14041da177e4SLinus Torvalds
14051da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
14061da177e4SLinus Torvalds
14071da177e4SLinus Torvaldsconfig ZBOOT_ROM
14081da177e4SLinus Torvalds	bool "Compressed boot loader in ROM/flash"
14091da177e4SLinus Torvalds	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
14101da177e4SLinus Torvalds	help
14111da177e4SLinus Torvalds	  Say Y here if you intend to execute your compressed kernel image
14121da177e4SLinus Torvalds	  (zImage) directly from ROM or flash.  If unsure, say N.
14131da177e4SLinus Torvalds
14141da177e4SLinus Torvaldsconfig CMDLINE
14151da177e4SLinus Torvalds	string "Default kernel command string"
14161da177e4SLinus Torvalds	default ""
14171da177e4SLinus Torvalds	help
14181da177e4SLinus Torvalds	  On some architectures (EBSA110 and CATS), there is currently no way
14191da177e4SLinus Torvalds	  for the boot loader to pass arguments to the kernel. For these
14201da177e4SLinus Torvalds	  architectures, you should supply some command-line options at build
14211da177e4SLinus Torvalds	  time by entering them here. As a minimum, you should specify the
14221da177e4SLinus Torvalds	  memory size and the root device (e.g., mem=64M root=/dev/nfs).
14231da177e4SLinus Torvalds
14241da177e4SLinus Torvaldsconfig XIP_KERNEL
14251da177e4SLinus Torvalds	bool "Kernel Execute-In-Place from ROM"
14261da177e4SLinus Torvalds	depends on !ZBOOT_ROM
14271da177e4SLinus Torvalds	help
14281da177e4SLinus Torvalds	  Execute-In-Place allows the kernel to run from non-volatile storage
14291da177e4SLinus Torvalds	  directly addressable by the CPU, such as NOR flash. This saves RAM
14301da177e4SLinus Torvalds	  space since the text section of the kernel is not loaded from flash
14311da177e4SLinus Torvalds	  to RAM.  Read-write sections, such as the data section and stack,
14321da177e4SLinus Torvalds	  are still copied to RAM.  The XIP kernel is not compressed since
14331da177e4SLinus Torvalds	  it has to run directly from flash, so it will take more space to
14341da177e4SLinus Torvalds	  store it.  The flash address used to link the kernel object files,
14351da177e4SLinus Torvalds	  and for storing it, is configuration dependent. Therefore, if you
14361da177e4SLinus Torvalds	  say Y here, you must know the proper physical address where to
14371da177e4SLinus Torvalds	  store the kernel image depending on your own flash memory usage.
14381da177e4SLinus Torvalds
14391da177e4SLinus Torvalds	  Also note that the make target becomes "make xipImage" rather than
14401da177e4SLinus Torvalds	  "make zImage" or "make Image".  The final kernel binary to put in
14411da177e4SLinus Torvalds	  ROM memory will be arch/arm/boot/xipImage.
14421da177e4SLinus Torvalds
14431da177e4SLinus Torvalds	  If unsure, say N.
14441da177e4SLinus Torvalds
14451da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR
14461da177e4SLinus Torvalds	hex "XIP Kernel Physical Location"
14471da177e4SLinus Torvalds	depends on XIP_KERNEL
14481da177e4SLinus Torvalds	default "0x00080000"
14491da177e4SLinus Torvalds	help
14501da177e4SLinus Torvalds	  This is the physical address in your flash memory the kernel will
14511da177e4SLinus Torvalds	  be linked for and stored to.  This address is dependent on your
14521da177e4SLinus Torvalds	  own flash usage.
14531da177e4SLinus Torvalds
1454c587e4a6SRichard Purdieconfig KEXEC
1455c587e4a6SRichard Purdie	bool "Kexec system call (EXPERIMENTAL)"
1456c587e4a6SRichard Purdie	depends on EXPERIMENTAL
1457c587e4a6SRichard Purdie	help
1458c587e4a6SRichard Purdie	  kexec is a system call that implements the ability to shutdown your
1459c587e4a6SRichard Purdie	  current kernel, and to start another kernel.  It is like a reboot
146001dd2fbfSMatt LaPlante	  but it is independent of the system firmware.   And like a reboot
1461c587e4a6SRichard Purdie	  you can start any kernel with it, not just Linux.
1462c587e4a6SRichard Purdie
1463c587e4a6SRichard Purdie	  It is an ongoing process to be certain the hardware in a machine
1464c587e4a6SRichard Purdie	  is properly shutdown, so do not be surprised if this code does not
1465c587e4a6SRichard Purdie	  initially work for you.  It may help to enable device hotplugging
1466c587e4a6SRichard Purdie	  support.
1467c587e4a6SRichard Purdie
14684cd9d6f7SRichard Purdieconfig ATAGS_PROC
14694cd9d6f7SRichard Purdie	bool "Export atags in procfs"
1470b98d7291SUli Luckas	depends on KEXEC
1471b98d7291SUli Luckas	default y
14724cd9d6f7SRichard Purdie	help
14734cd9d6f7SRichard Purdie	  Should the atags used to boot the kernel be exported in an "atags"
14744cd9d6f7SRichard Purdie	  file in procfs. Useful with kexec.
14754cd9d6f7SRichard Purdie
14761da177e4SLinus Torvaldsendmenu
14771da177e4SLinus Torvalds
1478ac9d7efcSRussell Kingmenu "CPU Power Management"
14791da177e4SLinus Torvalds
148089c52ed4SBen Dooksif ARCH_HAS_CPUFREQ
14811da177e4SLinus Torvalds
14821da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig"
14831da177e4SLinus Torvalds
14841da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100
14851da177e4SLinus Torvalds	bool
14861da177e4SLinus Torvalds
14871da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110
14881da177e4SLinus Torvalds	bool
14891da177e4SLinus Torvalds
14901da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR
14911da177e4SLinus Torvalds	tristate "CPUfreq driver for ARM Integrator CPUs"
14921da177e4SLinus Torvalds	depends on ARCH_INTEGRATOR && CPU_FREQ
14931da177e4SLinus Torvalds	default y
14941da177e4SLinus Torvalds	help
14951da177e4SLinus Torvalds	  This enables the CPUfreq driver for ARM Integrator CPUs.
14961da177e4SLinus Torvalds
14971da177e4SLinus Torvalds	  For details, take a look at <file:Documentation/cpu-freq>.
14981da177e4SLinus Torvalds
14991da177e4SLinus Torvalds	  If in doubt, say Y.
15001da177e4SLinus Torvalds
15019e2697ffSRussell Kingconfig CPU_FREQ_PXA
15029e2697ffSRussell King	bool
15039e2697ffSRussell King	depends on CPU_FREQ && ARCH_PXA && PXA25x
15049e2697ffSRussell King	default y
15059e2697ffSRussell King	select CPU_FREQ_DEFAULT_GOV_USERSPACE
15069e2697ffSRussell King
1507b3748dddSMark Brownconfig CPU_FREQ_S3C64XX
1508b3748dddSMark Brown	bool "CPUfreq support for Samsung S3C64XX CPUs"
1509b3748dddSMark Brown	depends on CPU_FREQ && CPU_S3C6410
1510b3748dddSMark Brown
15119d56c02aSBen Dooksconfig CPU_FREQ_S3C
15129d56c02aSBen Dooks	bool
15139d56c02aSBen Dooks	help
15149d56c02aSBen Dooks	  Internal configuration node for common cpufreq on Samsung SoC
15159d56c02aSBen Dooks
15169d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX
15179d56c02aSBen Dooks	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
15189d56c02aSBen Dooks	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
15199d56c02aSBen Dooks	select CPU_FREQ_S3C
15209d56c02aSBen Dooks	help
15219d56c02aSBen Dooks	  This enables the CPUfreq driver for the Samsung S3C24XX family
15229d56c02aSBen Dooks	  of CPUs.
15239d56c02aSBen Dooks
15249d56c02aSBen Dooks	  For details, take a look at <file:Documentation/cpu-freq>.
15259d56c02aSBen Dooks
15269d56c02aSBen Dooks	  If in doubt, say N.
15279d56c02aSBen Dooks
15289d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL
15299d56c02aSBen Dooks	bool "Support CPUfreq changing of PLL frequency"
15309d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
15319d56c02aSBen Dooks	help
15329d56c02aSBen Dooks	  Compile in support for changing the PLL frequency from the
15339d56c02aSBen Dooks	  S3C24XX series CPUfreq driver. The PLL takes time to settle
15349d56c02aSBen Dooks	  after a frequency change, so by default it is not enabled.
15359d56c02aSBen Dooks
15369d56c02aSBen Dooks	  This also means that the PLL tables for the selected CPU(s) will
15379d56c02aSBen Dooks	  be built which may increase the size of the kernel image.
15389d56c02aSBen Dooks
15399d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG
15409d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver core"
15419d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
15429d56c02aSBen Dooks	help
15439d56c02aSBen Dooks	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
15449d56c02aSBen Dooks
15459d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG
15469d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver IO timing"
15479d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
15489d56c02aSBen Dooks	help
15499d56c02aSBen Dooks	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
15509d56c02aSBen Dooks
1551e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS
1552e6d197a6SBen Dooks	bool "Export debugfs for CPUFreq"
1553e6d197a6SBen Dooks	depends on CPU_FREQ_S3C24XX && DEBUG_FS
1554e6d197a6SBen Dooks	help
1555e6d197a6SBen Dooks	  Export status information via debugfs.
1556e6d197a6SBen Dooks
15571da177e4SLinus Torvaldsendif
15581da177e4SLinus Torvalds
1559ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig"
1560ac9d7efcSRussell King
1561ac9d7efcSRussell Kingendmenu
1562ac9d7efcSRussell King
15631da177e4SLinus Torvaldsmenu "Floating point emulation"
15641da177e4SLinus Torvalds
15651da177e4SLinus Torvaldscomment "At least one emulation must be selected"
15661da177e4SLinus Torvalds
15671da177e4SLinus Torvaldsconfig FPE_NWFPE
15681da177e4SLinus Torvalds	bool "NWFPE math emulation"
15698993a44cSNicolas Pitre	depends on !AEABI || OABI_COMPAT
15701da177e4SLinus Torvalds	---help---
15711da177e4SLinus Torvalds	  Say Y to include the NWFPE floating point emulator in the kernel.
15721da177e4SLinus Torvalds	  This is necessary to run most binaries. Linux does not currently
15731da177e4SLinus Torvalds	  support floating point hardware so you need to say Y here even if
15741da177e4SLinus Torvalds	  your machine has an FPA or floating point co-processor podule.
15751da177e4SLinus Torvalds
15761da177e4SLinus Torvalds	  You may say N here if you are going to load the Acorn FPEmulator
15771da177e4SLinus Torvalds	  early in the bootup.
15781da177e4SLinus Torvalds
15791da177e4SLinus Torvaldsconfig FPE_NWFPE_XP
15801da177e4SLinus Torvalds	bool "Support extended precision"
1581bedf142bSLennert Buytenhek	depends on FPE_NWFPE
15821da177e4SLinus Torvalds	help
15831da177e4SLinus Torvalds	  Say Y to include 80-bit support in the kernel floating-point
15841da177e4SLinus Torvalds	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
15851da177e4SLinus Torvalds	  Note that gcc does not generate 80-bit operations by default,
15861da177e4SLinus Torvalds	  so in most cases this option only enlarges the size of the
15871da177e4SLinus Torvalds	  floating point emulator without any good reason.
15881da177e4SLinus Torvalds
15891da177e4SLinus Torvalds	  You almost surely want to say N here.
15901da177e4SLinus Torvalds
15911da177e4SLinus Torvaldsconfig FPE_FASTFPE
15921da177e4SLinus Torvalds	bool "FastFPE math emulation (EXPERIMENTAL)"
15938993a44cSNicolas Pitre	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
15941da177e4SLinus Torvalds	---help---
15951da177e4SLinus Torvalds	  Say Y here to include the FAST floating point emulator in the kernel.
15961da177e4SLinus Torvalds	  This is an experimental much faster emulator which now also has full
15971da177e4SLinus Torvalds	  precision for the mantissa.  It does not support any exceptions.
15981da177e4SLinus Torvalds	  It is very simple, and approximately 3-6 times faster than NWFPE.
15991da177e4SLinus Torvalds
16001da177e4SLinus Torvalds	  It should be sufficient for most programs.  It may be not suitable
16011da177e4SLinus Torvalds	  for scientific calculations, but you have to check this for yourself.
16021da177e4SLinus Torvalds	  If you do not feel you need a faster FP emulation you should better
16031da177e4SLinus Torvalds	  choose NWFPE.
16041da177e4SLinus Torvalds
16051da177e4SLinus Torvaldsconfig VFP
16061da177e4SLinus Torvalds	bool "VFP-format floating point maths"
1607c00d4ffdSRussell King	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
16081da177e4SLinus Torvalds	help
16091da177e4SLinus Torvalds	  Say Y to include VFP support code in the kernel. This is needed
16101da177e4SLinus Torvalds	  if your hardware includes a VFP unit.
16111da177e4SLinus Torvalds
16121da177e4SLinus Torvalds	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
16131da177e4SLinus Torvalds	  release notes and additional status information.
16141da177e4SLinus Torvalds
16151da177e4SLinus Torvalds	  Say N if your target does not have VFP hardware.
16161da177e4SLinus Torvalds
161725ebee02SCatalin Marinasconfig VFPv3
161825ebee02SCatalin Marinas	bool
161925ebee02SCatalin Marinas	depends on VFP
162025ebee02SCatalin Marinas	default y if CPU_V7
162125ebee02SCatalin Marinas
1622b5872db4SCatalin Marinasconfig NEON
1623b5872db4SCatalin Marinas	bool "Advanced SIMD (NEON) Extension support"
1624b5872db4SCatalin Marinas	depends on VFPv3 && CPU_V7
1625b5872db4SCatalin Marinas	help
1626b5872db4SCatalin Marinas	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1627b5872db4SCatalin Marinas	  Extension.
1628b5872db4SCatalin Marinas
16291da177e4SLinus Torvaldsendmenu
16301da177e4SLinus Torvalds
16311da177e4SLinus Torvaldsmenu "Userspace binary formats"
16321da177e4SLinus Torvalds
16331da177e4SLinus Torvaldssource "fs/Kconfig.binfmt"
16341da177e4SLinus Torvalds
16351da177e4SLinus Torvaldsconfig ARTHUR
16361da177e4SLinus Torvalds	tristate "RISC OS personality"
1637704bdda0SNicolas Pitre	depends on !AEABI
16381da177e4SLinus Torvalds	help
16391da177e4SLinus Torvalds	  Say Y here to include the kernel code necessary if you want to run
16401da177e4SLinus Torvalds	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
16411da177e4SLinus Torvalds	  experimental; if this sounds frightening, say N and sleep in peace.
16421da177e4SLinus Torvalds	  You can also say M here to compile this support as a module (which
16431da177e4SLinus Torvalds	  will be called arthur).
16441da177e4SLinus Torvalds
16451da177e4SLinus Torvaldsendmenu
16461da177e4SLinus Torvalds
16471da177e4SLinus Torvaldsmenu "Power management options"
16481da177e4SLinus Torvalds
1649eceab4acSRussell Kingsource "kernel/power/Kconfig"
16501da177e4SLinus Torvalds
1651f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE
1652f4cb5700SJohannes Berg	def_bool y
1653f4cb5700SJohannes Berg
16541da177e4SLinus Torvaldsendmenu
16551da177e4SLinus Torvalds
1656d5950b43SSam Ravnborgsource "net/Kconfig"
1657d5950b43SSam Ravnborg
1658ac25150fSUwe Kleine-Königsource "drivers/Kconfig"
16591da177e4SLinus Torvalds
16601da177e4SLinus Torvaldssource "fs/Kconfig"
16611da177e4SLinus Torvalds
16621da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug"
16631da177e4SLinus Torvalds
16641da177e4SLinus Torvaldssource "security/Kconfig"
16651da177e4SLinus Torvalds
16661da177e4SLinus Torvaldssource "crypto/Kconfig"
16671da177e4SLinus Torvalds
16681da177e4SLinus Torvaldssource "lib/Kconfig"
1669