xref: /linux/arch/arm/Kconfig (revision e3f4c0ab916334e861fc49eeb2673a8c13e978e7)
11da177e4SLinus Torvaldsconfig ARM
21da177e4SLinus Torvalds	bool
31da177e4SLinus Torvalds	default y
4e17c6d56SDavid Woodhouse	select HAVE_AOUT
52064c946SAdrian Bunk	select HAVE_IDE
62778f620SRussell King	select HAVE_MEMBLOCK
712b824fbSAlessandro Zummo	select RTC_LIB
875e7153aSRalf Baechle	select SYS_SUPPORTS_APM_EMULATION
9d4c7b1f9SWill Deacon	select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
10fe166148SWill Deacon	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
115cbad0ebSJason Wessel	select HAVE_ARCH_KGDB
123f550096SMathieu Desnoyers	select HAVE_KPROBES if (!XIP_KERNEL)
139edddaa2SAnanth N Mavinakayanahalli	select HAVE_KRETPROBES if (HAVE_KPROBES)
14606576ceSSteven Rostedt	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1580be7a7fSRabin Vincent	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
1680be7a7fSRabin Vincent	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
170e341af8SRabin Vincent	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
181fe53268SDmitry Baryshkov	select HAVE_GENERIC_DMA_COHERENT
19e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_GZIP
20e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_LZO
216e8699f7SAlbin Tonnerre	select HAVE_KERNEL_LZMA
22e360adbeSPeter Zijlstra	select HAVE_IRQ_WORK
237ada189fSJamie Iles	select HAVE_PERF_EVENTS
247ada189fSJamie Iles	select PERF_USE_VMALLOC
25e513f8bfSWill Deacon	select HAVE_REGS_AND_STACK_ACCESS_API
2619852e59SWill Deacon	select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
271da177e4SLinus Torvalds	help
281da177e4SLinus Torvalds	  The ARM series is a line of low-power-consumption RISC chip designs
29f6c8965aSMartin Michlmayr	  licensed by ARM Ltd and targeted at embedded applications and
301da177e4SLinus Torvalds	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
311da177e4SLinus Torvalds	  manufactured, but legacy ARM-based PC hardware remains popular in
321da177e4SLinus Torvalds	  Europe.  There is an ARM Linux project with a web page at
331da177e4SLinus Torvalds	  <http://www.arm.linux.org.uk/>.
341da177e4SLinus Torvalds
351a189b97SRussell Kingconfig HAVE_PWM
361a189b97SRussell King	bool
371a189b97SRussell King
3875e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION
3975e7153aSRalf Baechle	bool
4075e7153aSRalf Baechle
41112f38a4SRussell Kingconfig HAVE_SCHED_CLOCK
42112f38a4SRussell King	bool
43112f38a4SRussell King
440a938b97SDavid Brownellconfig GENERIC_GPIO
450a938b97SDavid Brownell	bool
460a938b97SDavid Brownell
475cfc8ee0SJohn Stultzconfig ARCH_USES_GETTIMEOFFSET
485cfc8ee0SJohn Stultz	bool
495cfc8ee0SJohn Stultz	default n
50746140c7SKevin Hilman
510567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS
520567a0c0SKevin Hilman	bool
530567a0c0SKevin Hilman
54a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST
55a8655e83SCatalin Marinas	bool
56a8655e83SCatalin Marinas	depends on GENERIC_CLOCKEVENTS
575388a6b2SRussell King	default y if SMP
58a8655e83SCatalin Marinas
59bc581770SLinus Walleijconfig HAVE_TCM
60bc581770SLinus Walleij	bool
61bc581770SLinus Walleij	select GENERIC_ALLOCATOR
62bc581770SLinus Walleij
63e119bfffSRussell Kingconfig HAVE_PROC_CPU
64e119bfffSRussell King	bool
65e119bfffSRussell King
665ea81769SAl Viroconfig NO_IOPORT
675ea81769SAl Viro	bool
685ea81769SAl Viro
691da177e4SLinus Torvaldsconfig EISA
701da177e4SLinus Torvalds	bool
711da177e4SLinus Torvalds	---help---
721da177e4SLinus Torvalds	  The Extended Industry Standard Architecture (EISA) bus was
731da177e4SLinus Torvalds	  developed as an open alternative to the IBM MicroChannel bus.
741da177e4SLinus Torvalds
751da177e4SLinus Torvalds	  The EISA bus provided some of the features of the IBM MicroChannel
761da177e4SLinus Torvalds	  bus while maintaining backward compatibility with cards made for
771da177e4SLinus Torvalds	  the older ISA bus.  The EISA bus saw limited use between 1988 and
781da177e4SLinus Torvalds	  1995 when it was made obsolete by the PCI bus.
791da177e4SLinus Torvalds
801da177e4SLinus Torvalds	  Say Y here if you are building a kernel for an EISA-based machine.
811da177e4SLinus Torvalds
821da177e4SLinus Torvalds	  Otherwise, say N.
831da177e4SLinus Torvalds
841da177e4SLinus Torvaldsconfig SBUS
851da177e4SLinus Torvalds	bool
861da177e4SLinus Torvalds
871da177e4SLinus Torvaldsconfig MCA
881da177e4SLinus Torvalds	bool
891da177e4SLinus Torvalds	help
901da177e4SLinus Torvalds	  MicroChannel Architecture is found in some IBM PS/2 machines and
911da177e4SLinus Torvalds	  laptops.  It is a bus system similar to PCI or ISA. See
921da177e4SLinus Torvalds	  <file:Documentation/mca.txt> (and especially the web page given
931da177e4SLinus Torvalds	  there) before attempting to build an MCA bus kernel.
941da177e4SLinus Torvalds
954a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS
964a2581a0SThomas Gleixner	bool
974a2581a0SThomas Gleixner	default y
984a2581a0SThomas Gleixner
99f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT
100f16fb1ecSRussell King	bool
101f16fb1ecSRussell King	default y
102f16fb1ecSRussell King
103f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT
104f76e9154SNicolas Pitre	bool
105f76e9154SNicolas Pitre	depends on !SMP
106f76e9154SNicolas Pitre	default y
107f76e9154SNicolas Pitre
108f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT
109f16fb1ecSRussell King	bool
110f16fb1ecSRussell King	default y
111f16fb1ecSRussell King
1127ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT
1137ad1bcb2SRussell King	bool
1147ad1bcb2SRussell King	default y
1157ad1bcb2SRussell King
1164a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND
1174a2581a0SThomas Gleixner	bool
1184a2581a0SThomas Gleixner	default y
1194a2581a0SThomas Gleixner
1204a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE
1214a2581a0SThomas Gleixner	bool
1224a2581a0SThomas Gleixner	default y
1234a2581a0SThomas Gleixner
12495c354feSNick Pigginconfig GENERIC_LOCKBREAK
12595c354feSNick Piggin	bool
12695c354feSNick Piggin	default y
12795c354feSNick Piggin	depends on SMP && PREEMPT
12895c354feSNick Piggin
1291da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK
1301da177e4SLinus Torvalds	bool
1311da177e4SLinus Torvalds	default y
1321da177e4SLinus Torvalds
1331da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM
1341da177e4SLinus Torvalds	bool
1351da177e4SLinus Torvalds
136f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32
137f0d1b0b3SDavid Howells	bool
138f0d1b0b3SDavid Howells
139f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64
140f0d1b0b3SDavid Howells	bool
141f0d1b0b3SDavid Howells
14289c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ
14389c52ed4SBen Dooks	bool
14489c52ed4SBen Dooks	help
14589c52ed4SBen Dooks	  Internal node to signify that the ARCH has CPUFREQ support
14689c52ed4SBen Dooks	  and that the relevant menu configurations are displayed for
14789c52ed4SBen Dooks	  it.
14889c52ed4SBen Dooks
149c7b0aff4SKevin Hilmanconfig ARCH_HAS_CPU_IDLE_WAIT
150c7b0aff4SKevin Hilman       def_bool y
151c7b0aff4SKevin Hilman
152b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT
153b89c3b16SAkinobu Mita	bool
154b89c3b16SAkinobu Mita	default y
155b89c3b16SAkinobu Mita
1561da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY
1571da177e4SLinus Torvalds	bool
1581da177e4SLinus Torvalds	default y
1591da177e4SLinus Torvalds
160a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC
161a08b6b79Sviro@ZenIV.linux.org.uk	bool
162a08b6b79Sviro@ZenIV.linux.org.uk
1635ac6da66SChristoph Lameterconfig ZONE_DMA
1645ac6da66SChristoph Lameter	bool
1655ac6da66SChristoph Lameter
166ccd7ab7fSFUJITA Tomonoriconfig NEED_DMA_MAP_STATE
167ccd7ab7fSFUJITA Tomonori       def_bool y
168ccd7ab7fSFUJITA Tomonori
1691da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA
1701da177e4SLinus Torvalds	bool
1711da177e4SLinus Torvalds
1721da177e4SLinus Torvaldsconfig FIQ
1731da177e4SLinus Torvalds	bool
1741da177e4SLinus Torvalds
175034d2f5aSAl Viroconfig ARCH_MTD_XIP
176034d2f5aSAl Viro	bool
177034d2f5aSAl Viro
17860a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ
17960a752efSPaulius Zaleckas	def_bool y
18060a752efSPaulius Zaleckas
181d6d502faSKukjin Kimconfig ARM_L1_CACHE_SHIFT_6
182d6d502faSKukjin Kim	bool
183d6d502faSKukjin Kim	help
184d6d502faSKukjin Kim	  Setting ARM L1 cache line size to 64 Bytes.
185d6d502faSKukjin Kim
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
207ccf50e23SRussell King#
208ccf50e23SRussell King# The "ARM system type" choice list is ordered alphabetically by option
209ccf50e23SRussell King# text.  Please add new entries in the option alphabetic order.
210ccf50e23SRussell King#
2111da177e4SLinus Torvaldschoice
2121da177e4SLinus Torvalds	prompt "ARM system type"
2136a0e2430SCatalin Marinas	default ARCH_VERSATILE
2141da177e4SLinus Torvalds
2154af6fee1SDeepak Saxenaconfig ARCH_AAEC2000
2164af6fee1SDeepak Saxena	bool "Agilent AAEC-2000 based"
217c750815eSRussell King	select CPU_ARM920T
2184af6fee1SDeepak Saxena	select ARM_AMBA
2199483a578SDavid Brownell	select HAVE_CLK
2205cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
2214af6fee1SDeepak Saxena	help
2224af6fee1SDeepak Saxena	  This enables support for systems based on the Agilent AAEC-2000
2234af6fee1SDeepak Saxena
2244af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR
2254af6fee1SDeepak Saxena	bool "ARM Ltd. Integrator family"
2264af6fee1SDeepak Saxena	select ARM_AMBA
22789c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
228d72fbdf0SRussell King	select COMMON_CLKDEV
229c5a0adb5SRussell King	select ICST
23013edd86dSRussell King	select GENERIC_CLOCKEVENTS
231f4b8b319SRussell King	select PLAT_VERSATILE
2324af6fee1SDeepak Saxena	help
2334af6fee1SDeepak Saxena	  Support for ARM's Integrator platform.
2344af6fee1SDeepak Saxena
2354af6fee1SDeepak Saxenaconfig ARCH_REALVIEW
2364af6fee1SDeepak Saxena	bool "ARM Ltd. RealView family"
2374af6fee1SDeepak Saxena	select ARM_AMBA
238cf30fb4aSRussell King	select COMMON_CLKDEV
239c5a0adb5SRussell King	select ICST
240ae30ceacSCatalin Marinas	select GENERIC_CLOCKEVENTS
241eb7fffa3SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
242f4b8b319SRussell King	select PLAT_VERSATILE
243e3887714SRussell King	select ARM_TIMER_SP804
244b56ba8aaSColin Tuckley	select GPIO_PL061 if GPIOLIB
2454af6fee1SDeepak Saxena	help
2464af6fee1SDeepak Saxena	  This enables support for ARM Ltd RealView boards.
2474af6fee1SDeepak Saxena
2484af6fee1SDeepak Saxenaconfig ARCH_VERSATILE
2494af6fee1SDeepak Saxena	bool "ARM Ltd. Versatile family"
2504af6fee1SDeepak Saxena	select ARM_AMBA
2514af6fee1SDeepak Saxena	select ARM_VIC
25271a06da0SRussell King	select COMMON_CLKDEV
253c5a0adb5SRussell King	select ICST
25489df1272SKevin Hilman	select GENERIC_CLOCKEVENTS
255bbeddc43SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
256f4b8b319SRussell King	select PLAT_VERSATILE
257e3887714SRussell King	select ARM_TIMER_SP804
2584af6fee1SDeepak Saxena	help
2594af6fee1SDeepak Saxena	  This enables support for ARM Ltd Versatile board.
2604af6fee1SDeepak Saxena
261ceade897SRussell Kingconfig ARCH_VEXPRESS
262ceade897SRussell King	bool "ARM Ltd. Versatile Express family"
263ceade897SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
264ceade897SRussell King	select ARM_AMBA
265ceade897SRussell King	select ARM_TIMER_SP804
266ceade897SRussell King	select COMMON_CLKDEV
267ceade897SRussell King	select GENERIC_CLOCKEVENTS
268ceade897SRussell King	select HAVE_CLK
269ceade897SRussell King	select ICST
270ceade897SRussell King	select PLAT_VERSATILE
271ceade897SRussell King	help
272ceade897SRussell King	  This enables support for the ARM Ltd Versatile Express boards.
273ceade897SRussell King
2748fc5ffa0SAndrew Victorconfig ARCH_AT91
2758fc5ffa0SAndrew Victor	bool "Atmel AT91"
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_CLOCKEVENTS
289ccf50e23SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
290ccf50e23SRussell King	help
291ccf50e23SRussell King	  Support for Broadcom's BCMRing platform.
292ccf50e23SRussell King
2931da177e4SLinus Torvaldsconfig ARCH_CLPS711X
2944af6fee1SDeepak Saxena	bool "Cirrus Logic CLPS711x/EP721x-based"
295c750815eSRussell King	select CPU_ARM720T
2965cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
297f999b8bdSMartin Michlmayr	help
298f999b8bdSMartin Michlmayr	  Support for Cirrus Logic 711x/721x based boards.
2991da177e4SLinus Torvalds
300d94f944eSAnton Vorontsovconfig ARCH_CNS3XXX
301d94f944eSAnton Vorontsov	bool "Cavium Networks CNS3XXX family"
302d94f944eSAnton Vorontsov	select CPU_V6
303d94f944eSAnton Vorontsov	select GENERIC_CLOCKEVENTS
304d94f944eSAnton Vorontsov	select ARM_GIC
3055f32f7a0SAnton Vorontsov	select PCI_DOMAINS if PCI
306d94f944eSAnton Vorontsov	help
307d94f944eSAnton Vorontsov	  Support for Cavium Networks CNS3XXX platform.
308d94f944eSAnton Vorontsov
309788c9700SRussell Kingconfig ARCH_GEMINI
310788c9700SRussell King	bool "Cortina Systems Gemini"
311788c9700SRussell King	select CPU_FA526
312788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
3135cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
314788c9700SRussell King	help
315788c9700SRussell King	  Support for the Cortina Systems Gemini family SoCs
316788c9700SRussell King
3171da177e4SLinus Torvaldsconfig ARCH_EBSA110
3181da177e4SLinus Torvalds	bool "EBSA-110"
319c750815eSRussell King	select CPU_SA110
320f7e68bbfSRussell King	select ISA
321c5eb2a2bSRussell King	select NO_IOPORT
3225cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
3231da177e4SLinus Torvalds	help
3241da177e4SLinus Torvalds	  This is an evaluation board for the StrongARM processor available
325f6c8965aSMartin Michlmayr	  from Digital. It has limited hardware on-board, including an
3261da177e4SLinus Torvalds	  Ethernet interface, two PCMCIA sockets, two serial ports and a
3271da177e4SLinus Torvalds	  parallel port.
3281da177e4SLinus Torvalds
329e7736d47SLennert Buytenhekconfig ARCH_EP93XX
330e7736d47SLennert Buytenhek	bool "EP93xx-based"
331c750815eSRussell King	select CPU_ARM920T
332e7736d47SLennert Buytenhek	select ARM_AMBA
333e7736d47SLennert Buytenhek	select ARM_VIC
334ae696fd5SRussell King	select COMMON_CLKDEV
3357444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
336eb33575cSMel Gorman	select ARCH_HAS_HOLES_MEMORYMODEL
3375cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
338e7736d47SLennert Buytenhek	help
339e7736d47SLennert Buytenhek	  This enables support for the Cirrus EP93xx series of CPUs.
340e7736d47SLennert Buytenhek
3411da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE
3421da177e4SLinus Torvalds	bool "FootBridge"
343c750815eSRussell King	select CPU_SA110
3441da177e4SLinus Torvalds	select FOOTBRIDGE
3455cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
346f999b8bdSMartin Michlmayr	help
347f999b8bdSMartin Michlmayr	  Support for systems based on the DC21285 companion chip
348f999b8bdSMartin Michlmayr	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
3491da177e4SLinus Torvalds
350788c9700SRussell Kingconfig ARCH_MXC
351788c9700SRussell King	bool "Freescale MXC/iMX-based"
352788c9700SRussell King	select GENERIC_CLOCKEVENTS
353788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
35403e09cd8SUwe Kleine-König	select COMMON_CLKDEV
355788c9700SRussell King	help
356788c9700SRussell King	  Support for Freescale MXC/iMX-based family of processors
357788c9700SRussell King
3587bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX
3597bd0f2f5Sdmitry pervushin	bool "Freescale STMP3xxx"
3607bd0f2f5Sdmitry pervushin	select CPU_ARM926T
3617bd0f2f5Sdmitry pervushin	select COMMON_CLKDEV
3627bd0f2f5Sdmitry pervushin	select ARCH_REQUIRE_GPIOLIB
3637bd0f2f5Sdmitry pervushin	select GENERIC_CLOCKEVENTS
3647bd0f2f5Sdmitry pervushin	select USB_ARCH_HAS_EHCI
3657bd0f2f5Sdmitry pervushin	help
3667bd0f2f5Sdmitry pervushin	  Support for systems based on the Freescale 3xxx CPUs.
3677bd0f2f5Sdmitry pervushin
3684af6fee1SDeepak Saxenaconfig ARCH_NETX
3694af6fee1SDeepak Saxena	bool "Hilscher NetX based"
370c750815eSRussell King	select CPU_ARM926T
3714af6fee1SDeepak Saxena	select ARM_VIC
3722fcfe6b8SUwe Kleine-König	select GENERIC_CLOCKEVENTS
373f999b8bdSMartin Michlmayr	help
3744af6fee1SDeepak Saxena	  This enables support for systems based on the Hilscher NetX Soc
3754af6fee1SDeepak Saxena
3764af6fee1SDeepak Saxenaconfig ARCH_H720X
3774af6fee1SDeepak Saxena	bool "Hynix HMS720x-based"
378c750815eSRussell King	select CPU_ARM720T
3794af6fee1SDeepak Saxena	select ISA_DMA_API
3805cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
3814af6fee1SDeepak Saxena	help
3824af6fee1SDeepak Saxena	  This enables support for systems based on the Hynix HMS720x
3834af6fee1SDeepak Saxena
3843b938be6SRussell Kingconfig ARCH_IOP13XX
3853b938be6SRussell King	bool "IOP13xx-based"
3863b938be6SRussell King	depends on MMU
387c750815eSRussell King	select CPU_XSC3
3883b938be6SRussell King	select PLAT_IOP
3893b938be6SRussell King	select PCI
3903b938be6SRussell King	select ARCH_SUPPORTS_MSI
3918d5796d2SLennert Buytenhek	select VMSPLIT_1G
3923b938be6SRussell King	help
3933b938be6SRussell King	  Support for Intel's IOP13XX (XScale) family of processors.
3943b938be6SRussell King
3953f7e5815SLennert Buytenhekconfig ARCH_IOP32X
3963f7e5815SLennert Buytenhek	bool "IOP32x-based"
397a4f7e763SRussell King	depends on MMU
398c750815eSRussell King	select CPU_XSCALE
3997ae1f7ecSLennert Buytenhek	select PLAT_IOP
400f7e68bbfSRussell King	select PCI
401bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
402f999b8bdSMartin Michlmayr	help
4033f7e5815SLennert Buytenhek	  Support for Intel's 80219 and IOP32X (XScale) family of
4043f7e5815SLennert Buytenhek	  processors.
4053f7e5815SLennert Buytenhek
4063f7e5815SLennert Buytenhekconfig ARCH_IOP33X
4073f7e5815SLennert Buytenhek	bool "IOP33x-based"
4083f7e5815SLennert Buytenhek	depends on MMU
409c750815eSRussell King	select CPU_XSCALE
4107ae1f7ecSLennert Buytenhek	select PLAT_IOP
4113f7e5815SLennert Buytenhek	select PCI
412bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
4133f7e5815SLennert Buytenhek	help
4143f7e5815SLennert Buytenhek	  Support for Intel's IOP33X (XScale) family of processors.
4151da177e4SLinus Torvalds
4163b938be6SRussell Kingconfig ARCH_IXP23XX
4173b938be6SRussell King 	bool "IXP23XX-based"
418588ef769SDan Williams	depends on MMU
419c750815eSRussell King	select CPU_XSC3
420285f5fa7SDan Williams 	select PCI
4215cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
422285f5fa7SDan Williams	help
4233b938be6SRussell King	  Support for Intel's IXP23xx (XScale) family of processors.
4241da177e4SLinus Torvalds
4251da177e4SLinus Torvaldsconfig ARCH_IXP2000
4261da177e4SLinus Torvalds	bool "IXP2400/2800-based"
427a4f7e763SRussell King	depends on MMU
428c750815eSRussell King	select CPU_XSCALE
429f7e68bbfSRussell King	select PCI
4305cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
431f999b8bdSMartin Michlmayr	help
432f999b8bdSMartin Michlmayr	  Support for Intel's IXP2400/2800 (XScale) family of processors.
4331da177e4SLinus Torvalds
4343b938be6SRussell Kingconfig ARCH_IXP4XX
4353b938be6SRussell King	bool "IXP4xx-based"
436a4f7e763SRussell King	depends on MMU
437c750815eSRussell King	select CPU_XSCALE
4388858e9afSMilan Svoboda	select GENERIC_GPIO
4393b938be6SRussell King	select GENERIC_CLOCKEVENTS
4405b0d495cSRussell King	select HAVE_SCHED_CLOCK
441485bdde7SRussell King	select DMABOUNCE if PCI
442c4713074SLennert Buytenhek	help
4433b938be6SRussell King	  Support for Intel's IXP4XX (XScale) family of processors.
444c4713074SLennert Buytenhek
445edabd38eSSaeed Bisharaconfig ARCH_DOVE
446edabd38eSSaeed Bishara	bool "Marvell Dove"
447edabd38eSSaeed Bishara	select PCI
448edabd38eSSaeed Bishara	select ARCH_REQUIRE_GPIOLIB
449edabd38eSSaeed Bishara	select GENERIC_CLOCKEVENTS
450edabd38eSSaeed Bishara	select PLAT_ORION
451edabd38eSSaeed Bishara	help
452edabd38eSSaeed Bishara	  Support for the Marvell Dove SoC 88AP510
453edabd38eSSaeed Bishara
454651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD
455651c74c7SSaeed Bishara	bool "Marvell Kirkwood"
456c750815eSRussell King	select CPU_FEROCEON
457651c74c7SSaeed Bishara	select PCI
458a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
459651c74c7SSaeed Bishara	select GENERIC_CLOCKEVENTS
460651c74c7SSaeed Bishara	select PLAT_ORION
461651c74c7SSaeed Bishara	help
462651c74c7SSaeed Bishara	  Support for the following Marvell Kirkwood series SoCs:
463651c74c7SSaeed Bishara	  88F6180, 88F6192 and 88F6281.
464651c74c7SSaeed Bishara
465788c9700SRussell Kingconfig ARCH_LOKI
466788c9700SRussell King	bool "Marvell Loki (88RC8480)"
467788c9700SRussell King	select CPU_FEROCEON
468788c9700SRussell King	select GENERIC_CLOCKEVENTS
469788c9700SRussell King	select PLAT_ORION
470788c9700SRussell King	help
471788c9700SRussell King	  Support for the Marvell Loki (88RC8480) SoC.
472788c9700SRussell King
47340805949SKevin Wellsconfig ARCH_LPC32XX
47440805949SKevin Wells	bool "NXP LPC32XX"
47540805949SKevin Wells	select CPU_ARM926T
47640805949SKevin Wells	select ARCH_REQUIRE_GPIOLIB
47740805949SKevin Wells	select HAVE_IDE
47840805949SKevin Wells	select ARM_AMBA
47940805949SKevin Wells	select USB_ARCH_HAS_OHCI
48040805949SKevin Wells	select COMMON_CLKDEV
48140805949SKevin Wells	select GENERIC_TIME
48240805949SKevin Wells	select GENERIC_CLOCKEVENTS
48340805949SKevin Wells	help
48440805949SKevin Wells	  Support for the NXP LPC32XX family of processors
48540805949SKevin Wells
486788c9700SRussell Kingconfig ARCH_MV78XX0
487788c9700SRussell King	bool "Marvell MV78xx0"
488788c9700SRussell King	select CPU_FEROCEON
489788c9700SRussell King	select PCI
490a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
491788c9700SRussell King	select GENERIC_CLOCKEVENTS
492788c9700SRussell King	select PLAT_ORION
493788c9700SRussell King	help
494788c9700SRussell King	  Support for the following Marvell MV78xx0 series SoCs:
495788c9700SRussell King	  MV781x0, MV782x0.
496788c9700SRussell King
497788c9700SRussell Kingconfig ARCH_ORION5X
498788c9700SRussell King	bool "Marvell Orion"
499788c9700SRussell King	depends on MMU
500788c9700SRussell King	select CPU_FEROCEON
501788c9700SRussell King	select PCI
502a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
503788c9700SRussell King	select GENERIC_CLOCKEVENTS
504788c9700SRussell King	select PLAT_ORION
505788c9700SRussell King	help
506788c9700SRussell King	  Support for the following Marvell Orion 5x series SoCs:
507788c9700SRussell King	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
508788c9700SRussell King	  Orion-2 (5281), Orion-1-90 (6183).
509788c9700SRussell King
510788c9700SRussell Kingconfig ARCH_MMP
5112f7e8faeSHaojian Zhuang	bool "Marvell PXA168/910/MMP2"
512788c9700SRussell King	depends on MMU
513788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
514788c9700SRussell King	select COMMON_CLKDEV
515788c9700SRussell King	select GENERIC_CLOCKEVENTS
51628bb7bc6SRussell King	select HAVE_SCHED_CLOCK
517788c9700SRussell King	select TICK_ONESHOT
518788c9700SRussell King	select PLAT_PXA
5190bd86961SHaojian Zhuang	select SPARSE_IRQ
520788c9700SRussell King	help
5212f7e8faeSHaojian Zhuang	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
522788c9700SRussell King
523c53c9cf6SAndrew Victorconfig ARCH_KS8695
524c53c9cf6SAndrew Victor	bool "Micrel/Kendin KS8695"
525c750815eSRussell King	select CPU_ARM922T
52672880ad8SDaniel Silverstone	select ARCH_REQUIRE_GPIOLIB
5275cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
528c53c9cf6SAndrew Victor	help
529c53c9cf6SAndrew Victor	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
530c53c9cf6SAndrew Victor	  System-on-Chip devices.
531c53c9cf6SAndrew Victor
5329918cda5SUwe Kleine-Königconfig ARCH_NS9XXX
5339918cda5SUwe Kleine-König	bool "NetSilicon NS9xxx"
534c750815eSRussell King	select CPU_ARM926T
535689f2a01SUwe Kleine-König	select GENERIC_GPIO
536c0bb87f7SUwe Kleine-König	select GENERIC_CLOCKEVENTS
5379483a578SDavid Brownell	select HAVE_CLK
5389918cda5SUwe Kleine-König	help
5399918cda5SUwe Kleine-König	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
5409918cda5SUwe Kleine-König	  System.
5419918cda5SUwe Kleine-König
5429918cda5SUwe Kleine-König	  <http://www.digi.com/products/microprocessors/index.jsp>
5439918cda5SUwe Kleine-König
544788c9700SRussell Kingconfig ARCH_W90X900
545788c9700SRussell King	bool "Nuvoton W90X900 CPU"
546788c9700SRussell King	select CPU_ARM926T
547c52d3d68Swanzongshun	select ARCH_REQUIRE_GPIOLIB
5480e4a34bbSwanzongshun	select COMMON_CLKDEV
54958b5369eSwanzongshun	select GENERIC_CLOCKEVENTS
550777f9bebSLennert Buytenhek	help
551a8bc4eadSwanzongshun	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
552a8bc4eadSwanzongshun	  At present, the w90x900 has been renamed nuc900, regarding
553a8bc4eadSwanzongshun	  the ARM series product line, you can login the following
554a8bc4eadSwanzongshun	  link address to know more.
555a8bc4eadSwanzongshun
556a8bc4eadSwanzongshun	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
557a8bc4eadSwanzongshun		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
558585cf175STzachi Perelstein
559a62e9030Swanzongshunconfig ARCH_NUC93X
560a62e9030Swanzongshun	bool "Nuvoton NUC93X CPU"
561a62e9030Swanzongshun	select CPU_ARM926T
562a62e9030Swanzongshun	select COMMON_CLKDEV
563a62e9030Swanzongshun	help
564a62e9030Swanzongshun	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
565a62e9030Swanzongshun	  low-power and high performance MPEG-4/JPEG multimedia controller chip.
566a62e9030Swanzongshun
567c5f80065SErik Gillingconfig ARCH_TEGRA
568c5f80065SErik Gilling	bool "NVIDIA Tegra"
569c5f80065SErik Gilling	select GENERIC_TIME
570c5f80065SErik Gilling	select GENERIC_CLOCKEVENTS
571c5f80065SErik Gilling	select GENERIC_GPIO
572c5f80065SErik Gilling	select HAVE_CLK
573*e3f4c0abSRussell King	select HAVE_SCHED_CLOCK
574d8611961SColin Cross	select COMMON_CLKDEV
575c5f80065SErik Gilling	select ARCH_HAS_BARRIERS if CACHE_L2X0
5767056d423SColin Cross	select ARCH_HAS_CPUFREQ
577c5f80065SErik Gilling	help
578c5f80065SErik Gilling	  This enables support for NVIDIA Tegra based systems (Tegra APX,
579c5f80065SErik Gilling	  Tegra 6xx and Tegra 2 series).
580c5f80065SErik Gilling
5814af6fee1SDeepak Saxenaconfig ARCH_PNX4008
5824af6fee1SDeepak Saxena	bool "Philips Nexperia PNX4008 Mobile"
583c750815eSRussell King	select CPU_ARM926T
5846985a5adSRussell King	select COMMON_CLKDEV
5855cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
5864af6fee1SDeepak Saxena	help
5874af6fee1SDeepak Saxena	  This enables support for Philips PNX4008 mobile platform.
5884af6fee1SDeepak Saxena
5891da177e4SLinus Torvaldsconfig ARCH_PXA
5902c8086a5Seric miao	bool "PXA2xx/PXA3xx-based"
591a4f7e763SRussell King	depends on MMU
592034d2f5aSAl Viro	select ARCH_MTD_XIP
59389c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
5948c3abc7dSRussell King	select COMMON_CLKDEV
5957444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
596981d0f39SEric Miao	select GENERIC_CLOCKEVENTS
5977ce83018SRussell King	select HAVE_SCHED_CLOCK
598a88264c2SRussell King	select TICK_ONESHOT
599bd5ce433SEric Miao	select PLAT_PXA
6006ac6b817SHaojian Zhuang	select SPARSE_IRQ
601f999b8bdSMartin Michlmayr	help
6022c8086a5Seric miao	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
6031da177e4SLinus Torvalds
604788c9700SRussell Kingconfig ARCH_MSM
605788c9700SRussell King	bool "Qualcomm MSM"
6064b536b8dSSteve Muckle	select HAVE_CLK
60749cbe786SEric Miao	select GENERIC_CLOCKEVENTS
608923a081cSPavel Machek	select ARCH_REQUIRE_GPIOLIB
60949cbe786SEric Miao	help
6104b53eb4fSDaniel Walker	  Support for Qualcomm MSM/QSD based systems.  This runs on the
6114b53eb4fSDaniel Walker	  apps processor of the MSM/QSD and depends on a shared memory
6124b53eb4fSDaniel Walker	  interface to the modem processor which runs the baseband
6134b53eb4fSDaniel Walker	  stack and controls some vital subsystems
6144b53eb4fSDaniel Walker	  (clock and power control, etc).
61549cbe786SEric Miao
616c793c1b0SMagnus Dammconfig ARCH_SHMOBILE
617c793c1b0SMagnus Damm	bool "Renesas SH-Mobile"
618c793c1b0SMagnus Damm	help
619c793c1b0SMagnus Damm	  Support for Renesas's SH-Mobile ARM platforms
620c793c1b0SMagnus Damm
6211da177e4SLinus Torvaldsconfig ARCH_RPC
6221da177e4SLinus Torvalds	bool "RiscPC"
6231da177e4SLinus Torvalds	select ARCH_ACORN
6241da177e4SLinus Torvalds	select FIQ
6251da177e4SLinus Torvalds	select TIMER_ACORN
626a08b6b79Sviro@ZenIV.linux.org.uk	select ARCH_MAY_HAVE_PC_FDC
627341eb781SBen Dooks	select HAVE_PATA_PLATFORM
628065909b9SRussell King	select ISA_DMA_API
6295ea81769SAl Viro	select NO_IOPORT
63007f841b7SRussell King	select ARCH_SPARSEMEM_ENABLE
6315cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
6321da177e4SLinus Torvalds	help
6331da177e4SLinus Torvalds	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
6341da177e4SLinus Torvalds	  CD-ROM interface, serial and parallel port, and the floppy drive.
6351da177e4SLinus Torvalds
6361da177e4SLinus Torvaldsconfig ARCH_SA1100
6371da177e4SLinus Torvalds	bool "SA1100-based"
638c750815eSRussell King	select CPU_SA1100
639f7e68bbfSRussell King	select ISA
64005944d74SRussell King	select ARCH_SPARSEMEM_ENABLE
641034d2f5aSAl Viro	select ARCH_MTD_XIP
64289c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
6431937f5b9SRussell King	select CPU_FREQ
6443e238be2SRussell King	select GENERIC_CLOCKEVENTS
6459483a578SDavid Brownell	select HAVE_CLK
6465094b92fSRussell King	select HAVE_SCHED_CLOCK
6473e238be2SRussell King	select TICK_ONESHOT
6487444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
649f999b8bdSMartin Michlmayr	help
650f999b8bdSMartin Michlmayr	  Support for StrongARM 11x0 based boards.
6511da177e4SLinus Torvalds
6521da177e4SLinus Torvaldsconfig ARCH_S3C2410
65363b1f51bSBen Dooks	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
6540a938b97SDavid Brownell	select GENERIC_GPIO
6559d56c02aSBen Dooks	select ARCH_HAS_CPUFREQ
6569483a578SDavid Brownell	select HAVE_CLK
6575cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
65820676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
6591da177e4SLinus Torvalds	help
6601da177e4SLinus Torvalds	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
6611da177e4SLinus Torvalds	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
662f6c8965aSMartin Michlmayr	  the Samsung SMDK2410 development board (and derivatives).
6631da177e4SLinus Torvalds
66463b1f51bSBen Dooks	  Note, the S3C2416 and the S3C2450 are so close that they even share
66563b1f51bSBen Dooks	  the same SoC ID code. This means that there is no seperate machine
66663b1f51bSBen Dooks	  directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
66763b1f51bSBen Dooks
668a08ab637SBen Dooksconfig ARCH_S3C64XX
669a08ab637SBen Dooks	bool "Samsung S3C64XX"
67089f1fa08SBen Dooks	select PLAT_SAMSUNG
67189f0ce72SBen Dooks	select CPU_V6
67289f0ce72SBen Dooks	select ARM_VIC
673a08ab637SBen Dooks	select HAVE_CLK
67489f0ce72SBen Dooks	select NO_IOPORT
6755cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
67689c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
67789f0ce72SBen Dooks	select ARCH_REQUIRE_GPIOLIB
67889f0ce72SBen Dooks	select SAMSUNG_CLKSRC
67989f0ce72SBen Dooks	select SAMSUNG_IRQ_VIC_TIMER
68089f0ce72SBen Dooks	select SAMSUNG_IRQ_UART
68189f0ce72SBen Dooks	select S3C_GPIO_TRACK
68289f0ce72SBen Dooks	select S3C_GPIO_PULL_UPDOWN
68389f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C24XX
68489f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C64XX
68589f0ce72SBen Dooks	select S3C_DEV_NAND
68689f0ce72SBen Dooks	select USB_ARCH_HAS_OHCI
68789f0ce72SBen Dooks	select SAMSUNG_GPIOLIB_4BIT
68820676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
689c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
690a08ab637SBen Dooks	help
691a08ab637SBen Dooks	  Samsung S3C64XX series based systems
692a08ab637SBen Dooks
69349b7a491SKukjin Kimconfig ARCH_S5P64X0
69449b7a491SKukjin Kim	bool "Samsung S5P6440 S5P6450"
695c4ffccddSKukjin Kim	select CPU_V6
696c4ffccddSKukjin Kim	select GENERIC_GPIO
697c4ffccddSKukjin Kim	select HAVE_CLK
698c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
699925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
70020676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
701754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
702c4ffccddSKukjin Kim	help
70349b7a491SKukjin Kim	  Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
70449b7a491SKukjin Kim	  SMDK6450.
705c4ffccddSKukjin Kim
706550db7f1SKukjin Kimconfig ARCH_S5P6442
707550db7f1SKukjin Kim	bool "Samsung S5P6442"
708550db7f1SKukjin Kim	select CPU_V6
709550db7f1SKukjin Kim	select GENERIC_GPIO
710550db7f1SKukjin Kim	select HAVE_CLK
711925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
712c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
713550db7f1SKukjin Kim	help
714550db7f1SKukjin Kim	  Samsung S5P6442 CPU based systems
715550db7f1SKukjin Kim
716acc84707SMarek Szyprowskiconfig ARCH_S5PC100
717acc84707SMarek Szyprowski	bool "Samsung S5PC100"
7185a7652f2SByungho Min	select GENERIC_GPIO
7195a7652f2SByungho Min	select HAVE_CLK
7205a7652f2SByungho Min	select CPU_V7
721d6d502faSKukjin Kim	select ARM_L1_CACHE_SHIFT_6
722925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
72320676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
724754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
725c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
7265a7652f2SByungho Min	help
727acc84707SMarek Szyprowski	  Samsung S5PC100 series based systems
7285a7652f2SByungho Min
729170f4e42SKukjin Kimconfig ARCH_S5PV210
730170f4e42SKukjin Kim	bool "Samsung S5PV210/S5PC110"
731170f4e42SKukjin Kim	select CPU_V7
732eecb6a84SKyungmin Park	select ARCH_SPARSEMEM_ENABLE
733170f4e42SKukjin Kim	select GENERIC_GPIO
734170f4e42SKukjin Kim	select HAVE_CLK
735170f4e42SKukjin Kim	select ARM_L1_CACHE_SHIFT_6
736d8144aeaSJaecheol Lee	select ARCH_HAS_CPUFREQ
737925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
73820676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
739754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
740c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
741170f4e42SKukjin Kim	help
742170f4e42SKukjin Kim	  Samsung S5PV210/S5PC110 series based systems
743170f4e42SKukjin Kim
744cc0e72b8SChanghwan Younconfig ARCH_S5PV310
745cc0e72b8SChanghwan Youn	bool "Samsung S5PV310/S5PC210"
746cc0e72b8SChanghwan Youn	select CPU_V7
747f567fa6fSKyungmin Park	select ARCH_SPARSEMEM_ENABLE
748cc0e72b8SChanghwan Youn	select GENERIC_GPIO
749cc0e72b8SChanghwan Youn	select HAVE_CLK
750cc0e72b8SChanghwan Youn	select GENERIC_CLOCKEVENTS
751754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
75220676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
753c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
754cc0e72b8SChanghwan Youn	help
755cc0e72b8SChanghwan Youn	  Samsung S5PV310 series based systems
756cc0e72b8SChanghwan Youn
7571da177e4SLinus Torvaldsconfig ARCH_SHARK
7581da177e4SLinus Torvalds	bool "Shark"
759c750815eSRussell King	select CPU_SA110
760f7e68bbfSRussell King	select ISA
761f7e68bbfSRussell King	select ISA_DMA
7623bca103aSNicolas Pitre	select ZONE_DMA
763f7e68bbfSRussell King	select PCI
7645cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
765f999b8bdSMartin Michlmayr	help
766f999b8bdSMartin Michlmayr	  Support for the StrongARM based Digital DNARD machine, also known
767f999b8bdSMartin Michlmayr	  as "Shark" (<http://www.shark-linux.de/shark.html>).
7681da177e4SLinus Torvalds
76983ef3338SHans J. Kochconfig ARCH_TCC_926
77083ef3338SHans J. Koch	bool "Telechips TCC ARM926-based systems"
77183ef3338SHans J. Koch	select CPU_ARM926T
77283ef3338SHans J. Koch	select HAVE_CLK
77383ef3338SHans J. Koch	select COMMON_CLKDEV
77483ef3338SHans J. Koch	select GENERIC_CLOCKEVENTS
77583ef3338SHans J. Koch	help
77683ef3338SHans J. Koch	  Support for Telechips TCC ARM926-based systems.
77783ef3338SHans J. Koch
7781da177e4SLinus Torvaldsconfig ARCH_LH7A40X
7791da177e4SLinus Torvalds	bool "Sharp LH7A40X"
780c750815eSRussell King	select CPU_ARM922T
7814ba3f7c5SRussell King	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
7825cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
7831da177e4SLinus Torvalds	help
7841da177e4SLinus Torvalds	  Say Y here for systems based on one of the Sharp LH7A40X
7851da177e4SLinus Torvalds	  System on a Chip processors.  These CPUs include an ARM922T
7861da177e4SLinus Torvalds	  core with a wide array of integrated devices for
7871da177e4SLinus Torvalds	  hand-held and low-power applications.
7881da177e4SLinus Torvalds
789d98aac75SLinus Walleijconfig ARCH_U300
790d98aac75SLinus Walleij	bool "ST-Ericsson U300 Series"
791d98aac75SLinus Walleij	depends on MMU
792d98aac75SLinus Walleij	select CPU_ARM926T
793bc581770SLinus Walleij	select HAVE_TCM
794d98aac75SLinus Walleij	select ARM_AMBA
795d98aac75SLinus Walleij	select ARM_VIC
796d98aac75SLinus Walleij	select GENERIC_CLOCKEVENTS
797d98aac75SLinus Walleij	select COMMON_CLKDEV
798d98aac75SLinus Walleij	select GENERIC_GPIO
799d98aac75SLinus Walleij	help
800d98aac75SLinus Walleij	  Support for ST-Ericsson U300 series mobile platforms.
801d98aac75SLinus Walleij
802ccf50e23SRussell Kingconfig ARCH_U8500
803ccf50e23SRussell King	bool "ST-Ericsson U8500 Series"
804ccf50e23SRussell King	select CPU_V7
805ccf50e23SRussell King	select ARM_AMBA
806ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
807ccf50e23SRussell King	select COMMON_CLKDEV
80894bdc0e2SRabin Vincent	select ARCH_REQUIRE_GPIOLIB
809ccf50e23SRussell King	help
810ccf50e23SRussell King	  Support for ST-Ericsson's Ux500 architecture
811ccf50e23SRussell King
812ccf50e23SRussell Kingconfig ARCH_NOMADIK
813ccf50e23SRussell King	bool "STMicroelectronics Nomadik"
814ccf50e23SRussell King	select ARM_AMBA
815ccf50e23SRussell King	select ARM_VIC
816ccf50e23SRussell King	select CPU_ARM926T
817ccf50e23SRussell King	select COMMON_CLKDEV
818ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
819ccf50e23SRussell King	select ARCH_REQUIRE_GPIOLIB
820ccf50e23SRussell King	help
821ccf50e23SRussell King	  Support for the Nomadik platform by ST-Ericsson
822ccf50e23SRussell King
8237c6337e2SKevin Hilmanconfig ARCH_DAVINCI
8247c6337e2SKevin Hilman	bool "TI DaVinci"
8257c6337e2SKevin Hilman	select GENERIC_CLOCKEVENTS
826dce1115bSDavid Brownell	select ARCH_REQUIRE_GPIOLIB
8273bca103aSNicolas Pitre	select ZONE_DMA
8289232fcc9SKevin Hilman	select HAVE_IDE
829c5b736d0SKevin Hilman	select COMMON_CLKDEV
83020e9969bSDavid Brownell	select GENERIC_ALLOCATOR
831ae88e05aSSekhar Nori	select ARCH_HAS_HOLES_MEMORYMODEL
8327c6337e2SKevin Hilman	help
8337c6337e2SKevin Hilman	  Support for TI's DaVinci platform.
8347c6337e2SKevin Hilman
8353b938be6SRussell Kingconfig ARCH_OMAP
8363b938be6SRussell King	bool "TI OMAP"
8379483a578SDavid Brownell	select HAVE_CLK
8387444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
83989c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
84006cad098SKevin Hilman	select GENERIC_CLOCKEVENTS
8419af915daSSriram	select ARCH_HAS_HOLES_MEMORYMODEL
8423b938be6SRussell King	help
8436e457bb0SLennert Buytenhek	  Support for TI's OMAP platform (OMAP1/2/3/4).
8443b938be6SRussell King
845cee37e50Sviresh kumarconfig PLAT_SPEAR
846cee37e50Sviresh kumar	bool "ST SPEAr"
847cee37e50Sviresh kumar	select ARM_AMBA
848cee37e50Sviresh kumar	select ARCH_REQUIRE_GPIOLIB
849cee37e50Sviresh kumar	select COMMON_CLKDEV
850cee37e50Sviresh kumar	select GENERIC_CLOCKEVENTS
851cee37e50Sviresh kumar	select HAVE_CLK
852cee37e50Sviresh kumar	help
853cee37e50Sviresh kumar	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
854cee37e50Sviresh kumar
8551da177e4SLinus Torvaldsendchoice
8561da177e4SLinus Torvalds
857ccf50e23SRussell King#
858ccf50e23SRussell King# This is sorted alphabetically by mach-* pathname.  However, plat-*
859ccf50e23SRussell King# Kconfigs may be included either alphabetically (according to the
860ccf50e23SRussell King# plat- suffix) or along side the corresponding mach-* source.
861ccf50e23SRussell King#
86295b8f20fSRussell Kingsource "arch/arm/mach-aaec2000/Kconfig"
86395b8f20fSRussell King
86495b8f20fSRussell Kingsource "arch/arm/mach-at91/Kconfig"
86595b8f20fSRussell King
86695b8f20fSRussell Kingsource "arch/arm/mach-bcmring/Kconfig"
86795b8f20fSRussell King
8681da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig"
8691da177e4SLinus Torvalds
870d94f944eSAnton Vorontsovsource "arch/arm/mach-cns3xxx/Kconfig"
871d94f944eSAnton Vorontsov
87295b8f20fSRussell Kingsource "arch/arm/mach-davinci/Kconfig"
87395b8f20fSRussell King
87495b8f20fSRussell Kingsource "arch/arm/mach-dove/Kconfig"
87595b8f20fSRussell King
876e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig"
877e7736d47SLennert Buytenhek
8781da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig"
8791da177e4SLinus Torvalds
88059d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig"
88159d3a193SPaulius Zaleckas
88295b8f20fSRussell Kingsource "arch/arm/mach-h720x/Kconfig"
88395b8f20fSRussell King
8841da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig"
8851da177e4SLinus Torvalds
8863f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig"
8873f7e5815SLennert Buytenhek
8883f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig"
8891da177e4SLinus Torvalds
890285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig"
891285f5fa7SDan Williams
8921da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig"
8931da177e4SLinus Torvalds
8941da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig"
8951da177e4SLinus Torvalds
896c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig"
897c4713074SLennert Buytenhek
89895b8f20fSRussell Kingsource "arch/arm/mach-kirkwood/Kconfig"
89995b8f20fSRussell King
90095b8f20fSRussell Kingsource "arch/arm/mach-ks8695/Kconfig"
90195b8f20fSRussell King
90295b8f20fSRussell Kingsource "arch/arm/mach-lh7a40x/Kconfig"
90395b8f20fSRussell King
904777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig"
905777f9bebSLennert Buytenhek
90640805949SKevin Wellssource "arch/arm/mach-lpc32xx/Kconfig"
90740805949SKevin Wells
90895b8f20fSRussell Kingsource "arch/arm/mach-msm/Kconfig"
90995b8f20fSRussell King
910794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig"
911794d15b2SStanislav Samsonov
91295b8f20fSRussell Kingsource "arch/arm/plat-mxc/Kconfig"
9131da177e4SLinus Torvalds
91495b8f20fSRussell Kingsource "arch/arm/mach-netx/Kconfig"
91549cbe786SEric Miao
91695b8f20fSRussell Kingsource "arch/arm/mach-nomadik/Kconfig"
91795b8f20fSRussell Kingsource "arch/arm/plat-nomadik/Kconfig"
91895b8f20fSRussell King
91995b8f20fSRussell Kingsource "arch/arm/mach-ns9xxx/Kconfig"
9201da177e4SLinus Torvalds
921d91a8910SRussell Kingsource "arch/arm/mach-nuc93x/Kconfig"
922d91a8910SRussell King
923d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig"
924d48af15eSTony Lindgren
925d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig"
9261da177e4SLinus Torvalds
9271dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig"
9281dbae815STony Lindgren
9299dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig"
930585cf175STzachi Perelstein
93195b8f20fSRussell Kingsource "arch/arm/mach-pxa/Kconfig"
93295b8f20fSRussell Kingsource "arch/arm/plat-pxa/Kconfig"
9331da177e4SLinus Torvalds
93495b8f20fSRussell Kingsource "arch/arm/mach-mmp/Kconfig"
93595b8f20fSRussell King
93695b8f20fSRussell Kingsource "arch/arm/mach-realview/Kconfig"
93795b8f20fSRussell King
93895b8f20fSRussell Kingsource "arch/arm/mach-sa1100/Kconfig"
939edabd38eSSaeed Bishara
940cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig"
941a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig"
942c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig"
943a21765a7SBen Dooks
944cee37e50Sviresh kumarsource "arch/arm/plat-spear/Kconfig"
945a21765a7SBen Dooks
94683ef3338SHans J. Kochsource "arch/arm/plat-tcc/Kconfig"
94783ef3338SHans J. Koch
948a21765a7SBen Dooksif ARCH_S3C2410
949a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig"
9501da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig"
951a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig"
952f1290a49SYauhen Kharuzhysource "arch/arm/mach-s3c2416/Kconfig"
953a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig"
954e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig"
955a21765a7SBen Dooksendif
9561da177e4SLinus Torvalds
957a08ab637SBen Dooksif ARCH_S3C64XX
958431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig"
959a08ab637SBen Dooksendif
960a08ab637SBen Dooks
96149b7a491SKukjin Kimsource "arch/arm/mach-s5p64x0/Kconfig"
962c4ffccddSKukjin Kim
963550db7f1SKukjin Kimsource "arch/arm/mach-s5p6442/Kconfig"
9647bd0f2f5Sdmitry pervushin
9655a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig"
9665a7652f2SByungho Min
967170f4e42SKukjin Kimsource "arch/arm/mach-s5pv210/Kconfig"
968170f4e42SKukjin Kim
969cc0e72b8SChanghwan Younsource "arch/arm/mach-s5pv310/Kconfig"
970cc0e72b8SChanghwan Youn
971882d01f9SRussell Kingsource "arch/arm/mach-shmobile/Kconfig"
9721da177e4SLinus Torvalds
973882d01f9SRussell Kingsource "arch/arm/plat-stmp3xxx/Kconfig"
9749e73c84cSBrian Swetland
975c5f80065SErik Gillingsource "arch/arm/mach-tegra/Kconfig"
976c5f80065SErik Gilling
97795b8f20fSRussell Kingsource "arch/arm/mach-u300/Kconfig"
97852c543f9SQuinn Jensen
97995b8f20fSRussell Kingsource "arch/arm/mach-ux500/Kconfig"
9801da177e4SLinus Torvalds
9811da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig"
9821da177e4SLinus Torvalds
983ceade897SRussell Kingsource "arch/arm/mach-vexpress/Kconfig"
984ceade897SRussell King
9857ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig"
9867ec80ddfSwanzongshun
9871da177e4SLinus Torvalds# Definitions to make life easier
9881da177e4SLinus Torvaldsconfig ARCH_ACORN
9891da177e4SLinus Torvalds	bool
9901da177e4SLinus Torvalds
9917ae1f7ecSLennert Buytenhekconfig PLAT_IOP
9927ae1f7ecSLennert Buytenhek	bool
993469d3044SMikael Pettersson	select GENERIC_CLOCKEVENTS
9947ae1f7ecSLennert Buytenhek
99569b02f6aSLennert Buytenhekconfig PLAT_ORION
99669b02f6aSLennert Buytenhek	bool
99769b02f6aSLennert Buytenhek
998bd5ce433SEric Miaoconfig PLAT_PXA
999bd5ce433SEric Miao	bool
1000bd5ce433SEric Miao
1001f4b8b319SRussell Kingconfig PLAT_VERSATILE
1002f4b8b319SRussell King	bool
1003f4b8b319SRussell King
1004e3887714SRussell Kingconfig ARM_TIMER_SP804
1005e3887714SRussell King	bool
1006e3887714SRussell King
10071da177e4SLinus Torvaldssource arch/arm/mm/Kconfig
10081da177e4SLinus Torvalds
1009afe4b25eSLennert Buytenhekconfig IWMMXT
1010afe4b25eSLennert Buytenhek	bool "Enable iWMMXt support"
101140305a58SEric Miao	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
101240305a58SEric Miao	default y if PXA27x || PXA3xx || ARCH_MMP
1013afe4b25eSLennert Buytenhek	help
1014afe4b25eSLennert Buytenhek	  Enable support for iWMMXt context switching at run time if
1015afe4b25eSLennert Buytenhek	  running on a CPU that supports it.
1016afe4b25eSLennert Buytenhek
10171da177e4SLinus Torvalds#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
10181da177e4SLinus Torvaldsconfig XSCALE_PMU
10191da177e4SLinus Torvalds	bool
10201da177e4SLinus Torvalds	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
10211da177e4SLinus Torvalds	default y
10221da177e4SLinus Torvalds
10230f4f0672SJamie Ilesconfig CPU_HAS_PMU
10248954bb0dSWill Deacon	depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
10258954bb0dSWill Deacon		   (!ARCH_OMAP3 || OMAP3_EMU)
10260f4f0672SJamie Iles	default y
10270f4f0672SJamie Iles	bool
10280f4f0672SJamie Iles
10293b93e7b0SHyok S. Choiif !MMU
10303b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu"
10313b93e7b0SHyok S. Choiendif
10323b93e7b0SHyok S. Choi
10339cba3cccSCatalin Marinasconfig ARM_ERRATA_411920
10349cba3cccSCatalin Marinas	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
103581d11955STony Lindgren	depends on CPU_V6
10369cba3cccSCatalin Marinas	help
10379cba3cccSCatalin Marinas	  Invalidation of the Instruction Cache operation can
10389cba3cccSCatalin Marinas	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
10399cba3cccSCatalin Marinas	  It does not affect the MPCore. This option enables the ARM Ltd.
10409cba3cccSCatalin Marinas	  recommended workaround.
10419cba3cccSCatalin Marinas
10427ce236fcSCatalin Marinasconfig ARM_ERRATA_430973
10437ce236fcSCatalin Marinas	bool "ARM errata: Stale prediction on replaced interworking branch"
10447ce236fcSCatalin Marinas	depends on CPU_V7
10457ce236fcSCatalin Marinas	help
10467ce236fcSCatalin Marinas	  This option enables the workaround for the 430973 Cortex-A8
10477ce236fcSCatalin Marinas	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
10487ce236fcSCatalin Marinas	  interworking branch is replaced with another code sequence at the
10497ce236fcSCatalin Marinas	  same virtual address, whether due to self-modifying code or virtual
10507ce236fcSCatalin Marinas	  to physical address re-mapping, Cortex-A8 does not recover from the
10517ce236fcSCatalin Marinas	  stale interworking branch prediction. This results in Cortex-A8
10527ce236fcSCatalin Marinas	  executing the new code sequence in the incorrect ARM or Thumb state.
10537ce236fcSCatalin Marinas	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
10547ce236fcSCatalin Marinas	  and also flushes the branch target cache at every context switch.
10557ce236fcSCatalin Marinas	  Note that setting specific bits in the ACTLR register may not be
10567ce236fcSCatalin Marinas	  available in non-secure mode.
10577ce236fcSCatalin Marinas
1058855c551fSCatalin Marinasconfig ARM_ERRATA_458693
1059855c551fSCatalin Marinas	bool "ARM errata: Processor deadlock when a false hazard is created"
1060855c551fSCatalin Marinas	depends on CPU_V7
1061855c551fSCatalin Marinas	help
1062855c551fSCatalin Marinas	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1063855c551fSCatalin Marinas	  erratum. For very specific sequences of memory operations, it is
1064855c551fSCatalin Marinas	  possible for a hazard condition intended for a cache line to instead
1065855c551fSCatalin Marinas	  be incorrectly associated with a different cache line. This false
1066855c551fSCatalin Marinas	  hazard might then cause a processor deadlock. The workaround enables
1067855c551fSCatalin Marinas	  the L1 caching of the NEON accesses and disables the PLD instruction
1068855c551fSCatalin Marinas	  in the ACTLR register. Note that setting specific bits in the ACTLR
1069855c551fSCatalin Marinas	  register may not be available in non-secure mode.
1070855c551fSCatalin Marinas
10710516e464SCatalin Marinasconfig ARM_ERRATA_460075
10720516e464SCatalin Marinas	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
10730516e464SCatalin Marinas	depends on CPU_V7
10740516e464SCatalin Marinas	help
10750516e464SCatalin Marinas	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
10760516e464SCatalin Marinas	  erratum. Any asynchronous access to the L2 cache may encounter a
10770516e464SCatalin Marinas	  situation in which recent store transactions to the L2 cache are lost
10780516e464SCatalin Marinas	  and overwritten with stale memory contents from external memory. The
10790516e464SCatalin Marinas	  workaround disables the write-allocate mode for the L2 cache via the
10800516e464SCatalin Marinas	  ACTLR register. Note that setting specific bits in the ACTLR register
10810516e464SCatalin Marinas	  may not be available in non-secure mode.
10820516e464SCatalin Marinas
10839f05027cSWill Deaconconfig ARM_ERRATA_742230
10849f05027cSWill Deacon	bool "ARM errata: DMB operation may be faulty"
10859f05027cSWill Deacon	depends on CPU_V7 && SMP
10869f05027cSWill Deacon	help
10879f05027cSWill Deacon	  This option enables the workaround for the 742230 Cortex-A9
10889f05027cSWill Deacon	  (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
10899f05027cSWill Deacon	  between two write operations may not ensure the correct visibility
10909f05027cSWill Deacon	  ordering of the two writes. This workaround sets a specific bit in
10919f05027cSWill Deacon	  the diagnostic register of the Cortex-A9 which causes the DMB
10929f05027cSWill Deacon	  instruction to behave as a DSB, ensuring the correct behaviour of
10939f05027cSWill Deacon	  the two writes.
10949f05027cSWill Deacon
1095a672e99bSWill Deaconconfig ARM_ERRATA_742231
1096a672e99bSWill Deacon	bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1097a672e99bSWill Deacon	depends on CPU_V7 && SMP
1098a672e99bSWill Deacon	help
1099a672e99bSWill Deacon	  This option enables the workaround for the 742231 Cortex-A9
1100a672e99bSWill Deacon	  (r2p0..r2p2) erratum. Under certain conditions, specific to the
1101a672e99bSWill Deacon	  Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1102a672e99bSWill Deacon	  accessing some data located in the same cache line, may get corrupted
1103a672e99bSWill Deacon	  data due to bad handling of the address hazard when the line gets
1104a672e99bSWill Deacon	  replaced from one of the CPUs at the same time as another CPU is
1105a672e99bSWill Deacon	  accessing it. This workaround sets specific bits in the diagnostic
1106a672e99bSWill Deacon	  register of the Cortex-A9 which reduces the linefill issuing
1107a672e99bSWill Deacon	  capabilities of the processor.
1108a672e99bSWill Deacon
11099e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369
11109e65582aSSantosh Shilimkar	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
11119e65582aSSantosh Shilimkar	depends on CACHE_L2X0 && ARCH_OMAP4
11129e65582aSSantosh Shilimkar	help
11139e65582aSSantosh Shilimkar	   The PL310 L2 cache controller implements three types of Clean &
11149e65582aSSantosh Shilimkar	   Invalidate maintenance operations: by Physical Address
11159e65582aSSantosh Shilimkar	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
11169e65582aSSantosh Shilimkar	   They are architecturally defined to behave as the execution of a
11179e65582aSSantosh Shilimkar	   clean operation followed immediately by an invalidate operation,
11189e65582aSSantosh Shilimkar	   both performing to the same memory location. This functionality
11199e65582aSSantosh Shilimkar	   is not correctly implemented in PL310 as clean lines are not
11209e65582aSSantosh Shilimkar	   invalidated as a result of these operations. Note that this errata
11219e65582aSSantosh Shilimkar	   uses Texas Instrument's secure monitor api.
1122cdf357f1SWill Deacon
1123cdf357f1SWill Deaconconfig ARM_ERRATA_720789
1124cdf357f1SWill Deacon	bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1125cdf357f1SWill Deacon	depends on CPU_V7 && SMP
1126cdf357f1SWill Deacon	help
1127cdf357f1SWill Deacon	  This option enables the workaround for the 720789 Cortex-A9 (prior to
1128cdf357f1SWill Deacon	  r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1129cdf357f1SWill Deacon	  broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1130cdf357f1SWill Deacon	  As a consequence of this erratum, some TLB entries which should be
1131cdf357f1SWill Deacon	  invalidated are not, resulting in an incoherency in the system page
1132cdf357f1SWill Deacon	  tables. The workaround changes the TLB flushing routines to invalidate
1133cdf357f1SWill Deacon	  entries regardless of the ASID.
1134475d92fcSWill Deacon
1135475d92fcSWill Deaconconfig ARM_ERRATA_743622
1136475d92fcSWill Deacon	bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1137475d92fcSWill Deacon	depends on CPU_V7
1138475d92fcSWill Deacon	help
1139475d92fcSWill Deacon	  This option enables the workaround for the 743622 Cortex-A9
1140475d92fcSWill Deacon	  (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1141475d92fcSWill Deacon	  optimisation in the Cortex-A9 Store Buffer may lead to data
1142475d92fcSWill Deacon	  corruption. This workaround sets a specific bit in the diagnostic
1143475d92fcSWill Deacon	  register of the Cortex-A9 which disables the Store Buffer
1144475d92fcSWill Deacon	  optimisation, preventing the defect from occurring. This has no
1145475d92fcSWill Deacon	  visible impact on the overall performance or power consumption of the
1146475d92fcSWill Deacon	  processor.
1147475d92fcSWill Deacon
11481da177e4SLinus Torvaldsendmenu
11491da177e4SLinus Torvalds
11501da177e4SLinus Torvaldssource "arch/arm/common/Kconfig"
11511da177e4SLinus Torvalds
11521da177e4SLinus Torvaldsmenu "Bus support"
11531da177e4SLinus Torvalds
11541da177e4SLinus Torvaldsconfig ARM_AMBA
11551da177e4SLinus Torvalds	bool
11561da177e4SLinus Torvalds
11571da177e4SLinus Torvaldsconfig ISA
11581da177e4SLinus Torvalds	bool
11591da177e4SLinus Torvalds	help
11601da177e4SLinus Torvalds	  Find out whether you have ISA slots on your motherboard.  ISA is the
11611da177e4SLinus Torvalds	  name of a bus system, i.e. the way the CPU talks to the other stuff
11621da177e4SLinus Torvalds	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
11631da177e4SLinus Torvalds	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
11641da177e4SLinus Torvalds	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
11651da177e4SLinus Torvalds
1166065909b9SRussell King# Select ISA DMA controller support
11671da177e4SLinus Torvaldsconfig ISA_DMA
11681da177e4SLinus Torvalds	bool
1169065909b9SRussell King	select ISA_DMA_API
11701da177e4SLinus Torvalds
1171065909b9SRussell King# Select ISA DMA interface
11725cae841bSAl Viroconfig ISA_DMA_API
11735cae841bSAl Viro	bool
11745cae841bSAl Viro
11751da177e4SLinus Torvaldsconfig PCI
11765f32f7a0SAnton Vorontsov	bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE || ARCH_CNS3XXX
11771da177e4SLinus Torvalds	help
11781da177e4SLinus Torvalds	  Find out whether you have a PCI motherboard. PCI is the name of a
11791da177e4SLinus Torvalds	  bus system, i.e. the way the CPU talks to the other stuff inside
11801da177e4SLinus Torvalds	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
11811da177e4SLinus Torvalds	  VESA. If you have PCI, say Y, otherwise N.
11821da177e4SLinus Torvalds
118352882173SAnton Vorontsovconfig PCI_DOMAINS
118452882173SAnton Vorontsov	bool
118552882173SAnton Vorontsov	depends on PCI
118652882173SAnton Vorontsov
118736e23590SMatthew Wilcoxconfig PCI_SYSCALL
118836e23590SMatthew Wilcox	def_bool PCI
118936e23590SMatthew Wilcox
11901da177e4SLinus Torvalds# Select the host bridge type
11911da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505
11921da177e4SLinus Torvalds	bool
11931da177e4SLinus Torvalds	depends on PCI && ARCH_SHARK
11941da177e4SLinus Torvalds	default y
11951da177e4SLinus Torvalds
1196a0113a99SMike Rapoportconfig PCI_HOST_ITE8152
1197a0113a99SMike Rapoport	bool
1198a0113a99SMike Rapoport	depends on PCI && MACH_ARMCORE
1199a0113a99SMike Rapoport	default y
1200a0113a99SMike Rapoport	select DMABOUNCE
1201a0113a99SMike Rapoport
12021da177e4SLinus Torvaldssource "drivers/pci/Kconfig"
12031da177e4SLinus Torvalds
12041da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig"
12051da177e4SLinus Torvalds
12061da177e4SLinus Torvaldsendmenu
12071da177e4SLinus Torvalds
12081da177e4SLinus Torvaldsmenu "Kernel Features"
12091da177e4SLinus Torvalds
12100567a0c0SKevin Hilmansource "kernel/time/Kconfig"
12110567a0c0SKevin Hilman
12121da177e4SLinus Torvaldsconfig SMP
12131da177e4SLinus Torvalds	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1214971acb9bSRussell King	depends on EXPERIMENTAL
1215bc28248eSRussell King	depends on GENERIC_CLOCKEVENTS
1216971acb9bSRussell King	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
1217971acb9bSRussell King		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
121889c3dedfSDaniel Walker		 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
121989c3dedfSDaniel Walker		 ARCH_MSM_SCORPIONMP
1220f6dd9fa5SJens Axboe	select USE_GENERIC_SMP_HELPERS
122189c3dedfSDaniel Walker	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
12221da177e4SLinus Torvalds	help
12231da177e4SLinus Torvalds	  This enables support for systems with more than one CPU. If you have
12241da177e4SLinus Torvalds	  a system with only one CPU, like most personal computers, say N. If
12251da177e4SLinus Torvalds	  you have a system with more than one CPU, say Y.
12261da177e4SLinus Torvalds
12271da177e4SLinus Torvalds	  If you say N here, the kernel will run on single and multiprocessor
12281da177e4SLinus Torvalds	  machines, but will use only one CPU of a multiprocessor machine. If
12291da177e4SLinus Torvalds	  you say Y here, the kernel will run on many, but not all, single
12301da177e4SLinus Torvalds	  processor machines. On a single processor machine, the kernel will
12311da177e4SLinus Torvalds	  run faster if you say N here.
12321da177e4SLinus Torvalds
123303502faaSAdrian Bunk	  See also <file:Documentation/i386/IO-APIC.txt>,
12341da177e4SLinus Torvalds	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
123550a23e6eSJustin P. Mattock	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
12361da177e4SLinus Torvalds
12371da177e4SLinus Torvalds	  If you don't know what to do here, say N.
12381da177e4SLinus Torvalds
1239f00ec48fSRussell Kingconfig SMP_ON_UP
1240f00ec48fSRussell King	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1241f00ec48fSRussell King	depends on EXPERIMENTAL
1242f00ec48fSRussell King	depends on SMP && !XIP && !THUMB2_KERNEL
1243f00ec48fSRussell King	default y
1244f00ec48fSRussell King	help
1245f00ec48fSRussell King	  SMP kernels contain instructions which fail on non-SMP processors.
1246f00ec48fSRussell King	  Enabling this option allows the kernel to modify itself to make
1247f00ec48fSRussell King	  these instructions safe.  Disabling it allows about 1K of space
1248f00ec48fSRussell King	  savings.
1249f00ec48fSRussell King
1250f00ec48fSRussell King	  If you don't know what to do here, say Y.
1251f00ec48fSRussell King
1252a8cbcd92SRussell Kingconfig HAVE_ARM_SCU
1253a8cbcd92SRussell King	bool
1254a8cbcd92SRussell King	depends on SMP
1255a8cbcd92SRussell King	help
1256a8cbcd92SRussell King	  This option enables support for the ARM system coherency unit
1257a8cbcd92SRussell King
1258f32f4ce2SRussell Kingconfig HAVE_ARM_TWD
1259f32f4ce2SRussell King	bool
1260f32f4ce2SRussell King	depends on SMP
1261f32f4ce2SRussell King	help
1262f32f4ce2SRussell King	  This options enables support for the ARM timer and watchdog unit
1263f32f4ce2SRussell King
12648d5796d2SLennert Buytenhekchoice
12658d5796d2SLennert Buytenhek	prompt "Memory split"
12668d5796d2SLennert Buytenhek	default VMSPLIT_3G
12678d5796d2SLennert Buytenhek	help
12688d5796d2SLennert Buytenhek	  Select the desired split between kernel and user memory.
12698d5796d2SLennert Buytenhek
12708d5796d2SLennert Buytenhek	  If you are not absolutely sure what you are doing, leave this
12718d5796d2SLennert Buytenhek	  option alone!
12728d5796d2SLennert Buytenhek
12738d5796d2SLennert Buytenhek	config VMSPLIT_3G
12748d5796d2SLennert Buytenhek		bool "3G/1G user/kernel split"
12758d5796d2SLennert Buytenhek	config VMSPLIT_2G
12768d5796d2SLennert Buytenhek		bool "2G/2G user/kernel split"
12778d5796d2SLennert Buytenhek	config VMSPLIT_1G
12788d5796d2SLennert Buytenhek		bool "1G/3G user/kernel split"
12798d5796d2SLennert Buytenhekendchoice
12808d5796d2SLennert Buytenhek
12818d5796d2SLennert Buytenhekconfig PAGE_OFFSET
12828d5796d2SLennert Buytenhek	hex
12838d5796d2SLennert Buytenhek	default 0x40000000 if VMSPLIT_1G
12848d5796d2SLennert Buytenhek	default 0x80000000 if VMSPLIT_2G
12858d5796d2SLennert Buytenhek	default 0xC0000000
12868d5796d2SLennert Buytenhek
12871da177e4SLinus Torvaldsconfig NR_CPUS
12881da177e4SLinus Torvalds	int "Maximum number of CPUs (2-32)"
12891da177e4SLinus Torvalds	range 2 32
12901da177e4SLinus Torvalds	depends on SMP
12911da177e4SLinus Torvalds	default "4"
12921da177e4SLinus Torvalds
1293a054a811SRussell Kingconfig HOTPLUG_CPU
1294a054a811SRussell King	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1295a054a811SRussell King	depends on SMP && HOTPLUG && EXPERIMENTAL
1296176bfc44SDaniel Walker	depends on !ARCH_MSM
1297a054a811SRussell King	help
1298a054a811SRussell King	  Say Y here to experiment with turning CPUs off and on.  CPUs
1299a054a811SRussell King	  can be controlled through /sys/devices/system/cpu.
1300a054a811SRussell King
130137ee16aeSRussell Kingconfig LOCAL_TIMERS
130237ee16aeSRussell King	bool "Use local timer interrupts"
1303971acb9bSRussell King	depends on SMP
130437ee16aeSRussell King	default y
130589c3dedfSDaniel Walker	select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
130637ee16aeSRussell King	help
130737ee16aeSRussell King	  Enable support for local timers on SMP platforms, rather then the
130837ee16aeSRussell King	  legacy IPI broadcast method.  Local timers allows the system
130937ee16aeSRussell King	  accounting to be spread across the timer interval, preventing a
131037ee16aeSRussell King	  "thundering herd" at every timer tick.
131137ee16aeSRussell King
1312d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt
13131da177e4SLinus Torvalds
1314f8065813SRussell Kingconfig HZ
1315f8065813SRussell King	int
131649b7a491SKukjin Kim	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
13172192482eSRussell King		ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
1318bfe65704SRussell King	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
13195248c657SDavid Brownell	default AT91_TIMER_HZ if ARCH_AT91
13205da3e714SMagnus Damm	default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
1321f8065813SRussell King	default 100
1322f8065813SRussell King
132316c79651SCatalin Marinasconfig THUMB2_KERNEL
132416c79651SCatalin Marinas	bool "Compile the kernel in Thumb-2 mode"
132516c79651SCatalin Marinas	depends on CPU_V7 && EXPERIMENTAL
132616c79651SCatalin Marinas	select AEABI
132716c79651SCatalin Marinas	select ARM_ASM_UNIFIED
132816c79651SCatalin Marinas	help
132916c79651SCatalin Marinas	  By enabling this option, the kernel will be compiled in
133016c79651SCatalin Marinas	  Thumb-2 mode. A compiler/assembler that understand the unified
133116c79651SCatalin Marinas	  ARM-Thumb syntax is needed.
133216c79651SCatalin Marinas
133316c79651SCatalin Marinas	  If unsure, say N.
133416c79651SCatalin Marinas
13350becb088SCatalin Marinasconfig ARM_ASM_UNIFIED
13360becb088SCatalin Marinas	bool
13370becb088SCatalin Marinas
1338704bdda0SNicolas Pitreconfig AEABI
1339704bdda0SNicolas Pitre	bool "Use the ARM EABI to compile the kernel"
1340704bdda0SNicolas Pitre	help
1341704bdda0SNicolas Pitre	  This option allows for the kernel to be compiled using the latest
1342704bdda0SNicolas Pitre	  ARM ABI (aka EABI).  This is only useful if you are using a user
1343704bdda0SNicolas Pitre	  space environment that is also compiled with EABI.
1344704bdda0SNicolas Pitre
1345704bdda0SNicolas Pitre	  Since there are major incompatibilities between the legacy ABI and
1346704bdda0SNicolas Pitre	  EABI, especially with regard to structure member alignment, this
1347704bdda0SNicolas Pitre	  option also changes the kernel syscall calling convention to
1348704bdda0SNicolas Pitre	  disambiguate both ABIs and allow for backward compatibility support
1349704bdda0SNicolas Pitre	  (selected with CONFIG_OABI_COMPAT).
1350704bdda0SNicolas Pitre
1351704bdda0SNicolas Pitre	  To use this you need GCC version 4.0.0 or later.
1352704bdda0SNicolas Pitre
13536c90c872SNicolas Pitreconfig OABI_COMPAT
1354a73a3ff1SRussell King	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
135561c484d4SNicolas Pitre	depends on AEABI && EXPERIMENTAL
13566c90c872SNicolas Pitre	default y
13576c90c872SNicolas Pitre	help
13586c90c872SNicolas Pitre	  This option preserves the old syscall interface along with the
13596c90c872SNicolas Pitre	  new (ARM EABI) one. It also provides a compatibility layer to
13606c90c872SNicolas Pitre	  intercept syscalls that have structure arguments which layout
13616c90c872SNicolas Pitre	  in memory differs between the legacy ABI and the new ARM EABI
13626c90c872SNicolas Pitre	  (only for non "thumb" binaries). This option adds a tiny
13636c90c872SNicolas Pitre	  overhead to all syscalls and produces a slightly larger kernel.
13646c90c872SNicolas Pitre	  If you know you'll be using only pure EABI user space then you
13656c90c872SNicolas Pitre	  can say N here. If this option is not selected and you attempt
13666c90c872SNicolas Pitre	  to execute a legacy ABI binary then the result will be
13676c90c872SNicolas Pitre	  UNPREDICTABLE (in fact it can be predicted that it won't work
13686c90c872SNicolas Pitre	  at all). If in doubt say Y.
13696c90c872SNicolas Pitre
1370eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL
1371e80d6a24SMel Gorman	bool
1372e80d6a24SMel Gorman
137305944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE
137405944d74SRussell King	bool
137505944d74SRussell King
137607a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT
137707a2f737SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
137807a2f737SRussell King
137905944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL
1380be370302SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
1381c80d79d7SYasunori Goto
1382053a96caSNicolas Pitreconfig HIGHMEM
1383053a96caSNicolas Pitre	bool "High Memory Support (EXPERIMENTAL)"
1384053a96caSNicolas Pitre	depends on MMU && EXPERIMENTAL
1385053a96caSNicolas Pitre	help
1386053a96caSNicolas Pitre	  The address space of ARM processors is only 4 Gigabytes large
1387053a96caSNicolas Pitre	  and it has to accommodate user address space, kernel address
1388053a96caSNicolas Pitre	  space as well as some memory mapped IO. That means that, if you
1389053a96caSNicolas Pitre	  have a large amount of physical memory and/or IO, not all of the
1390053a96caSNicolas Pitre	  memory can be "permanently mapped" by the kernel. The physical
1391053a96caSNicolas Pitre	  memory that is not permanently mapped is called "high memory".
1392053a96caSNicolas Pitre
1393053a96caSNicolas Pitre	  Depending on the selected kernel/user memory split, minimum
1394053a96caSNicolas Pitre	  vmalloc space and actual amount of RAM, you may not need this
1395053a96caSNicolas Pitre	  option which should result in a slightly faster kernel.
1396053a96caSNicolas Pitre
1397053a96caSNicolas Pitre	  If unsure, say n.
1398053a96caSNicolas Pitre
139965cec8e3SRussell Kingconfig HIGHPTE
140065cec8e3SRussell King	bool "Allocate 2nd-level pagetables from highmem"
140165cec8e3SRussell King	depends on HIGHMEM
140265cec8e3SRussell King	depends on !OUTER_CACHE
140365cec8e3SRussell King
14041b8873a0SJamie Ilesconfig HW_PERF_EVENTS
14051b8873a0SJamie Iles	bool "Enable hardware performance counter support for perf events"
1406fe166148SWill Deacon	depends on PERF_EVENTS && CPU_HAS_PMU
14071b8873a0SJamie Iles	default y
14081b8873a0SJamie Iles	help
14091b8873a0SJamie Iles	  Enable hardware performance counter support for perf events. If
14101b8873a0SJamie Iles	  disabled, perf events will use software events only.
14111b8873a0SJamie Iles
1412354e6f72Seric miaoconfig SPARSE_IRQ
1413c1ba6ba3Seric miao	def_bool n
1414354e6f72Seric miao	help
1415354e6f72Seric miao	  This enables support for sparse irqs. This is useful in general
1416354e6f72Seric miao	  as most CPUs have a fairly sparse array of IRQ vectors, which
1417354e6f72Seric miao	  the irq_desc then maps directly on to. Systems with a high
1418354e6f72Seric miao	  number of off-chip IRQs will want to treat this as
1419354e6f72Seric miao	  experimental until they have been independently verified.
1420354e6f72Seric miao
14213f22ab27SDave Hansensource "mm/Kconfig"
14223f22ab27SDave Hansen
1423c1b2d970SMagnus Dammconfig FORCE_MAX_ZONEORDER
1424c1b2d970SMagnus Damm	int "Maximum zone order" if ARCH_SHMOBILE
1425c1b2d970SMagnus Damm	range 11 64 if ARCH_SHMOBILE
1426c1b2d970SMagnus Damm	default "9" if SA1111
1427c1b2d970SMagnus Damm	default "11"
1428c1b2d970SMagnus Damm	help
1429c1b2d970SMagnus Damm	  The kernel memory allocator divides physically contiguous memory
1430c1b2d970SMagnus Damm	  blocks into "zones", where each zone is a power of two number of
1431c1b2d970SMagnus Damm	  pages.  This option selects the largest power of two that the kernel
1432c1b2d970SMagnus Damm	  keeps in the memory allocator.  If you need to allocate very large
1433c1b2d970SMagnus Damm	  blocks of physically contiguous memory, then you may need to
1434c1b2d970SMagnus Damm	  increase this value.
1435c1b2d970SMagnus Damm
1436c1b2d970SMagnus Damm	  This config option is actually maximum order plus one. For example,
1437c1b2d970SMagnus Damm	  a value of 11 means that the largest free memory block is 2^10 pages.
1438c1b2d970SMagnus Damm
14391da177e4SLinus Torvaldsconfig LEDS
14401da177e4SLinus Torvalds	bool "Timer and CPU usage LEDs"
1441e055d5bfSAdrian Bunk	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
14428c8fdbc9SSascha Hauer		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
14431da177e4SLinus Torvalds		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
14441da177e4SLinus Torvalds		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
144573a59c1cSSAN People		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
144625329671SJürgen Schindele		   ARCH_AT91 || ARCH_DAVINCI || \
1447ff3042fbSColin Tuckley		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
14481da177e4SLinus Torvalds	help
14491da177e4SLinus Torvalds	  If you say Y here, the LEDs on your machine will be used
14501da177e4SLinus Torvalds	  to provide useful information about your current system status.
14511da177e4SLinus Torvalds
14521da177e4SLinus Torvalds	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
14531da177e4SLinus Torvalds	  be able to select which LEDs are active using the options below. If
14541da177e4SLinus Torvalds	  you are compiling a kernel for the EBSA-110 or the LART however, the
14551da177e4SLinus Torvalds	  red LED will simply flash regularly to indicate that the system is
14561da177e4SLinus Torvalds	  still functional. It is safe to say Y here if you have a CATS
14571da177e4SLinus Torvalds	  system, but the driver will do nothing.
14581da177e4SLinus Torvalds
14591da177e4SLinus Torvaldsconfig LEDS_TIMER
14601da177e4SLinus Torvalds	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1461eebdf7d7SDavid Brownell			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1462eebdf7d7SDavid Brownell			    || MACH_OMAP_PERSEUS2
14631da177e4SLinus Torvalds	depends on LEDS
14640567a0c0SKevin Hilman	depends on !GENERIC_CLOCKEVENTS
14651da177e4SLinus Torvalds	default y if ARCH_EBSA110
14661da177e4SLinus Torvalds	help
14671da177e4SLinus Torvalds	  If you say Y here, one of the system LEDs (the green one on the
14681da177e4SLinus Torvalds	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
14691da177e4SLinus Torvalds	  will flash regularly to indicate that the system is still
14701da177e4SLinus Torvalds	  operational. This is mainly useful to kernel hackers who are
14711da177e4SLinus Torvalds	  debugging unstable kernels.
14721da177e4SLinus Torvalds
14731da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
14741da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
14751da177e4SLinus Torvalds	  will overrule the CPU usage LED.
14761da177e4SLinus Torvalds
14771da177e4SLinus Torvaldsconfig LEDS_CPU
14781da177e4SLinus Torvalds	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1479eebdf7d7SDavid Brownell			!ARCH_OMAP) \
1480eebdf7d7SDavid Brownell			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1481eebdf7d7SDavid Brownell			|| MACH_OMAP_PERSEUS2
14821da177e4SLinus Torvalds	depends on LEDS
14831da177e4SLinus Torvalds	help
14841da177e4SLinus Torvalds	  If you say Y here, the red LED will be used to give a good real
14851da177e4SLinus Torvalds	  time indication of CPU usage, by lighting whenever the idle task
14861da177e4SLinus Torvalds	  is not currently executing.
14871da177e4SLinus Torvalds
14881da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
14891da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
14901da177e4SLinus Torvalds	  will overrule the CPU usage LED.
14911da177e4SLinus Torvalds
14921da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP
14931da177e4SLinus Torvalds	bool
1494f12d0d7cSHyok S. Choi	depends on CPU_CP15_MMU
14951da177e4SLinus Torvalds	default y if !ARCH_EBSA110
1496e119bfffSRussell King	select HAVE_PROC_CPU if PROC_FS
14971da177e4SLinus Torvalds	help
14981da177e4SLinus Torvalds	  ARM processors cannot fetch/store information which is not
14991da177e4SLinus Torvalds	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
15001da177e4SLinus Torvalds	  address divisible by 4. On 32-bit ARM processors, these non-aligned
15011da177e4SLinus Torvalds	  fetch/store instructions will be emulated in software if you say
15021da177e4SLinus Torvalds	  here, which has a severe performance impact. This is necessary for
15031da177e4SLinus Torvalds	  correct operation of some network protocols. With an IP-only
15041da177e4SLinus Torvalds	  configuration it is safe to say N, otherwise say Y.
15051da177e4SLinus Torvalds
150639ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY
150739ec58f3SLennert Buytenhek	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
150839ec58f3SLennert Buytenhek	depends on MMU && EXPERIMENTAL
150939ec58f3SLennert Buytenhek	default y if CPU_FEROCEON
151039ec58f3SLennert Buytenhek	help
151139ec58f3SLennert Buytenhek	  Implement faster copy_to_user and clear_user methods for CPU
151239ec58f3SLennert Buytenhek	  cores where a 8-word STM instruction give significantly higher
151339ec58f3SLennert Buytenhek	  memory write throughput than a sequence of individual 32bit stores.
151439ec58f3SLennert Buytenhek
151539ec58f3SLennert Buytenhek	  A possible side effect is a slight increase in scheduling latency
151639ec58f3SLennert Buytenhek	  between threads sharing the same address space if they invoke
151739ec58f3SLennert Buytenhek	  such copy operations with large buffers.
151839ec58f3SLennert Buytenhek
151939ec58f3SLennert Buytenhek	  However, if the CPU data cache is using a write-allocate mode,
152039ec58f3SLennert Buytenhek	  this option is unlikely to provide any performance gain.
152139ec58f3SLennert Buytenhek
152270c70d97SNicolas Pitreconfig SECCOMP
152370c70d97SNicolas Pitre	bool
152470c70d97SNicolas Pitre	prompt "Enable seccomp to safely compute untrusted bytecode"
152570c70d97SNicolas Pitre	---help---
152670c70d97SNicolas Pitre	  This kernel feature is useful for number crunching applications
152770c70d97SNicolas Pitre	  that may need to compute untrusted bytecode during their
152870c70d97SNicolas Pitre	  execution. By using pipes or other transports made available to
152970c70d97SNicolas Pitre	  the process as file descriptors supporting the read/write
153070c70d97SNicolas Pitre	  syscalls, it's possible to isolate those applications in
153170c70d97SNicolas Pitre	  their own address space using seccomp. Once seccomp is
153270c70d97SNicolas Pitre	  enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
153370c70d97SNicolas Pitre	  and the task is only allowed to execute a few safe syscalls
153470c70d97SNicolas Pitre	  defined by each seccomp mode.
153570c70d97SNicolas Pitre
1536c743f380SNicolas Pitreconfig CC_STACKPROTECTOR
1537c743f380SNicolas Pitre	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1538c743f380SNicolas Pitre	help
1539c743f380SNicolas Pitre	  This option turns on the -fstack-protector GCC feature. This
1540c743f380SNicolas Pitre	  feature puts, at the beginning of functions, a canary value on
1541c743f380SNicolas Pitre	  the stack just before the return address, and validates
1542c743f380SNicolas Pitre	  the value just before actually returning.  Stack based buffer
1543c743f380SNicolas Pitre	  overflows (that need to overwrite this return address) now also
1544c743f380SNicolas Pitre	  overwrite the canary, which gets detected and the attack is then
1545c743f380SNicolas Pitre	  neutralized via a kernel panic.
1546c743f380SNicolas Pitre	  This feature requires gcc version 4.2 or above.
1547c743f380SNicolas Pitre
154873a65b3fSUwe Kleine-Königconfig DEPRECATED_PARAM_STRUCT
154973a65b3fSUwe Kleine-König	bool "Provide old way to pass kernel parameters"
155073a65b3fSUwe Kleine-König	help
155173a65b3fSUwe Kleine-König	  This was deprecated in 2001 and announced to live on for 5 years.
155273a65b3fSUwe Kleine-König	  Some old boot loaders still use this way.
155373a65b3fSUwe Kleine-König
15541da177e4SLinus Torvaldsendmenu
15551da177e4SLinus Torvalds
15561da177e4SLinus Torvaldsmenu "Boot options"
15571da177e4SLinus Torvalds
15581da177e4SLinus Torvalds# Compressed boot loader in ROM.  Yes, we really want to ask about
15591da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files.
15601da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT
15611da177e4SLinus Torvalds	hex "Compressed ROM boot loader base address"
15621da177e4SLinus Torvalds	default "0"
15631da177e4SLinus Torvalds	help
15641da177e4SLinus Torvalds	  The physical address at which the ROM-able zImage is to be
15651da177e4SLinus Torvalds	  placed in the target.  Platforms which normally make use of
15661da177e4SLinus Torvalds	  ROM-able zImage formats normally set this to a suitable
15671da177e4SLinus Torvalds	  value in their defconfig file.
15681da177e4SLinus Torvalds
15691da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
15701da177e4SLinus Torvalds
15711da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS
15721da177e4SLinus Torvalds	hex "Compressed ROM boot loader BSS address"
15731da177e4SLinus Torvalds	default "0"
15741da177e4SLinus Torvalds	help
1575f8c440b2SDan Fandrich	  The base address of an area of read/write memory in the target
1576f8c440b2SDan Fandrich	  for the ROM-able zImage which must be available while the
1577f8c440b2SDan Fandrich	  decompressor is running. It must be large enough to hold the
1578f8c440b2SDan Fandrich	  entire decompressed kernel plus an additional 128 KiB.
1579f8c440b2SDan Fandrich	  Platforms which normally make use of ROM-able zImage formats
1580f8c440b2SDan Fandrich	  normally set this to a suitable value in their defconfig file.
15811da177e4SLinus Torvalds
15821da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
15831da177e4SLinus Torvalds
15841da177e4SLinus Torvaldsconfig ZBOOT_ROM
15851da177e4SLinus Torvalds	bool "Compressed boot loader in ROM/flash"
15861da177e4SLinus Torvalds	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
15871da177e4SLinus Torvalds	help
15881da177e4SLinus Torvalds	  Say Y here if you intend to execute your compressed kernel image
15891da177e4SLinus Torvalds	  (zImage) directly from ROM or flash.  If unsure, say N.
15901da177e4SLinus Torvalds
15911da177e4SLinus Torvaldsconfig CMDLINE
15921da177e4SLinus Torvalds	string "Default kernel command string"
15931da177e4SLinus Torvalds	default ""
15941da177e4SLinus Torvalds	help
15951da177e4SLinus Torvalds	  On some architectures (EBSA110 and CATS), there is currently no way
15961da177e4SLinus Torvalds	  for the boot loader to pass arguments to the kernel. For these
15971da177e4SLinus Torvalds	  architectures, you should supply some command-line options at build
15981da177e4SLinus Torvalds	  time by entering them here. As a minimum, you should specify the
15991da177e4SLinus Torvalds	  memory size and the root device (e.g., mem=64M root=/dev/nfs).
16001da177e4SLinus Torvalds
160192d2040dSAlexander Hollerconfig CMDLINE_FORCE
160292d2040dSAlexander Holler	bool "Always use the default kernel command string"
160392d2040dSAlexander Holler	depends on CMDLINE != ""
160492d2040dSAlexander Holler	help
160592d2040dSAlexander Holler	  Always use the default kernel command string, even if the boot
160692d2040dSAlexander Holler	  loader passes other arguments to the kernel.
160792d2040dSAlexander Holler	  This is useful if you cannot or don't want to change the
160892d2040dSAlexander Holler	  command-line options your boot loader passes to the kernel.
160992d2040dSAlexander Holler
161092d2040dSAlexander Holler	  If unsure, say N.
161192d2040dSAlexander Holler
16121da177e4SLinus Torvaldsconfig XIP_KERNEL
16131da177e4SLinus Torvalds	bool "Kernel Execute-In-Place from ROM"
16141da177e4SLinus Torvalds	depends on !ZBOOT_ROM
16151da177e4SLinus Torvalds	help
16161da177e4SLinus Torvalds	  Execute-In-Place allows the kernel to run from non-volatile storage
16171da177e4SLinus Torvalds	  directly addressable by the CPU, such as NOR flash. This saves RAM
16181da177e4SLinus Torvalds	  space since the text section of the kernel is not loaded from flash
16191da177e4SLinus Torvalds	  to RAM.  Read-write sections, such as the data section and stack,
16201da177e4SLinus Torvalds	  are still copied to RAM.  The XIP kernel is not compressed since
16211da177e4SLinus Torvalds	  it has to run directly from flash, so it will take more space to
16221da177e4SLinus Torvalds	  store it.  The flash address used to link the kernel object files,
16231da177e4SLinus Torvalds	  and for storing it, is configuration dependent. Therefore, if you
16241da177e4SLinus Torvalds	  say Y here, you must know the proper physical address where to
16251da177e4SLinus Torvalds	  store the kernel image depending on your own flash memory usage.
16261da177e4SLinus Torvalds
16271da177e4SLinus Torvalds	  Also note that the make target becomes "make xipImage" rather than
16281da177e4SLinus Torvalds	  "make zImage" or "make Image".  The final kernel binary to put in
16291da177e4SLinus Torvalds	  ROM memory will be arch/arm/boot/xipImage.
16301da177e4SLinus Torvalds
16311da177e4SLinus Torvalds	  If unsure, say N.
16321da177e4SLinus Torvalds
16331da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR
16341da177e4SLinus Torvalds	hex "XIP Kernel Physical Location"
16351da177e4SLinus Torvalds	depends on XIP_KERNEL
16361da177e4SLinus Torvalds	default "0x00080000"
16371da177e4SLinus Torvalds	help
16381da177e4SLinus Torvalds	  This is the physical address in your flash memory the kernel will
16391da177e4SLinus Torvalds	  be linked for and stored to.  This address is dependent on your
16401da177e4SLinus Torvalds	  own flash usage.
16411da177e4SLinus Torvalds
1642c587e4a6SRichard Purdieconfig KEXEC
1643c587e4a6SRichard Purdie	bool "Kexec system call (EXPERIMENTAL)"
1644c587e4a6SRichard Purdie	depends on EXPERIMENTAL
1645c587e4a6SRichard Purdie	help
1646c587e4a6SRichard Purdie	  kexec is a system call that implements the ability to shutdown your
1647c587e4a6SRichard Purdie	  current kernel, and to start another kernel.  It is like a reboot
164801dd2fbfSMatt LaPlante	  but it is independent of the system firmware.   And like a reboot
1649c587e4a6SRichard Purdie	  you can start any kernel with it, not just Linux.
1650c587e4a6SRichard Purdie
1651c587e4a6SRichard Purdie	  It is an ongoing process to be certain the hardware in a machine
1652c587e4a6SRichard Purdie	  is properly shutdown, so do not be surprised if this code does not
1653c587e4a6SRichard Purdie	  initially work for you.  It may help to enable device hotplugging
1654c587e4a6SRichard Purdie	  support.
1655c587e4a6SRichard Purdie
16564cd9d6f7SRichard Purdieconfig ATAGS_PROC
16574cd9d6f7SRichard Purdie	bool "Export atags in procfs"
1658b98d7291SUli Luckas	depends on KEXEC
1659b98d7291SUli Luckas	default y
16604cd9d6f7SRichard Purdie	help
16614cd9d6f7SRichard Purdie	  Should the atags used to boot the kernel be exported in an "atags"
16624cd9d6f7SRichard Purdie	  file in procfs. Useful with kexec.
16634cd9d6f7SRichard Purdie
1664e69edc79SEric Miaoconfig AUTO_ZRELADDR
1665e69edc79SEric Miao	bool "Auto calculation of the decompressed kernel image address"
1666e69edc79SEric Miao	depends on !ZBOOT_ROM && !ARCH_U300
1667e69edc79SEric Miao	help
1668e69edc79SEric Miao	  ZRELADDR is the physical address where the decompressed kernel
1669e69edc79SEric Miao	  image will be placed. If AUTO_ZRELADDR is selected, the address
1670e69edc79SEric Miao	  will be determined at run-time by masking the current IP with
1671e69edc79SEric Miao	  0xf8000000. This assumes the zImage being placed in the first 128MB
1672e69edc79SEric Miao	  from start of memory.
1673e69edc79SEric Miao
16741da177e4SLinus Torvaldsendmenu
16751da177e4SLinus Torvalds
1676ac9d7efcSRussell Kingmenu "CPU Power Management"
16771da177e4SLinus Torvalds
167889c52ed4SBen Dooksif ARCH_HAS_CPUFREQ
16791da177e4SLinus Torvalds
16801da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig"
16811da177e4SLinus Torvalds
168264f102b6SYong Shenconfig CPU_FREQ_IMX
168364f102b6SYong Shen	tristate "CPUfreq driver for i.MX CPUs"
168464f102b6SYong Shen	depends on ARCH_MXC && CPU_FREQ
168564f102b6SYong Shen	help
168664f102b6SYong Shen	  This enables the CPUfreq driver for i.MX CPUs.
168764f102b6SYong Shen
16881da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100
16891da177e4SLinus Torvalds	bool
16901da177e4SLinus Torvalds
16911da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110
16921da177e4SLinus Torvalds	bool
16931da177e4SLinus Torvalds
16941da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR
16951da177e4SLinus Torvalds	tristate "CPUfreq driver for ARM Integrator CPUs"
16961da177e4SLinus Torvalds	depends on ARCH_INTEGRATOR && CPU_FREQ
16971da177e4SLinus Torvalds	default y
16981da177e4SLinus Torvalds	help
16991da177e4SLinus Torvalds	  This enables the CPUfreq driver for ARM Integrator CPUs.
17001da177e4SLinus Torvalds
17011da177e4SLinus Torvalds	  For details, take a look at <file:Documentation/cpu-freq>.
17021da177e4SLinus Torvalds
17031da177e4SLinus Torvalds	  If in doubt, say Y.
17041da177e4SLinus Torvalds
17059e2697ffSRussell Kingconfig CPU_FREQ_PXA
17069e2697ffSRussell King	bool
17079e2697ffSRussell King	depends on CPU_FREQ && ARCH_PXA && PXA25x
17089e2697ffSRussell King	default y
17099e2697ffSRussell King	select CPU_FREQ_DEFAULT_GOV_USERSPACE
17109e2697ffSRussell King
1711b3748dddSMark Brownconfig CPU_FREQ_S3C64XX
1712b3748dddSMark Brown	bool "CPUfreq support for Samsung S3C64XX CPUs"
1713b3748dddSMark Brown	depends on CPU_FREQ && CPU_S3C6410
1714b3748dddSMark Brown
17159d56c02aSBen Dooksconfig CPU_FREQ_S3C
17169d56c02aSBen Dooks	bool
17179d56c02aSBen Dooks	help
17189d56c02aSBen Dooks	  Internal configuration node for common cpufreq on Samsung SoC
17199d56c02aSBen Dooks
17209d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX
17219d56c02aSBen Dooks	bool "CPUfreq driver for Samsung S3C24XX series CPUs"
17229d56c02aSBen Dooks	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
17239d56c02aSBen Dooks	select CPU_FREQ_S3C
17249d56c02aSBen Dooks	help
17259d56c02aSBen Dooks	  This enables the CPUfreq driver for the Samsung S3C24XX family
17269d56c02aSBen Dooks	  of CPUs.
17279d56c02aSBen Dooks
17289d56c02aSBen Dooks	  For details, take a look at <file:Documentation/cpu-freq>.
17299d56c02aSBen Dooks
17309d56c02aSBen Dooks	  If in doubt, say N.
17319d56c02aSBen Dooks
17329d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL
17339d56c02aSBen Dooks	bool "Support CPUfreq changing of PLL frequency"
17349d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
17359d56c02aSBen Dooks	help
17369d56c02aSBen Dooks	  Compile in support for changing the PLL frequency from the
17379d56c02aSBen Dooks	  S3C24XX series CPUfreq driver. The PLL takes time to settle
17389d56c02aSBen Dooks	  after a frequency change, so by default it is not enabled.
17399d56c02aSBen Dooks
17409d56c02aSBen Dooks	  This also means that the PLL tables for the selected CPU(s) will
17419d56c02aSBen Dooks	  be built which may increase the size of the kernel image.
17429d56c02aSBen Dooks
17439d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG
17449d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver core"
17459d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
17469d56c02aSBen Dooks	help
17479d56c02aSBen Dooks	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
17489d56c02aSBen Dooks
17499d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG
17509d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver IO timing"
17519d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
17529d56c02aSBen Dooks	help
17539d56c02aSBen Dooks	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
17549d56c02aSBen Dooks
1755e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS
1756e6d197a6SBen Dooks	bool "Export debugfs for CPUFreq"
1757e6d197a6SBen Dooks	depends on CPU_FREQ_S3C24XX && DEBUG_FS
1758e6d197a6SBen Dooks	help
1759e6d197a6SBen Dooks	  Export status information via debugfs.
1760e6d197a6SBen Dooks
17611da177e4SLinus Torvaldsendif
17621da177e4SLinus Torvalds
1763ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig"
1764ac9d7efcSRussell King
1765ac9d7efcSRussell Kingendmenu
1766ac9d7efcSRussell King
17671da177e4SLinus Torvaldsmenu "Floating point emulation"
17681da177e4SLinus Torvalds
17691da177e4SLinus Torvaldscomment "At least one emulation must be selected"
17701da177e4SLinus Torvalds
17711da177e4SLinus Torvaldsconfig FPE_NWFPE
17721da177e4SLinus Torvalds	bool "NWFPE math emulation"
17738993a44cSNicolas Pitre	depends on !AEABI || OABI_COMPAT
17741da177e4SLinus Torvalds	---help---
17751da177e4SLinus Torvalds	  Say Y to include the NWFPE floating point emulator in the kernel.
17761da177e4SLinus Torvalds	  This is necessary to run most binaries. Linux does not currently
17771da177e4SLinus Torvalds	  support floating point hardware so you need to say Y here even if
17781da177e4SLinus Torvalds	  your machine has an FPA or floating point co-processor podule.
17791da177e4SLinus Torvalds
17801da177e4SLinus Torvalds	  You may say N here if you are going to load the Acorn FPEmulator
17811da177e4SLinus Torvalds	  early in the bootup.
17821da177e4SLinus Torvalds
17831da177e4SLinus Torvaldsconfig FPE_NWFPE_XP
17841da177e4SLinus Torvalds	bool "Support extended precision"
1785bedf142bSLennert Buytenhek	depends on FPE_NWFPE
17861da177e4SLinus Torvalds	help
17871da177e4SLinus Torvalds	  Say Y to include 80-bit support in the kernel floating-point
17881da177e4SLinus Torvalds	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
17891da177e4SLinus Torvalds	  Note that gcc does not generate 80-bit operations by default,
17901da177e4SLinus Torvalds	  so in most cases this option only enlarges the size of the
17911da177e4SLinus Torvalds	  floating point emulator without any good reason.
17921da177e4SLinus Torvalds
17931da177e4SLinus Torvalds	  You almost surely want to say N here.
17941da177e4SLinus Torvalds
17951da177e4SLinus Torvaldsconfig FPE_FASTFPE
17961da177e4SLinus Torvalds	bool "FastFPE math emulation (EXPERIMENTAL)"
17978993a44cSNicolas Pitre	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
17981da177e4SLinus Torvalds	---help---
17991da177e4SLinus Torvalds	  Say Y here to include the FAST floating point emulator in the kernel.
18001da177e4SLinus Torvalds	  This is an experimental much faster emulator which now also has full
18011da177e4SLinus Torvalds	  precision for the mantissa.  It does not support any exceptions.
18021da177e4SLinus Torvalds	  It is very simple, and approximately 3-6 times faster than NWFPE.
18031da177e4SLinus Torvalds
18041da177e4SLinus Torvalds	  It should be sufficient for most programs.  It may be not suitable
18051da177e4SLinus Torvalds	  for scientific calculations, but you have to check this for yourself.
18061da177e4SLinus Torvalds	  If you do not feel you need a faster FP emulation you should better
18071da177e4SLinus Torvalds	  choose NWFPE.
18081da177e4SLinus Torvalds
18091da177e4SLinus Torvaldsconfig VFP
18101da177e4SLinus Torvalds	bool "VFP-format floating point maths"
1811c00d4ffdSRussell King	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
18121da177e4SLinus Torvalds	help
18131da177e4SLinus Torvalds	  Say Y to include VFP support code in the kernel. This is needed
18141da177e4SLinus Torvalds	  if your hardware includes a VFP unit.
18151da177e4SLinus Torvalds
18161da177e4SLinus Torvalds	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
18171da177e4SLinus Torvalds	  release notes and additional status information.
18181da177e4SLinus Torvalds
18191da177e4SLinus Torvalds	  Say N if your target does not have VFP hardware.
18201da177e4SLinus Torvalds
182125ebee02SCatalin Marinasconfig VFPv3
182225ebee02SCatalin Marinas	bool
182325ebee02SCatalin Marinas	depends on VFP
182425ebee02SCatalin Marinas	default y if CPU_V7
182525ebee02SCatalin Marinas
1826b5872db4SCatalin Marinasconfig NEON
1827b5872db4SCatalin Marinas	bool "Advanced SIMD (NEON) Extension support"
1828b5872db4SCatalin Marinas	depends on VFPv3 && CPU_V7
1829b5872db4SCatalin Marinas	help
1830b5872db4SCatalin Marinas	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1831b5872db4SCatalin Marinas	  Extension.
1832b5872db4SCatalin Marinas
18331da177e4SLinus Torvaldsendmenu
18341da177e4SLinus Torvalds
18351da177e4SLinus Torvaldsmenu "Userspace binary formats"
18361da177e4SLinus Torvalds
18371da177e4SLinus Torvaldssource "fs/Kconfig.binfmt"
18381da177e4SLinus Torvalds
18391da177e4SLinus Torvaldsconfig ARTHUR
18401da177e4SLinus Torvalds	tristate "RISC OS personality"
1841704bdda0SNicolas Pitre	depends on !AEABI
18421da177e4SLinus Torvalds	help
18431da177e4SLinus Torvalds	  Say Y here to include the kernel code necessary if you want to run
18441da177e4SLinus Torvalds	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
18451da177e4SLinus Torvalds	  experimental; if this sounds frightening, say N and sleep in peace.
18461da177e4SLinus Torvalds	  You can also say M here to compile this support as a module (which
18471da177e4SLinus Torvalds	  will be called arthur).
18481da177e4SLinus Torvalds
18491da177e4SLinus Torvaldsendmenu
18501da177e4SLinus Torvalds
18511da177e4SLinus Torvaldsmenu "Power management options"
18521da177e4SLinus Torvalds
1853eceab4acSRussell Kingsource "kernel/power/Kconfig"
18541da177e4SLinus Torvalds
1855f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE
1856f4cb5700SJohannes Berg	def_bool y
1857f4cb5700SJohannes Berg
18581da177e4SLinus Torvaldsendmenu
18591da177e4SLinus Torvalds
1860d5950b43SSam Ravnborgsource "net/Kconfig"
1861d5950b43SSam Ravnborg
1862ac25150fSUwe Kleine-Königsource "drivers/Kconfig"
18631da177e4SLinus Torvalds
18641da177e4SLinus Torvaldssource "fs/Kconfig"
18651da177e4SLinus Torvalds
18661da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug"
18671da177e4SLinus Torvalds
18681da177e4SLinus Torvaldssource "security/Kconfig"
18691da177e4SLinus Torvalds
18701da177e4SLinus Torvaldssource "crypto/Kconfig"
18711da177e4SLinus Torvalds
18721da177e4SLinus Torvaldssource "lib/Kconfig"
1873