xref: /linux/arch/arm/Kconfig (revision 60f1435c3bab8b88712a4f96806e5ac9396aa49c)
11da177e4SLinus Torvaldsconfig ARM
21da177e4SLinus Torvalds	bool
31da177e4SLinus Torvalds	default y
4e17c6d56SDavid Woodhouse	select HAVE_AOUT
524056f52SRussell King	select HAVE_DMA_API_DEBUG
62064c946SAdrian Bunk	select HAVE_IDE
72778f620SRussell King	select HAVE_MEMBLOCK
812b824fbSAlessandro Zummo	select RTC_LIB
975e7153aSRalf Baechle	select SYS_SUPPORTS_APM_EMULATION
10d4c7b1f9SWill Deacon	select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
11fe166148SWill Deacon	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
125cbad0ebSJason Wessel	select HAVE_ARCH_KGDB
13ed7c84d5SDave Martin	select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
149edddaa2SAnanth N Mavinakayanahalli	select HAVE_KRETPROBES if (HAVE_KPROBES)
15606576ceSSteven Rostedt	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1680be7a7fSRabin Vincent	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
1780be7a7fSRabin Vincent	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
180e341af8SRabin Vincent	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
191fe53268SDmitry Baryshkov	select HAVE_GENERIC_DMA_COHERENT
20e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_GZIP
21e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_LZO
226e8699f7SAlbin Tonnerre	select HAVE_KERNEL_LZMA
23e360adbeSPeter Zijlstra	select HAVE_IRQ_WORK
247ada189fSJamie Iles	select HAVE_PERF_EVENTS
257ada189fSJamie Iles	select PERF_USE_VMALLOC
26e513f8bfSWill Deacon	select HAVE_REGS_AND_STACK_ACCESS_API
2719852e59SWill Deacon	select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
28ed60453fSRabin Vincent	select HAVE_C_RECORDMCOUNT
291da177e4SLinus Torvalds	help
301da177e4SLinus Torvalds	  The ARM series is a line of low-power-consumption RISC chip designs
31f6c8965aSMartin Michlmayr	  licensed by ARM Ltd and targeted at embedded applications and
321da177e4SLinus Torvalds	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
331da177e4SLinus Torvalds	  manufactured, but legacy ARM-based PC hardware remains popular in
341da177e4SLinus Torvalds	  Europe.  There is an ARM Linux project with a web page at
351da177e4SLinus Torvalds	  <http://www.arm.linux.org.uk/>.
361da177e4SLinus Torvalds
371a189b97SRussell Kingconfig HAVE_PWM
381a189b97SRussell King	bool
391a189b97SRussell King
400b05da72SHans Ulli Krollconfig MIGHT_HAVE_PCI
410b05da72SHans Ulli Kroll	bool
420b05da72SHans Ulli Kroll
4375e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION
4475e7153aSRalf Baechle	bool
4575e7153aSRalf Baechle
46112f38a4SRussell Kingconfig HAVE_SCHED_CLOCK
47112f38a4SRussell King	bool
48112f38a4SRussell King
490a938b97SDavid Brownellconfig GENERIC_GPIO
500a938b97SDavid Brownell	bool
510a938b97SDavid Brownell
525cfc8ee0SJohn Stultzconfig ARCH_USES_GETTIMEOFFSET
535cfc8ee0SJohn Stultz	bool
545cfc8ee0SJohn Stultz	default n
55746140c7SKevin Hilman
560567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS
570567a0c0SKevin Hilman	bool
580567a0c0SKevin Hilman
59a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST
60a8655e83SCatalin Marinas	bool
61a8655e83SCatalin Marinas	depends on GENERIC_CLOCKEVENTS
625388a6b2SRussell King	default y if SMP
63a8655e83SCatalin Marinas
64bc581770SLinus Walleijconfig HAVE_TCM
65bc581770SLinus Walleij	bool
66bc581770SLinus Walleij	select GENERIC_ALLOCATOR
67bc581770SLinus Walleij
68e119bfffSRussell Kingconfig HAVE_PROC_CPU
69e119bfffSRussell King	bool
70e119bfffSRussell King
715ea81769SAl Viroconfig NO_IOPORT
725ea81769SAl Viro	bool
735ea81769SAl Viro
741da177e4SLinus Torvaldsconfig EISA
751da177e4SLinus Torvalds	bool
761da177e4SLinus Torvalds	---help---
771da177e4SLinus Torvalds	  The Extended Industry Standard Architecture (EISA) bus was
781da177e4SLinus Torvalds	  developed as an open alternative to the IBM MicroChannel bus.
791da177e4SLinus Torvalds
801da177e4SLinus Torvalds	  The EISA bus provided some of the features of the IBM MicroChannel
811da177e4SLinus Torvalds	  bus while maintaining backward compatibility with cards made for
821da177e4SLinus Torvalds	  the older ISA bus.  The EISA bus saw limited use between 1988 and
831da177e4SLinus Torvalds	  1995 when it was made obsolete by the PCI bus.
841da177e4SLinus Torvalds
851da177e4SLinus Torvalds	  Say Y here if you are building a kernel for an EISA-based machine.
861da177e4SLinus Torvalds
871da177e4SLinus Torvalds	  Otherwise, say N.
881da177e4SLinus Torvalds
891da177e4SLinus Torvaldsconfig SBUS
901da177e4SLinus Torvalds	bool
911da177e4SLinus Torvalds
921da177e4SLinus Torvaldsconfig MCA
931da177e4SLinus Torvalds	bool
941da177e4SLinus Torvalds	help
951da177e4SLinus Torvalds	  MicroChannel Architecture is found in some IBM PS/2 machines and
961da177e4SLinus Torvalds	  laptops.  It is a bus system similar to PCI or ISA. See
971da177e4SLinus Torvalds	  <file:Documentation/mca.txt> (and especially the web page given
981da177e4SLinus Torvalds	  there) before attempting to build an MCA bus kernel.
991da177e4SLinus Torvalds
1004a2581a0SThomas Gleixnerconfig GENERIC_HARDIRQS
1014a2581a0SThomas Gleixner	bool
1024a2581a0SThomas Gleixner	default y
1034a2581a0SThomas Gleixner
104f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT
105f16fb1ecSRussell King	bool
106f16fb1ecSRussell King	default y
107f16fb1ecSRussell King
108f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT
109f76e9154SNicolas Pitre	bool
110f76e9154SNicolas Pitre	depends on !SMP
111f76e9154SNicolas Pitre	default y
112f76e9154SNicolas Pitre
113f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT
114f16fb1ecSRussell King	bool
115f16fb1ecSRussell King	default y
116f16fb1ecSRussell King
1177ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT
1187ad1bcb2SRussell King	bool
1197ad1bcb2SRussell King	default y
1207ad1bcb2SRussell King
1214a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND
1224a2581a0SThomas Gleixner	bool
1234a2581a0SThomas Gleixner	default y
1244a2581a0SThomas Gleixner
1254a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE
1264a2581a0SThomas Gleixner	bool
1274a2581a0SThomas Gleixner	default y
1284a2581a0SThomas Gleixner
12995c354feSNick Pigginconfig GENERIC_LOCKBREAK
13095c354feSNick Piggin	bool
13195c354feSNick Piggin	default y
13295c354feSNick Piggin	depends on SMP && PREEMPT
13395c354feSNick Piggin
1341da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK
1351da177e4SLinus Torvalds	bool
1361da177e4SLinus Torvalds	default y
1371da177e4SLinus Torvalds
1381da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM
1391da177e4SLinus Torvalds	bool
1401da177e4SLinus Torvalds
141f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32
142f0d1b0b3SDavid Howells	bool
143f0d1b0b3SDavid Howells
144f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64
145f0d1b0b3SDavid Howells	bool
146f0d1b0b3SDavid Howells
14789c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ
14889c52ed4SBen Dooks	bool
14989c52ed4SBen Dooks	help
15089c52ed4SBen Dooks	  Internal node to signify that the ARCH has CPUFREQ support
15189c52ed4SBen Dooks	  and that the relevant menu configurations are displayed for
15289c52ed4SBen Dooks	  it.
15389c52ed4SBen Dooks
154c7b0aff4SKevin Hilmanconfig ARCH_HAS_CPU_IDLE_WAIT
155c7b0aff4SKevin Hilman       def_bool y
156c7b0aff4SKevin Hilman
157b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT
158b89c3b16SAkinobu Mita	bool
159b89c3b16SAkinobu Mita	default y
160b89c3b16SAkinobu Mita
1611da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY
1621da177e4SLinus Torvalds	bool
1631da177e4SLinus Torvalds	default y
1641da177e4SLinus Torvalds
165a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC
166a08b6b79Sviro@ZenIV.linux.org.uk	bool
167a08b6b79Sviro@ZenIV.linux.org.uk
1685ac6da66SChristoph Lameterconfig ZONE_DMA
1695ac6da66SChristoph Lameter	bool
1705ac6da66SChristoph Lameter
171ccd7ab7fSFUJITA Tomonoriconfig NEED_DMA_MAP_STATE
172ccd7ab7fSFUJITA Tomonori       def_bool y
173ccd7ab7fSFUJITA Tomonori
1741da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA
1751da177e4SLinus Torvalds	bool
1761da177e4SLinus Torvalds
1771da177e4SLinus Torvaldsconfig FIQ
1781da177e4SLinus Torvalds	bool
1791da177e4SLinus Torvalds
180034d2f5aSAl Viroconfig ARCH_MTD_XIP
181034d2f5aSAl Viro	bool
182034d2f5aSAl Viro
18360a752efSPaulius Zaleckasconfig GENERIC_HARDIRQS_NO__DO_IRQ
18460a752efSPaulius Zaleckas	def_bool y
18560a752efSPaulius Zaleckas
186d6d502faSKukjin Kimconfig ARM_L1_CACHE_SHIFT_6
187d6d502faSKukjin Kim	bool
188d6d502faSKukjin Kim	help
189d6d502faSKukjin Kim	  Setting ARM L1 cache line size to 64 Bytes.
190d6d502faSKukjin Kim
191c760fc19SHyok S. Choiconfig VECTORS_BASE
192c760fc19SHyok S. Choi	hex
1936afd6faeSHyok S. Choi	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
194c760fc19SHyok S. Choi	default DRAM_BASE if REMAP_VECTORS_TO_RAM
195c760fc19SHyok S. Choi	default 0x00000000
196c760fc19SHyok S. Choi	help
197c760fc19SHyok S. Choi	  The base address of exception vectors.
198c760fc19SHyok S. Choi
1991da177e4SLinus Torvaldssource "init/Kconfig"
2001da177e4SLinus Torvalds
201dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer"
202dc52ddc0SMatt Helsley
2031da177e4SLinus Torvaldsmenu "System Type"
2041da177e4SLinus Torvalds
2053c427975SHyok S. Choiconfig MMU
2063c427975SHyok S. Choi	bool "MMU-based Paged Memory Management Support"
2073c427975SHyok S. Choi	default y
2083c427975SHyok S. Choi	help
2093c427975SHyok S. Choi	  Select if you want MMU-based virtualised addressing space
2103c427975SHyok S. Choi	  support by paged memory management. If unsure, say 'Y'.
2113c427975SHyok S. Choi
212ccf50e23SRussell King#
213ccf50e23SRussell King# The "ARM system type" choice list is ordered alphabetically by option
214ccf50e23SRussell King# text.  Please add new entries in the option alphabetic order.
215ccf50e23SRussell King#
2161da177e4SLinus Torvaldschoice
2171da177e4SLinus Torvalds	prompt "ARM system type"
2186a0e2430SCatalin Marinas	default ARCH_VERSATILE
2191da177e4SLinus Torvalds
2204af6fee1SDeepak Saxenaconfig ARCH_AAEC2000
2214af6fee1SDeepak Saxena	bool "Agilent AAEC-2000 based"
222c750815eSRussell King	select CPU_ARM920T
2234af6fee1SDeepak Saxena	select ARM_AMBA
2249483a578SDavid Brownell	select HAVE_CLK
2255cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
2264af6fee1SDeepak Saxena	help
2274af6fee1SDeepak Saxena	  This enables support for systems based on the Agilent AAEC-2000
2284af6fee1SDeepak Saxena
2294af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR
2304af6fee1SDeepak Saxena	bool "ARM Ltd. Integrator family"
2314af6fee1SDeepak Saxena	select ARM_AMBA
23289c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
2336d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
234c5a0adb5SRussell King	select ICST
23513edd86dSRussell King	select GENERIC_CLOCKEVENTS
236f4b8b319SRussell King	select PLAT_VERSATILE
2374af6fee1SDeepak Saxena	help
2384af6fee1SDeepak Saxena	  Support for ARM's Integrator platform.
2394af6fee1SDeepak Saxena
2404af6fee1SDeepak Saxenaconfig ARCH_REALVIEW
2414af6fee1SDeepak Saxena	bool "ARM Ltd. RealView family"
2424af6fee1SDeepak Saxena	select ARM_AMBA
2436d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
2441da0c89cSRussell King	select HAVE_SCHED_CLOCK
245c5a0adb5SRussell King	select ICST
246ae30ceacSCatalin Marinas	select GENERIC_CLOCKEVENTS
247eb7fffa3SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
248f4b8b319SRussell King	select PLAT_VERSATILE
249e3887714SRussell King	select ARM_TIMER_SP804
250b56ba8aaSColin Tuckley	select GPIO_PL061 if GPIOLIB
2514af6fee1SDeepak Saxena	help
2524af6fee1SDeepak Saxena	  This enables support for ARM Ltd RealView boards.
2534af6fee1SDeepak Saxena
2544af6fee1SDeepak Saxenaconfig ARCH_VERSATILE
2554af6fee1SDeepak Saxena	bool "ARM Ltd. Versatile family"
2564af6fee1SDeepak Saxena	select ARM_AMBA
2574af6fee1SDeepak Saxena	select ARM_VIC
2586d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
2591da0c89cSRussell King	select HAVE_SCHED_CLOCK
260c5a0adb5SRussell King	select ICST
26189df1272SKevin Hilman	select GENERIC_CLOCKEVENTS
262bbeddc43SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
263f4b8b319SRussell King	select PLAT_VERSATILE
264e3887714SRussell King	select ARM_TIMER_SP804
2654af6fee1SDeepak Saxena	help
2664af6fee1SDeepak Saxena	  This enables support for ARM Ltd Versatile board.
2674af6fee1SDeepak Saxena
268ceade897SRussell Kingconfig ARCH_VEXPRESS
269ceade897SRussell King	bool "ARM Ltd. Versatile Express family"
270ceade897SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
271ceade897SRussell King	select ARM_AMBA
272ceade897SRussell King	select ARM_TIMER_SP804
2736d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
274ceade897SRussell King	select GENERIC_CLOCKEVENTS
275ceade897SRussell King	select HAVE_CLK
2760af85ddaSRussell King	select HAVE_SCHED_CLOCK
277ceade897SRussell King	select ICST
278ceade897SRussell King	select PLAT_VERSATILE
279ceade897SRussell King	help
280ceade897SRussell King	  This enables support for the ARM Ltd Versatile Express boards.
281ceade897SRussell King
2828fc5ffa0SAndrew Victorconfig ARCH_AT91
2838fc5ffa0SAndrew Victor	bool "Atmel AT91"
284f373e8c0SRyan Mallon	select ARCH_REQUIRE_GPIOLIB
28593686ae8SDavid Brownell	select HAVE_CLK
2864af6fee1SDeepak Saxena	help
2872b3b3516SAndrew Victor	  This enables support for systems based on the Atmel AT91RM9200,
2882b3b3516SAndrew Victor	  AT91SAM9 and AT91CAP9 processors.
2894af6fee1SDeepak Saxena
290ccf50e23SRussell Kingconfig ARCH_BCMRING
291ccf50e23SRussell King	bool "Broadcom BCMRING"
292ccf50e23SRussell King	depends on MMU
293ccf50e23SRussell King	select CPU_V6
294ccf50e23SRussell King	select ARM_AMBA
2956d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
296ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
297ccf50e23SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
298ccf50e23SRussell King	help
299ccf50e23SRussell King	  Support for Broadcom's BCMRing platform.
300ccf50e23SRussell King
3011da177e4SLinus Torvaldsconfig ARCH_CLPS711X
3024af6fee1SDeepak Saxena	bool "Cirrus Logic CLPS711x/EP721x-based"
303c750815eSRussell King	select CPU_ARM720T
3045cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
305f999b8bdSMartin Michlmayr	help
306f999b8bdSMartin Michlmayr	  Support for Cirrus Logic 711x/721x based boards.
3071da177e4SLinus Torvalds
308d94f944eSAnton Vorontsovconfig ARCH_CNS3XXX
309d94f944eSAnton Vorontsov	bool "Cavium Networks CNS3XXX family"
310d94f944eSAnton Vorontsov	select CPU_V6
311d94f944eSAnton Vorontsov	select GENERIC_CLOCKEVENTS
312d94f944eSAnton Vorontsov	select ARM_GIC
3130b05da72SHans Ulli Kroll	select MIGHT_HAVE_PCI
3145f32f7a0SAnton Vorontsov	select PCI_DOMAINS if PCI
315d94f944eSAnton Vorontsov	help
316d94f944eSAnton Vorontsov	  Support for Cavium Networks CNS3XXX platform.
317d94f944eSAnton Vorontsov
318788c9700SRussell Kingconfig ARCH_GEMINI
319788c9700SRussell King	bool "Cortina Systems Gemini"
320788c9700SRussell King	select CPU_FA526
321788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
3225cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
323788c9700SRussell King	help
324788c9700SRussell King	  Support for the Cortina Systems Gemini family SoCs
325788c9700SRussell King
3261da177e4SLinus Torvaldsconfig ARCH_EBSA110
3271da177e4SLinus Torvalds	bool "EBSA-110"
328c750815eSRussell King	select CPU_SA110
329f7e68bbfSRussell King	select ISA
330c5eb2a2bSRussell King	select NO_IOPORT
3315cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
3321da177e4SLinus Torvalds	help
3331da177e4SLinus Torvalds	  This is an evaluation board for the StrongARM processor available
334f6c8965aSMartin Michlmayr	  from Digital. It has limited hardware on-board, including an
3351da177e4SLinus Torvalds	  Ethernet interface, two PCMCIA sockets, two serial ports and a
3361da177e4SLinus Torvalds	  parallel port.
3371da177e4SLinus Torvalds
338e7736d47SLennert Buytenhekconfig ARCH_EP93XX
339e7736d47SLennert Buytenhek	bool "EP93xx-based"
340c750815eSRussell King	select CPU_ARM920T
341e7736d47SLennert Buytenhek	select ARM_AMBA
342e7736d47SLennert Buytenhek	select ARM_VIC
3436d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
3447444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
345eb33575cSMel Gorman	select ARCH_HAS_HOLES_MEMORYMODEL
3465cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
347e7736d47SLennert Buytenhek	help
348e7736d47SLennert Buytenhek	  This enables support for the Cirrus EP93xx series of CPUs.
349e7736d47SLennert Buytenhek
3501da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE
3511da177e4SLinus Torvalds	bool "FootBridge"
352c750815eSRussell King	select CPU_SA110
3531da177e4SLinus Torvalds	select FOOTBRIDGE
3545cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
355f999b8bdSMartin Michlmayr	help
356f999b8bdSMartin Michlmayr	  Support for systems based on the DC21285 companion chip
357f999b8bdSMartin Michlmayr	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
3581da177e4SLinus Torvalds
359788c9700SRussell Kingconfig ARCH_MXC
360788c9700SRussell King	bool "Freescale MXC/iMX-based"
361788c9700SRussell King	select GENERIC_CLOCKEVENTS
362788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
3636d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
364788c9700SRussell King	help
365788c9700SRussell King	  Support for Freescale MXC/iMX-based family of processors
366788c9700SRussell King
3671d3f33d5SShawn Guoconfig ARCH_MXS
3681d3f33d5SShawn Guo	bool "Freescale MXS-based"
3691d3f33d5SShawn Guo	select GENERIC_CLOCKEVENTS
3701d3f33d5SShawn Guo	select ARCH_REQUIRE_GPIOLIB
3711d3f33d5SShawn Guo	select COMMON_CLKDEV
3721d3f33d5SShawn Guo	help
3731d3f33d5SShawn Guo	  Support for Freescale MXS-based family of processors
3741d3f33d5SShawn Guo
3757bd0f2f5Sdmitry pervushinconfig ARCH_STMP3XXX
3767bd0f2f5Sdmitry pervushin	bool "Freescale STMP3xxx"
3777bd0f2f5Sdmitry pervushin	select CPU_ARM926T
3786d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
3797bd0f2f5Sdmitry pervushin	select ARCH_REQUIRE_GPIOLIB
3807bd0f2f5Sdmitry pervushin	select GENERIC_CLOCKEVENTS
3817bd0f2f5Sdmitry pervushin	select USB_ARCH_HAS_EHCI
3827bd0f2f5Sdmitry pervushin	help
3837bd0f2f5Sdmitry pervushin	  Support for systems based on the Freescale 3xxx CPUs.
3847bd0f2f5Sdmitry pervushin
3854af6fee1SDeepak Saxenaconfig ARCH_NETX
3864af6fee1SDeepak Saxena	bool "Hilscher NetX based"
387c750815eSRussell King	select CPU_ARM926T
3884af6fee1SDeepak Saxena	select ARM_VIC
3892fcfe6b8SUwe Kleine-König	select GENERIC_CLOCKEVENTS
390f999b8bdSMartin Michlmayr	help
3914af6fee1SDeepak Saxena	  This enables support for systems based on the Hilscher NetX Soc
3924af6fee1SDeepak Saxena
3934af6fee1SDeepak Saxenaconfig ARCH_H720X
3944af6fee1SDeepak Saxena	bool "Hynix HMS720x-based"
395c750815eSRussell King	select CPU_ARM720T
3964af6fee1SDeepak Saxena	select ISA_DMA_API
3975cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
3984af6fee1SDeepak Saxena	help
3994af6fee1SDeepak Saxena	  This enables support for systems based on the Hynix HMS720x
4004af6fee1SDeepak Saxena
4013b938be6SRussell Kingconfig ARCH_IOP13XX
4023b938be6SRussell King	bool "IOP13xx-based"
4033b938be6SRussell King	depends on MMU
404c750815eSRussell King	select CPU_XSC3
4053b938be6SRussell King	select PLAT_IOP
4063b938be6SRussell King	select PCI
4073b938be6SRussell King	select ARCH_SUPPORTS_MSI
4088d5796d2SLennert Buytenhek	select VMSPLIT_1G
4093b938be6SRussell King	help
4103b938be6SRussell King	  Support for Intel's IOP13XX (XScale) family of processors.
4113b938be6SRussell King
4123f7e5815SLennert Buytenhekconfig ARCH_IOP32X
4133f7e5815SLennert Buytenhek	bool "IOP32x-based"
414a4f7e763SRussell King	depends on MMU
415c750815eSRussell King	select CPU_XSCALE
4167ae1f7ecSLennert Buytenhek	select PLAT_IOP
417f7e68bbfSRussell King	select PCI
418bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
419f999b8bdSMartin Michlmayr	help
4203f7e5815SLennert Buytenhek	  Support for Intel's 80219 and IOP32X (XScale) family of
4213f7e5815SLennert Buytenhek	  processors.
4223f7e5815SLennert Buytenhek
4233f7e5815SLennert Buytenhekconfig ARCH_IOP33X
4243f7e5815SLennert Buytenhek	bool "IOP33x-based"
4253f7e5815SLennert Buytenhek	depends on MMU
426c750815eSRussell King	select CPU_XSCALE
4277ae1f7ecSLennert Buytenhek	select PLAT_IOP
4283f7e5815SLennert Buytenhek	select PCI
429bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
4303f7e5815SLennert Buytenhek	help
4313f7e5815SLennert Buytenhek	  Support for Intel's IOP33X (XScale) family of processors.
4321da177e4SLinus Torvalds
4333b938be6SRussell Kingconfig ARCH_IXP23XX
4343b938be6SRussell King 	bool "IXP23XX-based"
435588ef769SDan Williams	depends on MMU
436c750815eSRussell King	select CPU_XSC3
437285f5fa7SDan Williams 	select PCI
4385cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
439285f5fa7SDan Williams	help
4403b938be6SRussell King	  Support for Intel's IXP23xx (XScale) family of processors.
4411da177e4SLinus Torvalds
4421da177e4SLinus Torvaldsconfig ARCH_IXP2000
4431da177e4SLinus Torvalds	bool "IXP2400/2800-based"
444a4f7e763SRussell King	depends on MMU
445c750815eSRussell King	select CPU_XSCALE
446f7e68bbfSRussell King	select PCI
4475cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
448f999b8bdSMartin Michlmayr	help
449f999b8bdSMartin Michlmayr	  Support for Intel's IXP2400/2800 (XScale) family of processors.
4501da177e4SLinus Torvalds
4513b938be6SRussell Kingconfig ARCH_IXP4XX
4523b938be6SRussell King	bool "IXP4xx-based"
453a4f7e763SRussell King	depends on MMU
454c750815eSRussell King	select CPU_XSCALE
4558858e9afSMilan Svoboda	select GENERIC_GPIO
4563b938be6SRussell King	select GENERIC_CLOCKEVENTS
4575b0d495cSRussell King	select HAVE_SCHED_CLOCK
4580b05da72SHans Ulli Kroll	select MIGHT_HAVE_PCI
459485bdde7SRussell King	select DMABOUNCE if PCI
460c4713074SLennert Buytenhek	help
4613b938be6SRussell King	  Support for Intel's IXP4XX (XScale) family of processors.
462c4713074SLennert Buytenhek
463edabd38eSSaeed Bisharaconfig ARCH_DOVE
464edabd38eSSaeed Bishara	bool "Marvell Dove"
465edabd38eSSaeed Bishara	select PCI
466edabd38eSSaeed Bishara	select ARCH_REQUIRE_GPIOLIB
467edabd38eSSaeed Bishara	select GENERIC_CLOCKEVENTS
468edabd38eSSaeed Bishara	select PLAT_ORION
469edabd38eSSaeed Bishara	help
470edabd38eSSaeed Bishara	  Support for the Marvell Dove SoC 88AP510
471edabd38eSSaeed Bishara
472651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD
473651c74c7SSaeed Bishara	bool "Marvell Kirkwood"
474c750815eSRussell King	select CPU_FEROCEON
475651c74c7SSaeed Bishara	select PCI
476a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
477651c74c7SSaeed Bishara	select GENERIC_CLOCKEVENTS
478651c74c7SSaeed Bishara	select PLAT_ORION
479651c74c7SSaeed Bishara	help
480651c74c7SSaeed Bishara	  Support for the following Marvell Kirkwood series SoCs:
481651c74c7SSaeed Bishara	  88F6180, 88F6192 and 88F6281.
482651c74c7SSaeed Bishara
483788c9700SRussell Kingconfig ARCH_LOKI
484788c9700SRussell King	bool "Marvell Loki (88RC8480)"
485788c9700SRussell King	select CPU_FEROCEON
486788c9700SRussell King	select GENERIC_CLOCKEVENTS
487788c9700SRussell King	select PLAT_ORION
488788c9700SRussell King	help
489788c9700SRussell King	  Support for the Marvell Loki (88RC8480) SoC.
490788c9700SRussell King
49140805949SKevin Wellsconfig ARCH_LPC32XX
49240805949SKevin Wells	bool "NXP LPC32XX"
49340805949SKevin Wells	select CPU_ARM926T
49440805949SKevin Wells	select ARCH_REQUIRE_GPIOLIB
49540805949SKevin Wells	select HAVE_IDE
49640805949SKevin Wells	select ARM_AMBA
49740805949SKevin Wells	select USB_ARCH_HAS_OHCI
4986d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
49940805949SKevin Wells	select GENERIC_TIME
50040805949SKevin Wells	select GENERIC_CLOCKEVENTS
50140805949SKevin Wells	help
50240805949SKevin Wells	  Support for the NXP LPC32XX family of processors
50340805949SKevin Wells
504788c9700SRussell Kingconfig ARCH_MV78XX0
505788c9700SRussell King	bool "Marvell MV78xx0"
506788c9700SRussell King	select CPU_FEROCEON
507788c9700SRussell King	select PCI
508a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
509788c9700SRussell King	select GENERIC_CLOCKEVENTS
510788c9700SRussell King	select PLAT_ORION
511788c9700SRussell King	help
512788c9700SRussell King	  Support for the following Marvell MV78xx0 series SoCs:
513788c9700SRussell King	  MV781x0, MV782x0.
514788c9700SRussell King
515788c9700SRussell Kingconfig ARCH_ORION5X
516788c9700SRussell King	bool "Marvell Orion"
517788c9700SRussell King	depends on MMU
518788c9700SRussell King	select CPU_FEROCEON
519788c9700SRussell King	select PCI
520a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
521788c9700SRussell King	select GENERIC_CLOCKEVENTS
522788c9700SRussell King	select PLAT_ORION
523788c9700SRussell King	help
524788c9700SRussell King	  Support for the following Marvell Orion 5x series SoCs:
525788c9700SRussell King	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
526788c9700SRussell King	  Orion-2 (5281), Orion-1-90 (6183).
527788c9700SRussell King
528788c9700SRussell Kingconfig ARCH_MMP
5292f7e8faeSHaojian Zhuang	bool "Marvell PXA168/910/MMP2"
530788c9700SRussell King	depends on MMU
531788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
5326d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
533788c9700SRussell King	select GENERIC_CLOCKEVENTS
53428bb7bc6SRussell King	select HAVE_SCHED_CLOCK
535788c9700SRussell King	select TICK_ONESHOT
536788c9700SRussell King	select PLAT_PXA
5370bd86961SHaojian Zhuang	select SPARSE_IRQ
538788c9700SRussell King	help
5392f7e8faeSHaojian Zhuang	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
540788c9700SRussell King
541c53c9cf6SAndrew Victorconfig ARCH_KS8695
542c53c9cf6SAndrew Victor	bool "Micrel/Kendin KS8695"
543c750815eSRussell King	select CPU_ARM922T
54472880ad8SDaniel Silverstone	select ARCH_REQUIRE_GPIOLIB
5455cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
546c53c9cf6SAndrew Victor	help
547c53c9cf6SAndrew Victor	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
548c53c9cf6SAndrew Victor	  System-on-Chip devices.
549c53c9cf6SAndrew Victor
5509918cda5SUwe Kleine-Königconfig ARCH_NS9XXX
5519918cda5SUwe Kleine-König	bool "NetSilicon NS9xxx"
552c750815eSRussell King	select CPU_ARM926T
553689f2a01SUwe Kleine-König	select GENERIC_GPIO
554c0bb87f7SUwe Kleine-König	select GENERIC_CLOCKEVENTS
5559483a578SDavid Brownell	select HAVE_CLK
5569918cda5SUwe Kleine-König	help
5579918cda5SUwe Kleine-König	  Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
5589918cda5SUwe Kleine-König	  System.
5599918cda5SUwe Kleine-König
5609918cda5SUwe Kleine-König	  <http://www.digi.com/products/microprocessors/index.jsp>
5619918cda5SUwe Kleine-König
562788c9700SRussell Kingconfig ARCH_W90X900
563788c9700SRussell King	bool "Nuvoton W90X900 CPU"
564788c9700SRussell King	select CPU_ARM926T
565c52d3d68Swanzongshun	select ARCH_REQUIRE_GPIOLIB
5666d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
56758b5369eSwanzongshun	select GENERIC_CLOCKEVENTS
568777f9bebSLennert Buytenhek	help
569a8bc4eadSwanzongshun	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
570a8bc4eadSwanzongshun	  At present, the w90x900 has been renamed nuc900, regarding
571a8bc4eadSwanzongshun	  the ARM series product line, you can login the following
572a8bc4eadSwanzongshun	  link address to know more.
573a8bc4eadSwanzongshun
574a8bc4eadSwanzongshun	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
575a8bc4eadSwanzongshun		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
576585cf175STzachi Perelstein
577a62e9030Swanzongshunconfig ARCH_NUC93X
578a62e9030Swanzongshun	bool "Nuvoton NUC93X CPU"
579a62e9030Swanzongshun	select CPU_ARM926T
5806d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
581a62e9030Swanzongshun	help
582a62e9030Swanzongshun	  Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
583a62e9030Swanzongshun	  low-power and high performance MPEG-4/JPEG multimedia controller chip.
584a62e9030Swanzongshun
585c5f80065SErik Gillingconfig ARCH_TEGRA
586c5f80065SErik Gilling	bool "NVIDIA Tegra"
5874073723aSRussell King	select CLKDEV_LOOKUP
588c5f80065SErik Gilling	select GENERIC_TIME
589c5f80065SErik Gilling	select GENERIC_CLOCKEVENTS
590c5f80065SErik Gilling	select GENERIC_GPIO
591c5f80065SErik Gilling	select HAVE_CLK
592e3f4c0abSRussell King	select HAVE_SCHED_CLOCK
593c5f80065SErik Gilling	select ARCH_HAS_BARRIERS if CACHE_L2X0
5947056d423SColin Cross	select ARCH_HAS_CPUFREQ
595c5f80065SErik Gilling	help
596c5f80065SErik Gilling	  This enables support for NVIDIA Tegra based systems (Tegra APX,
597c5f80065SErik Gilling	  Tegra 6xx and Tegra 2 series).
598c5f80065SErik Gilling
5994af6fee1SDeepak Saxenaconfig ARCH_PNX4008
6004af6fee1SDeepak Saxena	bool "Philips Nexperia PNX4008 Mobile"
601c750815eSRussell King	select CPU_ARM926T
6026d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
6035cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
6044af6fee1SDeepak Saxena	help
6054af6fee1SDeepak Saxena	  This enables support for Philips PNX4008 mobile platform.
6064af6fee1SDeepak Saxena
6071da177e4SLinus Torvaldsconfig ARCH_PXA
6082c8086a5Seric miao	bool "PXA2xx/PXA3xx-based"
609a4f7e763SRussell King	depends on MMU
610034d2f5aSAl Viro	select ARCH_MTD_XIP
61189c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
6126d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
6137444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
614981d0f39SEric Miao	select GENERIC_CLOCKEVENTS
6157ce83018SRussell King	select HAVE_SCHED_CLOCK
616a88264c2SRussell King	select TICK_ONESHOT
617bd5ce433SEric Miao	select PLAT_PXA
6186ac6b817SHaojian Zhuang	select SPARSE_IRQ
619f999b8bdSMartin Michlmayr	help
6202c8086a5Seric miao	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
6211da177e4SLinus Torvalds
622788c9700SRussell Kingconfig ARCH_MSM
623788c9700SRussell King	bool "Qualcomm MSM"
6244b536b8dSSteve Muckle	select HAVE_CLK
62549cbe786SEric Miao	select GENERIC_CLOCKEVENTS
626923a081cSPavel Machek	select ARCH_REQUIRE_GPIOLIB
62749cbe786SEric Miao	help
6284b53eb4fSDaniel Walker	  Support for Qualcomm MSM/QSD based systems.  This runs on the
6294b53eb4fSDaniel Walker	  apps processor of the MSM/QSD and depends on a shared memory
6304b53eb4fSDaniel Walker	  interface to the modem processor which runs the baseband
6314b53eb4fSDaniel Walker	  stack and controls some vital subsystems
6324b53eb4fSDaniel Walker	  (clock and power control, etc).
63349cbe786SEric Miao
634c793c1b0SMagnus Dammconfig ARCH_SHMOBILE
6356d72ad35SPaul Mundt	bool "Renesas SH-Mobile / R-Mobile"
6366d72ad35SPaul Mundt	select HAVE_CLK
6375e93c6b4SPaul Mundt	select CLKDEV_LOOKUP
6386d72ad35SPaul Mundt	select GENERIC_CLOCKEVENTS
6396d72ad35SPaul Mundt	select NO_IOPORT
6406d72ad35SPaul Mundt	select SPARSE_IRQ
641*60f1435cSMagnus Damm	select MULTI_IRQ_HANDLER
642c793c1b0SMagnus Damm	help
6436d72ad35SPaul Mundt	  Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
644c793c1b0SMagnus Damm
6451da177e4SLinus Torvaldsconfig ARCH_RPC
6461da177e4SLinus Torvalds	bool "RiscPC"
6471da177e4SLinus Torvalds	select ARCH_ACORN
6481da177e4SLinus Torvalds	select FIQ
6491da177e4SLinus Torvalds	select TIMER_ACORN
650a08b6b79Sviro@ZenIV.linux.org.uk	select ARCH_MAY_HAVE_PC_FDC
651341eb781SBen Dooks	select HAVE_PATA_PLATFORM
652065909b9SRussell King	select ISA_DMA_API
6535ea81769SAl Viro	select NO_IOPORT
65407f841b7SRussell King	select ARCH_SPARSEMEM_ENABLE
6555cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
6561da177e4SLinus Torvalds	help
6571da177e4SLinus Torvalds	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
6581da177e4SLinus Torvalds	  CD-ROM interface, serial and parallel port, and the floppy drive.
6591da177e4SLinus Torvalds
6601da177e4SLinus Torvaldsconfig ARCH_SA1100
6611da177e4SLinus Torvalds	bool "SA1100-based"
662c750815eSRussell King	select CPU_SA1100
663f7e68bbfSRussell King	select ISA
66405944d74SRussell King	select ARCH_SPARSEMEM_ENABLE
665034d2f5aSAl Viro	select ARCH_MTD_XIP
66689c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
6671937f5b9SRussell King	select CPU_FREQ
6683e238be2SRussell King	select GENERIC_CLOCKEVENTS
6699483a578SDavid Brownell	select HAVE_CLK
6705094b92fSRussell King	select HAVE_SCHED_CLOCK
6713e238be2SRussell King	select TICK_ONESHOT
6727444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
673f999b8bdSMartin Michlmayr	help
674f999b8bdSMartin Michlmayr	  Support for StrongARM 11x0 based boards.
6751da177e4SLinus Torvalds
6761da177e4SLinus Torvaldsconfig ARCH_S3C2410
67763b1f51bSBen Dooks	bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
6780a938b97SDavid Brownell	select GENERIC_GPIO
6799d56c02aSBen Dooks	select ARCH_HAS_CPUFREQ
6809483a578SDavid Brownell	select HAVE_CLK
6815cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
68220676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
6831da177e4SLinus Torvalds	help
6841da177e4SLinus Torvalds	  Samsung S3C2410X CPU based systems, such as the Simtec Electronics
6851da177e4SLinus Torvalds	  BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
686f6c8965aSMartin Michlmayr	  the Samsung SMDK2410 development board (and derivatives).
6871da177e4SLinus Torvalds
68863b1f51bSBen Dooks	  Note, the S3C2416 and the S3C2450 are so close that they even share
68963b1f51bSBen Dooks	  the same SoC ID code. This means that there is no seperate machine
69063b1f51bSBen Dooks	  directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
69163b1f51bSBen Dooks
692a08ab637SBen Dooksconfig ARCH_S3C64XX
693a08ab637SBen Dooks	bool "Samsung S3C64XX"
69489f1fa08SBen Dooks	select PLAT_SAMSUNG
69589f0ce72SBen Dooks	select CPU_V6
69689f0ce72SBen Dooks	select ARM_VIC
697a08ab637SBen Dooks	select HAVE_CLK
69889f0ce72SBen Dooks	select NO_IOPORT
6995cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
70089c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
70189f0ce72SBen Dooks	select ARCH_REQUIRE_GPIOLIB
70289f0ce72SBen Dooks	select SAMSUNG_CLKSRC
70389f0ce72SBen Dooks	select SAMSUNG_IRQ_VIC_TIMER
70489f0ce72SBen Dooks	select SAMSUNG_IRQ_UART
70589f0ce72SBen Dooks	select S3C_GPIO_TRACK
70689f0ce72SBen Dooks	select S3C_GPIO_PULL_UPDOWN
70789f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C24XX
70889f0ce72SBen Dooks	select S3C_GPIO_CFG_S3C64XX
70989f0ce72SBen Dooks	select S3C_DEV_NAND
71089f0ce72SBen Dooks	select USB_ARCH_HAS_OHCI
71189f0ce72SBen Dooks	select SAMSUNG_GPIOLIB_4BIT
71220676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
713c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
714a08ab637SBen Dooks	help
715a08ab637SBen Dooks	  Samsung S3C64XX series based systems
716a08ab637SBen Dooks
71749b7a491SKukjin Kimconfig ARCH_S5P64X0
71849b7a491SKukjin Kim	bool "Samsung S5P6440 S5P6450"
719c4ffccddSKukjin Kim	select CPU_V6
720c4ffccddSKukjin Kim	select GENERIC_GPIO
721c4ffccddSKukjin Kim	select HAVE_CLK
722c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
723925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
72420676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
725754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
726c4ffccddSKukjin Kim	help
72749b7a491SKukjin Kim	  Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
72849b7a491SKukjin Kim	  SMDK6450.
729c4ffccddSKukjin Kim
730550db7f1SKukjin Kimconfig ARCH_S5P6442
731550db7f1SKukjin Kim	bool "Samsung S5P6442"
732550db7f1SKukjin Kim	select CPU_V6
733550db7f1SKukjin Kim	select GENERIC_GPIO
734550db7f1SKukjin Kim	select HAVE_CLK
735925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
736c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
737550db7f1SKukjin Kim	help
738550db7f1SKukjin Kim	  Samsung S5P6442 CPU based systems
739550db7f1SKukjin Kim
740acc84707SMarek Szyprowskiconfig ARCH_S5PC100
741acc84707SMarek Szyprowski	bool "Samsung S5PC100"
7425a7652f2SByungho Min	select GENERIC_GPIO
7435a7652f2SByungho Min	select HAVE_CLK
7445a7652f2SByungho Min	select CPU_V7
745d6d502faSKukjin Kim	select ARM_L1_CACHE_SHIFT_6
746925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
74720676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
748754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
749c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
7505a7652f2SByungho Min	help
751acc84707SMarek Szyprowski	  Samsung S5PC100 series based systems
7525a7652f2SByungho Min
753170f4e42SKukjin Kimconfig ARCH_S5PV210
754170f4e42SKukjin Kim	bool "Samsung S5PV210/S5PC110"
755170f4e42SKukjin Kim	select CPU_V7
756eecb6a84SKyungmin Park	select ARCH_SPARSEMEM_ENABLE
757170f4e42SKukjin Kim	select GENERIC_GPIO
758170f4e42SKukjin Kim	select HAVE_CLK
759170f4e42SKukjin Kim	select ARM_L1_CACHE_SHIFT_6
760d8144aeaSJaecheol Lee	select ARCH_HAS_CPUFREQ
761925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
76220676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
763754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
764c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
765170f4e42SKukjin Kim	help
766170f4e42SKukjin Kim	  Samsung S5PV210/S5PC110 series based systems
767170f4e42SKukjin Kim
768cc0e72b8SChanghwan Younconfig ARCH_S5PV310
769cc0e72b8SChanghwan Youn	bool "Samsung S5PV310/S5PC210"
770cc0e72b8SChanghwan Youn	select CPU_V7
771f567fa6fSKyungmin Park	select ARCH_SPARSEMEM_ENABLE
772cc0e72b8SChanghwan Youn	select GENERIC_GPIO
773cc0e72b8SChanghwan Youn	select HAVE_CLK
774cc0e72b8SChanghwan Youn	select GENERIC_CLOCKEVENTS
775754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
77620676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
777c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
778cc0e72b8SChanghwan Youn	help
779cc0e72b8SChanghwan Youn	  Samsung S5PV310 series based systems
780cc0e72b8SChanghwan Youn
7811da177e4SLinus Torvaldsconfig ARCH_SHARK
7821da177e4SLinus Torvalds	bool "Shark"
783c750815eSRussell King	select CPU_SA110
784f7e68bbfSRussell King	select ISA
785f7e68bbfSRussell King	select ISA_DMA
7863bca103aSNicolas Pitre	select ZONE_DMA
787f7e68bbfSRussell King	select PCI
7885cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
789f999b8bdSMartin Michlmayr	help
790f999b8bdSMartin Michlmayr	  Support for the StrongARM based Digital DNARD machine, also known
791f999b8bdSMartin Michlmayr	  as "Shark" (<http://www.shark-linux.de/shark.html>).
7921da177e4SLinus Torvalds
79383ef3338SHans J. Kochconfig ARCH_TCC_926
79483ef3338SHans J. Koch	bool "Telechips TCC ARM926-based systems"
79583ef3338SHans J. Koch	select CPU_ARM926T
79683ef3338SHans J. Koch	select HAVE_CLK
7976d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
79883ef3338SHans J. Koch	select GENERIC_CLOCKEVENTS
79983ef3338SHans J. Koch	help
80083ef3338SHans J. Koch	  Support for Telechips TCC ARM926-based systems.
80183ef3338SHans J. Koch
8021da177e4SLinus Torvaldsconfig ARCH_LH7A40X
8031da177e4SLinus Torvalds	bool "Sharp LH7A40X"
804c750815eSRussell King	select CPU_ARM922T
8054ba3f7c5SRussell King	select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
8065cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
8071da177e4SLinus Torvalds	help
8081da177e4SLinus Torvalds	  Say Y here for systems based on one of the Sharp LH7A40X
8091da177e4SLinus Torvalds	  System on a Chip processors.  These CPUs include an ARM922T
8101da177e4SLinus Torvalds	  core with a wide array of integrated devices for
8111da177e4SLinus Torvalds	  hand-held and low-power applications.
8121da177e4SLinus Torvalds
813d98aac75SLinus Walleijconfig ARCH_U300
814d98aac75SLinus Walleij	bool "ST-Ericsson U300 Series"
815d98aac75SLinus Walleij	depends on MMU
816d98aac75SLinus Walleij	select CPU_ARM926T
8175c21b7caSRussell King	select HAVE_SCHED_CLOCK
818bc581770SLinus Walleij	select HAVE_TCM
819d98aac75SLinus Walleij	select ARM_AMBA
820d98aac75SLinus Walleij	select ARM_VIC
821d98aac75SLinus Walleij	select GENERIC_CLOCKEVENTS
8226d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
823d98aac75SLinus Walleij	select GENERIC_GPIO
824d98aac75SLinus Walleij	help
825d98aac75SLinus Walleij	  Support for ST-Ericsson U300 series mobile platforms.
826d98aac75SLinus Walleij
827ccf50e23SRussell Kingconfig ARCH_U8500
828ccf50e23SRussell King	bool "ST-Ericsson U8500 Series"
829ccf50e23SRussell King	select CPU_V7
830ccf50e23SRussell King	select ARM_AMBA
831ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
8326d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
83394bdc0e2SRabin Vincent	select ARCH_REQUIRE_GPIOLIB
8347c1a70e9SMartin Persson	select ARCH_HAS_CPUFREQ
835ccf50e23SRussell King	help
836ccf50e23SRussell King	  Support for ST-Ericsson's Ux500 architecture
837ccf50e23SRussell King
838ccf50e23SRussell Kingconfig ARCH_NOMADIK
839ccf50e23SRussell King	bool "STMicroelectronics Nomadik"
840ccf50e23SRussell King	select ARM_AMBA
841ccf50e23SRussell King	select ARM_VIC
842ccf50e23SRussell King	select CPU_ARM926T
8436d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
844ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
845ccf50e23SRussell King	select ARCH_REQUIRE_GPIOLIB
846ccf50e23SRussell King	help
847ccf50e23SRussell King	  Support for the Nomadik platform by ST-Ericsson
848ccf50e23SRussell King
8497c6337e2SKevin Hilmanconfig ARCH_DAVINCI
8507c6337e2SKevin Hilman	bool "TI DaVinci"
8517c6337e2SKevin Hilman	select GENERIC_CLOCKEVENTS
852dce1115bSDavid Brownell	select ARCH_REQUIRE_GPIOLIB
8533bca103aSNicolas Pitre	select ZONE_DMA
8549232fcc9SKevin Hilman	select HAVE_IDE
8556d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
85620e9969bSDavid Brownell	select GENERIC_ALLOCATOR
857ae88e05aSSekhar Nori	select ARCH_HAS_HOLES_MEMORYMODEL
8587c6337e2SKevin Hilman	help
8597c6337e2SKevin Hilman	  Support for TI's DaVinci platform.
8607c6337e2SKevin Hilman
8613b938be6SRussell Kingconfig ARCH_OMAP
8623b938be6SRussell King	bool "TI OMAP"
8639483a578SDavid Brownell	select HAVE_CLK
8647444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
86589c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
86606cad098SKevin Hilman	select GENERIC_CLOCKEVENTS
867dc548fbbSRussell King	select HAVE_SCHED_CLOCK
8689af915daSSriram	select ARCH_HAS_HOLES_MEMORYMODEL
8693b938be6SRussell King	help
8706e457bb0SLennert Buytenhek	  Support for TI's OMAP platform (OMAP1/2/3/4).
8713b938be6SRussell King
872cee37e50Sviresh kumarconfig PLAT_SPEAR
873cee37e50Sviresh kumar	bool "ST SPEAr"
874cee37e50Sviresh kumar	select ARM_AMBA
875cee37e50Sviresh kumar	select ARCH_REQUIRE_GPIOLIB
8766d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
877cee37e50Sviresh kumar	select GENERIC_CLOCKEVENTS
878cee37e50Sviresh kumar	select HAVE_CLK
879cee37e50Sviresh kumar	help
880cee37e50Sviresh kumar	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
881cee37e50Sviresh kumar
8821da177e4SLinus Torvaldsendchoice
8831da177e4SLinus Torvalds
884ccf50e23SRussell King#
885ccf50e23SRussell King# This is sorted alphabetically by mach-* pathname.  However, plat-*
886ccf50e23SRussell King# Kconfigs may be included either alphabetically (according to the
887ccf50e23SRussell King# plat- suffix) or along side the corresponding mach-* source.
888ccf50e23SRussell King#
88995b8f20fSRussell Kingsource "arch/arm/mach-aaec2000/Kconfig"
89095b8f20fSRussell King
89195b8f20fSRussell Kingsource "arch/arm/mach-at91/Kconfig"
89295b8f20fSRussell King
89395b8f20fSRussell Kingsource "arch/arm/mach-bcmring/Kconfig"
89495b8f20fSRussell King
8951da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig"
8961da177e4SLinus Torvalds
897d94f944eSAnton Vorontsovsource "arch/arm/mach-cns3xxx/Kconfig"
898d94f944eSAnton Vorontsov
89995b8f20fSRussell Kingsource "arch/arm/mach-davinci/Kconfig"
90095b8f20fSRussell King
90195b8f20fSRussell Kingsource "arch/arm/mach-dove/Kconfig"
90295b8f20fSRussell King
903e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig"
904e7736d47SLennert Buytenhek
9051da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig"
9061da177e4SLinus Torvalds
90759d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig"
90859d3a193SPaulius Zaleckas
90995b8f20fSRussell Kingsource "arch/arm/mach-h720x/Kconfig"
91095b8f20fSRussell King
9111da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig"
9121da177e4SLinus Torvalds
9133f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig"
9143f7e5815SLennert Buytenhek
9153f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig"
9161da177e4SLinus Torvalds
917285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig"
918285f5fa7SDan Williams
9191da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig"
9201da177e4SLinus Torvalds
9211da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig"
9221da177e4SLinus Torvalds
923c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig"
924c4713074SLennert Buytenhek
92595b8f20fSRussell Kingsource "arch/arm/mach-kirkwood/Kconfig"
92695b8f20fSRussell King
92795b8f20fSRussell Kingsource "arch/arm/mach-ks8695/Kconfig"
92895b8f20fSRussell King
92995b8f20fSRussell Kingsource "arch/arm/mach-lh7a40x/Kconfig"
93095b8f20fSRussell King
931777f9bebSLennert Buytenheksource "arch/arm/mach-loki/Kconfig"
932777f9bebSLennert Buytenhek
93340805949SKevin Wellssource "arch/arm/mach-lpc32xx/Kconfig"
93440805949SKevin Wells
93595b8f20fSRussell Kingsource "arch/arm/mach-msm/Kconfig"
93695b8f20fSRussell King
937794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig"
938794d15b2SStanislav Samsonov
93995b8f20fSRussell Kingsource "arch/arm/plat-mxc/Kconfig"
9401da177e4SLinus Torvalds
9411d3f33d5SShawn Guosource "arch/arm/mach-mxs/Kconfig"
9421d3f33d5SShawn Guo
94395b8f20fSRussell Kingsource "arch/arm/mach-netx/Kconfig"
94449cbe786SEric Miao
94595b8f20fSRussell Kingsource "arch/arm/mach-nomadik/Kconfig"
94695b8f20fSRussell Kingsource "arch/arm/plat-nomadik/Kconfig"
94795b8f20fSRussell King
94895b8f20fSRussell Kingsource "arch/arm/mach-ns9xxx/Kconfig"
9491da177e4SLinus Torvalds
950d91a8910SRussell Kingsource "arch/arm/mach-nuc93x/Kconfig"
951d91a8910SRussell King
952d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig"
953d48af15eSTony Lindgren
954d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig"
9551da177e4SLinus Torvalds
9561dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig"
9571dbae815STony Lindgren
9589dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig"
959585cf175STzachi Perelstein
96095b8f20fSRussell Kingsource "arch/arm/mach-pxa/Kconfig"
96195b8f20fSRussell Kingsource "arch/arm/plat-pxa/Kconfig"
9621da177e4SLinus Torvalds
96395b8f20fSRussell Kingsource "arch/arm/mach-mmp/Kconfig"
96495b8f20fSRussell King
96595b8f20fSRussell Kingsource "arch/arm/mach-realview/Kconfig"
96695b8f20fSRussell King
96795b8f20fSRussell Kingsource "arch/arm/mach-sa1100/Kconfig"
968edabd38eSSaeed Bishara
969cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig"
970a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig"
971c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig"
972a21765a7SBen Dooks
973cee37e50Sviresh kumarsource "arch/arm/plat-spear/Kconfig"
974a21765a7SBen Dooks
97583ef3338SHans J. Kochsource "arch/arm/plat-tcc/Kconfig"
97683ef3338SHans J. Koch
977a21765a7SBen Dooksif ARCH_S3C2410
978a21765a7SBen Dookssource "arch/arm/mach-s3c2400/Kconfig"
9791da177e4SLinus Torvaldssource "arch/arm/mach-s3c2410/Kconfig"
980a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig"
981f1290a49SYauhen Kharuzhysource "arch/arm/mach-s3c2416/Kconfig"
982a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig"
983e4d06e39SBen Dookssource "arch/arm/mach-s3c2443/Kconfig"
984a21765a7SBen Dooksendif
9851da177e4SLinus Torvalds
986a08ab637SBen Dooksif ARCH_S3C64XX
987431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig"
988a08ab637SBen Dooksendif
989a08ab637SBen Dooks
99049b7a491SKukjin Kimsource "arch/arm/mach-s5p64x0/Kconfig"
991c4ffccddSKukjin Kim
992550db7f1SKukjin Kimsource "arch/arm/mach-s5p6442/Kconfig"
9937bd0f2f5Sdmitry pervushin
9945a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig"
9955a7652f2SByungho Min
996170f4e42SKukjin Kimsource "arch/arm/mach-s5pv210/Kconfig"
997170f4e42SKukjin Kim
998cc0e72b8SChanghwan Younsource "arch/arm/mach-s5pv310/Kconfig"
999cc0e72b8SChanghwan Youn
1000882d01f9SRussell Kingsource "arch/arm/mach-shmobile/Kconfig"
10011da177e4SLinus Torvalds
1002882d01f9SRussell Kingsource "arch/arm/plat-stmp3xxx/Kconfig"
10039e73c84cSBrian Swetland
1004c5f80065SErik Gillingsource "arch/arm/mach-tegra/Kconfig"
1005c5f80065SErik Gilling
100695b8f20fSRussell Kingsource "arch/arm/mach-u300/Kconfig"
100752c543f9SQuinn Jensen
100895b8f20fSRussell Kingsource "arch/arm/mach-ux500/Kconfig"
10091da177e4SLinus Torvalds
10101da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig"
10111da177e4SLinus Torvalds
1012ceade897SRussell Kingsource "arch/arm/mach-vexpress/Kconfig"
1013ceade897SRussell King
10147ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig"
10157ec80ddfSwanzongshun
10161da177e4SLinus Torvalds# Definitions to make life easier
10171da177e4SLinus Torvaldsconfig ARCH_ACORN
10181da177e4SLinus Torvalds	bool
10191da177e4SLinus Torvalds
10207ae1f7ecSLennert Buytenhekconfig PLAT_IOP
10217ae1f7ecSLennert Buytenhek	bool
1022469d3044SMikael Pettersson	select GENERIC_CLOCKEVENTS
102308f26b1eSRussell King	select HAVE_SCHED_CLOCK
10247ae1f7ecSLennert Buytenhek
102569b02f6aSLennert Buytenhekconfig PLAT_ORION
102669b02f6aSLennert Buytenhek	bool
1027f06a1624SRussell King	select HAVE_SCHED_CLOCK
102869b02f6aSLennert Buytenhek
1029bd5ce433SEric Miaoconfig PLAT_PXA
1030bd5ce433SEric Miao	bool
1031bd5ce433SEric Miao
1032f4b8b319SRussell Kingconfig PLAT_VERSATILE
1033f4b8b319SRussell King	bool
1034f4b8b319SRussell King
1035e3887714SRussell Kingconfig ARM_TIMER_SP804
1036e3887714SRussell King	bool
1037e3887714SRussell King
10381da177e4SLinus Torvaldssource arch/arm/mm/Kconfig
10391da177e4SLinus Torvalds
1040afe4b25eSLennert Buytenhekconfig IWMMXT
1041afe4b25eSLennert Buytenhek	bool "Enable iWMMXt support"
1042ef6c8445SHaojian Zhuang	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1043ef6c8445SHaojian Zhuang	default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
1044afe4b25eSLennert Buytenhek	help
1045afe4b25eSLennert Buytenhek	  Enable support for iWMMXt context switching at run time if
1046afe4b25eSLennert Buytenhek	  running on a CPU that supports it.
1047afe4b25eSLennert Buytenhek
10481da177e4SLinus Torvalds#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
10491da177e4SLinus Torvaldsconfig XSCALE_PMU
10501da177e4SLinus Torvalds	bool
10511da177e4SLinus Torvalds	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
10521da177e4SLinus Torvalds	default y
10531da177e4SLinus Torvalds
10540f4f0672SJamie Ilesconfig CPU_HAS_PMU
10558954bb0dSWill Deacon	depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
10568954bb0dSWill Deacon		   (!ARCH_OMAP3 || OMAP3_EMU)
10570f4f0672SJamie Iles	default y
10580f4f0672SJamie Iles	bool
10590f4f0672SJamie Iles
106052108641Seric miaoconfig MULTI_IRQ_HANDLER
106152108641Seric miao	bool
106252108641Seric miao	help
106352108641Seric miao	  Allow each machine to specify it's own IRQ handler at run time.
106452108641Seric miao
10653b93e7b0SHyok S. Choiif !MMU
10663b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu"
10673b93e7b0SHyok S. Choiendif
10683b93e7b0SHyok S. Choi
10699cba3cccSCatalin Marinasconfig ARM_ERRATA_411920
10709cba3cccSCatalin Marinas	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
107181d11955STony Lindgren	depends on CPU_V6
10729cba3cccSCatalin Marinas	help
10739cba3cccSCatalin Marinas	  Invalidation of the Instruction Cache operation can
10749cba3cccSCatalin Marinas	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
10759cba3cccSCatalin Marinas	  It does not affect the MPCore. This option enables the ARM Ltd.
10769cba3cccSCatalin Marinas	  recommended workaround.
10779cba3cccSCatalin Marinas
10787ce236fcSCatalin Marinasconfig ARM_ERRATA_430973
10797ce236fcSCatalin Marinas	bool "ARM errata: Stale prediction on replaced interworking branch"
10807ce236fcSCatalin Marinas	depends on CPU_V7
10817ce236fcSCatalin Marinas	help
10827ce236fcSCatalin Marinas	  This option enables the workaround for the 430973 Cortex-A8
10837ce236fcSCatalin Marinas	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
10847ce236fcSCatalin Marinas	  interworking branch is replaced with another code sequence at the
10857ce236fcSCatalin Marinas	  same virtual address, whether due to self-modifying code or virtual
10867ce236fcSCatalin Marinas	  to physical address re-mapping, Cortex-A8 does not recover from the
10877ce236fcSCatalin Marinas	  stale interworking branch prediction. This results in Cortex-A8
10887ce236fcSCatalin Marinas	  executing the new code sequence in the incorrect ARM or Thumb state.
10897ce236fcSCatalin Marinas	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
10907ce236fcSCatalin Marinas	  and also flushes the branch target cache at every context switch.
10917ce236fcSCatalin Marinas	  Note that setting specific bits in the ACTLR register may not be
10927ce236fcSCatalin Marinas	  available in non-secure mode.
10937ce236fcSCatalin Marinas
1094855c551fSCatalin Marinasconfig ARM_ERRATA_458693
1095855c551fSCatalin Marinas	bool "ARM errata: Processor deadlock when a false hazard is created"
1096855c551fSCatalin Marinas	depends on CPU_V7
1097855c551fSCatalin Marinas	help
1098855c551fSCatalin Marinas	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1099855c551fSCatalin Marinas	  erratum. For very specific sequences of memory operations, it is
1100855c551fSCatalin Marinas	  possible for a hazard condition intended for a cache line to instead
1101855c551fSCatalin Marinas	  be incorrectly associated with a different cache line. This false
1102855c551fSCatalin Marinas	  hazard might then cause a processor deadlock. The workaround enables
1103855c551fSCatalin Marinas	  the L1 caching of the NEON accesses and disables the PLD instruction
1104855c551fSCatalin Marinas	  in the ACTLR register. Note that setting specific bits in the ACTLR
1105855c551fSCatalin Marinas	  register may not be available in non-secure mode.
1106855c551fSCatalin Marinas
11070516e464SCatalin Marinasconfig ARM_ERRATA_460075
11080516e464SCatalin Marinas	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
11090516e464SCatalin Marinas	depends on CPU_V7
11100516e464SCatalin Marinas	help
11110516e464SCatalin Marinas	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
11120516e464SCatalin Marinas	  erratum. Any asynchronous access to the L2 cache may encounter a
11130516e464SCatalin Marinas	  situation in which recent store transactions to the L2 cache are lost
11140516e464SCatalin Marinas	  and overwritten with stale memory contents from external memory. The
11150516e464SCatalin Marinas	  workaround disables the write-allocate mode for the L2 cache via the
11160516e464SCatalin Marinas	  ACTLR register. Note that setting specific bits in the ACTLR register
11170516e464SCatalin Marinas	  may not be available in non-secure mode.
11180516e464SCatalin Marinas
11199f05027cSWill Deaconconfig ARM_ERRATA_742230
11209f05027cSWill Deacon	bool "ARM errata: DMB operation may be faulty"
11219f05027cSWill Deacon	depends on CPU_V7 && SMP
11229f05027cSWill Deacon	help
11239f05027cSWill Deacon	  This option enables the workaround for the 742230 Cortex-A9
11249f05027cSWill Deacon	  (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
11259f05027cSWill Deacon	  between two write operations may not ensure the correct visibility
11269f05027cSWill Deacon	  ordering of the two writes. This workaround sets a specific bit in
11279f05027cSWill Deacon	  the diagnostic register of the Cortex-A9 which causes the DMB
11289f05027cSWill Deacon	  instruction to behave as a DSB, ensuring the correct behaviour of
11299f05027cSWill Deacon	  the two writes.
11309f05027cSWill Deacon
1131a672e99bSWill Deaconconfig ARM_ERRATA_742231
1132a672e99bSWill Deacon	bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1133a672e99bSWill Deacon	depends on CPU_V7 && SMP
1134a672e99bSWill Deacon	help
1135a672e99bSWill Deacon	  This option enables the workaround for the 742231 Cortex-A9
1136a672e99bSWill Deacon	  (r2p0..r2p2) erratum. Under certain conditions, specific to the
1137a672e99bSWill Deacon	  Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1138a672e99bSWill Deacon	  accessing some data located in the same cache line, may get corrupted
1139a672e99bSWill Deacon	  data due to bad handling of the address hazard when the line gets
1140a672e99bSWill Deacon	  replaced from one of the CPUs at the same time as another CPU is
1141a672e99bSWill Deacon	  accessing it. This workaround sets specific bits in the diagnostic
1142a672e99bSWill Deacon	  register of the Cortex-A9 which reduces the linefill issuing
1143a672e99bSWill Deacon	  capabilities of the processor.
1144a672e99bSWill Deacon
11459e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369
11469e65582aSSantosh Shilimkar	bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
11479e65582aSSantosh Shilimkar	depends on CACHE_L2X0 && ARCH_OMAP4
11489e65582aSSantosh Shilimkar	help
11499e65582aSSantosh Shilimkar	   The PL310 L2 cache controller implements three types of Clean &
11509e65582aSSantosh Shilimkar	   Invalidate maintenance operations: by Physical Address
11519e65582aSSantosh Shilimkar	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
11529e65582aSSantosh Shilimkar	   They are architecturally defined to behave as the execution of a
11539e65582aSSantosh Shilimkar	   clean operation followed immediately by an invalidate operation,
11549e65582aSSantosh Shilimkar	   both performing to the same memory location. This functionality
11559e65582aSSantosh Shilimkar	   is not correctly implemented in PL310 as clean lines are not
11569e65582aSSantosh Shilimkar	   invalidated as a result of these operations. Note that this errata
11579e65582aSSantosh Shilimkar	   uses Texas Instrument's secure monitor api.
1158cdf357f1SWill Deacon
1159cdf357f1SWill Deaconconfig ARM_ERRATA_720789
1160cdf357f1SWill Deacon	bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1161cdf357f1SWill Deacon	depends on CPU_V7 && SMP
1162cdf357f1SWill Deacon	help
1163cdf357f1SWill Deacon	  This option enables the workaround for the 720789 Cortex-A9 (prior to
1164cdf357f1SWill Deacon	  r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1165cdf357f1SWill Deacon	  broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1166cdf357f1SWill Deacon	  As a consequence of this erratum, some TLB entries which should be
1167cdf357f1SWill Deacon	  invalidated are not, resulting in an incoherency in the system page
1168cdf357f1SWill Deacon	  tables. The workaround changes the TLB flushing routines to invalidate
1169cdf357f1SWill Deacon	  entries regardless of the ASID.
1170475d92fcSWill Deacon
1171475d92fcSWill Deaconconfig ARM_ERRATA_743622
1172475d92fcSWill Deacon	bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1173475d92fcSWill Deacon	depends on CPU_V7
1174475d92fcSWill Deacon	help
1175475d92fcSWill Deacon	  This option enables the workaround for the 743622 Cortex-A9
1176475d92fcSWill Deacon	  (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1177475d92fcSWill Deacon	  optimisation in the Cortex-A9 Store Buffer may lead to data
1178475d92fcSWill Deacon	  corruption. This workaround sets a specific bit in the diagnostic
1179475d92fcSWill Deacon	  register of the Cortex-A9 which disables the Store Buffer
1180475d92fcSWill Deacon	  optimisation, preventing the defect from occurring. This has no
1181475d92fcSWill Deacon	  visible impact on the overall performance or power consumption of the
1182475d92fcSWill Deacon	  processor.
1183475d92fcSWill Deacon
11841da177e4SLinus Torvaldsendmenu
11851da177e4SLinus Torvalds
11861da177e4SLinus Torvaldssource "arch/arm/common/Kconfig"
11871da177e4SLinus Torvalds
11881da177e4SLinus Torvaldsmenu "Bus support"
11891da177e4SLinus Torvalds
11901da177e4SLinus Torvaldsconfig ARM_AMBA
11911da177e4SLinus Torvalds	bool
11921da177e4SLinus Torvalds
11931da177e4SLinus Torvaldsconfig ISA
11941da177e4SLinus Torvalds	bool
11951da177e4SLinus Torvalds	help
11961da177e4SLinus Torvalds	  Find out whether you have ISA slots on your motherboard.  ISA is the
11971da177e4SLinus Torvalds	  name of a bus system, i.e. the way the CPU talks to the other stuff
11981da177e4SLinus Torvalds	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
11991da177e4SLinus Torvalds	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
12001da177e4SLinus Torvalds	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
12011da177e4SLinus Torvalds
1202065909b9SRussell King# Select ISA DMA controller support
12031da177e4SLinus Torvaldsconfig ISA_DMA
12041da177e4SLinus Torvalds	bool
1205065909b9SRussell King	select ISA_DMA_API
12061da177e4SLinus Torvalds
1207065909b9SRussell King# Select ISA DMA interface
12085cae841bSAl Viroconfig ISA_DMA_API
12095cae841bSAl Viro	bool
12105cae841bSAl Viro
12111da177e4SLinus Torvaldsconfig PCI
12120b05da72SHans Ulli Kroll	bool "PCI support" if MIGHT_HAVE_PCI
12131da177e4SLinus Torvalds	help
12141da177e4SLinus Torvalds	  Find out whether you have a PCI motherboard. PCI is the name of a
12151da177e4SLinus Torvalds	  bus system, i.e. the way the CPU talks to the other stuff inside
12161da177e4SLinus Torvalds	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
12171da177e4SLinus Torvalds	  VESA. If you have PCI, say Y, otherwise N.
12181da177e4SLinus Torvalds
121952882173SAnton Vorontsovconfig PCI_DOMAINS
122052882173SAnton Vorontsov	bool
122152882173SAnton Vorontsov	depends on PCI
122252882173SAnton Vorontsov
1223b080ac8aSMarcelo Roberto Jimenezconfig PCI_NANOENGINE
1224b080ac8aSMarcelo Roberto Jimenez	bool "BSE nanoEngine PCI support"
1225b080ac8aSMarcelo Roberto Jimenez	depends on SA1100_NANOENGINE
1226b080ac8aSMarcelo Roberto Jimenez	help
1227b080ac8aSMarcelo Roberto Jimenez	  Enable PCI on the BSE nanoEngine board.
1228b080ac8aSMarcelo Roberto Jimenez
122936e23590SMatthew Wilcoxconfig PCI_SYSCALL
123036e23590SMatthew Wilcox	def_bool PCI
123136e23590SMatthew Wilcox
12321da177e4SLinus Torvalds# Select the host bridge type
12331da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505
12341da177e4SLinus Torvalds	bool
12351da177e4SLinus Torvalds	depends on PCI && ARCH_SHARK
12361da177e4SLinus Torvalds	default y
12371da177e4SLinus Torvalds
1238a0113a99SMike Rapoportconfig PCI_HOST_ITE8152
1239a0113a99SMike Rapoport	bool
1240a0113a99SMike Rapoport	depends on PCI && MACH_ARMCORE
1241a0113a99SMike Rapoport	default y
1242a0113a99SMike Rapoport	select DMABOUNCE
1243a0113a99SMike Rapoport
12441da177e4SLinus Torvaldssource "drivers/pci/Kconfig"
12451da177e4SLinus Torvalds
12461da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig"
12471da177e4SLinus Torvalds
12481da177e4SLinus Torvaldsendmenu
12491da177e4SLinus Torvalds
12501da177e4SLinus Torvaldsmenu "Kernel Features"
12511da177e4SLinus Torvalds
12520567a0c0SKevin Hilmansource "kernel/time/Kconfig"
12530567a0c0SKevin Hilman
12541da177e4SLinus Torvaldsconfig SMP
12551da177e4SLinus Torvalds	bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1256971acb9bSRussell King	depends on EXPERIMENTAL
1257bc28248eSRussell King	depends on GENERIC_CLOCKEVENTS
1258971acb9bSRussell King	depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
1259971acb9bSRussell King		 MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
126089c3dedfSDaniel Walker		 ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
126189c3dedfSDaniel Walker		 ARCH_MSM_SCORPIONMP
1262f6dd9fa5SJens Axboe	select USE_GENERIC_SMP_HELPERS
126389c3dedfSDaniel Walker	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
12641da177e4SLinus Torvalds	help
12651da177e4SLinus Torvalds	  This enables support for systems with more than one CPU. If you have
12661da177e4SLinus Torvalds	  a system with only one CPU, like most personal computers, say N. If
12671da177e4SLinus Torvalds	  you have a system with more than one CPU, say Y.
12681da177e4SLinus Torvalds
12691da177e4SLinus Torvalds	  If you say N here, the kernel will run on single and multiprocessor
12701da177e4SLinus Torvalds	  machines, but will use only one CPU of a multiprocessor machine. If
12711da177e4SLinus Torvalds	  you say Y here, the kernel will run on many, but not all, single
12721da177e4SLinus Torvalds	  processor machines. On a single processor machine, the kernel will
12731da177e4SLinus Torvalds	  run faster if you say N here.
12741da177e4SLinus Torvalds
127503502faaSAdrian Bunk	  See also <file:Documentation/i386/IO-APIC.txt>,
12761da177e4SLinus Torvalds	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
127750a23e6eSJustin P. Mattock	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
12781da177e4SLinus Torvalds
12791da177e4SLinus Torvalds	  If you don't know what to do here, say N.
12801da177e4SLinus Torvalds
1281f00ec48fSRussell Kingconfig SMP_ON_UP
1282f00ec48fSRussell King	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1283f00ec48fSRussell King	depends on EXPERIMENTAL
1284ed3768a8SDave Martin	depends on SMP && !XIP
1285f00ec48fSRussell King	default y
1286f00ec48fSRussell King	help
1287f00ec48fSRussell King	  SMP kernels contain instructions which fail on non-SMP processors.
1288f00ec48fSRussell King	  Enabling this option allows the kernel to modify itself to make
1289f00ec48fSRussell King	  these instructions safe.  Disabling it allows about 1K of space
1290f00ec48fSRussell King	  savings.
1291f00ec48fSRussell King
1292f00ec48fSRussell King	  If you don't know what to do here, say Y.
1293f00ec48fSRussell King
1294a8cbcd92SRussell Kingconfig HAVE_ARM_SCU
1295a8cbcd92SRussell King	bool
1296a8cbcd92SRussell King	depends on SMP
1297a8cbcd92SRussell King	help
1298a8cbcd92SRussell King	  This option enables support for the ARM system coherency unit
1299a8cbcd92SRussell King
1300f32f4ce2SRussell Kingconfig HAVE_ARM_TWD
1301f32f4ce2SRussell King	bool
1302f32f4ce2SRussell King	depends on SMP
130315095bb0SRussell King	select TICK_ONESHOT
1304f32f4ce2SRussell King	help
1305f32f4ce2SRussell King	  This options enables support for the ARM timer and watchdog unit
1306f32f4ce2SRussell King
13078d5796d2SLennert Buytenhekchoice
13088d5796d2SLennert Buytenhek	prompt "Memory split"
13098d5796d2SLennert Buytenhek	default VMSPLIT_3G
13108d5796d2SLennert Buytenhek	help
13118d5796d2SLennert Buytenhek	  Select the desired split between kernel and user memory.
13128d5796d2SLennert Buytenhek
13138d5796d2SLennert Buytenhek	  If you are not absolutely sure what you are doing, leave this
13148d5796d2SLennert Buytenhek	  option alone!
13158d5796d2SLennert Buytenhek
13168d5796d2SLennert Buytenhek	config VMSPLIT_3G
13178d5796d2SLennert Buytenhek		bool "3G/1G user/kernel split"
13188d5796d2SLennert Buytenhek	config VMSPLIT_2G
13198d5796d2SLennert Buytenhek		bool "2G/2G user/kernel split"
13208d5796d2SLennert Buytenhek	config VMSPLIT_1G
13218d5796d2SLennert Buytenhek		bool "1G/3G user/kernel split"
13228d5796d2SLennert Buytenhekendchoice
13238d5796d2SLennert Buytenhek
13248d5796d2SLennert Buytenhekconfig PAGE_OFFSET
13258d5796d2SLennert Buytenhek	hex
13268d5796d2SLennert Buytenhek	default 0x40000000 if VMSPLIT_1G
13278d5796d2SLennert Buytenhek	default 0x80000000 if VMSPLIT_2G
13288d5796d2SLennert Buytenhek	default 0xC0000000
13298d5796d2SLennert Buytenhek
13301da177e4SLinus Torvaldsconfig NR_CPUS
13311da177e4SLinus Torvalds	int "Maximum number of CPUs (2-32)"
13321da177e4SLinus Torvalds	range 2 32
13331da177e4SLinus Torvalds	depends on SMP
13341da177e4SLinus Torvalds	default "4"
13351da177e4SLinus Torvalds
1336a054a811SRussell Kingconfig HOTPLUG_CPU
1337a054a811SRussell King	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1338a054a811SRussell King	depends on SMP && HOTPLUG && EXPERIMENTAL
1339176bfc44SDaniel Walker	depends on !ARCH_MSM
1340a054a811SRussell King	help
1341a054a811SRussell King	  Say Y here to experiment with turning CPUs off and on.  CPUs
1342a054a811SRussell King	  can be controlled through /sys/devices/system/cpu.
1343a054a811SRussell King
134437ee16aeSRussell Kingconfig LOCAL_TIMERS
134537ee16aeSRussell King	bool "Use local timer interrupts"
1346971acb9bSRussell King	depends on SMP
134737ee16aeSRussell King	default y
134889c3dedfSDaniel Walker	select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
134937ee16aeSRussell King	help
135037ee16aeSRussell King	  Enable support for local timers on SMP platforms, rather then the
135137ee16aeSRussell King	  legacy IPI broadcast method.  Local timers allows the system
135237ee16aeSRussell King	  accounting to be spread across the timer interval, preventing a
135337ee16aeSRussell King	  "thundering herd" at every timer tick.
135437ee16aeSRussell King
1355d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt
13561da177e4SLinus Torvalds
1357f8065813SRussell Kingconfig HZ
1358f8065813SRussell King	int
135949b7a491SKukjin Kim	default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
13602192482eSRussell King		ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
1361bfe65704SRussell King	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
13625248c657SDavid Brownell	default AT91_TIMER_HZ if ARCH_AT91
13635da3e714SMagnus Damm	default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
1364f8065813SRussell King	default 100
1365f8065813SRussell King
136616c79651SCatalin Marinasconfig THUMB2_KERNEL
13674a50bfe3SRussell King	bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
13686e6fc998SDave Martin	depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
136916c79651SCatalin Marinas	select AEABI
137016c79651SCatalin Marinas	select ARM_ASM_UNIFIED
137116c79651SCatalin Marinas	help
137216c79651SCatalin Marinas	  By enabling this option, the kernel will be compiled in
137316c79651SCatalin Marinas	  Thumb-2 mode. A compiler/assembler that understand the unified
137416c79651SCatalin Marinas	  ARM-Thumb syntax is needed.
137516c79651SCatalin Marinas
137616c79651SCatalin Marinas	  If unsure, say N.
137716c79651SCatalin Marinas
13780becb088SCatalin Marinasconfig ARM_ASM_UNIFIED
13790becb088SCatalin Marinas	bool
13800becb088SCatalin Marinas
1381704bdda0SNicolas Pitreconfig AEABI
1382704bdda0SNicolas Pitre	bool "Use the ARM EABI to compile the kernel"
1383704bdda0SNicolas Pitre	help
1384704bdda0SNicolas Pitre	  This option allows for the kernel to be compiled using the latest
1385704bdda0SNicolas Pitre	  ARM ABI (aka EABI).  This is only useful if you are using a user
1386704bdda0SNicolas Pitre	  space environment that is also compiled with EABI.
1387704bdda0SNicolas Pitre
1388704bdda0SNicolas Pitre	  Since there are major incompatibilities between the legacy ABI and
1389704bdda0SNicolas Pitre	  EABI, especially with regard to structure member alignment, this
1390704bdda0SNicolas Pitre	  option also changes the kernel syscall calling convention to
1391704bdda0SNicolas Pitre	  disambiguate both ABIs and allow for backward compatibility support
1392704bdda0SNicolas Pitre	  (selected with CONFIG_OABI_COMPAT).
1393704bdda0SNicolas Pitre
1394704bdda0SNicolas Pitre	  To use this you need GCC version 4.0.0 or later.
1395704bdda0SNicolas Pitre
13966c90c872SNicolas Pitreconfig OABI_COMPAT
1397a73a3ff1SRussell King	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
139861c484d4SNicolas Pitre	depends on AEABI && EXPERIMENTAL
13996c90c872SNicolas Pitre	default y
14006c90c872SNicolas Pitre	help
14016c90c872SNicolas Pitre	  This option preserves the old syscall interface along with the
14026c90c872SNicolas Pitre	  new (ARM EABI) one. It also provides a compatibility layer to
14036c90c872SNicolas Pitre	  intercept syscalls that have structure arguments which layout
14046c90c872SNicolas Pitre	  in memory differs between the legacy ABI and the new ARM EABI
14056c90c872SNicolas Pitre	  (only for non "thumb" binaries). This option adds a tiny
14066c90c872SNicolas Pitre	  overhead to all syscalls and produces a slightly larger kernel.
14076c90c872SNicolas Pitre	  If you know you'll be using only pure EABI user space then you
14086c90c872SNicolas Pitre	  can say N here. If this option is not selected and you attempt
14096c90c872SNicolas Pitre	  to execute a legacy ABI binary then the result will be
14106c90c872SNicolas Pitre	  UNPREDICTABLE (in fact it can be predicted that it won't work
14116c90c872SNicolas Pitre	  at all). If in doubt say Y.
14126c90c872SNicolas Pitre
1413eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL
1414e80d6a24SMel Gorman	bool
1415e80d6a24SMel Gorman
141605944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE
141705944d74SRussell King	bool
141805944d74SRussell King
141907a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT
142007a2f737SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
142107a2f737SRussell King
142205944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL
1423be370302SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
1424c80d79d7SYasunori Goto
1425053a96caSNicolas Pitreconfig HIGHMEM
1426053a96caSNicolas Pitre	bool "High Memory Support (EXPERIMENTAL)"
1427053a96caSNicolas Pitre	depends on MMU && EXPERIMENTAL
1428053a96caSNicolas Pitre	help
1429053a96caSNicolas Pitre	  The address space of ARM processors is only 4 Gigabytes large
1430053a96caSNicolas Pitre	  and it has to accommodate user address space, kernel address
1431053a96caSNicolas Pitre	  space as well as some memory mapped IO. That means that, if you
1432053a96caSNicolas Pitre	  have a large amount of physical memory and/or IO, not all of the
1433053a96caSNicolas Pitre	  memory can be "permanently mapped" by the kernel. The physical
1434053a96caSNicolas Pitre	  memory that is not permanently mapped is called "high memory".
1435053a96caSNicolas Pitre
1436053a96caSNicolas Pitre	  Depending on the selected kernel/user memory split, minimum
1437053a96caSNicolas Pitre	  vmalloc space and actual amount of RAM, you may not need this
1438053a96caSNicolas Pitre	  option which should result in a slightly faster kernel.
1439053a96caSNicolas Pitre
1440053a96caSNicolas Pitre	  If unsure, say n.
1441053a96caSNicolas Pitre
144265cec8e3SRussell Kingconfig HIGHPTE
144365cec8e3SRussell King	bool "Allocate 2nd-level pagetables from highmem"
144465cec8e3SRussell King	depends on HIGHMEM
144565cec8e3SRussell King	depends on !OUTER_CACHE
144665cec8e3SRussell King
14471b8873a0SJamie Ilesconfig HW_PERF_EVENTS
14481b8873a0SJamie Iles	bool "Enable hardware performance counter support for perf events"
1449fe166148SWill Deacon	depends on PERF_EVENTS && CPU_HAS_PMU
14501b8873a0SJamie Iles	default y
14511b8873a0SJamie Iles	help
14521b8873a0SJamie Iles	  Enable hardware performance counter support for perf events. If
14531b8873a0SJamie Iles	  disabled, perf events will use software events only.
14541b8873a0SJamie Iles
1455354e6f72Seric miaoconfig SPARSE_IRQ
1456c1ba6ba3Seric miao	def_bool n
1457354e6f72Seric miao	help
1458354e6f72Seric miao	  This enables support for sparse irqs. This is useful in general
1459354e6f72Seric miao	  as most CPUs have a fairly sparse array of IRQ vectors, which
1460354e6f72Seric miao	  the irq_desc then maps directly on to. Systems with a high
1461354e6f72Seric miao	  number of off-chip IRQs will want to treat this as
1462354e6f72Seric miao	  experimental until they have been independently verified.
1463354e6f72Seric miao
14643f22ab27SDave Hansensource "mm/Kconfig"
14653f22ab27SDave Hansen
1466c1b2d970SMagnus Dammconfig FORCE_MAX_ZONEORDER
1467c1b2d970SMagnus Damm	int "Maximum zone order" if ARCH_SHMOBILE
1468c1b2d970SMagnus Damm	range 11 64 if ARCH_SHMOBILE
1469c1b2d970SMagnus Damm	default "9" if SA1111
1470c1b2d970SMagnus Damm	default "11"
1471c1b2d970SMagnus Damm	help
1472c1b2d970SMagnus Damm	  The kernel memory allocator divides physically contiguous memory
1473c1b2d970SMagnus Damm	  blocks into "zones", where each zone is a power of two number of
1474c1b2d970SMagnus Damm	  pages.  This option selects the largest power of two that the kernel
1475c1b2d970SMagnus Damm	  keeps in the memory allocator.  If you need to allocate very large
1476c1b2d970SMagnus Damm	  blocks of physically contiguous memory, then you may need to
1477c1b2d970SMagnus Damm	  increase this value.
1478c1b2d970SMagnus Damm
1479c1b2d970SMagnus Damm	  This config option is actually maximum order plus one. For example,
1480c1b2d970SMagnus Damm	  a value of 11 means that the largest free memory block is 2^10 pages.
1481c1b2d970SMagnus Damm
14821da177e4SLinus Torvaldsconfig LEDS
14831da177e4SLinus Torvalds	bool "Timer and CPU usage LEDs"
1484e055d5bfSAdrian Bunk	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
14858c8fdbc9SSascha Hauer		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
14861da177e4SLinus Torvalds		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
14871da177e4SLinus Torvalds		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
148873a59c1cSSAN People		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
148925329671SJürgen Schindele		   ARCH_AT91 || ARCH_DAVINCI || \
1490ff3042fbSColin Tuckley		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
14911da177e4SLinus Torvalds	help
14921da177e4SLinus Torvalds	  If you say Y here, the LEDs on your machine will be used
14931da177e4SLinus Torvalds	  to provide useful information about your current system status.
14941da177e4SLinus Torvalds
14951da177e4SLinus Torvalds	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
14961da177e4SLinus Torvalds	  be able to select which LEDs are active using the options below. If
14971da177e4SLinus Torvalds	  you are compiling a kernel for the EBSA-110 or the LART however, the
14981da177e4SLinus Torvalds	  red LED will simply flash regularly to indicate that the system is
14991da177e4SLinus Torvalds	  still functional. It is safe to say Y here if you have a CATS
15001da177e4SLinus Torvalds	  system, but the driver will do nothing.
15011da177e4SLinus Torvalds
15021da177e4SLinus Torvaldsconfig LEDS_TIMER
15031da177e4SLinus Torvalds	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1504eebdf7d7SDavid Brownell			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1505eebdf7d7SDavid Brownell			    || MACH_OMAP_PERSEUS2
15061da177e4SLinus Torvalds	depends on LEDS
15070567a0c0SKevin Hilman	depends on !GENERIC_CLOCKEVENTS
15081da177e4SLinus Torvalds	default y if ARCH_EBSA110
15091da177e4SLinus Torvalds	help
15101da177e4SLinus Torvalds	  If you say Y here, one of the system LEDs (the green one on the
15111da177e4SLinus Torvalds	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
15121da177e4SLinus Torvalds	  will flash regularly to indicate that the system is still
15131da177e4SLinus Torvalds	  operational. This is mainly useful to kernel hackers who are
15141da177e4SLinus Torvalds	  debugging unstable kernels.
15151da177e4SLinus Torvalds
15161da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
15171da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
15181da177e4SLinus Torvalds	  will overrule the CPU usage LED.
15191da177e4SLinus Torvalds
15201da177e4SLinus Torvaldsconfig LEDS_CPU
15211da177e4SLinus Torvalds	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1522eebdf7d7SDavid Brownell			!ARCH_OMAP) \
1523eebdf7d7SDavid Brownell			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1524eebdf7d7SDavid Brownell			|| MACH_OMAP_PERSEUS2
15251da177e4SLinus Torvalds	depends on LEDS
15261da177e4SLinus Torvalds	help
15271da177e4SLinus Torvalds	  If you say Y here, the red LED will be used to give a good real
15281da177e4SLinus Torvalds	  time indication of CPU usage, by lighting whenever the idle task
15291da177e4SLinus Torvalds	  is not currently executing.
15301da177e4SLinus Torvalds
15311da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
15321da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
15331da177e4SLinus Torvalds	  will overrule the CPU usage LED.
15341da177e4SLinus Torvalds
15351da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP
15361da177e4SLinus Torvalds	bool
1537f12d0d7cSHyok S. Choi	depends on CPU_CP15_MMU
15381da177e4SLinus Torvalds	default y if !ARCH_EBSA110
1539e119bfffSRussell King	select HAVE_PROC_CPU if PROC_FS
15401da177e4SLinus Torvalds	help
15411da177e4SLinus Torvalds	  ARM processors cannot fetch/store information which is not
15421da177e4SLinus Torvalds	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
15431da177e4SLinus Torvalds	  address divisible by 4. On 32-bit ARM processors, these non-aligned
15441da177e4SLinus Torvalds	  fetch/store instructions will be emulated in software if you say
15451da177e4SLinus Torvalds	  here, which has a severe performance impact. This is necessary for
15461da177e4SLinus Torvalds	  correct operation of some network protocols. With an IP-only
15471da177e4SLinus Torvalds	  configuration it is safe to say N, otherwise say Y.
15481da177e4SLinus Torvalds
154939ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY
155039ec58f3SLennert Buytenhek	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
155139ec58f3SLennert Buytenhek	depends on MMU && EXPERIMENTAL
155239ec58f3SLennert Buytenhek	default y if CPU_FEROCEON
155339ec58f3SLennert Buytenhek	help
155439ec58f3SLennert Buytenhek	  Implement faster copy_to_user and clear_user methods for CPU
155539ec58f3SLennert Buytenhek	  cores where a 8-word STM instruction give significantly higher
155639ec58f3SLennert Buytenhek	  memory write throughput than a sequence of individual 32bit stores.
155739ec58f3SLennert Buytenhek
155839ec58f3SLennert Buytenhek	  A possible side effect is a slight increase in scheduling latency
155939ec58f3SLennert Buytenhek	  between threads sharing the same address space if they invoke
156039ec58f3SLennert Buytenhek	  such copy operations with large buffers.
156139ec58f3SLennert Buytenhek
156239ec58f3SLennert Buytenhek	  However, if the CPU data cache is using a write-allocate mode,
156339ec58f3SLennert Buytenhek	  this option is unlikely to provide any performance gain.
156439ec58f3SLennert Buytenhek
156570c70d97SNicolas Pitreconfig SECCOMP
156670c70d97SNicolas Pitre	bool
156770c70d97SNicolas Pitre	prompt "Enable seccomp to safely compute untrusted bytecode"
156870c70d97SNicolas Pitre	---help---
156970c70d97SNicolas Pitre	  This kernel feature is useful for number crunching applications
157070c70d97SNicolas Pitre	  that may need to compute untrusted bytecode during their
157170c70d97SNicolas Pitre	  execution. By using pipes or other transports made available to
157270c70d97SNicolas Pitre	  the process as file descriptors supporting the read/write
157370c70d97SNicolas Pitre	  syscalls, it's possible to isolate those applications in
157470c70d97SNicolas Pitre	  their own address space using seccomp. Once seccomp is
157570c70d97SNicolas Pitre	  enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
157670c70d97SNicolas Pitre	  and the task is only allowed to execute a few safe syscalls
157770c70d97SNicolas Pitre	  defined by each seccomp mode.
157870c70d97SNicolas Pitre
1579c743f380SNicolas Pitreconfig CC_STACKPROTECTOR
1580c743f380SNicolas Pitre	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
15814a50bfe3SRussell King	depends on EXPERIMENTAL
1582c743f380SNicolas Pitre	help
1583c743f380SNicolas Pitre	  This option turns on the -fstack-protector GCC feature. This
1584c743f380SNicolas Pitre	  feature puts, at the beginning of functions, a canary value on
1585c743f380SNicolas Pitre	  the stack just before the return address, and validates
1586c743f380SNicolas Pitre	  the value just before actually returning.  Stack based buffer
1587c743f380SNicolas Pitre	  overflows (that need to overwrite this return address) now also
1588c743f380SNicolas Pitre	  overwrite the canary, which gets detected and the attack is then
1589c743f380SNicolas Pitre	  neutralized via a kernel panic.
1590c743f380SNicolas Pitre	  This feature requires gcc version 4.2 or above.
1591c743f380SNicolas Pitre
159273a65b3fSUwe Kleine-Königconfig DEPRECATED_PARAM_STRUCT
159373a65b3fSUwe Kleine-König	bool "Provide old way to pass kernel parameters"
159473a65b3fSUwe Kleine-König	help
159573a65b3fSUwe Kleine-König	  This was deprecated in 2001 and announced to live on for 5 years.
159673a65b3fSUwe Kleine-König	  Some old boot loaders still use this way.
159773a65b3fSUwe Kleine-König
15981da177e4SLinus Torvaldsendmenu
15991da177e4SLinus Torvalds
16001da177e4SLinus Torvaldsmenu "Boot options"
16011da177e4SLinus Torvalds
16021da177e4SLinus Torvalds# Compressed boot loader in ROM.  Yes, we really want to ask about
16031da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files.
16041da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT
16051da177e4SLinus Torvalds	hex "Compressed ROM boot loader base address"
16061da177e4SLinus Torvalds	default "0"
16071da177e4SLinus Torvalds	help
16081da177e4SLinus Torvalds	  The physical address at which the ROM-able zImage is to be
16091da177e4SLinus Torvalds	  placed in the target.  Platforms which normally make use of
16101da177e4SLinus Torvalds	  ROM-able zImage formats normally set this to a suitable
16111da177e4SLinus Torvalds	  value in their defconfig file.
16121da177e4SLinus Torvalds
16131da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
16141da177e4SLinus Torvalds
16151da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS
16161da177e4SLinus Torvalds	hex "Compressed ROM boot loader BSS address"
16171da177e4SLinus Torvalds	default "0"
16181da177e4SLinus Torvalds	help
1619f8c440b2SDan Fandrich	  The base address of an area of read/write memory in the target
1620f8c440b2SDan Fandrich	  for the ROM-able zImage which must be available while the
1621f8c440b2SDan Fandrich	  decompressor is running. It must be large enough to hold the
1622f8c440b2SDan Fandrich	  entire decompressed kernel plus an additional 128 KiB.
1623f8c440b2SDan Fandrich	  Platforms which normally make use of ROM-able zImage formats
1624f8c440b2SDan Fandrich	  normally set this to a suitable value in their defconfig file.
16251da177e4SLinus Torvalds
16261da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
16271da177e4SLinus Torvalds
16281da177e4SLinus Torvaldsconfig ZBOOT_ROM
16291da177e4SLinus Torvalds	bool "Compressed boot loader in ROM/flash"
16301da177e4SLinus Torvalds	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
16311da177e4SLinus Torvalds	help
16321da177e4SLinus Torvalds	  Say Y here if you intend to execute your compressed kernel image
16331da177e4SLinus Torvalds	  (zImage) directly from ROM or flash.  If unsure, say N.
16341da177e4SLinus Torvalds
16351da177e4SLinus Torvaldsconfig CMDLINE
16361da177e4SLinus Torvalds	string "Default kernel command string"
16371da177e4SLinus Torvalds	default ""
16381da177e4SLinus Torvalds	help
16391da177e4SLinus Torvalds	  On some architectures (EBSA110 and CATS), there is currently no way
16401da177e4SLinus Torvalds	  for the boot loader to pass arguments to the kernel. For these
16411da177e4SLinus Torvalds	  architectures, you should supply some command-line options at build
16421da177e4SLinus Torvalds	  time by entering them here. As a minimum, you should specify the
16431da177e4SLinus Torvalds	  memory size and the root device (e.g., mem=64M root=/dev/nfs).
16441da177e4SLinus Torvalds
164592d2040dSAlexander Hollerconfig CMDLINE_FORCE
164692d2040dSAlexander Holler	bool "Always use the default kernel command string"
164792d2040dSAlexander Holler	depends on CMDLINE != ""
164892d2040dSAlexander Holler	help
164992d2040dSAlexander Holler	  Always use the default kernel command string, even if the boot
165092d2040dSAlexander Holler	  loader passes other arguments to the kernel.
165192d2040dSAlexander Holler	  This is useful if you cannot or don't want to change the
165292d2040dSAlexander Holler	  command-line options your boot loader passes to the kernel.
165392d2040dSAlexander Holler
165492d2040dSAlexander Holler	  If unsure, say N.
165592d2040dSAlexander Holler
16561da177e4SLinus Torvaldsconfig XIP_KERNEL
16571da177e4SLinus Torvalds	bool "Kernel Execute-In-Place from ROM"
16581da177e4SLinus Torvalds	depends on !ZBOOT_ROM
16591da177e4SLinus Torvalds	help
16601da177e4SLinus Torvalds	  Execute-In-Place allows the kernel to run from non-volatile storage
16611da177e4SLinus Torvalds	  directly addressable by the CPU, such as NOR flash. This saves RAM
16621da177e4SLinus Torvalds	  space since the text section of the kernel is not loaded from flash
16631da177e4SLinus Torvalds	  to RAM.  Read-write sections, such as the data section and stack,
16641da177e4SLinus Torvalds	  are still copied to RAM.  The XIP kernel is not compressed since
16651da177e4SLinus Torvalds	  it has to run directly from flash, so it will take more space to
16661da177e4SLinus Torvalds	  store it.  The flash address used to link the kernel object files,
16671da177e4SLinus Torvalds	  and for storing it, is configuration dependent. Therefore, if you
16681da177e4SLinus Torvalds	  say Y here, you must know the proper physical address where to
16691da177e4SLinus Torvalds	  store the kernel image depending on your own flash memory usage.
16701da177e4SLinus Torvalds
16711da177e4SLinus Torvalds	  Also note that the make target becomes "make xipImage" rather than
16721da177e4SLinus Torvalds	  "make zImage" or "make Image".  The final kernel binary to put in
16731da177e4SLinus Torvalds	  ROM memory will be arch/arm/boot/xipImage.
16741da177e4SLinus Torvalds
16751da177e4SLinus Torvalds	  If unsure, say N.
16761da177e4SLinus Torvalds
16771da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR
16781da177e4SLinus Torvalds	hex "XIP Kernel Physical Location"
16791da177e4SLinus Torvalds	depends on XIP_KERNEL
16801da177e4SLinus Torvalds	default "0x00080000"
16811da177e4SLinus Torvalds	help
16821da177e4SLinus Torvalds	  This is the physical address in your flash memory the kernel will
16831da177e4SLinus Torvalds	  be linked for and stored to.  This address is dependent on your
16841da177e4SLinus Torvalds	  own flash usage.
16851da177e4SLinus Torvalds
1686c587e4a6SRichard Purdieconfig KEXEC
1687c587e4a6SRichard Purdie	bool "Kexec system call (EXPERIMENTAL)"
1688c587e4a6SRichard Purdie	depends on EXPERIMENTAL
1689c587e4a6SRichard Purdie	help
1690c587e4a6SRichard Purdie	  kexec is a system call that implements the ability to shutdown your
1691c587e4a6SRichard Purdie	  current kernel, and to start another kernel.  It is like a reboot
169201dd2fbfSMatt LaPlante	  but it is independent of the system firmware.   And like a reboot
1693c587e4a6SRichard Purdie	  you can start any kernel with it, not just Linux.
1694c587e4a6SRichard Purdie
1695c587e4a6SRichard Purdie	  It is an ongoing process to be certain the hardware in a machine
1696c587e4a6SRichard Purdie	  is properly shutdown, so do not be surprised if this code does not
1697c587e4a6SRichard Purdie	  initially work for you.  It may help to enable device hotplugging
1698c587e4a6SRichard Purdie	  support.
1699c587e4a6SRichard Purdie
17004cd9d6f7SRichard Purdieconfig ATAGS_PROC
17014cd9d6f7SRichard Purdie	bool "Export atags in procfs"
1702b98d7291SUli Luckas	depends on KEXEC
1703b98d7291SUli Luckas	default y
17044cd9d6f7SRichard Purdie	help
17054cd9d6f7SRichard Purdie	  Should the atags used to boot the kernel be exported in an "atags"
17064cd9d6f7SRichard Purdie	  file in procfs. Useful with kexec.
17074cd9d6f7SRichard Purdie
1708cb5d39b3SMika Westerbergconfig CRASH_DUMP
1709cb5d39b3SMika Westerberg	bool "Build kdump crash kernel (EXPERIMENTAL)"
1710cb5d39b3SMika Westerberg	depends on EXPERIMENTAL
1711cb5d39b3SMika Westerberg	help
1712cb5d39b3SMika Westerberg	  Generate crash dump after being started by kexec. This should
1713cb5d39b3SMika Westerberg	  be normally only set in special crash dump kernels which are
1714cb5d39b3SMika Westerberg	  loaded in the main kernel with kexec-tools into a specially
1715cb5d39b3SMika Westerberg	  reserved region and then later executed after a crash by
1716cb5d39b3SMika Westerberg	  kdump/kexec. The crash dump kernel must be compiled to a
1717cb5d39b3SMika Westerberg	  memory address not used by the main kernel
1718cb5d39b3SMika Westerberg
1719cb5d39b3SMika Westerberg	  For more details see Documentation/kdump/kdump.txt
1720cb5d39b3SMika Westerberg
1721e69edc79SEric Miaoconfig AUTO_ZRELADDR
1722e69edc79SEric Miao	bool "Auto calculation of the decompressed kernel image address"
1723e69edc79SEric Miao	depends on !ZBOOT_ROM && !ARCH_U300
1724e69edc79SEric Miao	help
1725e69edc79SEric Miao	  ZRELADDR is the physical address where the decompressed kernel
1726e69edc79SEric Miao	  image will be placed. If AUTO_ZRELADDR is selected, the address
1727e69edc79SEric Miao	  will be determined at run-time by masking the current IP with
1728e69edc79SEric Miao	  0xf8000000. This assumes the zImage being placed in the first 128MB
1729e69edc79SEric Miao	  from start of memory.
1730e69edc79SEric Miao
17311da177e4SLinus Torvaldsendmenu
17321da177e4SLinus Torvalds
1733ac9d7efcSRussell Kingmenu "CPU Power Management"
17341da177e4SLinus Torvalds
173589c52ed4SBen Dooksif ARCH_HAS_CPUFREQ
17361da177e4SLinus Torvalds
17371da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig"
17381da177e4SLinus Torvalds
173964f102b6SYong Shenconfig CPU_FREQ_IMX
174064f102b6SYong Shen	tristate "CPUfreq driver for i.MX CPUs"
174164f102b6SYong Shen	depends on ARCH_MXC && CPU_FREQ
174264f102b6SYong Shen	help
174364f102b6SYong Shen	  This enables the CPUfreq driver for i.MX CPUs.
174464f102b6SYong Shen
17451da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100
17461da177e4SLinus Torvalds	bool
17471da177e4SLinus Torvalds
17481da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110
17491da177e4SLinus Torvalds	bool
17501da177e4SLinus Torvalds
17511da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR
17521da177e4SLinus Torvalds	tristate "CPUfreq driver for ARM Integrator CPUs"
17531da177e4SLinus Torvalds	depends on ARCH_INTEGRATOR && CPU_FREQ
17541da177e4SLinus Torvalds	default y
17551da177e4SLinus Torvalds	help
17561da177e4SLinus Torvalds	  This enables the CPUfreq driver for ARM Integrator CPUs.
17571da177e4SLinus Torvalds
17581da177e4SLinus Torvalds	  For details, take a look at <file:Documentation/cpu-freq>.
17591da177e4SLinus Torvalds
17601da177e4SLinus Torvalds	  If in doubt, say Y.
17611da177e4SLinus Torvalds
17629e2697ffSRussell Kingconfig CPU_FREQ_PXA
17639e2697ffSRussell King	bool
17649e2697ffSRussell King	depends on CPU_FREQ && ARCH_PXA && PXA25x
17659e2697ffSRussell King	default y
17669e2697ffSRussell King	select CPU_FREQ_DEFAULT_GOV_USERSPACE
17679e2697ffSRussell King
1768b3748dddSMark Brownconfig CPU_FREQ_S3C64XX
1769b3748dddSMark Brown	bool "CPUfreq support for Samsung S3C64XX CPUs"
1770b3748dddSMark Brown	depends on CPU_FREQ && CPU_S3C6410
1771b3748dddSMark Brown
17729d56c02aSBen Dooksconfig CPU_FREQ_S3C
17739d56c02aSBen Dooks	bool
17749d56c02aSBen Dooks	help
17759d56c02aSBen Dooks	  Internal configuration node for common cpufreq on Samsung SoC
17769d56c02aSBen Dooks
17779d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX
17784a50bfe3SRussell King	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
17799d56c02aSBen Dooks	depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
17809d56c02aSBen Dooks	select CPU_FREQ_S3C
17819d56c02aSBen Dooks	help
17829d56c02aSBen Dooks	  This enables the CPUfreq driver for the Samsung S3C24XX family
17839d56c02aSBen Dooks	  of CPUs.
17849d56c02aSBen Dooks
17859d56c02aSBen Dooks	  For details, take a look at <file:Documentation/cpu-freq>.
17869d56c02aSBen Dooks
17879d56c02aSBen Dooks	  If in doubt, say N.
17889d56c02aSBen Dooks
17899d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL
17904a50bfe3SRussell King	bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
17919d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
17929d56c02aSBen Dooks	help
17939d56c02aSBen Dooks	  Compile in support for changing the PLL frequency from the
17949d56c02aSBen Dooks	  S3C24XX series CPUfreq driver. The PLL takes time to settle
17959d56c02aSBen Dooks	  after a frequency change, so by default it is not enabled.
17969d56c02aSBen Dooks
17979d56c02aSBen Dooks	  This also means that the PLL tables for the selected CPU(s) will
17989d56c02aSBen Dooks	  be built which may increase the size of the kernel image.
17999d56c02aSBen Dooks
18009d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG
18019d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver core"
18029d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
18039d56c02aSBen Dooks	help
18049d56c02aSBen Dooks	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
18059d56c02aSBen Dooks
18069d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG
18079d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver IO timing"
18089d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
18099d56c02aSBen Dooks	help
18109d56c02aSBen Dooks	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
18119d56c02aSBen Dooks
1812e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS
1813e6d197a6SBen Dooks	bool "Export debugfs for CPUFreq"
1814e6d197a6SBen Dooks	depends on CPU_FREQ_S3C24XX && DEBUG_FS
1815e6d197a6SBen Dooks	help
1816e6d197a6SBen Dooks	  Export status information via debugfs.
1817e6d197a6SBen Dooks
18181da177e4SLinus Torvaldsendif
18191da177e4SLinus Torvalds
1820ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig"
1821ac9d7efcSRussell King
1822ac9d7efcSRussell Kingendmenu
1823ac9d7efcSRussell King
18241da177e4SLinus Torvaldsmenu "Floating point emulation"
18251da177e4SLinus Torvalds
18261da177e4SLinus Torvaldscomment "At least one emulation must be selected"
18271da177e4SLinus Torvalds
18281da177e4SLinus Torvaldsconfig FPE_NWFPE
18291da177e4SLinus Torvalds	bool "NWFPE math emulation"
1830593c252aSDave Martin	depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
18311da177e4SLinus Torvalds	---help---
18321da177e4SLinus Torvalds	  Say Y to include the NWFPE floating point emulator in the kernel.
18331da177e4SLinus Torvalds	  This is necessary to run most binaries. Linux does not currently
18341da177e4SLinus Torvalds	  support floating point hardware so you need to say Y here even if
18351da177e4SLinus Torvalds	  your machine has an FPA or floating point co-processor podule.
18361da177e4SLinus Torvalds
18371da177e4SLinus Torvalds	  You may say N here if you are going to load the Acorn FPEmulator
18381da177e4SLinus Torvalds	  early in the bootup.
18391da177e4SLinus Torvalds
18401da177e4SLinus Torvaldsconfig FPE_NWFPE_XP
18411da177e4SLinus Torvalds	bool "Support extended precision"
1842bedf142bSLennert Buytenhek	depends on FPE_NWFPE
18431da177e4SLinus Torvalds	help
18441da177e4SLinus Torvalds	  Say Y to include 80-bit support in the kernel floating-point
18451da177e4SLinus Torvalds	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
18461da177e4SLinus Torvalds	  Note that gcc does not generate 80-bit operations by default,
18471da177e4SLinus Torvalds	  so in most cases this option only enlarges the size of the
18481da177e4SLinus Torvalds	  floating point emulator without any good reason.
18491da177e4SLinus Torvalds
18501da177e4SLinus Torvalds	  You almost surely want to say N here.
18511da177e4SLinus Torvalds
18521da177e4SLinus Torvaldsconfig FPE_FASTFPE
18531da177e4SLinus Torvalds	bool "FastFPE math emulation (EXPERIMENTAL)"
18548993a44cSNicolas Pitre	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
18551da177e4SLinus Torvalds	---help---
18561da177e4SLinus Torvalds	  Say Y here to include the FAST floating point emulator in the kernel.
18571da177e4SLinus Torvalds	  This is an experimental much faster emulator which now also has full
18581da177e4SLinus Torvalds	  precision for the mantissa.  It does not support any exceptions.
18591da177e4SLinus Torvalds	  It is very simple, and approximately 3-6 times faster than NWFPE.
18601da177e4SLinus Torvalds
18611da177e4SLinus Torvalds	  It should be sufficient for most programs.  It may be not suitable
18621da177e4SLinus Torvalds	  for scientific calculations, but you have to check this for yourself.
18631da177e4SLinus Torvalds	  If you do not feel you need a faster FP emulation you should better
18641da177e4SLinus Torvalds	  choose NWFPE.
18651da177e4SLinus Torvalds
18661da177e4SLinus Torvaldsconfig VFP
18671da177e4SLinus Torvalds	bool "VFP-format floating point maths"
1868c00d4ffdSRussell King	depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
18691da177e4SLinus Torvalds	help
18701da177e4SLinus Torvalds	  Say Y to include VFP support code in the kernel. This is needed
18711da177e4SLinus Torvalds	  if your hardware includes a VFP unit.
18721da177e4SLinus Torvalds
18731da177e4SLinus Torvalds	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
18741da177e4SLinus Torvalds	  release notes and additional status information.
18751da177e4SLinus Torvalds
18761da177e4SLinus Torvalds	  Say N if your target does not have VFP hardware.
18771da177e4SLinus Torvalds
187825ebee02SCatalin Marinasconfig VFPv3
187925ebee02SCatalin Marinas	bool
188025ebee02SCatalin Marinas	depends on VFP
188125ebee02SCatalin Marinas	default y if CPU_V7
188225ebee02SCatalin Marinas
1883b5872db4SCatalin Marinasconfig NEON
1884b5872db4SCatalin Marinas	bool "Advanced SIMD (NEON) Extension support"
1885b5872db4SCatalin Marinas	depends on VFPv3 && CPU_V7
1886b5872db4SCatalin Marinas	help
1887b5872db4SCatalin Marinas	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1888b5872db4SCatalin Marinas	  Extension.
1889b5872db4SCatalin Marinas
18901da177e4SLinus Torvaldsendmenu
18911da177e4SLinus Torvalds
18921da177e4SLinus Torvaldsmenu "Userspace binary formats"
18931da177e4SLinus Torvalds
18941da177e4SLinus Torvaldssource "fs/Kconfig.binfmt"
18951da177e4SLinus Torvalds
18961da177e4SLinus Torvaldsconfig ARTHUR
18971da177e4SLinus Torvalds	tristate "RISC OS personality"
1898704bdda0SNicolas Pitre	depends on !AEABI
18991da177e4SLinus Torvalds	help
19001da177e4SLinus Torvalds	  Say Y here to include the kernel code necessary if you want to run
19011da177e4SLinus Torvalds	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
19021da177e4SLinus Torvalds	  experimental; if this sounds frightening, say N and sleep in peace.
19031da177e4SLinus Torvalds	  You can also say M here to compile this support as a module (which
19041da177e4SLinus Torvalds	  will be called arthur).
19051da177e4SLinus Torvalds
19061da177e4SLinus Torvaldsendmenu
19071da177e4SLinus Torvalds
19081da177e4SLinus Torvaldsmenu "Power management options"
19091da177e4SLinus Torvalds
1910eceab4acSRussell Kingsource "kernel/power/Kconfig"
19111da177e4SLinus Torvalds
1912f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE
1913f4cb5700SJohannes Berg	def_bool y
1914f4cb5700SJohannes Berg
19151da177e4SLinus Torvaldsendmenu
19161da177e4SLinus Torvalds
1917d5950b43SSam Ravnborgsource "net/Kconfig"
1918d5950b43SSam Ravnborg
1919ac25150fSUwe Kleine-Königsource "drivers/Kconfig"
19201da177e4SLinus Torvalds
19211da177e4SLinus Torvaldssource "fs/Kconfig"
19221da177e4SLinus Torvalds
19231da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug"
19241da177e4SLinus Torvalds
19251da177e4SLinus Torvaldssource "security/Kconfig"
19261da177e4SLinus Torvalds
19271da177e4SLinus Torvaldssource "crypto/Kconfig"
19281da177e4SLinus Torvalds
19291da177e4SLinus Torvaldssource "lib/Kconfig"
1930