xref: /linux/arch/arm/Kconfig (revision 2dc6a016bbedf18f18ad73997e5338307d6dbde9)
11da177e4SLinus Torvaldsconfig ARM
21da177e4SLinus Torvalds	bool
31da177e4SLinus Torvalds	default y
4e17c6d56SDavid Woodhouse	select HAVE_AOUT
524056f52SRussell King	select HAVE_DMA_API_DEBUG
6d0ee9f40SArnd Bergmann	select HAVE_IDE if PCI || ISA || PCMCIA
7*2dc6a016SMarek Szyprowski	select HAVE_DMA_ATTRS
82778f620SRussell King	select HAVE_MEMBLOCK
912b824fbSAlessandro Zummo	select RTC_LIB
1075e7153aSRalf Baechle	select SYS_SUPPORTS_APM_EMULATION
11a41297a0SRussell King	select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
12fe166148SWill Deacon	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
1309f05d85SRabin Vincent	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
145cbad0ebSJason Wessel	select HAVE_ARCH_KGDB
15856bc356SJon Medhurst	select HAVE_KPROBES if !XIP_KERNEL
169edddaa2SAnanth N Mavinakayanahalli	select HAVE_KRETPROBES if (HAVE_KPROBES)
17606576ceSSteven Rostedt	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
1880be7a7fSRabin Vincent	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
1980be7a7fSRabin Vincent	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
200e341af8SRabin Vincent	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
21e39f5602SDavid Daney	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
221fe53268SDmitry Baryshkov	select HAVE_GENERIC_DMA_COHERENT
23e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_GZIP
24e7db7b42SAlbin Tonnerre	select HAVE_KERNEL_LZO
256e8699f7SAlbin Tonnerre	select HAVE_KERNEL_LZMA
26a7f464f3SImre Kaloz	select HAVE_KERNEL_XZ
27e360adbeSPeter Zijlstra	select HAVE_IRQ_WORK
287ada189fSJamie Iles	select HAVE_PERF_EVENTS
297ada189fSJamie Iles	select PERF_USE_VMALLOC
30e513f8bfSWill Deacon	select HAVE_REGS_AND_STACK_ACCESS_API
31e399b1a4SRussell King	select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
32ed60453fSRabin Vincent	select HAVE_C_RECORDMCOUNT
33e2a93eccSLennert Buytenhek	select HAVE_GENERIC_HARDIRQS
3425a5662aSThomas Gleixner	select GENERIC_IRQ_SHOW
351fb90263SSantosh Shilimkar	select CPU_PM if (SUSPEND || CPU_IDLE)
36e5bfb72cSMichael S. Tsirkin	select GENERIC_PCI_IOMAP
37fada8dcfSRussell King	select HAVE_BPF_JIT if NET
381da177e4SLinus Torvalds	help
391da177e4SLinus Torvalds	  The ARM series is a line of low-power-consumption RISC chip designs
40f6c8965aSMartin Michlmayr	  licensed by ARM Ltd and targeted at embedded applications and
411da177e4SLinus Torvalds	  handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
421da177e4SLinus Torvalds	  manufactured, but legacy ARM-based PC hardware remains popular in
431da177e4SLinus Torvalds	  Europe.  There is an ARM Linux project with a web page at
441da177e4SLinus Torvalds	  <http://www.arm.linux.org.uk/>.
451da177e4SLinus Torvalds
4674facffeSRussell Kingconfig ARM_HAS_SG_CHAIN
4774facffeSRussell King	bool
4874facffeSRussell King
491a189b97SRussell Kingconfig HAVE_PWM
501a189b97SRussell King	bool
511a189b97SRussell King
520b05da72SHans Ulli Krollconfig MIGHT_HAVE_PCI
530b05da72SHans Ulli Kroll	bool
540b05da72SHans Ulli Kroll
5575e7153aSRalf Baechleconfig SYS_SUPPORTS_APM_EMULATION
5675e7153aSRalf Baechle	bool
5775e7153aSRalf Baechle
580a938b97SDavid Brownellconfig GENERIC_GPIO
590a938b97SDavid Brownell	bool
600a938b97SDavid Brownell
615cfc8ee0SJohn Stultzconfig ARCH_USES_GETTIMEOFFSET
625cfc8ee0SJohn Stultz	bool
635cfc8ee0SJohn Stultz	default n
64746140c7SKevin Hilman
650567a0c0SKevin Hilmanconfig GENERIC_CLOCKEVENTS
660567a0c0SKevin Hilman	bool
670567a0c0SKevin Hilman
68a8655e83SCatalin Marinasconfig GENERIC_CLOCKEVENTS_BROADCAST
69a8655e83SCatalin Marinas	bool
70a8655e83SCatalin Marinas	depends on GENERIC_CLOCKEVENTS
715388a6b2SRussell King	default y if SMP
72a8655e83SCatalin Marinas
73bf9dd360SRob Herringconfig KTIME_SCALAR
74bf9dd360SRob Herring	bool
75bf9dd360SRob Herring	default y
76bf9dd360SRob Herring
77bc581770SLinus Walleijconfig HAVE_TCM
78bc581770SLinus Walleij	bool
79bc581770SLinus Walleij	select GENERIC_ALLOCATOR
80bc581770SLinus Walleij
81e119bfffSRussell Kingconfig HAVE_PROC_CPU
82e119bfffSRussell King	bool
83e119bfffSRussell King
845ea81769SAl Viroconfig NO_IOPORT
855ea81769SAl Viro	bool
865ea81769SAl Viro
871da177e4SLinus Torvaldsconfig EISA
881da177e4SLinus Torvalds	bool
891da177e4SLinus Torvalds	---help---
901da177e4SLinus Torvalds	  The Extended Industry Standard Architecture (EISA) bus was
911da177e4SLinus Torvalds	  developed as an open alternative to the IBM MicroChannel bus.
921da177e4SLinus Torvalds
931da177e4SLinus Torvalds	  The EISA bus provided some of the features of the IBM MicroChannel
941da177e4SLinus Torvalds	  bus while maintaining backward compatibility with cards made for
951da177e4SLinus Torvalds	  the older ISA bus.  The EISA bus saw limited use between 1988 and
961da177e4SLinus Torvalds	  1995 when it was made obsolete by the PCI bus.
971da177e4SLinus Torvalds
981da177e4SLinus Torvalds	  Say Y here if you are building a kernel for an EISA-based machine.
991da177e4SLinus Torvalds
1001da177e4SLinus Torvalds	  Otherwise, say N.
1011da177e4SLinus Torvalds
1021da177e4SLinus Torvaldsconfig SBUS
1031da177e4SLinus Torvalds	bool
1041da177e4SLinus Torvalds
1051da177e4SLinus Torvaldsconfig MCA
1061da177e4SLinus Torvalds	bool
1071da177e4SLinus Torvalds	help
1081da177e4SLinus Torvalds	  MicroChannel Architecture is found in some IBM PS/2 machines and
1091da177e4SLinus Torvalds	  laptops.  It is a bus system similar to PCI or ISA. See
1101da177e4SLinus Torvalds	  <file:Documentation/mca.txt> (and especially the web page given
1111da177e4SLinus Torvalds	  there) before attempting to build an MCA bus kernel.
1121da177e4SLinus Torvalds
113f16fb1ecSRussell Kingconfig STACKTRACE_SUPPORT
114f16fb1ecSRussell King	bool
115f16fb1ecSRussell King	default y
116f16fb1ecSRussell King
117f76e9154SNicolas Pitreconfig HAVE_LATENCYTOP_SUPPORT
118f76e9154SNicolas Pitre	bool
119f76e9154SNicolas Pitre	depends on !SMP
120f76e9154SNicolas Pitre	default y
121f76e9154SNicolas Pitre
122f16fb1ecSRussell Kingconfig LOCKDEP_SUPPORT
123f16fb1ecSRussell King	bool
124f16fb1ecSRussell King	default y
125f16fb1ecSRussell King
1267ad1bcb2SRussell Kingconfig TRACE_IRQFLAGS_SUPPORT
1277ad1bcb2SRussell King	bool
1287ad1bcb2SRussell King	default y
1297ad1bcb2SRussell King
1304a2581a0SThomas Gleixnerconfig HARDIRQS_SW_RESEND
1314a2581a0SThomas Gleixner	bool
1324a2581a0SThomas Gleixner	default y
1334a2581a0SThomas Gleixner
1344a2581a0SThomas Gleixnerconfig GENERIC_IRQ_PROBE
1354a2581a0SThomas Gleixner	bool
1364a2581a0SThomas Gleixner	default y
1374a2581a0SThomas Gleixner
13895c354feSNick Pigginconfig GENERIC_LOCKBREAK
13995c354feSNick Piggin	bool
14095c354feSNick Piggin	default y
14195c354feSNick Piggin	depends on SMP && PREEMPT
14295c354feSNick Piggin
1431da177e4SLinus Torvaldsconfig RWSEM_GENERIC_SPINLOCK
1441da177e4SLinus Torvalds	bool
1451da177e4SLinus Torvalds	default y
1461da177e4SLinus Torvalds
1471da177e4SLinus Torvaldsconfig RWSEM_XCHGADD_ALGORITHM
1481da177e4SLinus Torvalds	bool
1491da177e4SLinus Torvalds
150f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U32
151f0d1b0b3SDavid Howells	bool
152f0d1b0b3SDavid Howells
153f0d1b0b3SDavid Howellsconfig ARCH_HAS_ILOG2_U64
154f0d1b0b3SDavid Howells	bool
155f0d1b0b3SDavid Howells
15689c52ed4SBen Dooksconfig ARCH_HAS_CPUFREQ
15789c52ed4SBen Dooks	bool
15889c52ed4SBen Dooks	help
15989c52ed4SBen Dooks	  Internal node to signify that the ARCH has CPUFREQ support
16089c52ed4SBen Dooks	  and that the relevant menu configurations are displayed for
16189c52ed4SBen Dooks	  it.
16289c52ed4SBen Dooks
163c7b0aff4SKevin Hilmanconfig ARCH_HAS_CPU_IDLE_WAIT
164c7b0aff4SKevin Hilman       def_bool y
165c7b0aff4SKevin Hilman
166b89c3b16SAkinobu Mitaconfig GENERIC_HWEIGHT
167b89c3b16SAkinobu Mita	bool
168b89c3b16SAkinobu Mita	default y
169b89c3b16SAkinobu Mita
1701da177e4SLinus Torvaldsconfig GENERIC_CALIBRATE_DELAY
1711da177e4SLinus Torvalds	bool
1721da177e4SLinus Torvalds	default y
1731da177e4SLinus Torvalds
174a08b6b79Sviro@ZenIV.linux.org.ukconfig ARCH_MAY_HAVE_PC_FDC
175a08b6b79Sviro@ZenIV.linux.org.uk	bool
176a08b6b79Sviro@ZenIV.linux.org.uk
1775ac6da66SChristoph Lameterconfig ZONE_DMA
1785ac6da66SChristoph Lameter	bool
1795ac6da66SChristoph Lameter
180ccd7ab7fSFUJITA Tomonoriconfig NEED_DMA_MAP_STATE
181ccd7ab7fSFUJITA Tomonori       def_bool y
182ccd7ab7fSFUJITA Tomonori
18358af4a24SRob Herringconfig ARCH_HAS_DMA_SET_COHERENT_MASK
18458af4a24SRob Herring	bool
18558af4a24SRob Herring
1861da177e4SLinus Torvaldsconfig GENERIC_ISA_DMA
1871da177e4SLinus Torvalds	bool
1881da177e4SLinus Torvalds
1891da177e4SLinus Torvaldsconfig FIQ
1901da177e4SLinus Torvalds	bool
1911da177e4SLinus Torvalds
19213a5045dSRob Herringconfig NEED_RET_TO_USER
19313a5045dSRob Herring	bool
19413a5045dSRob Herring
195034d2f5aSAl Viroconfig ARCH_MTD_XIP
196034d2f5aSAl Viro	bool
197034d2f5aSAl Viro
198c760fc19SHyok S. Choiconfig VECTORS_BASE
199c760fc19SHyok S. Choi	hex
2006afd6faeSHyok S. Choi	default 0xffff0000 if MMU || CPU_HIGH_VECTOR
201c760fc19SHyok S. Choi	default DRAM_BASE if REMAP_VECTORS_TO_RAM
202c760fc19SHyok S. Choi	default 0x00000000
203c760fc19SHyok S. Choi	help
204c760fc19SHyok S. Choi	  The base address of exception vectors.
205c760fc19SHyok S. Choi
206dc21af99SRussell Kingconfig ARM_PATCH_PHYS_VIRT
207c1becedcSRussell King	bool "Patch physical to virtual translations at runtime" if EMBEDDED
208c1becedcSRussell King	default y
209b511d75dSNicolas Pitre	depends on !XIP_KERNEL && MMU
210dc21af99SRussell King	depends on !ARCH_REALVIEW || !SPARSEMEM
211dc21af99SRussell King	help
212111e9a5cSRussell King	  Patch phys-to-virt and virt-to-phys translation functions at
213111e9a5cSRussell King	  boot and module load time according to the position of the
214111e9a5cSRussell King	  kernel in system memory.
215dc21af99SRussell King
216111e9a5cSRussell King	  This can only be used with non-XIP MMU kernels where the base
217daece596SNicolas Pitre	  of physical memory is at a 16MB boundary.
218dc21af99SRussell King
219c1becedcSRussell King	  Only disable this option if you know that you do not require
220c1becedcSRussell King	  this feature (eg, building a kernel for a single machine) and
221c1becedcSRussell King	  you need to shrink the kernel to the minimal size.
222c1becedcSRussell King
223c334bc15SRob Herringconfig NEED_MACH_IO_H
224c334bc15SRob Herring	bool
225c334bc15SRob Herring	help
226c334bc15SRob Herring	  Select this when mach/io.h is required to provide special
227c334bc15SRob Herring	  definitions for this platform.  The need for mach/io.h should
228c334bc15SRob Herring	  be avoided when possible.
229c334bc15SRob Herring
2300cdc8b92SNicolas Pitreconfig NEED_MACH_MEMORY_H
2311b9f95f8SNicolas Pitre	bool
232111e9a5cSRussell King	help
2330cdc8b92SNicolas Pitre	  Select this when mach/memory.h is required to provide special
2340cdc8b92SNicolas Pitre	  definitions for this platform.  The need for mach/memory.h should
2350cdc8b92SNicolas Pitre	  be avoided when possible.
2361b9f95f8SNicolas Pitre
2371b9f95f8SNicolas Pitreconfig PHYS_OFFSET
238974c0724SNicolas Pitre	hex "Physical address of main memory" if MMU
2390cdc8b92SNicolas Pitre	depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
240974c0724SNicolas Pitre	default DRAM_BASE if !MMU
2411b9f95f8SNicolas Pitre	help
2421b9f95f8SNicolas Pitre	  Please provide the physical address corresponding to the
2431b9f95f8SNicolas Pitre	  location of main memory in your system.
244cada3c08SRussell King
24587e040b6SSimon Glassconfig GENERIC_BUG
24687e040b6SSimon Glass	def_bool y
24787e040b6SSimon Glass	depends on BUG
24887e040b6SSimon Glass
2491da177e4SLinus Torvaldssource "init/Kconfig"
2501da177e4SLinus Torvalds
251dc52ddc0SMatt Helsleysource "kernel/Kconfig.freezer"
252dc52ddc0SMatt Helsley
2531da177e4SLinus Torvaldsmenu "System Type"
2541da177e4SLinus Torvalds
2553c427975SHyok S. Choiconfig MMU
2563c427975SHyok S. Choi	bool "MMU-based Paged Memory Management Support"
2573c427975SHyok S. Choi	default y
2583c427975SHyok S. Choi	help
2593c427975SHyok S. Choi	  Select if you want MMU-based virtualised addressing space
2603c427975SHyok S. Choi	  support by paged memory management. If unsure, say 'Y'.
2613c427975SHyok S. Choi
262ccf50e23SRussell King#
263ccf50e23SRussell King# The "ARM system type" choice list is ordered alphabetically by option
264ccf50e23SRussell King# text.  Please add new entries in the option alphabetic order.
265ccf50e23SRussell King#
2661da177e4SLinus Torvaldschoice
2671da177e4SLinus Torvalds	prompt "ARM system type"
2686a0e2430SCatalin Marinas	default ARCH_VERSATILE
2691da177e4SLinus Torvalds
2704af6fee1SDeepak Saxenaconfig ARCH_INTEGRATOR
2714af6fee1SDeepak Saxena	bool "ARM Ltd. Integrator family"
2724af6fee1SDeepak Saxena	select ARM_AMBA
27389c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
2746d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
275aa3831cfSKyungmin Park	select HAVE_MACH_CLKDEV
2769904f793SLinus Walleij	select HAVE_TCM
277c5a0adb5SRussell King	select ICST
27813edd86dSRussell King	select GENERIC_CLOCKEVENTS
279f4b8b319SRussell King	select PLAT_VERSATILE
280c41b16f8SRussell King	select PLAT_VERSATILE_FPGA_IRQ
281c334bc15SRob Herring	select NEED_MACH_IO_H
2820cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
283695436e3SLinus Walleij	select SPARSE_IRQ
2844af6fee1SDeepak Saxena	help
2854af6fee1SDeepak Saxena	  Support for ARM's Integrator platform.
2864af6fee1SDeepak Saxena
2874af6fee1SDeepak Saxenaconfig ARCH_REALVIEW
2884af6fee1SDeepak Saxena	bool "ARM Ltd. RealView family"
2894af6fee1SDeepak Saxena	select ARM_AMBA
2906d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
291aa3831cfSKyungmin Park	select HAVE_MACH_CLKDEV
292c5a0adb5SRussell King	select ICST
293ae30ceacSCatalin Marinas	select GENERIC_CLOCKEVENTS
294eb7fffa3SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
295f4b8b319SRussell King	select PLAT_VERSATILE
2963cb5ee49SRussell King	select PLAT_VERSATILE_CLCD
297e3887714SRussell King	select ARM_TIMER_SP804
298b56ba8aaSColin Tuckley	select GPIO_PL061 if GPIOLIB
2990cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
3004af6fee1SDeepak Saxena	help
3014af6fee1SDeepak Saxena	  This enables support for ARM Ltd RealView boards.
3024af6fee1SDeepak Saxena
3034af6fee1SDeepak Saxenaconfig ARCH_VERSATILE
3044af6fee1SDeepak Saxena	bool "ARM Ltd. Versatile family"
3054af6fee1SDeepak Saxena	select ARM_AMBA
3064af6fee1SDeepak Saxena	select ARM_VIC
3076d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
308aa3831cfSKyungmin Park	select HAVE_MACH_CLKDEV
309c5a0adb5SRussell King	select ICST
31089df1272SKevin Hilman	select GENERIC_CLOCKEVENTS
311bbeddc43SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
312f4b8b319SRussell King	select PLAT_VERSATILE
3133414ba8cSRussell King	select PLAT_VERSATILE_CLCD
314c41b16f8SRussell King	select PLAT_VERSATILE_FPGA_IRQ
315e3887714SRussell King	select ARM_TIMER_SP804
3164af6fee1SDeepak Saxena	help
3174af6fee1SDeepak Saxena	  This enables support for ARM Ltd Versatile board.
3184af6fee1SDeepak Saxena
319ceade897SRussell Kingconfig ARCH_VEXPRESS
320ceade897SRussell King	bool "ARM Ltd. Versatile Express family"
321ceade897SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
322ceade897SRussell King	select ARM_AMBA
323ceade897SRussell King	select ARM_TIMER_SP804
3246d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
325aa3831cfSKyungmin Park	select HAVE_MACH_CLKDEV
326ceade897SRussell King	select GENERIC_CLOCKEVENTS
327ceade897SRussell King	select HAVE_CLK
32895c34f83SNick Bowler	select HAVE_PATA_PLATFORM
329ceade897SRussell King	select ICST
330ba81f502SRussell King	select NO_IOPORT
331ceade897SRussell King	select PLAT_VERSATILE
3320fb44b91SRussell King	select PLAT_VERSATILE_CLCD
333ceade897SRussell King	help
334ceade897SRussell King	  This enables support for the ARM Ltd Versatile Express boards.
335ceade897SRussell King
3368fc5ffa0SAndrew Victorconfig ARCH_AT91
3378fc5ffa0SAndrew Victor	bool "Atmel AT91"
338f373e8c0SRyan Mallon	select ARCH_REQUIRE_GPIOLIB
33993686ae8SDavid Brownell	select HAVE_CLK
340bd602995SJean-Christophe PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
341e261501dSNicolas Ferre	select IRQ_DOMAIN
3421ac02d79SRob Herring	select NEED_MACH_IO_H if PCCARD
3434af6fee1SDeepak Saxena	help
3442b3b3516SAndrew Victor	  This enables support for systems based on the Atmel AT91RM9200,
3459918ceafSJean-Christophe PLAGNIOL-VILLARD	  AT91SAM9 processors.
3464af6fee1SDeepak Saxena
347ccf50e23SRussell Kingconfig ARCH_BCMRING
348ccf50e23SRussell King	bool "Broadcom BCMRING"
349ccf50e23SRussell King	depends on MMU
350ccf50e23SRussell King	select CPU_V6
351ccf50e23SRussell King	select ARM_AMBA
35282d63734SRussell King	select ARM_TIMER_SP804
3536d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
354ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
355ccf50e23SRussell King	select ARCH_WANT_OPTIONAL_GPIOLIB
356ccf50e23SRussell King	help
357ccf50e23SRussell King	  Support for Broadcom's BCMRing platform.
358ccf50e23SRussell King
359220e6cf7SRob Herringconfig ARCH_HIGHBANK
360220e6cf7SRob Herring	bool "Calxeda Highbank-based"
361220e6cf7SRob Herring	select ARCH_WANT_OPTIONAL_GPIOLIB
362220e6cf7SRob Herring	select ARM_AMBA
363220e6cf7SRob Herring	select ARM_GIC
364220e6cf7SRob Herring	select ARM_TIMER_SP804
36522d80379SDave Martin	select CACHE_L2X0
366220e6cf7SRob Herring	select CLKDEV_LOOKUP
367220e6cf7SRob Herring	select CPU_V7
368220e6cf7SRob Herring	select GENERIC_CLOCKEVENTS
369220e6cf7SRob Herring	select HAVE_ARM_SCU
3703b55658aSDave Martin	select HAVE_SMP
371fdfa64a4SRob Herring	select SPARSE_IRQ
372220e6cf7SRob Herring	select USE_OF
373220e6cf7SRob Herring	help
374220e6cf7SRob Herring	  Support for the Calxeda Highbank SoC based boards.
375220e6cf7SRob Herring
3761da177e4SLinus Torvaldsconfig ARCH_CLPS711X
3774af6fee1SDeepak Saxena	bool "Cirrus Logic CLPS711x/EP721x-based"
378c750815eSRussell King	select CPU_ARM720T
3795cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
3800cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
381f999b8bdSMartin Michlmayr	help
382f999b8bdSMartin Michlmayr	  Support for Cirrus Logic 711x/721x based boards.
3831da177e4SLinus Torvalds
384d94f944eSAnton Vorontsovconfig ARCH_CNS3XXX
385d94f944eSAnton Vorontsov	bool "Cavium Networks CNS3XXX family"
38600d2711dSImre Kaloz	select CPU_V6K
387d94f944eSAnton Vorontsov	select GENERIC_CLOCKEVENTS
388d94f944eSAnton Vorontsov	select ARM_GIC
389ce5ea9f3SDave Martin	select MIGHT_HAVE_CACHE_L2X0
3900b05da72SHans Ulli Kroll	select MIGHT_HAVE_PCI
3915f32f7a0SAnton Vorontsov	select PCI_DOMAINS if PCI
392d94f944eSAnton Vorontsov	help
393d94f944eSAnton Vorontsov	  Support for Cavium Networks CNS3XXX platform.
394d94f944eSAnton Vorontsov
395788c9700SRussell Kingconfig ARCH_GEMINI
396788c9700SRussell King	bool "Cortina Systems Gemini"
397788c9700SRussell King	select CPU_FA526
398788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
3995cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
400788c9700SRussell King	help
401788c9700SRussell King	  Support for the Cortina Systems Gemini family SoCs
402788c9700SRussell King
4033a6cb8ceSArnd Bergmannconfig ARCH_PRIMA2
4043a6cb8ceSArnd Bergmann	bool "CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform"
4053a6cb8ceSArnd Bergmann	select CPU_V7
4063a6cb8ceSArnd Bergmann	select NO_IOPORT
4073a6cb8ceSArnd Bergmann	select GENERIC_CLOCKEVENTS
4083a6cb8ceSArnd Bergmann	select CLKDEV_LOOKUP
4093a6cb8ceSArnd Bergmann	select GENERIC_IRQ_CHIP
410ce5ea9f3SDave Martin	select MIGHT_HAVE_CACHE_L2X0
4113a6cb8ceSArnd Bergmann	select USE_OF
4123a6cb8ceSArnd Bergmann	select ZONE_DMA
4133a6cb8ceSArnd Bergmann	help
4143a6cb8ceSArnd Bergmann          Support for CSR SiRFSoC ARM Cortex A9 Platform
4153a6cb8ceSArnd Bergmann
4161da177e4SLinus Torvaldsconfig ARCH_EBSA110
4171da177e4SLinus Torvalds	bool "EBSA-110"
418c750815eSRussell King	select CPU_SA110
419f7e68bbfSRussell King	select ISA
420c5eb2a2bSRussell King	select NO_IOPORT
4215cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
422c334bc15SRob Herring	select NEED_MACH_IO_H
4230cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
4241da177e4SLinus Torvalds	help
4251da177e4SLinus Torvalds	  This is an evaluation board for the StrongARM processor available
426f6c8965aSMartin Michlmayr	  from Digital. It has limited hardware on-board, including an
4271da177e4SLinus Torvalds	  Ethernet interface, two PCMCIA sockets, two serial ports and a
4281da177e4SLinus Torvalds	  parallel port.
4291da177e4SLinus Torvalds
430e7736d47SLennert Buytenhekconfig ARCH_EP93XX
431e7736d47SLennert Buytenhek	bool "EP93xx-based"
432c750815eSRussell King	select CPU_ARM920T
433e7736d47SLennert Buytenhek	select ARM_AMBA
434e7736d47SLennert Buytenhek	select ARM_VIC
4356d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
4367444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
437eb33575cSMel Gorman	select ARCH_HAS_HOLES_MEMORYMODEL
4385cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
4395725aeaeSArnd Bergmann	select NEED_MACH_MEMORY_H
440e7736d47SLennert Buytenhek	help
441e7736d47SLennert Buytenhek	  This enables support for the Cirrus EP93xx series of CPUs.
442e7736d47SLennert Buytenhek
4431da177e4SLinus Torvaldsconfig ARCH_FOOTBRIDGE
4441da177e4SLinus Torvalds	bool "FootBridge"
445c750815eSRussell King	select CPU_SA110
4461da177e4SLinus Torvalds	select FOOTBRIDGE
4474e8d7637SRussell King	select GENERIC_CLOCKEVENTS
448d0ee9f40SArnd Bergmann	select HAVE_IDE
449c334bc15SRob Herring	select NEED_MACH_IO_H
4500cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
451f999b8bdSMartin Michlmayr	help
452f999b8bdSMartin Michlmayr	  Support for systems based on the DC21285 companion chip
453f999b8bdSMartin Michlmayr	  ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
4541da177e4SLinus Torvalds
455788c9700SRussell Kingconfig ARCH_MXC
456788c9700SRussell King	bool "Freescale MXC/iMX-based"
457788c9700SRussell King	select GENERIC_CLOCKEVENTS
458788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
4596d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
460234b6cedSRussell King	select CLKSRC_MMIO
4618b6c44f1SShawn Guo	select GENERIC_IRQ_CHIP
462ffa2ea3fSSascha Hauer	select MULTI_IRQ_HANDLER
463788c9700SRussell King	help
464788c9700SRussell King	  Support for Freescale MXC/iMX-based family of processors
465788c9700SRussell King
4661d3f33d5SShawn Guoconfig ARCH_MXS
4671d3f33d5SShawn Guo	bool "Freescale MXS-based"
4681d3f33d5SShawn Guo	select GENERIC_CLOCKEVENTS
4691d3f33d5SShawn Guo	select ARCH_REQUIRE_GPIOLIB
470b9214b97SSascha Hauer	select CLKDEV_LOOKUP
4715c61ddcfSRussell King	select CLKSRC_MMIO
4726abda3e1SShawn Guo	select HAVE_CLK_PREPARE
4731d3f33d5SShawn Guo	help
4741d3f33d5SShawn Guo	  Support for Freescale MXS-based family of processors
4751d3f33d5SShawn Guo
4764af6fee1SDeepak Saxenaconfig ARCH_NETX
4774af6fee1SDeepak Saxena	bool "Hilscher NetX based"
478234b6cedSRussell King	select CLKSRC_MMIO
479c750815eSRussell King	select CPU_ARM926T
4804af6fee1SDeepak Saxena	select ARM_VIC
4812fcfe6b8SUwe Kleine-König	select GENERIC_CLOCKEVENTS
482f999b8bdSMartin Michlmayr	help
4834af6fee1SDeepak Saxena	  This enables support for systems based on the Hilscher NetX Soc
4844af6fee1SDeepak Saxena
4854af6fee1SDeepak Saxenaconfig ARCH_H720X
4864af6fee1SDeepak Saxena	bool "Hynix HMS720x-based"
487c750815eSRussell King	select CPU_ARM720T
4884af6fee1SDeepak Saxena	select ISA_DMA_API
4895cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
4904af6fee1SDeepak Saxena	help
4914af6fee1SDeepak Saxena	  This enables support for systems based on the Hynix HMS720x
4924af6fee1SDeepak Saxena
4933b938be6SRussell Kingconfig ARCH_IOP13XX
4943b938be6SRussell King	bool "IOP13xx-based"
4953b938be6SRussell King	depends on MMU
496c750815eSRussell King	select CPU_XSC3
4973b938be6SRussell King	select PLAT_IOP
4983b938be6SRussell King	select PCI
4993b938be6SRussell King	select ARCH_SUPPORTS_MSI
5008d5796d2SLennert Buytenhek	select VMSPLIT_1G
501c334bc15SRob Herring	select NEED_MACH_IO_H
5020cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
50313a5045dSRob Herring	select NEED_RET_TO_USER
5043b938be6SRussell King	help
5053b938be6SRussell King	  Support for Intel's IOP13XX (XScale) family of processors.
5063b938be6SRussell King
5073f7e5815SLennert Buytenhekconfig ARCH_IOP32X
5083f7e5815SLennert Buytenhek	bool "IOP32x-based"
509a4f7e763SRussell King	depends on MMU
510c750815eSRussell King	select CPU_XSCALE
511c334bc15SRob Herring	select NEED_MACH_IO_H
51213a5045dSRob Herring	select NEED_RET_TO_USER
5137ae1f7ecSLennert Buytenhek	select PLAT_IOP
514f7e68bbfSRussell King	select PCI
515bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
516f999b8bdSMartin Michlmayr	help
5173f7e5815SLennert Buytenhek	  Support for Intel's 80219 and IOP32X (XScale) family of
5183f7e5815SLennert Buytenhek	  processors.
5193f7e5815SLennert Buytenhek
5203f7e5815SLennert Buytenhekconfig ARCH_IOP33X
5213f7e5815SLennert Buytenhek	bool "IOP33x-based"
5223f7e5815SLennert Buytenhek	depends on MMU
523c750815eSRussell King	select CPU_XSCALE
524c334bc15SRob Herring	select NEED_MACH_IO_H
52513a5045dSRob Herring	select NEED_RET_TO_USER
5267ae1f7ecSLennert Buytenhek	select PLAT_IOP
5273f7e5815SLennert Buytenhek	select PCI
528bb2b180cSRussell King	select ARCH_REQUIRE_GPIOLIB
5293f7e5815SLennert Buytenhek	help
5303f7e5815SLennert Buytenhek	  Support for Intel's IOP33X (XScale) family of processors.
5311da177e4SLinus Torvalds
5323b938be6SRussell Kingconfig ARCH_IXP23XX
5333b938be6SRussell King 	bool "IXP23XX-based"
534588ef769SDan Williams	depends on MMU
535c750815eSRussell King	select CPU_XSC3
536285f5fa7SDan Williams 	select PCI
5375cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
538c334bc15SRob Herring	select NEED_MACH_IO_H
5390cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
540285f5fa7SDan Williams	help
5413b938be6SRussell King	  Support for Intel's IXP23xx (XScale) family of processors.
5421da177e4SLinus Torvalds
5431da177e4SLinus Torvaldsconfig ARCH_IXP2000
5441da177e4SLinus Torvalds	bool "IXP2400/2800-based"
545a4f7e763SRussell King	depends on MMU
546c750815eSRussell King	select CPU_XSCALE
547f7e68bbfSRussell King	select PCI
5485cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
549c334bc15SRob Herring	select NEED_MACH_IO_H
5500cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
551f999b8bdSMartin Michlmayr	help
552f999b8bdSMartin Michlmayr	  Support for Intel's IXP2400/2800 (XScale) family of processors.
5531da177e4SLinus Torvalds
5543b938be6SRussell Kingconfig ARCH_IXP4XX
5553b938be6SRussell King	bool "IXP4xx-based"
556a4f7e763SRussell King	depends on MMU
55758af4a24SRob Herring	select ARCH_HAS_DMA_SET_COHERENT_MASK
558234b6cedSRussell King	select CLKSRC_MMIO
559c750815eSRussell King	select CPU_XSCALE
5608858e9afSMilan Svoboda	select GENERIC_GPIO
5613b938be6SRussell King	select GENERIC_CLOCKEVENTS
5620b05da72SHans Ulli Kroll	select MIGHT_HAVE_PCI
563c334bc15SRob Herring	select NEED_MACH_IO_H
564485bdde7SRussell King	select DMABOUNCE if PCI
565c4713074SLennert Buytenhek	help
5663b938be6SRussell King	  Support for Intel's IXP4XX (XScale) family of processors.
567c4713074SLennert Buytenhek
568edabd38eSSaeed Bisharaconfig ARCH_DOVE
569edabd38eSSaeed Bishara	bool "Marvell Dove"
5707b769bb3SKonstantin Porotchkin	select CPU_V7
571edabd38eSSaeed Bishara	select PCI
572edabd38eSSaeed Bishara	select ARCH_REQUIRE_GPIOLIB
573edabd38eSSaeed Bishara	select GENERIC_CLOCKEVENTS
574c334bc15SRob Herring	select NEED_MACH_IO_H
575edabd38eSSaeed Bishara	select PLAT_ORION
576edabd38eSSaeed Bishara	help
577edabd38eSSaeed Bishara	  Support for the Marvell Dove SoC 88AP510
578edabd38eSSaeed Bishara
579651c74c7SSaeed Bisharaconfig ARCH_KIRKWOOD
580651c74c7SSaeed Bishara	bool "Marvell Kirkwood"
581c750815eSRussell King	select CPU_FEROCEON
582651c74c7SSaeed Bishara	select PCI
583a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
584651c74c7SSaeed Bishara	select GENERIC_CLOCKEVENTS
585c334bc15SRob Herring	select NEED_MACH_IO_H
586651c74c7SSaeed Bishara	select PLAT_ORION
587651c74c7SSaeed Bishara	help
588651c74c7SSaeed Bishara	  Support for the following Marvell Kirkwood series SoCs:
589651c74c7SSaeed Bishara	  88F6180, 88F6192 and 88F6281.
590651c74c7SSaeed Bishara
59140805949SKevin Wellsconfig ARCH_LPC32XX
59240805949SKevin Wells	bool "NXP LPC32XX"
593234b6cedSRussell King	select CLKSRC_MMIO
59440805949SKevin Wells	select CPU_ARM926T
59540805949SKevin Wells	select ARCH_REQUIRE_GPIOLIB
59640805949SKevin Wells	select HAVE_IDE
59740805949SKevin Wells	select ARM_AMBA
59840805949SKevin Wells	select USB_ARCH_HAS_OHCI
5996d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
60040805949SKevin Wells	select GENERIC_CLOCKEVENTS
60140805949SKevin Wells	help
60240805949SKevin Wells	  Support for the NXP LPC32XX family of processors
60340805949SKevin Wells
604788c9700SRussell Kingconfig ARCH_MV78XX0
605788c9700SRussell King	bool "Marvell MV78xx0"
606788c9700SRussell King	select CPU_FEROCEON
607788c9700SRussell King	select PCI
608a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
609788c9700SRussell King	select GENERIC_CLOCKEVENTS
610c334bc15SRob Herring	select NEED_MACH_IO_H
611788c9700SRussell King	select PLAT_ORION
612788c9700SRussell King	help
613788c9700SRussell King	  Support for the following Marvell MV78xx0 series SoCs:
614788c9700SRussell King	  MV781x0, MV782x0.
615788c9700SRussell King
616788c9700SRussell Kingconfig ARCH_ORION5X
617788c9700SRussell King	bool "Marvell Orion"
618788c9700SRussell King	depends on MMU
619788c9700SRussell King	select CPU_FEROCEON
620788c9700SRussell King	select PCI
621a8865655SErik Benada	select ARCH_REQUIRE_GPIOLIB
622788c9700SRussell King	select GENERIC_CLOCKEVENTS
623788c9700SRussell King	select PLAT_ORION
624788c9700SRussell King	help
625788c9700SRussell King	  Support for the following Marvell Orion 5x series SoCs:
626788c9700SRussell King	  Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
627788c9700SRussell King	  Orion-2 (5281), Orion-1-90 (6183).
628788c9700SRussell King
629788c9700SRussell Kingconfig ARCH_MMP
6302f7e8faeSHaojian Zhuang	bool "Marvell PXA168/910/MMP2"
631788c9700SRussell King	depends on MMU
632788c9700SRussell King	select ARCH_REQUIRE_GPIOLIB
6336d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
634788c9700SRussell King	select GENERIC_CLOCKEVENTS
635157d2644SHaojian Zhuang	select GPIO_PXA
636788c9700SRussell King	select TICK_ONESHOT
637788c9700SRussell King	select PLAT_PXA
6380bd86961SHaojian Zhuang	select SPARSE_IRQ
6393c7241bdSLeo Yan	select GENERIC_ALLOCATOR
640788c9700SRussell King	help
6412f7e8faeSHaojian Zhuang	  Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
642788c9700SRussell King
643c53c9cf6SAndrew Victorconfig ARCH_KS8695
644c53c9cf6SAndrew Victor	bool "Micrel/Kendin KS8695"
645c750815eSRussell King	select CPU_ARM922T
64672880ad8SDaniel Silverstone	select ARCH_REQUIRE_GPIOLIB
6475cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
6480cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
649c53c9cf6SAndrew Victor	help
650c53c9cf6SAndrew Victor	  Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
651c53c9cf6SAndrew Victor	  System-on-Chip devices.
652c53c9cf6SAndrew Victor
653788c9700SRussell Kingconfig ARCH_W90X900
654788c9700SRussell King	bool "Nuvoton W90X900 CPU"
655788c9700SRussell King	select CPU_ARM926T
656c52d3d68Swanzongshun	select ARCH_REQUIRE_GPIOLIB
6576d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
6586fa5d5f7SRussell King	select CLKSRC_MMIO
65958b5369eSwanzongshun	select GENERIC_CLOCKEVENTS
660777f9bebSLennert Buytenhek	help
661a8bc4eadSwanzongshun	  Support for Nuvoton (Winbond logic dept.) ARM9 processor,
662a8bc4eadSwanzongshun	  At present, the w90x900 has been renamed nuc900, regarding
663a8bc4eadSwanzongshun	  the ARM series product line, you can login the following
664a8bc4eadSwanzongshun	  link address to know more.
665a8bc4eadSwanzongshun
666a8bc4eadSwanzongshun	  <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
667a8bc4eadSwanzongshun		ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
668585cf175STzachi Perelstein
669c5f80065SErik Gillingconfig ARCH_TEGRA
670c5f80065SErik Gilling	bool "NVIDIA Tegra"
6714073723aSRussell King	select CLKDEV_LOOKUP
672234b6cedSRussell King	select CLKSRC_MMIO
673c5f80065SErik Gilling	select GENERIC_CLOCKEVENTS
674c5f80065SErik Gilling	select GENERIC_GPIO
675c5f80065SErik Gilling	select HAVE_CLK
6763b55658aSDave Martin	select HAVE_SMP
677ce5ea9f3SDave Martin	select MIGHT_HAVE_CACHE_L2X0
678c334bc15SRob Herring	select NEED_MACH_IO_H if PCI
6797056d423SColin Cross	select ARCH_HAS_CPUFREQ
680c5f80065SErik Gilling	help
681c5f80065SErik Gilling	  This enables support for NVIDIA Tegra based systems (Tegra APX,
682c5f80065SErik Gilling	  Tegra 6xx and Tegra 2 series).
683c5f80065SErik Gilling
684af75655cSJamie Ilesconfig ARCH_PICOXCELL
685af75655cSJamie Iles	bool "Picochip picoXcell"
686af75655cSJamie Iles	select ARCH_REQUIRE_GPIOLIB
687af75655cSJamie Iles	select ARM_PATCH_PHYS_VIRT
688af75655cSJamie Iles	select ARM_VIC
689af75655cSJamie Iles	select CPU_V6K
690af75655cSJamie Iles	select DW_APB_TIMER
691af75655cSJamie Iles	select GENERIC_CLOCKEVENTS
692af75655cSJamie Iles	select GENERIC_GPIO
693af75655cSJamie Iles	select HAVE_TCM
694af75655cSJamie Iles	select NO_IOPORT
69598e27a5cSJamie Iles	select SPARSE_IRQ
696af75655cSJamie Iles	select USE_OF
697af75655cSJamie Iles	help
698af75655cSJamie Iles	  This enables support for systems based on the Picochip picoXcell
699af75655cSJamie Iles	  family of Femtocell devices.  The picoxcell support requires device tree
700af75655cSJamie Iles	  for all boards.
701af75655cSJamie Iles
7024af6fee1SDeepak Saxenaconfig ARCH_PNX4008
7034af6fee1SDeepak Saxena	bool "Philips Nexperia PNX4008 Mobile"
704c750815eSRussell King	select CPU_ARM926T
7056d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
7065cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
7074af6fee1SDeepak Saxena	help
7084af6fee1SDeepak Saxena	  This enables support for Philips PNX4008 mobile platform.
7094af6fee1SDeepak Saxena
7101da177e4SLinus Torvaldsconfig ARCH_PXA
7112c8086a5Seric miao	bool "PXA2xx/PXA3xx-based"
712a4f7e763SRussell King	depends on MMU
713034d2f5aSAl Viro	select ARCH_MTD_XIP
71489c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
7156d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
716234b6cedSRussell King	select CLKSRC_MMIO
7177444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
718981d0f39SEric Miao	select GENERIC_CLOCKEVENTS
719157d2644SHaojian Zhuang	select GPIO_PXA
720a88264c2SRussell King	select TICK_ONESHOT
721bd5ce433SEric Miao	select PLAT_PXA
7226ac6b817SHaojian Zhuang	select SPARSE_IRQ
7234e234cc0SEric Miao	select AUTO_ZRELADDR
7248a97ae2fSEric Miao	select MULTI_IRQ_HANDLER
72515e0d9e3SArnd Bergmann	select ARM_CPU_SUSPEND if PM
726d0ee9f40SArnd Bergmann	select HAVE_IDE
727f999b8bdSMartin Michlmayr	help
7282c8086a5Seric miao	  Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
7291da177e4SLinus Torvalds
730788c9700SRussell Kingconfig ARCH_MSM
731788c9700SRussell King	bool "Qualcomm MSM"
7324b536b8dSSteve Muckle	select HAVE_CLK
73349cbe786SEric Miao	select GENERIC_CLOCKEVENTS
734923a081cSPavel Machek	select ARCH_REQUIRE_GPIOLIB
735bd32344aSStephen Boyd	select CLKDEV_LOOKUP
73649cbe786SEric Miao	help
7374b53eb4fSDaniel Walker	  Support for Qualcomm MSM/QSD based systems.  This runs on the
7384b53eb4fSDaniel Walker	  apps processor of the MSM/QSD and depends on a shared memory
7394b53eb4fSDaniel Walker	  interface to the modem processor which runs the baseband
7404b53eb4fSDaniel Walker	  stack and controls some vital subsystems
7414b53eb4fSDaniel Walker	  (clock and power control, etc).
74249cbe786SEric Miao
743c793c1b0SMagnus Dammconfig ARCH_SHMOBILE
7446d72ad35SPaul Mundt	bool "Renesas SH-Mobile / R-Mobile"
7456d72ad35SPaul Mundt	select HAVE_CLK
7465e93c6b4SPaul Mundt	select CLKDEV_LOOKUP
747aa3831cfSKyungmin Park	select HAVE_MACH_CLKDEV
7483b55658aSDave Martin	select HAVE_SMP
7496d72ad35SPaul Mundt	select GENERIC_CLOCKEVENTS
750ce5ea9f3SDave Martin	select MIGHT_HAVE_CACHE_L2X0
7516d72ad35SPaul Mundt	select NO_IOPORT
7526d72ad35SPaul Mundt	select SPARSE_IRQ
75360f1435cSMagnus Damm	select MULTI_IRQ_HANDLER
754e3e01091SRafael J. Wysocki	select PM_GENERIC_DOMAINS if PM
7550cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
756c793c1b0SMagnus Damm	help
7576d72ad35SPaul Mundt	  Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
758c793c1b0SMagnus Damm
7591da177e4SLinus Torvaldsconfig ARCH_RPC
7601da177e4SLinus Torvalds	bool "RiscPC"
7611da177e4SLinus Torvalds	select ARCH_ACORN
7621da177e4SLinus Torvalds	select FIQ
763a08b6b79Sviro@ZenIV.linux.org.uk	select ARCH_MAY_HAVE_PC_FDC
764341eb781SBen Dooks	select HAVE_PATA_PLATFORM
765065909b9SRussell King	select ISA_DMA_API
7665ea81769SAl Viro	select NO_IOPORT
76707f841b7SRussell King	select ARCH_SPARSEMEM_ENABLE
7685cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
769d0ee9f40SArnd Bergmann	select HAVE_IDE
770c334bc15SRob Herring	select NEED_MACH_IO_H
7710cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
7721da177e4SLinus Torvalds	help
7731da177e4SLinus Torvalds	  On the Acorn Risc-PC, Linux can support the internal IDE disk and
7741da177e4SLinus Torvalds	  CD-ROM interface, serial and parallel port, and the floppy drive.
7751da177e4SLinus Torvalds
7761da177e4SLinus Torvaldsconfig ARCH_SA1100
7771da177e4SLinus Torvalds	bool "SA1100-based"
778234b6cedSRussell King	select CLKSRC_MMIO
779c750815eSRussell King	select CPU_SA1100
780f7e68bbfSRussell King	select ISA
78105944d74SRussell King	select ARCH_SPARSEMEM_ENABLE
782034d2f5aSAl Viro	select ARCH_MTD_XIP
78389c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
7841937f5b9SRussell King	select CPU_FREQ
7853e238be2SRussell King	select GENERIC_CLOCKEVENTS
7864a8f8340SJett.Zhou	select CLKDEV_LOOKUP
7873e238be2SRussell King	select TICK_ONESHOT
7887444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
789d0ee9f40SArnd Bergmann	select HAVE_IDE
7900cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
791375dec92SRussell King	select SPARSE_IRQ
792f999b8bdSMartin Michlmayr	help
793f999b8bdSMartin Michlmayr	  Support for StrongARM 11x0 based boards.
7941da177e4SLinus Torvalds
795b130d5c2SKukjin Kimconfig ARCH_S3C24XX
796b130d5c2SKukjin Kim	bool "Samsung S3C24XX SoCs"
7970a938b97SDavid Brownell	select GENERIC_GPIO
7989d56c02aSBen Dooks	select ARCH_HAS_CPUFREQ
7999483a578SDavid Brownell	select HAVE_CLK
800e83626f2SThomas Abraham	select CLKDEV_LOOKUP
8015cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
80220676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
803b130d5c2SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
804b130d5c2SKukjin Kim	select HAVE_S3C2410_WATCHDOG if WATCHDOG
805c334bc15SRob Herring	select NEED_MACH_IO_H
8061da177e4SLinus Torvalds	help
807b130d5c2SKukjin Kim	  Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
808b130d5c2SKukjin Kim	  and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
809b130d5c2SKukjin Kim	  (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
810b130d5c2SKukjin Kim	  Samsung SMDK2410 development board (and derivatives).
81163b1f51bSBen Dooks
812a08ab637SBen Dooksconfig ARCH_S3C64XX
813a08ab637SBen Dooks	bool "Samsung S3C64XX"
81489f1fa08SBen Dooks	select PLAT_SAMSUNG
81589f0ce72SBen Dooks	select CPU_V6
81689f0ce72SBen Dooks	select ARM_VIC
817a08ab637SBen Dooks	select HAVE_CLK
8186700397aSMark Brown	select HAVE_TCM
819226e85f4SThomas Abraham	select CLKDEV_LOOKUP
82089f0ce72SBen Dooks	select NO_IOPORT
8215cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
82289c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
82389f0ce72SBen Dooks	select ARCH_REQUIRE_GPIOLIB
82489f0ce72SBen Dooks	select SAMSUNG_CLKSRC
82589f0ce72SBen Dooks	select SAMSUNG_IRQ_VIC_TIMER
82689f0ce72SBen Dooks	select S3C_GPIO_TRACK
82789f0ce72SBen Dooks	select S3C_DEV_NAND
82889f0ce72SBen Dooks	select USB_ARCH_HAS_OHCI
82989f0ce72SBen Dooks	select SAMSUNG_GPIOLIB_4BIT
83020676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
831c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
832a08ab637SBen Dooks	help
833a08ab637SBen Dooks	  Samsung S3C64XX series based systems
834a08ab637SBen Dooks
83549b7a491SKukjin Kimconfig ARCH_S5P64X0
83649b7a491SKukjin Kim	bool "Samsung S5P6440 S5P6450"
837c4ffccddSKukjin Kim	select CPU_V6
838c4ffccddSKukjin Kim	select GENERIC_GPIO
839c4ffccddSKukjin Kim	select HAVE_CLK
840d8b22d25SThomas Abraham	select CLKDEV_LOOKUP
8410665ccc4SChanwoo Choi	select CLKSRC_MMIO
842c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
8439e65bbf2SSangbeom Kim	select GENERIC_CLOCKEVENTS
84420676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
845754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
846c4ffccddSKukjin Kim	help
84749b7a491SKukjin Kim	  Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
84849b7a491SKukjin Kim	  SMDK6450.
849c4ffccddSKukjin Kim
850acc84707SMarek Szyprowskiconfig ARCH_S5PC100
851acc84707SMarek Szyprowski	bool "Samsung S5PC100"
8525a7652f2SByungho Min	select GENERIC_GPIO
8535a7652f2SByungho Min	select HAVE_CLK
85429e8eb0fSThomas Abraham	select CLKDEV_LOOKUP
8555a7652f2SByungho Min	select CPU_V7
856925c68cdSBen Dooks	select ARCH_USES_GETTIMEOFFSET
85720676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
858754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
859c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
8605a7652f2SByungho Min	help
861acc84707SMarek Szyprowski	  Samsung S5PC100 series based systems
8625a7652f2SByungho Min
863170f4e42SKukjin Kimconfig ARCH_S5PV210
864170f4e42SKukjin Kim	bool "Samsung S5PV210/S5PC110"
865170f4e42SKukjin Kim	select CPU_V7
866eecb6a84SKyungmin Park	select ARCH_SPARSEMEM_ENABLE
8670f75a96bSKamil Debski	select ARCH_HAS_HOLES_MEMORYMODEL
868170f4e42SKukjin Kim	select GENERIC_GPIO
869170f4e42SKukjin Kim	select HAVE_CLK
870b2a9dd46SThomas Abraham	select CLKDEV_LOOKUP
8710665ccc4SChanwoo Choi	select CLKSRC_MMIO
872d8144aeaSJaecheol Lee	select ARCH_HAS_CPUFREQ
8739e65bbf2SSangbeom Kim	select GENERIC_CLOCKEVENTS
87420676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
875754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
876c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
8770cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
878170f4e42SKukjin Kim	help
879170f4e42SKukjin Kim	  Samsung S5PV210/S5PC110 series based systems
880170f4e42SKukjin Kim
88183014579SKukjin Kimconfig ARCH_EXYNOS
88283014579SKukjin Kim	bool "SAMSUNG EXYNOS"
883cc0e72b8SChanghwan Youn	select CPU_V7
884f567fa6fSKyungmin Park	select ARCH_SPARSEMEM_ENABLE
8850f75a96bSKamil Debski	select ARCH_HAS_HOLES_MEMORYMODEL
886cc0e72b8SChanghwan Youn	select GENERIC_GPIO
887cc0e72b8SChanghwan Youn	select HAVE_CLK
888badc4f2dSThomas Abraham	select CLKDEV_LOOKUP
889b333fb16SSunyoung Kang	select ARCH_HAS_CPUFREQ
890cc0e72b8SChanghwan Youn	select GENERIC_CLOCKEVENTS
891754961a8SKukjin Kim	select HAVE_S3C_RTC if RTC_CLASS
89220676c15SKukjin Kim	select HAVE_S3C2410_I2C if I2C
893c39d8d55SKyungmin Park	select HAVE_S3C2410_WATCHDOG if WATCHDOG
8940cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
895cc0e72b8SChanghwan Youn	help
89683014579SKukjin Kim	  Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
897cc0e72b8SChanghwan Youn
8981da177e4SLinus Torvaldsconfig ARCH_SHARK
8991da177e4SLinus Torvalds	bool "Shark"
900c750815eSRussell King	select CPU_SA110
901f7e68bbfSRussell King	select ISA
902f7e68bbfSRussell King	select ISA_DMA
9033bca103aSNicolas Pitre	select ZONE_DMA
904f7e68bbfSRussell King	select PCI
9055cfc8ee0SJohn Stultz	select ARCH_USES_GETTIMEOFFSET
9060cdc8b92SNicolas Pitre	select NEED_MACH_MEMORY_H
907c334bc15SRob Herring	select NEED_MACH_IO_H
908f999b8bdSMartin Michlmayr	help
909f999b8bdSMartin Michlmayr	  Support for the StrongARM based Digital DNARD machine, also known
910f999b8bdSMartin Michlmayr	  as "Shark" (<http://www.shark-linux.de/shark.html>).
9111da177e4SLinus Torvalds
912d98aac75SLinus Walleijconfig ARCH_U300
913d98aac75SLinus Walleij	bool "ST-Ericsson U300 Series"
914d98aac75SLinus Walleij	depends on MMU
915234b6cedSRussell King	select CLKSRC_MMIO
916d98aac75SLinus Walleij	select CPU_ARM926T
917bc581770SLinus Walleij	select HAVE_TCM
918d98aac75SLinus Walleij	select ARM_AMBA
9195485c1e0SLinus Walleij	select ARM_PATCH_PHYS_VIRT
920d98aac75SLinus Walleij	select ARM_VIC
921d98aac75SLinus Walleij	select GENERIC_CLOCKEVENTS
9226d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
923aa3831cfSKyungmin Park	select HAVE_MACH_CLKDEV
924d98aac75SLinus Walleij	select GENERIC_GPIO
925cc890cd7SLinus Walleij	select ARCH_REQUIRE_GPIOLIB
926d98aac75SLinus Walleij	help
927d98aac75SLinus Walleij	  Support for ST-Ericsson U300 series mobile platforms.
928d98aac75SLinus Walleij
929ccf50e23SRussell Kingconfig ARCH_U8500
930ccf50e23SRussell King	bool "ST-Ericsson U8500 Series"
93167ae14fcSArnd Bergmann	depends on MMU
932ccf50e23SRussell King	select CPU_V7
933ccf50e23SRussell King	select ARM_AMBA
934ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
9356d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
93694bdc0e2SRabin Vincent	select ARCH_REQUIRE_GPIOLIB
9377c1a70e9SMartin Persson	select ARCH_HAS_CPUFREQ
9383b55658aSDave Martin	select HAVE_SMP
939ce5ea9f3SDave Martin	select MIGHT_HAVE_CACHE_L2X0
940ccf50e23SRussell King	help
941ccf50e23SRussell King	  Support for ST-Ericsson's Ux500 architecture
942ccf50e23SRussell King
943ccf50e23SRussell Kingconfig ARCH_NOMADIK
944ccf50e23SRussell King	bool "STMicroelectronics Nomadik"
945ccf50e23SRussell King	select ARM_AMBA
946ccf50e23SRussell King	select ARM_VIC
947ccf50e23SRussell King	select CPU_ARM926T
9486d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
949ccf50e23SRussell King	select GENERIC_CLOCKEVENTS
950ce5ea9f3SDave Martin	select MIGHT_HAVE_CACHE_L2X0
951ccf50e23SRussell King	select ARCH_REQUIRE_GPIOLIB
952ccf50e23SRussell King	help
953ccf50e23SRussell King	  Support for the Nomadik platform by ST-Ericsson
954ccf50e23SRussell King
9557c6337e2SKevin Hilmanconfig ARCH_DAVINCI
9567c6337e2SKevin Hilman	bool "TI DaVinci"
9577c6337e2SKevin Hilman	select GENERIC_CLOCKEVENTS
958dce1115bSDavid Brownell	select ARCH_REQUIRE_GPIOLIB
9593bca103aSNicolas Pitre	select ZONE_DMA
9609232fcc9SKevin Hilman	select HAVE_IDE
9616d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
96220e9969bSDavid Brownell	select GENERIC_ALLOCATOR
963dc7ad3b3SRussell King	select GENERIC_IRQ_CHIP
964ae88e05aSSekhar Nori	select ARCH_HAS_HOLES_MEMORYMODEL
9657c6337e2SKevin Hilman	help
9667c6337e2SKevin Hilman	  Support for TI's DaVinci platform.
9677c6337e2SKevin Hilman
9683b938be6SRussell Kingconfig ARCH_OMAP
9693b938be6SRussell King	bool "TI OMAP"
9709483a578SDavid Brownell	select HAVE_CLK
9717444a72eSMichael Buesch	select ARCH_REQUIRE_GPIOLIB
97289c52ed4SBen Dooks	select ARCH_HAS_CPUFREQ
973354a183fSRussell King - ARM Linux	select CLKSRC_MMIO
97406cad098SKevin Hilman	select GENERIC_CLOCKEVENTS
9759af915daSSriram	select ARCH_HAS_HOLES_MEMORYMODEL
9763b938be6SRussell King	help
9776e457bb0SLennert Buytenhek	  Support for TI's OMAP platform (OMAP1/2/3/4).
9783b938be6SRussell King
979cee37e50Sviresh kumarconfig PLAT_SPEAR
980cee37e50Sviresh kumar	bool "ST SPEAr"
981cee37e50Sviresh kumar	select ARM_AMBA
982cee37e50Sviresh kumar	select ARCH_REQUIRE_GPIOLIB
9836d803ba7SJean-Christop PLAGNIOL-VILLARD	select CLKDEV_LOOKUP
984d6e15d78SRussell King	select CLKSRC_MMIO
985cee37e50Sviresh kumar	select GENERIC_CLOCKEVENTS
986cee37e50Sviresh kumar	select HAVE_CLK
987cee37e50Sviresh kumar	help
988cee37e50Sviresh kumar	  Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
989cee37e50Sviresh kumar
99021f47fbcSAlexey Charkovconfig ARCH_VT8500
99121f47fbcSAlexey Charkov	bool "VIA/WonderMedia 85xx"
99221f47fbcSAlexey Charkov	select CPU_ARM926T
99321f47fbcSAlexey Charkov	select GENERIC_GPIO
99421f47fbcSAlexey Charkov	select ARCH_HAS_CPUFREQ
99521f47fbcSAlexey Charkov	select GENERIC_CLOCKEVENTS
99621f47fbcSAlexey Charkov	select ARCH_REQUIRE_GPIOLIB
99721f47fbcSAlexey Charkov	select HAVE_PWM
99821f47fbcSAlexey Charkov	help
99921f47fbcSAlexey Charkov	  Support for VIA/WonderMedia VT8500/WM85xx System-on-Chip.
100002c981c0SBinghua Duan
1001b85a3ef4SJohn Linnconfig ARCH_ZYNQ
1002b85a3ef4SJohn Linn	bool "Xilinx Zynq ARM Cortex A9 Platform"
100302c981c0SBinghua Duan	select CPU_V7
100402c981c0SBinghua Duan	select GENERIC_CLOCKEVENTS
100502c981c0SBinghua Duan	select CLKDEV_LOOKUP
1006b85a3ef4SJohn Linn	select ARM_GIC
1007b85a3ef4SJohn Linn	select ARM_AMBA
1008b85a3ef4SJohn Linn	select ICST
1009ce5ea9f3SDave Martin	select MIGHT_HAVE_CACHE_L2X0
101002c981c0SBinghua Duan	select USE_OF
101102c981c0SBinghua Duan	help
1012b85a3ef4SJohn Linn	  Support for Xilinx Zynq ARM Cortex A9 Platform
10131da177e4SLinus Torvaldsendchoice
10141da177e4SLinus Torvalds
1015ccf50e23SRussell King#
1016ccf50e23SRussell King# This is sorted alphabetically by mach-* pathname.  However, plat-*
1017ccf50e23SRussell King# Kconfigs may be included either alphabetically (according to the
1018ccf50e23SRussell King# plat- suffix) or along side the corresponding mach-* source.
1019ccf50e23SRussell King#
102095b8f20fSRussell Kingsource "arch/arm/mach-at91/Kconfig"
102195b8f20fSRussell King
102295b8f20fSRussell Kingsource "arch/arm/mach-bcmring/Kconfig"
102395b8f20fSRussell King
10241da177e4SLinus Torvaldssource "arch/arm/mach-clps711x/Kconfig"
10251da177e4SLinus Torvalds
1026d94f944eSAnton Vorontsovsource "arch/arm/mach-cns3xxx/Kconfig"
1027d94f944eSAnton Vorontsov
102895b8f20fSRussell Kingsource "arch/arm/mach-davinci/Kconfig"
102995b8f20fSRussell King
103095b8f20fSRussell Kingsource "arch/arm/mach-dove/Kconfig"
103195b8f20fSRussell King
1032e7736d47SLennert Buytenheksource "arch/arm/mach-ep93xx/Kconfig"
1033e7736d47SLennert Buytenhek
10341da177e4SLinus Torvaldssource "arch/arm/mach-footbridge/Kconfig"
10351da177e4SLinus Torvalds
103659d3a193SPaulius Zaleckassource "arch/arm/mach-gemini/Kconfig"
103759d3a193SPaulius Zaleckas
103895b8f20fSRussell Kingsource "arch/arm/mach-h720x/Kconfig"
103995b8f20fSRussell King
10401da177e4SLinus Torvaldssource "arch/arm/mach-integrator/Kconfig"
10411da177e4SLinus Torvalds
10423f7e5815SLennert Buytenheksource "arch/arm/mach-iop32x/Kconfig"
10433f7e5815SLennert Buytenhek
10443f7e5815SLennert Buytenheksource "arch/arm/mach-iop33x/Kconfig"
10451da177e4SLinus Torvalds
1046285f5fa7SDan Williamssource "arch/arm/mach-iop13xx/Kconfig"
1047285f5fa7SDan Williams
10481da177e4SLinus Torvaldssource "arch/arm/mach-ixp4xx/Kconfig"
10491da177e4SLinus Torvalds
10501da177e4SLinus Torvaldssource "arch/arm/mach-ixp2000/Kconfig"
10511da177e4SLinus Torvalds
1052c4713074SLennert Buytenheksource "arch/arm/mach-ixp23xx/Kconfig"
1053c4713074SLennert Buytenhek
105495b8f20fSRussell Kingsource "arch/arm/mach-kirkwood/Kconfig"
105595b8f20fSRussell King
105695b8f20fSRussell Kingsource "arch/arm/mach-ks8695/Kconfig"
105795b8f20fSRussell King
105840805949SKevin Wellssource "arch/arm/mach-lpc32xx/Kconfig"
105940805949SKevin Wells
106095b8f20fSRussell Kingsource "arch/arm/mach-msm/Kconfig"
106195b8f20fSRussell King
1062794d15b2SStanislav Samsonovsource "arch/arm/mach-mv78xx0/Kconfig"
1063794d15b2SStanislav Samsonov
106495b8f20fSRussell Kingsource "arch/arm/plat-mxc/Kconfig"
10651da177e4SLinus Torvalds
10661d3f33d5SShawn Guosource "arch/arm/mach-mxs/Kconfig"
10671d3f33d5SShawn Guo
106895b8f20fSRussell Kingsource "arch/arm/mach-netx/Kconfig"
106949cbe786SEric Miao
107095b8f20fSRussell Kingsource "arch/arm/mach-nomadik/Kconfig"
107195b8f20fSRussell Kingsource "arch/arm/plat-nomadik/Kconfig"
107295b8f20fSRussell King
1073d48af15eSTony Lindgrensource "arch/arm/plat-omap/Kconfig"
1074d48af15eSTony Lindgren
1075d48af15eSTony Lindgrensource "arch/arm/mach-omap1/Kconfig"
10761da177e4SLinus Torvalds
10771dbae815STony Lindgrensource "arch/arm/mach-omap2/Kconfig"
10781dbae815STony Lindgren
10799dd0b194SLennert Buytenheksource "arch/arm/mach-orion5x/Kconfig"
1080585cf175STzachi Perelstein
108195b8f20fSRussell Kingsource "arch/arm/mach-pxa/Kconfig"
108295b8f20fSRussell Kingsource "arch/arm/plat-pxa/Kconfig"
10831da177e4SLinus Torvalds
108495b8f20fSRussell Kingsource "arch/arm/mach-mmp/Kconfig"
108595b8f20fSRussell King
108695b8f20fSRussell Kingsource "arch/arm/mach-realview/Kconfig"
108795b8f20fSRussell King
108895b8f20fSRussell Kingsource "arch/arm/mach-sa1100/Kconfig"
1089edabd38eSSaeed Bishara
1090cf383678SBen Dookssource "arch/arm/plat-samsung/Kconfig"
1091a21765a7SBen Dookssource "arch/arm/plat-s3c24xx/Kconfig"
1092c4ffccddSKukjin Kimsource "arch/arm/plat-s5p/Kconfig"
1093a21765a7SBen Dooks
1094cee37e50Sviresh kumarsource "arch/arm/plat-spear/Kconfig"
1095a21765a7SBen Dooks
109685fd6d63SKukjin Kimsource "arch/arm/mach-s3c24xx/Kconfig"
1097b130d5c2SKukjin Kimif ARCH_S3C24XX
1098a21765a7SBen Dookssource "arch/arm/mach-s3c2412/Kconfig"
1099a21765a7SBen Dookssource "arch/arm/mach-s3c2440/Kconfig"
1100a21765a7SBen Dooksendif
11011da177e4SLinus Torvalds
1102a08ab637SBen Dooksif ARCH_S3C64XX
1103431107eaSBen Dookssource "arch/arm/mach-s3c64xx/Kconfig"
1104a08ab637SBen Dooksendif
1105a08ab637SBen Dooks
110649b7a491SKukjin Kimsource "arch/arm/mach-s5p64x0/Kconfig"
1107c4ffccddSKukjin Kim
11085a7652f2SByungho Minsource "arch/arm/mach-s5pc100/Kconfig"
11095a7652f2SByungho Min
1110170f4e42SKukjin Kimsource "arch/arm/mach-s5pv210/Kconfig"
1111170f4e42SKukjin Kim
111283014579SKukjin Kimsource "arch/arm/mach-exynos/Kconfig"
1113cc0e72b8SChanghwan Youn
1114882d01f9SRussell Kingsource "arch/arm/mach-shmobile/Kconfig"
11151da177e4SLinus Torvalds
1116c5f80065SErik Gillingsource "arch/arm/mach-tegra/Kconfig"
1117c5f80065SErik Gilling
111895b8f20fSRussell Kingsource "arch/arm/mach-u300/Kconfig"
11191da177e4SLinus Torvalds
112095b8f20fSRussell Kingsource "arch/arm/mach-ux500/Kconfig"
11211da177e4SLinus Torvalds
11221da177e4SLinus Torvaldssource "arch/arm/mach-versatile/Kconfig"
11231da177e4SLinus Torvalds
1124ceade897SRussell Kingsource "arch/arm/mach-vexpress/Kconfig"
1125420c34e4SRussell Kingsource "arch/arm/plat-versatile/Kconfig"
1126ceade897SRussell King
112721f47fbcSAlexey Charkovsource "arch/arm/mach-vt8500/Kconfig"
112821f47fbcSAlexey Charkov
11297ec80ddfSwanzongshunsource "arch/arm/mach-w90x900/Kconfig"
11307ec80ddfSwanzongshun
11311da177e4SLinus Torvalds# Definitions to make life easier
11321da177e4SLinus Torvaldsconfig ARCH_ACORN
11331da177e4SLinus Torvalds	bool
11341da177e4SLinus Torvalds
11357ae1f7ecSLennert Buytenhekconfig PLAT_IOP
11367ae1f7ecSLennert Buytenhek	bool
1137469d3044SMikael Pettersson	select GENERIC_CLOCKEVENTS
11387ae1f7ecSLennert Buytenhek
113969b02f6aSLennert Buytenhekconfig PLAT_ORION
114069b02f6aSLennert Buytenhek	bool
1141bfe45e0bSRussell King	select CLKSRC_MMIO
1142dc7ad3b3SRussell King	select GENERIC_IRQ_CHIP
114369b02f6aSLennert Buytenhek
1144bd5ce433SEric Miaoconfig PLAT_PXA
1145bd5ce433SEric Miao	bool
1146bd5ce433SEric Miao
1147f4b8b319SRussell Kingconfig PLAT_VERSATILE
1148f4b8b319SRussell King	bool
1149f4b8b319SRussell King
1150e3887714SRussell Kingconfig ARM_TIMER_SP804
1151e3887714SRussell King	bool
1152bfe45e0bSRussell King	select CLKSRC_MMIO
1153a7bf6162SRob Herring	select HAVE_SCHED_CLOCK
1154e3887714SRussell King
11551da177e4SLinus Torvaldssource arch/arm/mm/Kconfig
11561da177e4SLinus Torvalds
1157958cab0fSRussell Kingconfig ARM_NR_BANKS
1158958cab0fSRussell King	int
1159958cab0fSRussell King	default 16 if ARCH_EP93XX
1160958cab0fSRussell King	default 8
1161958cab0fSRussell King
1162afe4b25eSLennert Buytenhekconfig IWMMXT
1163afe4b25eSLennert Buytenhek	bool "Enable iWMMXt support"
1164ef6c8445SHaojian Zhuang	depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1165ef6c8445SHaojian Zhuang	default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
1166afe4b25eSLennert Buytenhek	help
1167afe4b25eSLennert Buytenhek	  Enable support for iWMMXt context switching at run time if
1168afe4b25eSLennert Buytenhek	  running on a CPU that supports it.
1169afe4b25eSLennert Buytenhek
11701da177e4SLinus Torvaldsconfig XSCALE_PMU
11711da177e4SLinus Torvalds	bool
1172bfc994b5SPaul Bolle	depends on CPU_XSCALE
11731da177e4SLinus Torvalds	default y
11741da177e4SLinus Torvalds
11750f4f0672SJamie Ilesconfig CPU_HAS_PMU
1176e399b1a4SRussell King	depends on (CPU_V6 || CPU_V6K || CPU_V7 || XSCALE_PMU) && \
11778954bb0dSWill Deacon		   (!ARCH_OMAP3 || OMAP3_EMU)
11780f4f0672SJamie Iles	default y
11790f4f0672SJamie Iles	bool
11800f4f0672SJamie Iles
118152108641Seric miaoconfig MULTI_IRQ_HANDLER
118252108641Seric miao	bool
118352108641Seric miao	help
118452108641Seric miao	  Allow each machine to specify it's own IRQ handler at run time.
118552108641Seric miao
11863b93e7b0SHyok S. Choiif !MMU
11873b93e7b0SHyok S. Choisource "arch/arm/Kconfig-nommu"
11883b93e7b0SHyok S. Choiendif
11893b93e7b0SHyok S. Choi
1190f0c4b8d6SWill Deaconconfig ARM_ERRATA_326103
1191f0c4b8d6SWill Deacon	bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1192f0c4b8d6SWill Deacon	depends on CPU_V6
1193f0c4b8d6SWill Deacon	help
1194f0c4b8d6SWill Deacon	  Executing a SWP instruction to read-only memory does not set bit 11
1195f0c4b8d6SWill Deacon	  of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1196f0c4b8d6SWill Deacon	  treat the access as a read, preventing a COW from occurring and
1197f0c4b8d6SWill Deacon	  causing the faulting task to livelock.
1198f0c4b8d6SWill Deacon
11999cba3cccSCatalin Marinasconfig ARM_ERRATA_411920
12009cba3cccSCatalin Marinas	bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
1201e399b1a4SRussell King	depends on CPU_V6 || CPU_V6K
12029cba3cccSCatalin Marinas	help
12039cba3cccSCatalin Marinas	  Invalidation of the Instruction Cache operation can
12049cba3cccSCatalin Marinas	  fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
12059cba3cccSCatalin Marinas	  It does not affect the MPCore. This option enables the ARM Ltd.
12069cba3cccSCatalin Marinas	  recommended workaround.
12079cba3cccSCatalin Marinas
12087ce236fcSCatalin Marinasconfig ARM_ERRATA_430973
12097ce236fcSCatalin Marinas	bool "ARM errata: Stale prediction on replaced interworking branch"
12107ce236fcSCatalin Marinas	depends on CPU_V7
12117ce236fcSCatalin Marinas	help
12127ce236fcSCatalin Marinas	  This option enables the workaround for the 430973 Cortex-A8
12137ce236fcSCatalin Marinas	  (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
12147ce236fcSCatalin Marinas	  interworking branch is replaced with another code sequence at the
12157ce236fcSCatalin Marinas	  same virtual address, whether due to self-modifying code or virtual
12167ce236fcSCatalin Marinas	  to physical address re-mapping, Cortex-A8 does not recover from the
12177ce236fcSCatalin Marinas	  stale interworking branch prediction. This results in Cortex-A8
12187ce236fcSCatalin Marinas	  executing the new code sequence in the incorrect ARM or Thumb state.
12197ce236fcSCatalin Marinas	  The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
12207ce236fcSCatalin Marinas	  and also flushes the branch target cache at every context switch.
12217ce236fcSCatalin Marinas	  Note that setting specific bits in the ACTLR register may not be
12227ce236fcSCatalin Marinas	  available in non-secure mode.
12237ce236fcSCatalin Marinas
1224855c551fSCatalin Marinasconfig ARM_ERRATA_458693
1225855c551fSCatalin Marinas	bool "ARM errata: Processor deadlock when a false hazard is created"
1226855c551fSCatalin Marinas	depends on CPU_V7
1227855c551fSCatalin Marinas	help
1228855c551fSCatalin Marinas	  This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1229855c551fSCatalin Marinas	  erratum. For very specific sequences of memory operations, it is
1230855c551fSCatalin Marinas	  possible for a hazard condition intended for a cache line to instead
1231855c551fSCatalin Marinas	  be incorrectly associated with a different cache line. This false
1232855c551fSCatalin Marinas	  hazard might then cause a processor deadlock. The workaround enables
1233855c551fSCatalin Marinas	  the L1 caching of the NEON accesses and disables the PLD instruction
1234855c551fSCatalin Marinas	  in the ACTLR register. Note that setting specific bits in the ACTLR
1235855c551fSCatalin Marinas	  register may not be available in non-secure mode.
1236855c551fSCatalin Marinas
12370516e464SCatalin Marinasconfig ARM_ERRATA_460075
12380516e464SCatalin Marinas	bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
12390516e464SCatalin Marinas	depends on CPU_V7
12400516e464SCatalin Marinas	help
12410516e464SCatalin Marinas	  This option enables the workaround for the 460075 Cortex-A8 (r2p0)
12420516e464SCatalin Marinas	  erratum. Any asynchronous access to the L2 cache may encounter a
12430516e464SCatalin Marinas	  situation in which recent store transactions to the L2 cache are lost
12440516e464SCatalin Marinas	  and overwritten with stale memory contents from external memory. The
12450516e464SCatalin Marinas	  workaround disables the write-allocate mode for the L2 cache via the
12460516e464SCatalin Marinas	  ACTLR register. Note that setting specific bits in the ACTLR register
12470516e464SCatalin Marinas	  may not be available in non-secure mode.
12480516e464SCatalin Marinas
12499f05027cSWill Deaconconfig ARM_ERRATA_742230
12509f05027cSWill Deacon	bool "ARM errata: DMB operation may be faulty"
12519f05027cSWill Deacon	depends on CPU_V7 && SMP
12529f05027cSWill Deacon	help
12539f05027cSWill Deacon	  This option enables the workaround for the 742230 Cortex-A9
12549f05027cSWill Deacon	  (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
12559f05027cSWill Deacon	  between two write operations may not ensure the correct visibility
12569f05027cSWill Deacon	  ordering of the two writes. This workaround sets a specific bit in
12579f05027cSWill Deacon	  the diagnostic register of the Cortex-A9 which causes the DMB
12589f05027cSWill Deacon	  instruction to behave as a DSB, ensuring the correct behaviour of
12599f05027cSWill Deacon	  the two writes.
12609f05027cSWill Deacon
1261a672e99bSWill Deaconconfig ARM_ERRATA_742231
1262a672e99bSWill Deacon	bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1263a672e99bSWill Deacon	depends on CPU_V7 && SMP
1264a672e99bSWill Deacon	help
1265a672e99bSWill Deacon	  This option enables the workaround for the 742231 Cortex-A9
1266a672e99bSWill Deacon	  (r2p0..r2p2) erratum. Under certain conditions, specific to the
1267a672e99bSWill Deacon	  Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1268a672e99bSWill Deacon	  accessing some data located in the same cache line, may get corrupted
1269a672e99bSWill Deacon	  data due to bad handling of the address hazard when the line gets
1270a672e99bSWill Deacon	  replaced from one of the CPUs at the same time as another CPU is
1271a672e99bSWill Deacon	  accessing it. This workaround sets specific bits in the diagnostic
1272a672e99bSWill Deacon	  register of the Cortex-A9 which reduces the linefill issuing
1273a672e99bSWill Deacon	  capabilities of the processor.
1274a672e99bSWill Deacon
12759e65582aSSantosh Shilimkarconfig PL310_ERRATA_588369
1276fa0ce403SWill Deacon	bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
12772839e06cSSantosh Shilimkar	depends on CACHE_L2X0
12789e65582aSSantosh Shilimkar	help
12799e65582aSSantosh Shilimkar	   The PL310 L2 cache controller implements three types of Clean &
12809e65582aSSantosh Shilimkar	   Invalidate maintenance operations: by Physical Address
12819e65582aSSantosh Shilimkar	   (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
12829e65582aSSantosh Shilimkar	   They are architecturally defined to behave as the execution of a
12839e65582aSSantosh Shilimkar	   clean operation followed immediately by an invalidate operation,
12849e65582aSSantosh Shilimkar	   both performing to the same memory location. This functionality
12859e65582aSSantosh Shilimkar	   is not correctly implemented in PL310 as clean lines are not
12862839e06cSSantosh Shilimkar	   invalidated as a result of these operations.
1287cdf357f1SWill Deacon
1288cdf357f1SWill Deaconconfig ARM_ERRATA_720789
1289cdf357f1SWill Deacon	bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1290e66dc745SDave Martin	depends on CPU_V7
1291cdf357f1SWill Deacon	help
1292cdf357f1SWill Deacon	  This option enables the workaround for the 720789 Cortex-A9 (prior to
1293cdf357f1SWill Deacon	  r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1294cdf357f1SWill Deacon	  broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1295cdf357f1SWill Deacon	  As a consequence of this erratum, some TLB entries which should be
1296cdf357f1SWill Deacon	  invalidated are not, resulting in an incoherency in the system page
1297cdf357f1SWill Deacon	  tables. The workaround changes the TLB flushing routines to invalidate
1298cdf357f1SWill Deacon	  entries regardless of the ASID.
1299475d92fcSWill Deacon
13001f0090a1SRussell Kingconfig PL310_ERRATA_727915
1301fa0ce403SWill Deacon	bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
13021f0090a1SRussell King	depends on CACHE_L2X0
13031f0090a1SRussell King	help
13041f0090a1SRussell King	  PL310 implements the Clean & Invalidate by Way L2 cache maintenance
13051f0090a1SRussell King	  operation (offset 0x7FC). This operation runs in background so that
13061f0090a1SRussell King	  PL310 can handle normal accesses while it is in progress. Under very
13071f0090a1SRussell King	  rare circumstances, due to this erratum, write data can be lost when
13081f0090a1SRussell King	  PL310 treats a cacheable write transaction during a Clean &
13091f0090a1SRussell King	  Invalidate by Way operation.
13101f0090a1SRussell King
1311475d92fcSWill Deaconconfig ARM_ERRATA_743622
1312475d92fcSWill Deacon	bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1313475d92fcSWill Deacon	depends on CPU_V7
1314475d92fcSWill Deacon	help
1315475d92fcSWill Deacon	  This option enables the workaround for the 743622 Cortex-A9
1316efbc74acSWill Deacon	  (r2p*) erratum. Under very rare conditions, a faulty
1317475d92fcSWill Deacon	  optimisation in the Cortex-A9 Store Buffer may lead to data
1318475d92fcSWill Deacon	  corruption. This workaround sets a specific bit in the diagnostic
1319475d92fcSWill Deacon	  register of the Cortex-A9 which disables the Store Buffer
1320475d92fcSWill Deacon	  optimisation, preventing the defect from occurring. This has no
1321475d92fcSWill Deacon	  visible impact on the overall performance or power consumption of the
1322475d92fcSWill Deacon	  processor.
1323475d92fcSWill Deacon
13249a27c27cSWill Deaconconfig ARM_ERRATA_751472
13259a27c27cSWill Deacon	bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
1326ba90c516SDave Martin	depends on CPU_V7
13279a27c27cSWill Deacon	help
13289a27c27cSWill Deacon	  This option enables the workaround for the 751472 Cortex-A9 (prior
13299a27c27cSWill Deacon	  to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
13309a27c27cSWill Deacon	  completion of a following broadcasted operation if the second
13319a27c27cSWill Deacon	  operation is received by a CPU before the ICIALLUIS has completed,
13329a27c27cSWill Deacon	  potentially leading to corrupted entries in the cache or TLB.
13339a27c27cSWill Deacon
1334fa0ce403SWill Deaconconfig PL310_ERRATA_753970
1335fa0ce403SWill Deacon	bool "PL310 errata: cache sync operation may be faulty"
1336885028e4SSrinidhi Kasagar	depends on CACHE_PL310
1337885028e4SSrinidhi Kasagar	help
1338885028e4SSrinidhi Kasagar	  This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1339885028e4SSrinidhi Kasagar
1340885028e4SSrinidhi Kasagar	  Under some condition the effect of cache sync operation on
1341885028e4SSrinidhi Kasagar	  the store buffer still remains when the operation completes.
1342885028e4SSrinidhi Kasagar	  This means that the store buffer is always asked to drain and
1343885028e4SSrinidhi Kasagar	  this prevents it from merging any further writes. The workaround
1344885028e4SSrinidhi Kasagar	  is to replace the normal offset of cache sync operation (0x730)
1345885028e4SSrinidhi Kasagar	  by another offset targeting an unmapped PL310 register 0x740.
1346885028e4SSrinidhi Kasagar	  This has the same effect as the cache sync operation: store buffer
1347885028e4SSrinidhi Kasagar	  drain and waiting for all buffers empty.
1348885028e4SSrinidhi Kasagar
1349fcbdc5feSWill Deaconconfig ARM_ERRATA_754322
1350fcbdc5feSWill Deacon	bool "ARM errata: possible faulty MMU translations following an ASID switch"
1351fcbdc5feSWill Deacon	depends on CPU_V7
1352fcbdc5feSWill Deacon	help
1353fcbdc5feSWill Deacon	  This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1354fcbdc5feSWill Deacon	  r3p*) erratum. A speculative memory access may cause a page table walk
1355fcbdc5feSWill Deacon	  which starts prior to an ASID switch but completes afterwards. This
1356fcbdc5feSWill Deacon	  can populate the micro-TLB with a stale entry which may be hit with
1357fcbdc5feSWill Deacon	  the new ASID. This workaround places two dsb instructions in the mm
1358fcbdc5feSWill Deacon	  switching code so that no page table walks can cross the ASID switch.
1359fcbdc5feSWill Deacon
13605dab26afSWill Deaconconfig ARM_ERRATA_754327
13615dab26afSWill Deacon	bool "ARM errata: no automatic Store Buffer drain"
13625dab26afSWill Deacon	depends on CPU_V7 && SMP
13635dab26afSWill Deacon	help
13645dab26afSWill Deacon	  This option enables the workaround for the 754327 Cortex-A9 (prior to
13655dab26afSWill Deacon	  r2p0) erratum. The Store Buffer does not have any automatic draining
13665dab26afSWill Deacon	  mechanism and therefore a livelock may occur if an external agent
13675dab26afSWill Deacon	  continuously polls a memory location waiting to observe an update.
13685dab26afSWill Deacon	  This workaround defines cpu_relax() as smp_mb(), preventing correctly
13695dab26afSWill Deacon	  written polling loops from denying visibility of updates to memory.
13705dab26afSWill Deacon
1371145e10e1SCatalin Marinasconfig ARM_ERRATA_364296
1372145e10e1SCatalin Marinas	bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1373145e10e1SCatalin Marinas	depends on CPU_V6 && !SMP
1374145e10e1SCatalin Marinas	help
1375145e10e1SCatalin Marinas	  This options enables the workaround for the 364296 ARM1136
1376145e10e1SCatalin Marinas	  r0p2 erratum (possible cache data corruption with
1377145e10e1SCatalin Marinas	  hit-under-miss enabled). It sets the undocumented bit 31 in
1378145e10e1SCatalin Marinas	  the auxiliary control register and the FI bit in the control
1379145e10e1SCatalin Marinas	  register, thus disabling hit-under-miss without putting the
1380145e10e1SCatalin Marinas	  processor into full low interrupt latency mode. ARM11MPCore
1381145e10e1SCatalin Marinas	  is not affected.
1382145e10e1SCatalin Marinas
1383f630c1bdSWill Deaconconfig ARM_ERRATA_764369
1384f630c1bdSWill Deacon	bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1385f630c1bdSWill Deacon	depends on CPU_V7 && SMP
1386f630c1bdSWill Deacon	help
1387f630c1bdSWill Deacon	  This option enables the workaround for erratum 764369
1388f630c1bdSWill Deacon	  affecting Cortex-A9 MPCore with two or more processors (all
1389f630c1bdSWill Deacon	  current revisions). Under certain timing circumstances, a data
1390f630c1bdSWill Deacon	  cache line maintenance operation by MVA targeting an Inner
1391f630c1bdSWill Deacon	  Shareable memory region may fail to proceed up to either the
1392f630c1bdSWill Deacon	  Point of Coherency or to the Point of Unification of the
1393f630c1bdSWill Deacon	  system. This workaround adds a DSB instruction before the
1394f630c1bdSWill Deacon	  relevant cache maintenance functions and sets a specific bit
1395f630c1bdSWill Deacon	  in the diagnostic control register of the SCU.
1396f630c1bdSWill Deacon
139711ed0ba1SWill Deaconconfig PL310_ERRATA_769419
139811ed0ba1SWill Deacon	bool "PL310 errata: no automatic Store Buffer drain"
139911ed0ba1SWill Deacon	depends on CACHE_L2X0
140011ed0ba1SWill Deacon	help
140111ed0ba1SWill Deacon	  On revisions of the PL310 prior to r3p2, the Store Buffer does
140211ed0ba1SWill Deacon	  not automatically drain. This can cause normal, non-cacheable
140311ed0ba1SWill Deacon	  writes to be retained when the memory system is idle, leading
140411ed0ba1SWill Deacon	  to suboptimal I/O performance for drivers using coherent DMA.
140511ed0ba1SWill Deacon	  This option adds a write barrier to the cpu_idle loop so that,
140611ed0ba1SWill Deacon	  on systems with an outer cache, the store buffer is drained
140711ed0ba1SWill Deacon	  explicitly.
140811ed0ba1SWill Deacon
14091da177e4SLinus Torvaldsendmenu
14101da177e4SLinus Torvalds
14111da177e4SLinus Torvaldssource "arch/arm/common/Kconfig"
14121da177e4SLinus Torvalds
14131da177e4SLinus Torvaldsmenu "Bus support"
14141da177e4SLinus Torvalds
14151da177e4SLinus Torvaldsconfig ARM_AMBA
14161da177e4SLinus Torvalds	bool
14171da177e4SLinus Torvalds
14181da177e4SLinus Torvaldsconfig ISA
14191da177e4SLinus Torvalds	bool
14201da177e4SLinus Torvalds	help
14211da177e4SLinus Torvalds	  Find out whether you have ISA slots on your motherboard.  ISA is the
14221da177e4SLinus Torvalds	  name of a bus system, i.e. the way the CPU talks to the other stuff
14231da177e4SLinus Torvalds	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
14241da177e4SLinus Torvalds	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
14251da177e4SLinus Torvalds	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
14261da177e4SLinus Torvalds
1427065909b9SRussell King# Select ISA DMA controller support
14281da177e4SLinus Torvaldsconfig ISA_DMA
14291da177e4SLinus Torvalds	bool
1430065909b9SRussell King	select ISA_DMA_API
14311da177e4SLinus Torvalds
1432065909b9SRussell King# Select ISA DMA interface
14335cae841bSAl Viroconfig ISA_DMA_API
14345cae841bSAl Viro	bool
14355cae841bSAl Viro
14361da177e4SLinus Torvaldsconfig PCI
14370b05da72SHans Ulli Kroll	bool "PCI support" if MIGHT_HAVE_PCI
14381da177e4SLinus Torvalds	help
14391da177e4SLinus Torvalds	  Find out whether you have a PCI motherboard. PCI is the name of a
14401da177e4SLinus Torvalds	  bus system, i.e. the way the CPU talks to the other stuff inside
14411da177e4SLinus Torvalds	  your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
14421da177e4SLinus Torvalds	  VESA. If you have PCI, say Y, otherwise N.
14431da177e4SLinus Torvalds
144452882173SAnton Vorontsovconfig PCI_DOMAINS
144552882173SAnton Vorontsov	bool
144652882173SAnton Vorontsov	depends on PCI
144752882173SAnton Vorontsov
1448b080ac8aSMarcelo Roberto Jimenezconfig PCI_NANOENGINE
1449b080ac8aSMarcelo Roberto Jimenez	bool "BSE nanoEngine PCI support"
1450b080ac8aSMarcelo Roberto Jimenez	depends on SA1100_NANOENGINE
1451b080ac8aSMarcelo Roberto Jimenez	help
1452b080ac8aSMarcelo Roberto Jimenez	  Enable PCI on the BSE nanoEngine board.
1453b080ac8aSMarcelo Roberto Jimenez
145436e23590SMatthew Wilcoxconfig PCI_SYSCALL
145536e23590SMatthew Wilcox	def_bool PCI
145636e23590SMatthew Wilcox
14571da177e4SLinus Torvalds# Select the host bridge type
14581da177e4SLinus Torvaldsconfig PCI_HOST_VIA82C505
14591da177e4SLinus Torvalds	bool
14601da177e4SLinus Torvalds	depends on PCI && ARCH_SHARK
14611da177e4SLinus Torvalds	default y
14621da177e4SLinus Torvalds
1463a0113a99SMike Rapoportconfig PCI_HOST_ITE8152
1464a0113a99SMike Rapoport	bool
1465a0113a99SMike Rapoport	depends on PCI && MACH_ARMCORE
1466a0113a99SMike Rapoport	default y
1467a0113a99SMike Rapoport	select DMABOUNCE
1468a0113a99SMike Rapoport
14691da177e4SLinus Torvaldssource "drivers/pci/Kconfig"
14701da177e4SLinus Torvalds
14711da177e4SLinus Torvaldssource "drivers/pcmcia/Kconfig"
14721da177e4SLinus Torvalds
14731da177e4SLinus Torvaldsendmenu
14741da177e4SLinus Torvalds
14751da177e4SLinus Torvaldsmenu "Kernel Features"
14761da177e4SLinus Torvalds
14770567a0c0SKevin Hilmansource "kernel/time/Kconfig"
14780567a0c0SKevin Hilman
14793b55658aSDave Martinconfig HAVE_SMP
14803b55658aSDave Martin	bool
14813b55658aSDave Martin	help
14823b55658aSDave Martin	  This option should be selected by machines which have an SMP-
14833b55658aSDave Martin	  capable CPU.
14843b55658aSDave Martin
14853b55658aSDave Martin	  The only effect of this option is to make the SMP-related
14863b55658aSDave Martin	  options available to the user for configuration.
14873b55658aSDave Martin
14881da177e4SLinus Torvaldsconfig SMP
1489bb2d8130SRussell King	bool "Symmetric Multi-Processing"
1490fbb4ddacSRussell King	depends on CPU_V6K || CPU_V7
1491bc28248eSRussell King	depends on GENERIC_CLOCKEVENTS
14923b55658aSDave Martin	depends on HAVE_SMP
14939934ebb8SArnd Bergmann	depends on MMU
1494f6dd9fa5SJens Axboe	select USE_GENERIC_SMP_HELPERS
149589c3dedfSDaniel Walker	select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
14961da177e4SLinus Torvalds	help
14971da177e4SLinus Torvalds	  This enables support for systems with more than one CPU. If you have
14981da177e4SLinus Torvalds	  a system with only one CPU, like most personal computers, say N. If
14991da177e4SLinus Torvalds	  you have a system with more than one CPU, say Y.
15001da177e4SLinus Torvalds
15011da177e4SLinus Torvalds	  If you say N here, the kernel will run on single and multiprocessor
15021da177e4SLinus Torvalds	  machines, but will use only one CPU of a multiprocessor machine. If
15031da177e4SLinus Torvalds	  you say Y here, the kernel will run on many, but not all, single
15041da177e4SLinus Torvalds	  processor machines. On a single processor machine, the kernel will
15051da177e4SLinus Torvalds	  run faster if you say N here.
15061da177e4SLinus Torvalds
1507395cf969SPaul Bolle	  See also <file:Documentation/x86/i386/IO-APIC.txt>,
15081da177e4SLinus Torvalds	  <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
150950a23e6eSJustin P. Mattock	  <http://tldp.org/HOWTO/SMP-HOWTO.html>.
15101da177e4SLinus Torvalds
15111da177e4SLinus Torvalds	  If you don't know what to do here, say N.
15121da177e4SLinus Torvalds
1513f00ec48fSRussell Kingconfig SMP_ON_UP
1514f00ec48fSRussell King	bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1515f00ec48fSRussell King	depends on EXPERIMENTAL
15164d2692a7SNicolas Pitre	depends on SMP && !XIP_KERNEL
1517f00ec48fSRussell King	default y
1518f00ec48fSRussell King	help
1519f00ec48fSRussell King	  SMP kernels contain instructions which fail on non-SMP processors.
1520f00ec48fSRussell King	  Enabling this option allows the kernel to modify itself to make
1521f00ec48fSRussell King	  these instructions safe.  Disabling it allows about 1K of space
1522f00ec48fSRussell King	  savings.
1523f00ec48fSRussell King
1524f00ec48fSRussell King	  If you don't know what to do here, say Y.
1525f00ec48fSRussell King
1526c9018aabSVincent Guittotconfig ARM_CPU_TOPOLOGY
1527c9018aabSVincent Guittot	bool "Support cpu topology definition"
1528c9018aabSVincent Guittot	depends on SMP && CPU_V7
1529c9018aabSVincent Guittot	default y
1530c9018aabSVincent Guittot	help
1531c9018aabSVincent Guittot	  Support ARM cpu topology definition. The MPIDR register defines
1532c9018aabSVincent Guittot	  affinity between processors which is then used to describe the cpu
1533c9018aabSVincent Guittot	  topology of an ARM System.
1534c9018aabSVincent Guittot
1535c9018aabSVincent Guittotconfig SCHED_MC
1536c9018aabSVincent Guittot	bool "Multi-core scheduler support"
1537c9018aabSVincent Guittot	depends on ARM_CPU_TOPOLOGY
1538c9018aabSVincent Guittot	help
1539c9018aabSVincent Guittot	  Multi-core scheduler support improves the CPU scheduler's decision
1540c9018aabSVincent Guittot	  making when dealing with multi-core CPU chips at a cost of slightly
1541c9018aabSVincent Guittot	  increased overhead in some places. If unsure say N here.
1542c9018aabSVincent Guittot
1543c9018aabSVincent Guittotconfig SCHED_SMT
1544c9018aabSVincent Guittot	bool "SMT scheduler support"
1545c9018aabSVincent Guittot	depends on ARM_CPU_TOPOLOGY
1546c9018aabSVincent Guittot	help
1547c9018aabSVincent Guittot	  Improves the CPU scheduler's decision making when dealing with
1548c9018aabSVincent Guittot	  MultiThreading at a cost of slightly increased overhead in some
1549c9018aabSVincent Guittot	  places. If unsure say N here.
1550c9018aabSVincent Guittot
1551a8cbcd92SRussell Kingconfig HAVE_ARM_SCU
1552a8cbcd92SRussell King	bool
1553a8cbcd92SRussell King	help
1554a8cbcd92SRussell King	  This option enables support for the ARM system coherency unit
1555a8cbcd92SRussell King
1556f32f4ce2SRussell Kingconfig HAVE_ARM_TWD
1557f32f4ce2SRussell King	bool
1558f32f4ce2SRussell King	depends on SMP
155915095bb0SRussell King	select TICK_ONESHOT
1560f32f4ce2SRussell King	help
1561f32f4ce2SRussell King	  This options enables support for the ARM timer and watchdog unit
1562f32f4ce2SRussell King
15638d5796d2SLennert Buytenhekchoice
15648d5796d2SLennert Buytenhek	prompt "Memory split"
15658d5796d2SLennert Buytenhek	default VMSPLIT_3G
15668d5796d2SLennert Buytenhek	help
15678d5796d2SLennert Buytenhek	  Select the desired split between kernel and user memory.
15688d5796d2SLennert Buytenhek
15698d5796d2SLennert Buytenhek	  If you are not absolutely sure what you are doing, leave this
15708d5796d2SLennert Buytenhek	  option alone!
15718d5796d2SLennert Buytenhek
15728d5796d2SLennert Buytenhek	config VMSPLIT_3G
15738d5796d2SLennert Buytenhek		bool "3G/1G user/kernel split"
15748d5796d2SLennert Buytenhek	config VMSPLIT_2G
15758d5796d2SLennert Buytenhek		bool "2G/2G user/kernel split"
15768d5796d2SLennert Buytenhek	config VMSPLIT_1G
15778d5796d2SLennert Buytenhek		bool "1G/3G user/kernel split"
15788d5796d2SLennert Buytenhekendchoice
15798d5796d2SLennert Buytenhek
15808d5796d2SLennert Buytenhekconfig PAGE_OFFSET
15818d5796d2SLennert Buytenhek	hex
15828d5796d2SLennert Buytenhek	default 0x40000000 if VMSPLIT_1G
15838d5796d2SLennert Buytenhek	default 0x80000000 if VMSPLIT_2G
15848d5796d2SLennert Buytenhek	default 0xC0000000
15858d5796d2SLennert Buytenhek
15861da177e4SLinus Torvaldsconfig NR_CPUS
15871da177e4SLinus Torvalds	int "Maximum number of CPUs (2-32)"
15881da177e4SLinus Torvalds	range 2 32
15891da177e4SLinus Torvalds	depends on SMP
15901da177e4SLinus Torvalds	default "4"
15911da177e4SLinus Torvalds
1592a054a811SRussell Kingconfig HOTPLUG_CPU
1593a054a811SRussell King	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1594a054a811SRussell King	depends on SMP && HOTPLUG && EXPERIMENTAL
1595a054a811SRussell King	help
1596a054a811SRussell King	  Say Y here to experiment with turning CPUs off and on.  CPUs
1597a054a811SRussell King	  can be controlled through /sys/devices/system/cpu.
1598a054a811SRussell King
159937ee16aeSRussell Kingconfig LOCAL_TIMERS
160037ee16aeSRussell King	bool "Use local timer interrupts"
1601971acb9bSRussell King	depends on SMP
160237ee16aeSRussell King	default y
160330d8beadSChanghwan Youn	select HAVE_ARM_TWD if (!ARCH_MSM_SCORPIONMP && !EXYNOS4_MCT)
160437ee16aeSRussell King	help
160537ee16aeSRussell King	  Enable support for local timers on SMP platforms, rather then the
160637ee16aeSRussell King	  legacy IPI broadcast method.  Local timers allows the system
160737ee16aeSRussell King	  accounting to be spread across the timer interval, preventing a
160837ee16aeSRussell King	  "thundering herd" at every timer tick.
160937ee16aeSRussell King
161044986ab0SPeter De Schrijver (NVIDIA)config ARCH_NR_GPIO
161144986ab0SPeter De Schrijver (NVIDIA)	int
16123dea19e8SPeter De Schrijver (NVIDIA)	default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
161370227a45SPhilippe Langlais	default 355 if ARCH_U8500
16149a01ec30SPaul Parsons	default 264 if MACH_H4700
161544986ab0SPeter De Schrijver (NVIDIA)	default 0
161644986ab0SPeter De Schrijver (NVIDIA)	help
161744986ab0SPeter De Schrijver (NVIDIA)	  Maximum number of GPIOs in the system.
161844986ab0SPeter De Schrijver (NVIDIA)
161944986ab0SPeter De Schrijver (NVIDIA)	  If unsure, leave the default value.
162044986ab0SPeter De Schrijver (NVIDIA)
1621d45a398fSUwe Kleine-Königsource kernel/Kconfig.preempt
16221da177e4SLinus Torvalds
1623f8065813SRussell Kingconfig HZ
1624f8065813SRussell King	int
1625b130d5c2SKukjin Kim	default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
1626a73ddc61SKukjin Kim		ARCH_S5PV210 || ARCH_EXYNOS4
1627bfe65704SRussell King	default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
16285248c657SDavid Brownell	default AT91_TIMER_HZ if ARCH_AT91
16295da3e714SMagnus Damm	default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
1630f8065813SRussell King	default 100
1631f8065813SRussell King
163216c79651SCatalin Marinasconfig THUMB2_KERNEL
16334a50bfe3SRussell King	bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
1634e399b1a4SRussell King	depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
163516c79651SCatalin Marinas	select AEABI
163616c79651SCatalin Marinas	select ARM_ASM_UNIFIED
163789bace65SArnd Bergmann	select ARM_UNWIND
163816c79651SCatalin Marinas	help
163916c79651SCatalin Marinas	  By enabling this option, the kernel will be compiled in
164016c79651SCatalin Marinas	  Thumb-2 mode. A compiler/assembler that understand the unified
164116c79651SCatalin Marinas	  ARM-Thumb syntax is needed.
164216c79651SCatalin Marinas
164316c79651SCatalin Marinas	  If unsure, say N.
164416c79651SCatalin Marinas
16456f685c5cSDave Martinconfig THUMB2_AVOID_R_ARM_THM_JUMP11
16466f685c5cSDave Martin	bool "Work around buggy Thumb-2 short branch relocations in gas"
16476f685c5cSDave Martin	depends on THUMB2_KERNEL && MODULES
16486f685c5cSDave Martin	default y
16496f685c5cSDave Martin	help
16506f685c5cSDave Martin	  Various binutils versions can resolve Thumb-2 branches to
16516f685c5cSDave Martin	  locally-defined, preemptible global symbols as short-range "b.n"
16526f685c5cSDave Martin	  branch instructions.
16536f685c5cSDave Martin
16546f685c5cSDave Martin	  This is a problem, because there's no guarantee the final
16556f685c5cSDave Martin	  destination of the symbol, or any candidate locations for a
16566f685c5cSDave Martin	  trampoline, are within range of the branch.  For this reason, the
16576f685c5cSDave Martin	  kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
16586f685c5cSDave Martin	  relocation in modules at all, and it makes little sense to add
16596f685c5cSDave Martin	  support.
16606f685c5cSDave Martin
16616f685c5cSDave Martin	  The symptom is that the kernel fails with an "unsupported
16626f685c5cSDave Martin	  relocation" error when loading some modules.
16636f685c5cSDave Martin
16646f685c5cSDave Martin	  Until fixed tools are available, passing
16656f685c5cSDave Martin	  -fno-optimize-sibling-calls to gcc should prevent gcc generating
16666f685c5cSDave Martin	  code which hits this problem, at the cost of a bit of extra runtime
16676f685c5cSDave Martin	  stack usage in some cases.
16686f685c5cSDave Martin
16696f685c5cSDave Martin	  The problem is described in more detail at:
16706f685c5cSDave Martin	      https://bugs.launchpad.net/binutils-linaro/+bug/725126
16716f685c5cSDave Martin
16726f685c5cSDave Martin	  Only Thumb-2 kernels are affected.
16736f685c5cSDave Martin
16746f685c5cSDave Martin	  Unless you are sure your tools don't have this problem, say Y.
16756f685c5cSDave Martin
16760becb088SCatalin Marinasconfig ARM_ASM_UNIFIED
16770becb088SCatalin Marinas	bool
16780becb088SCatalin Marinas
1679704bdda0SNicolas Pitreconfig AEABI
1680704bdda0SNicolas Pitre	bool "Use the ARM EABI to compile the kernel"
1681704bdda0SNicolas Pitre	help
1682704bdda0SNicolas Pitre	  This option allows for the kernel to be compiled using the latest
1683704bdda0SNicolas Pitre	  ARM ABI (aka EABI).  This is only useful if you are using a user
1684704bdda0SNicolas Pitre	  space environment that is also compiled with EABI.
1685704bdda0SNicolas Pitre
1686704bdda0SNicolas Pitre	  Since there are major incompatibilities between the legacy ABI and
1687704bdda0SNicolas Pitre	  EABI, especially with regard to structure member alignment, this
1688704bdda0SNicolas Pitre	  option also changes the kernel syscall calling convention to
1689704bdda0SNicolas Pitre	  disambiguate both ABIs and allow for backward compatibility support
1690704bdda0SNicolas Pitre	  (selected with CONFIG_OABI_COMPAT).
1691704bdda0SNicolas Pitre
1692704bdda0SNicolas Pitre	  To use this you need GCC version 4.0.0 or later.
1693704bdda0SNicolas Pitre
16946c90c872SNicolas Pitreconfig OABI_COMPAT
1695a73a3ff1SRussell King	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
16969bc433a1SDave Martin	depends on AEABI && EXPERIMENTAL && !THUMB2_KERNEL
16976c90c872SNicolas Pitre	default y
16986c90c872SNicolas Pitre	help
16996c90c872SNicolas Pitre	  This option preserves the old syscall interface along with the
17006c90c872SNicolas Pitre	  new (ARM EABI) one. It also provides a compatibility layer to
17016c90c872SNicolas Pitre	  intercept syscalls that have structure arguments which layout
17026c90c872SNicolas Pitre	  in memory differs between the legacy ABI and the new ARM EABI
17036c90c872SNicolas Pitre	  (only for non "thumb" binaries). This option adds a tiny
17046c90c872SNicolas Pitre	  overhead to all syscalls and produces a slightly larger kernel.
17056c90c872SNicolas Pitre	  If you know you'll be using only pure EABI user space then you
17066c90c872SNicolas Pitre	  can say N here. If this option is not selected and you attempt
17076c90c872SNicolas Pitre	  to execute a legacy ABI binary then the result will be
17086c90c872SNicolas Pitre	  UNPREDICTABLE (in fact it can be predicted that it won't work
17096c90c872SNicolas Pitre	  at all). If in doubt say Y.
17106c90c872SNicolas Pitre
1711eb33575cSMel Gormanconfig ARCH_HAS_HOLES_MEMORYMODEL
1712e80d6a24SMel Gorman	bool
1713e80d6a24SMel Gorman
171405944d74SRussell Kingconfig ARCH_SPARSEMEM_ENABLE
171505944d74SRussell King	bool
171605944d74SRussell King
171707a2f737SRussell Kingconfig ARCH_SPARSEMEM_DEFAULT
171807a2f737SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
171907a2f737SRussell King
172005944d74SRussell Kingconfig ARCH_SELECT_MEMORY_MODEL
1721be370302SRussell King	def_bool ARCH_SPARSEMEM_ENABLE
1722c80d79d7SYasunori Goto
17237b7bf499SWill Deaconconfig HAVE_ARCH_PFN_VALID
17247b7bf499SWill Deacon	def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
17257b7bf499SWill Deacon
1726053a96caSNicolas Pitreconfig HIGHMEM
1727e8db89a2SRussell King	bool "High Memory Support"
1728e8db89a2SRussell King	depends on MMU
1729053a96caSNicolas Pitre	help
1730053a96caSNicolas Pitre	  The address space of ARM processors is only 4 Gigabytes large
1731053a96caSNicolas Pitre	  and it has to accommodate user address space, kernel address
1732053a96caSNicolas Pitre	  space as well as some memory mapped IO. That means that, if you
1733053a96caSNicolas Pitre	  have a large amount of physical memory and/or IO, not all of the
1734053a96caSNicolas Pitre	  memory can be "permanently mapped" by the kernel. The physical
1735053a96caSNicolas Pitre	  memory that is not permanently mapped is called "high memory".
1736053a96caSNicolas Pitre
1737053a96caSNicolas Pitre	  Depending on the selected kernel/user memory split, minimum
1738053a96caSNicolas Pitre	  vmalloc space and actual amount of RAM, you may not need this
1739053a96caSNicolas Pitre	  option which should result in a slightly faster kernel.
1740053a96caSNicolas Pitre
1741053a96caSNicolas Pitre	  If unsure, say n.
1742053a96caSNicolas Pitre
174365cec8e3SRussell Kingconfig HIGHPTE
174465cec8e3SRussell King	bool "Allocate 2nd-level pagetables from highmem"
174565cec8e3SRussell King	depends on HIGHMEM
174665cec8e3SRussell King
17471b8873a0SJamie Ilesconfig HW_PERF_EVENTS
17481b8873a0SJamie Iles	bool "Enable hardware performance counter support for perf events"
1749fe166148SWill Deacon	depends on PERF_EVENTS && CPU_HAS_PMU
17501b8873a0SJamie Iles	default y
17511b8873a0SJamie Iles	help
17521b8873a0SJamie Iles	  Enable hardware performance counter support for perf events. If
17531b8873a0SJamie Iles	  disabled, perf events will use software events only.
17541b8873a0SJamie Iles
17553f22ab27SDave Hansensource "mm/Kconfig"
17563f22ab27SDave Hansen
1757c1b2d970SMagnus Dammconfig FORCE_MAX_ZONEORDER
1758c1b2d970SMagnus Damm	int "Maximum zone order" if ARCH_SHMOBILE
1759c1b2d970SMagnus Damm	range 11 64 if ARCH_SHMOBILE
1760c1b2d970SMagnus Damm	default "9" if SA1111
1761c1b2d970SMagnus Damm	default "11"
1762c1b2d970SMagnus Damm	help
1763c1b2d970SMagnus Damm	  The kernel memory allocator divides physically contiguous memory
1764c1b2d970SMagnus Damm	  blocks into "zones", where each zone is a power of two number of
1765c1b2d970SMagnus Damm	  pages.  This option selects the largest power of two that the kernel
1766c1b2d970SMagnus Damm	  keeps in the memory allocator.  If you need to allocate very large
1767c1b2d970SMagnus Damm	  blocks of physically contiguous memory, then you may need to
1768c1b2d970SMagnus Damm	  increase this value.
1769c1b2d970SMagnus Damm
1770c1b2d970SMagnus Damm	  This config option is actually maximum order plus one. For example,
1771c1b2d970SMagnus Damm	  a value of 11 means that the largest free memory block is 2^10 pages.
1772c1b2d970SMagnus Damm
17731da177e4SLinus Torvaldsconfig LEDS
17741da177e4SLinus Torvalds	bool "Timer and CPU usage LEDs"
1775e055d5bfSAdrian Bunk	depends on ARCH_CDB89712 || ARCH_EBSA110 || \
17768c8fdbc9SSascha Hauer		   ARCH_EBSA285 || ARCH_INTEGRATOR || \
17771da177e4SLinus Torvalds		   ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
17781da177e4SLinus Torvalds		   ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
177973a59c1cSSAN People		   ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
178025329671SJürgen Schindele		   ARCH_AT91 || ARCH_DAVINCI || \
1781ff3042fbSColin Tuckley		   ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
17821da177e4SLinus Torvalds	help
17831da177e4SLinus Torvalds	  If you say Y here, the LEDs on your machine will be used
17841da177e4SLinus Torvalds	  to provide useful information about your current system status.
17851da177e4SLinus Torvalds
17861da177e4SLinus Torvalds	  If you are compiling a kernel for a NetWinder or EBSA-285, you will
17871da177e4SLinus Torvalds	  be able to select which LEDs are active using the options below. If
17881da177e4SLinus Torvalds	  you are compiling a kernel for the EBSA-110 or the LART however, the
17891da177e4SLinus Torvalds	  red LED will simply flash regularly to indicate that the system is
17901da177e4SLinus Torvalds	  still functional. It is safe to say Y here if you have a CATS
17911da177e4SLinus Torvalds	  system, but the driver will do nothing.
17921da177e4SLinus Torvalds
17931da177e4SLinus Torvaldsconfig LEDS_TIMER
17941da177e4SLinus Torvalds	bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1795eebdf7d7SDavid Brownell			    OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1796eebdf7d7SDavid Brownell			    || MACH_OMAP_PERSEUS2
17971da177e4SLinus Torvalds	depends on LEDS
17980567a0c0SKevin Hilman	depends on !GENERIC_CLOCKEVENTS
17991da177e4SLinus Torvalds	default y if ARCH_EBSA110
18001da177e4SLinus Torvalds	help
18011da177e4SLinus Torvalds	  If you say Y here, one of the system LEDs (the green one on the
18021da177e4SLinus Torvalds	  NetWinder, the amber one on the EBSA285, or the red one on the LART)
18031da177e4SLinus Torvalds	  will flash regularly to indicate that the system is still
18041da177e4SLinus Torvalds	  operational. This is mainly useful to kernel hackers who are
18051da177e4SLinus Torvalds	  debugging unstable kernels.
18061da177e4SLinus Torvalds
18071da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
18081da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
18091da177e4SLinus Torvalds	  will overrule the CPU usage LED.
18101da177e4SLinus Torvalds
18111da177e4SLinus Torvaldsconfig LEDS_CPU
18121da177e4SLinus Torvalds	bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1813eebdf7d7SDavid Brownell			!ARCH_OMAP) \
1814eebdf7d7SDavid Brownell			|| OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1815eebdf7d7SDavid Brownell			|| MACH_OMAP_PERSEUS2
18161da177e4SLinus Torvalds	depends on LEDS
18171da177e4SLinus Torvalds	help
18181da177e4SLinus Torvalds	  If you say Y here, the red LED will be used to give a good real
18191da177e4SLinus Torvalds	  time indication of CPU usage, by lighting whenever the idle task
18201da177e4SLinus Torvalds	  is not currently executing.
18211da177e4SLinus Torvalds
18221da177e4SLinus Torvalds	  The LART uses the same LED for both Timer LED and CPU usage LED
18231da177e4SLinus Torvalds	  functions. You may choose to use both, but the Timer LED function
18241da177e4SLinus Torvalds	  will overrule the CPU usage LED.
18251da177e4SLinus Torvalds
18261da177e4SLinus Torvaldsconfig ALIGNMENT_TRAP
18271da177e4SLinus Torvalds	bool
1828f12d0d7cSHyok S. Choi	depends on CPU_CP15_MMU
18291da177e4SLinus Torvalds	default y if !ARCH_EBSA110
1830e119bfffSRussell King	select HAVE_PROC_CPU if PROC_FS
18311da177e4SLinus Torvalds	help
18321da177e4SLinus Torvalds	  ARM processors cannot fetch/store information which is not
18331da177e4SLinus Torvalds	  naturally aligned on the bus, i.e., a 4 byte fetch must start at an
18341da177e4SLinus Torvalds	  address divisible by 4. On 32-bit ARM processors, these non-aligned
18351da177e4SLinus Torvalds	  fetch/store instructions will be emulated in software if you say
18361da177e4SLinus Torvalds	  here, which has a severe performance impact. This is necessary for
18371da177e4SLinus Torvalds	  correct operation of some network protocols. With an IP-only
18381da177e4SLinus Torvalds	  configuration it is safe to say N, otherwise say Y.
18391da177e4SLinus Torvalds
184039ec58f3SLennert Buytenhekconfig UACCESS_WITH_MEMCPY
184139ec58f3SLennert Buytenhek	bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
184239ec58f3SLennert Buytenhek	depends on MMU && EXPERIMENTAL
184339ec58f3SLennert Buytenhek	default y if CPU_FEROCEON
184439ec58f3SLennert Buytenhek	help
184539ec58f3SLennert Buytenhek	  Implement faster copy_to_user and clear_user methods for CPU
184639ec58f3SLennert Buytenhek	  cores where a 8-word STM instruction give significantly higher
184739ec58f3SLennert Buytenhek	  memory write throughput than a sequence of individual 32bit stores.
184839ec58f3SLennert Buytenhek
184939ec58f3SLennert Buytenhek	  A possible side effect is a slight increase in scheduling latency
185039ec58f3SLennert Buytenhek	  between threads sharing the same address space if they invoke
185139ec58f3SLennert Buytenhek	  such copy operations with large buffers.
185239ec58f3SLennert Buytenhek
185339ec58f3SLennert Buytenhek	  However, if the CPU data cache is using a write-allocate mode,
185439ec58f3SLennert Buytenhek	  this option is unlikely to provide any performance gain.
185539ec58f3SLennert Buytenhek
185670c70d97SNicolas Pitreconfig SECCOMP
185770c70d97SNicolas Pitre	bool
185870c70d97SNicolas Pitre	prompt "Enable seccomp to safely compute untrusted bytecode"
185970c70d97SNicolas Pitre	---help---
186070c70d97SNicolas Pitre	  This kernel feature is useful for number crunching applications
186170c70d97SNicolas Pitre	  that may need to compute untrusted bytecode during their
186270c70d97SNicolas Pitre	  execution. By using pipes or other transports made available to
186370c70d97SNicolas Pitre	  the process as file descriptors supporting the read/write
186470c70d97SNicolas Pitre	  syscalls, it's possible to isolate those applications in
186570c70d97SNicolas Pitre	  their own address space using seccomp. Once seccomp is
186670c70d97SNicolas Pitre	  enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
186770c70d97SNicolas Pitre	  and the task is only allowed to execute a few safe syscalls
186870c70d97SNicolas Pitre	  defined by each seccomp mode.
186970c70d97SNicolas Pitre
1870c743f380SNicolas Pitreconfig CC_STACKPROTECTOR
1871c743f380SNicolas Pitre	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
18724a50bfe3SRussell King	depends on EXPERIMENTAL
1873c743f380SNicolas Pitre	help
1874c743f380SNicolas Pitre	  This option turns on the -fstack-protector GCC feature. This
1875c743f380SNicolas Pitre	  feature puts, at the beginning of functions, a canary value on
1876c743f380SNicolas Pitre	  the stack just before the return address, and validates
1877c743f380SNicolas Pitre	  the value just before actually returning.  Stack based buffer
1878c743f380SNicolas Pitre	  overflows (that need to overwrite this return address) now also
1879c743f380SNicolas Pitre	  overwrite the canary, which gets detected and the attack is then
1880c743f380SNicolas Pitre	  neutralized via a kernel panic.
1881c743f380SNicolas Pitre	  This feature requires gcc version 4.2 or above.
1882c743f380SNicolas Pitre
188373a65b3fSUwe Kleine-Königconfig DEPRECATED_PARAM_STRUCT
188473a65b3fSUwe Kleine-König	bool "Provide old way to pass kernel parameters"
188573a65b3fSUwe Kleine-König	help
188673a65b3fSUwe Kleine-König	  This was deprecated in 2001 and announced to live on for 5 years.
188773a65b3fSUwe Kleine-König	  Some old boot loaders still use this way.
188873a65b3fSUwe Kleine-König
18891da177e4SLinus Torvaldsendmenu
18901da177e4SLinus Torvalds
18911da177e4SLinus Torvaldsmenu "Boot options"
18921da177e4SLinus Torvalds
18939eb8f674SGrant Likelyconfig USE_OF
18949eb8f674SGrant Likely	bool "Flattened Device Tree support"
18959eb8f674SGrant Likely	select OF
18969eb8f674SGrant Likely	select OF_EARLY_FLATTREE
189708a543adSGrant Likely	select IRQ_DOMAIN
18989eb8f674SGrant Likely	help
18999eb8f674SGrant Likely	  Include support for flattened device tree machine descriptions.
19009eb8f674SGrant Likely
19011da177e4SLinus Torvalds# Compressed boot loader in ROM.  Yes, we really want to ask about
19021da177e4SLinus Torvalds# TEXT and BSS so we preserve their values in the config files.
19031da177e4SLinus Torvaldsconfig ZBOOT_ROM_TEXT
19041da177e4SLinus Torvalds	hex "Compressed ROM boot loader base address"
19051da177e4SLinus Torvalds	default "0"
19061da177e4SLinus Torvalds	help
19071da177e4SLinus Torvalds	  The physical address at which the ROM-able zImage is to be
19081da177e4SLinus Torvalds	  placed in the target.  Platforms which normally make use of
19091da177e4SLinus Torvalds	  ROM-able zImage formats normally set this to a suitable
19101da177e4SLinus Torvalds	  value in their defconfig file.
19111da177e4SLinus Torvalds
19121da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
19131da177e4SLinus Torvalds
19141da177e4SLinus Torvaldsconfig ZBOOT_ROM_BSS
19151da177e4SLinus Torvalds	hex "Compressed ROM boot loader BSS address"
19161da177e4SLinus Torvalds	default "0"
19171da177e4SLinus Torvalds	help
1918f8c440b2SDan Fandrich	  The base address of an area of read/write memory in the target
1919f8c440b2SDan Fandrich	  for the ROM-able zImage which must be available while the
1920f8c440b2SDan Fandrich	  decompressor is running. It must be large enough to hold the
1921f8c440b2SDan Fandrich	  entire decompressed kernel plus an additional 128 KiB.
1922f8c440b2SDan Fandrich	  Platforms which normally make use of ROM-able zImage formats
1923f8c440b2SDan Fandrich	  normally set this to a suitable value in their defconfig file.
19241da177e4SLinus Torvalds
19251da177e4SLinus Torvalds	  If ZBOOT_ROM is not enabled, this has no effect.
19261da177e4SLinus Torvalds
19271da177e4SLinus Torvaldsconfig ZBOOT_ROM
19281da177e4SLinus Torvalds	bool "Compressed boot loader in ROM/flash"
19291da177e4SLinus Torvalds	depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
19301da177e4SLinus Torvalds	help
19311da177e4SLinus Torvalds	  Say Y here if you intend to execute your compressed kernel image
19321da177e4SLinus Torvalds	  (zImage) directly from ROM or flash.  If unsure, say N.
19331da177e4SLinus Torvalds
1934090ab3ffSSimon Hormanchoice
1935090ab3ffSSimon Horman	prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
1936090ab3ffSSimon Horman	depends on ZBOOT_ROM && ARCH_SH7372 && EXPERIMENTAL
1937090ab3ffSSimon Horman	default ZBOOT_ROM_NONE
1938090ab3ffSSimon Horman	help
1939090ab3ffSSimon Horman	  Include experimental SD/MMC loading code in the ROM-able zImage.
1940090ab3ffSSimon Horman	  With this enabled it is possible to write the the ROM-able zImage
1941090ab3ffSSimon Horman	  kernel image to an MMC or SD card and boot the kernel straight
1942090ab3ffSSimon Horman	  from the reset vector. At reset the processor Mask ROM will load
1943090ab3ffSSimon Horman	  the first part of the the ROM-able zImage which in turn loads the
1944090ab3ffSSimon Horman	  rest the kernel image to RAM.
1945090ab3ffSSimon Horman
1946090ab3ffSSimon Hormanconfig ZBOOT_ROM_NONE
1947090ab3ffSSimon Horman	bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1948090ab3ffSSimon Horman	help
1949090ab3ffSSimon Horman	  Do not load image from SD or MMC
1950090ab3ffSSimon Horman
1951f45b1149SSimon Hormanconfig ZBOOT_ROM_MMCIF
1952f45b1149SSimon Horman	bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
1953f45b1149SSimon Horman	help
1954090ab3ffSSimon Horman	  Load image from MMCIF hardware block.
1955090ab3ffSSimon Horman
1956090ab3ffSSimon Hormanconfig ZBOOT_ROM_SH_MOBILE_SDHI
1957090ab3ffSSimon Horman	bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1958090ab3ffSSimon Horman	help
1959090ab3ffSSimon Horman	  Load image from SDHI hardware block
1960090ab3ffSSimon Horman
1961090ab3ffSSimon Hormanendchoice
1962f45b1149SSimon Horman
1963e2a6a3aaSJohn Bonesioconfig ARM_APPENDED_DTB
1964e2a6a3aaSJohn Bonesio	bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
1965e2a6a3aaSJohn Bonesio	depends on OF && !ZBOOT_ROM && EXPERIMENTAL
1966e2a6a3aaSJohn Bonesio	help
1967e2a6a3aaSJohn Bonesio	  With this option, the boot code will look for a device tree binary
1968e2a6a3aaSJohn Bonesio	  (DTB) appended to zImage
1969e2a6a3aaSJohn Bonesio	  (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1970e2a6a3aaSJohn Bonesio
1971e2a6a3aaSJohn Bonesio	  This is meant as a backward compatibility convenience for those
1972e2a6a3aaSJohn Bonesio	  systems with a bootloader that can't be upgraded to accommodate
1973e2a6a3aaSJohn Bonesio	  the documented boot protocol using a device tree.
1974e2a6a3aaSJohn Bonesio
1975e2a6a3aaSJohn Bonesio	  Beware that there is very little in terms of protection against
1976e2a6a3aaSJohn Bonesio	  this option being confused by leftover garbage in memory that might
1977e2a6a3aaSJohn Bonesio	  look like a DTB header after a reboot if no actual DTB is appended
1978e2a6a3aaSJohn Bonesio	  to zImage.  Do not leave this option active in a production kernel
1979e2a6a3aaSJohn Bonesio	  if you don't intend to always append a DTB.  Proper passing of the
1980e2a6a3aaSJohn Bonesio	  location into r2 of a bootloader provided DTB is always preferable
1981e2a6a3aaSJohn Bonesio	  to this option.
1982e2a6a3aaSJohn Bonesio
1983b90b9a38SNicolas Pitreconfig ARM_ATAG_DTB_COMPAT
1984b90b9a38SNicolas Pitre	bool "Supplement the appended DTB with traditional ATAG information"
1985b90b9a38SNicolas Pitre	depends on ARM_APPENDED_DTB
1986b90b9a38SNicolas Pitre	help
1987b90b9a38SNicolas Pitre	  Some old bootloaders can't be updated to a DTB capable one, yet
1988b90b9a38SNicolas Pitre	  they provide ATAGs with memory configuration, the ramdisk address,
1989b90b9a38SNicolas Pitre	  the kernel cmdline string, etc.  Such information is dynamically
1990b90b9a38SNicolas Pitre	  provided by the bootloader and can't always be stored in a static
1991b90b9a38SNicolas Pitre	  DTB.  To allow a device tree enabled kernel to be used with such
1992b90b9a38SNicolas Pitre	  bootloaders, this option allows zImage to extract the information
1993b90b9a38SNicolas Pitre	  from the ATAG list and store it at run time into the appended DTB.
1994b90b9a38SNicolas Pitre
19951da177e4SLinus Torvaldsconfig CMDLINE
19961da177e4SLinus Torvalds	string "Default kernel command string"
19971da177e4SLinus Torvalds	default ""
19981da177e4SLinus Torvalds	help
19991da177e4SLinus Torvalds	  On some architectures (EBSA110 and CATS), there is currently no way
20001da177e4SLinus Torvalds	  for the boot loader to pass arguments to the kernel. For these
20011da177e4SLinus Torvalds	  architectures, you should supply some command-line options at build
20021da177e4SLinus Torvalds	  time by entering them here. As a minimum, you should specify the
20031da177e4SLinus Torvalds	  memory size and the root device (e.g., mem=64M root=/dev/nfs).
20041da177e4SLinus Torvalds
20054394c124SVictor Boiviechoice
20064394c124SVictor Boivie	prompt "Kernel command line type" if CMDLINE != ""
20074394c124SVictor Boivie	default CMDLINE_FROM_BOOTLOADER
20084394c124SVictor Boivie
20094394c124SVictor Boivieconfig CMDLINE_FROM_BOOTLOADER
20104394c124SVictor Boivie	bool "Use bootloader kernel arguments if available"
20114394c124SVictor Boivie	help
20124394c124SVictor Boivie	  Uses the command-line options passed by the boot loader. If
20134394c124SVictor Boivie	  the boot loader doesn't provide any, the default kernel command
20144394c124SVictor Boivie	  string provided in CMDLINE will be used.
20154394c124SVictor Boivie
20164394c124SVictor Boivieconfig CMDLINE_EXTEND
20174394c124SVictor Boivie	bool "Extend bootloader kernel arguments"
20184394c124SVictor Boivie	help
20194394c124SVictor Boivie	  The command-line arguments provided by the boot loader will be
20204394c124SVictor Boivie	  appended to the default kernel command string.
20214394c124SVictor Boivie
202292d2040dSAlexander Hollerconfig CMDLINE_FORCE
202392d2040dSAlexander Holler	bool "Always use the default kernel command string"
202492d2040dSAlexander Holler	help
202592d2040dSAlexander Holler	  Always use the default kernel command string, even if the boot
202692d2040dSAlexander Holler	  loader passes other arguments to the kernel.
202792d2040dSAlexander Holler	  This is useful if you cannot or don't want to change the
202892d2040dSAlexander Holler	  command-line options your boot loader passes to the kernel.
20294394c124SVictor Boivieendchoice
203092d2040dSAlexander Holler
20311da177e4SLinus Torvaldsconfig XIP_KERNEL
20321da177e4SLinus Torvalds	bool "Kernel Execute-In-Place from ROM"
2033497b7e94SCatalin Marinas	depends on !ZBOOT_ROM && !ARM_LPAE
20341da177e4SLinus Torvalds	help
20351da177e4SLinus Torvalds	  Execute-In-Place allows the kernel to run from non-volatile storage
20361da177e4SLinus Torvalds	  directly addressable by the CPU, such as NOR flash. This saves RAM
20371da177e4SLinus Torvalds	  space since the text section of the kernel is not loaded from flash
20381da177e4SLinus Torvalds	  to RAM.  Read-write sections, such as the data section and stack,
20391da177e4SLinus Torvalds	  are still copied to RAM.  The XIP kernel is not compressed since
20401da177e4SLinus Torvalds	  it has to run directly from flash, so it will take more space to
20411da177e4SLinus Torvalds	  store it.  The flash address used to link the kernel object files,
20421da177e4SLinus Torvalds	  and for storing it, is configuration dependent. Therefore, if you
20431da177e4SLinus Torvalds	  say Y here, you must know the proper physical address where to
20441da177e4SLinus Torvalds	  store the kernel image depending on your own flash memory usage.
20451da177e4SLinus Torvalds
20461da177e4SLinus Torvalds	  Also note that the make target becomes "make xipImage" rather than
20471da177e4SLinus Torvalds	  "make zImage" or "make Image".  The final kernel binary to put in
20481da177e4SLinus Torvalds	  ROM memory will be arch/arm/boot/xipImage.
20491da177e4SLinus Torvalds
20501da177e4SLinus Torvalds	  If unsure, say N.
20511da177e4SLinus Torvalds
20521da177e4SLinus Torvaldsconfig XIP_PHYS_ADDR
20531da177e4SLinus Torvalds	hex "XIP Kernel Physical Location"
20541da177e4SLinus Torvalds	depends on XIP_KERNEL
20551da177e4SLinus Torvalds	default "0x00080000"
20561da177e4SLinus Torvalds	help
20571da177e4SLinus Torvalds	  This is the physical address in your flash memory the kernel will
20581da177e4SLinus Torvalds	  be linked for and stored to.  This address is dependent on your
20591da177e4SLinus Torvalds	  own flash usage.
20601da177e4SLinus Torvalds
2061c587e4a6SRichard Purdieconfig KEXEC
2062c587e4a6SRichard Purdie	bool "Kexec system call (EXPERIMENTAL)"
206302b73e2eSWill Deacon	depends on EXPERIMENTAL && (!SMP || HOTPLUG_CPU)
2064c587e4a6SRichard Purdie	help
2065c587e4a6SRichard Purdie	  kexec is a system call that implements the ability to shutdown your
2066c587e4a6SRichard Purdie	  current kernel, and to start another kernel.  It is like a reboot
206701dd2fbfSMatt LaPlante	  but it is independent of the system firmware.   And like a reboot
2068c587e4a6SRichard Purdie	  you can start any kernel with it, not just Linux.
2069c587e4a6SRichard Purdie
2070c587e4a6SRichard Purdie	  It is an ongoing process to be certain the hardware in a machine
2071c587e4a6SRichard Purdie	  is properly shutdown, so do not be surprised if this code does not
2072c587e4a6SRichard Purdie	  initially work for you.  It may help to enable device hotplugging
2073c587e4a6SRichard Purdie	  support.
2074c587e4a6SRichard Purdie
20754cd9d6f7SRichard Purdieconfig ATAGS_PROC
20764cd9d6f7SRichard Purdie	bool "Export atags in procfs"
2077b98d7291SUli Luckas	depends on KEXEC
2078b98d7291SUli Luckas	default y
20794cd9d6f7SRichard Purdie	help
20804cd9d6f7SRichard Purdie	  Should the atags used to boot the kernel be exported in an "atags"
20814cd9d6f7SRichard Purdie	  file in procfs. Useful with kexec.
20824cd9d6f7SRichard Purdie
2083cb5d39b3SMika Westerbergconfig CRASH_DUMP
2084cb5d39b3SMika Westerberg	bool "Build kdump crash kernel (EXPERIMENTAL)"
2085cb5d39b3SMika Westerberg	depends on EXPERIMENTAL
2086cb5d39b3SMika Westerberg	help
2087cb5d39b3SMika Westerberg	  Generate crash dump after being started by kexec. This should
2088cb5d39b3SMika Westerberg	  be normally only set in special crash dump kernels which are
2089cb5d39b3SMika Westerberg	  loaded in the main kernel with kexec-tools into a specially
2090cb5d39b3SMika Westerberg	  reserved region and then later executed after a crash by
2091cb5d39b3SMika Westerberg	  kdump/kexec. The crash dump kernel must be compiled to a
2092cb5d39b3SMika Westerberg	  memory address not used by the main kernel
2093cb5d39b3SMika Westerberg
2094cb5d39b3SMika Westerberg	  For more details see Documentation/kdump/kdump.txt
2095cb5d39b3SMika Westerberg
2096e69edc79SEric Miaoconfig AUTO_ZRELADDR
2097e69edc79SEric Miao	bool "Auto calculation of the decompressed kernel image address"
2098e69edc79SEric Miao	depends on !ZBOOT_ROM && !ARCH_U300
2099e69edc79SEric Miao	help
2100e69edc79SEric Miao	  ZRELADDR is the physical address where the decompressed kernel
2101e69edc79SEric Miao	  image will be placed. If AUTO_ZRELADDR is selected, the address
2102e69edc79SEric Miao	  will be determined at run-time by masking the current IP with
2103e69edc79SEric Miao	  0xf8000000. This assumes the zImage being placed in the first 128MB
2104e69edc79SEric Miao	  from start of memory.
2105e69edc79SEric Miao
21061da177e4SLinus Torvaldsendmenu
21071da177e4SLinus Torvalds
2108ac9d7efcSRussell Kingmenu "CPU Power Management"
21091da177e4SLinus Torvalds
211089c52ed4SBen Dooksif ARCH_HAS_CPUFREQ
21111da177e4SLinus Torvalds
21121da177e4SLinus Torvaldssource "drivers/cpufreq/Kconfig"
21131da177e4SLinus Torvalds
211464f102b6SYong Shenconfig CPU_FREQ_IMX
211564f102b6SYong Shen	tristate "CPUfreq driver for i.MX CPUs"
211664f102b6SYong Shen	depends on ARCH_MXC && CPU_FREQ
211764f102b6SYong Shen	help
211864f102b6SYong Shen	  This enables the CPUfreq driver for i.MX CPUs.
211964f102b6SYong Shen
21201da177e4SLinus Torvaldsconfig CPU_FREQ_SA1100
21211da177e4SLinus Torvalds	bool
21221da177e4SLinus Torvalds
21231da177e4SLinus Torvaldsconfig CPU_FREQ_SA1110
21241da177e4SLinus Torvalds	bool
21251da177e4SLinus Torvalds
21261da177e4SLinus Torvaldsconfig CPU_FREQ_INTEGRATOR
21271da177e4SLinus Torvalds	tristate "CPUfreq driver for ARM Integrator CPUs"
21281da177e4SLinus Torvalds	depends on ARCH_INTEGRATOR && CPU_FREQ
21291da177e4SLinus Torvalds	default y
21301da177e4SLinus Torvalds	help
21311da177e4SLinus Torvalds	  This enables the CPUfreq driver for ARM Integrator CPUs.
21321da177e4SLinus Torvalds
21331da177e4SLinus Torvalds	  For details, take a look at <file:Documentation/cpu-freq>.
21341da177e4SLinus Torvalds
21351da177e4SLinus Torvalds	  If in doubt, say Y.
21361da177e4SLinus Torvalds
21379e2697ffSRussell Kingconfig CPU_FREQ_PXA
21389e2697ffSRussell King	bool
21399e2697ffSRussell King	depends on CPU_FREQ && ARCH_PXA && PXA25x
21409e2697ffSRussell King	default y
2141ca7d156eSArnd Bergmann	select CPU_FREQ_TABLE
21429e2697ffSRussell King	select CPU_FREQ_DEFAULT_GOV_USERSPACE
21439e2697ffSRussell King
21449d56c02aSBen Dooksconfig CPU_FREQ_S3C
21459d56c02aSBen Dooks	bool
21469d56c02aSBen Dooks	help
21479d56c02aSBen Dooks	  Internal configuration node for common cpufreq on Samsung SoC
21489d56c02aSBen Dooks
21499d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX
21504a50bfe3SRussell King	bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
2151b130d5c2SKukjin Kim	depends on ARCH_S3C24XX && CPU_FREQ && EXPERIMENTAL
21529d56c02aSBen Dooks	select CPU_FREQ_S3C
21539d56c02aSBen Dooks	help
21549d56c02aSBen Dooks	  This enables the CPUfreq driver for the Samsung S3C24XX family
21559d56c02aSBen Dooks	  of CPUs.
21569d56c02aSBen Dooks
21579d56c02aSBen Dooks	  For details, take a look at <file:Documentation/cpu-freq>.
21589d56c02aSBen Dooks
21599d56c02aSBen Dooks	  If in doubt, say N.
21609d56c02aSBen Dooks
21619d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_PLL
21624a50bfe3SRussell King	bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
21639d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
21649d56c02aSBen Dooks	help
21659d56c02aSBen Dooks	  Compile in support for changing the PLL frequency from the
21669d56c02aSBen Dooks	  S3C24XX series CPUfreq driver. The PLL takes time to settle
21679d56c02aSBen Dooks	  after a frequency change, so by default it is not enabled.
21689d56c02aSBen Dooks
21699d56c02aSBen Dooks	  This also means that the PLL tables for the selected CPU(s) will
21709d56c02aSBen Dooks	  be built which may increase the size of the kernel image.
21719d56c02aSBen Dooks
21729d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_DEBUG
21739d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver core"
21749d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
21759d56c02aSBen Dooks	help
21769d56c02aSBen Dooks	  Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
21779d56c02aSBen Dooks
21789d56c02aSBen Dooksconfig CPU_FREQ_S3C24XX_IODEBUG
21799d56c02aSBen Dooks	bool "Debug CPUfreq Samsung driver IO timing"
21809d56c02aSBen Dooks	depends on CPU_FREQ_S3C24XX
21819d56c02aSBen Dooks	help
21829d56c02aSBen Dooks	  Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
21839d56c02aSBen Dooks
2184e6d197a6SBen Dooksconfig CPU_FREQ_S3C24XX_DEBUGFS
2185e6d197a6SBen Dooks	bool "Export debugfs for CPUFreq"
2186e6d197a6SBen Dooks	depends on CPU_FREQ_S3C24XX && DEBUG_FS
2187e6d197a6SBen Dooks	help
2188e6d197a6SBen Dooks	  Export status information via debugfs.
2189e6d197a6SBen Dooks
21901da177e4SLinus Torvaldsendif
21911da177e4SLinus Torvalds
2192ac9d7efcSRussell Kingsource "drivers/cpuidle/Kconfig"
2193ac9d7efcSRussell King
2194ac9d7efcSRussell Kingendmenu
2195ac9d7efcSRussell King
21961da177e4SLinus Torvaldsmenu "Floating point emulation"
21971da177e4SLinus Torvalds
21981da177e4SLinus Torvaldscomment "At least one emulation must be selected"
21991da177e4SLinus Torvalds
22001da177e4SLinus Torvaldsconfig FPE_NWFPE
22011da177e4SLinus Torvalds	bool "NWFPE math emulation"
2202593c252aSDave Martin	depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
22031da177e4SLinus Torvalds	---help---
22041da177e4SLinus Torvalds	  Say Y to include the NWFPE floating point emulator in the kernel.
22051da177e4SLinus Torvalds	  This is necessary to run most binaries. Linux does not currently
22061da177e4SLinus Torvalds	  support floating point hardware so you need to say Y here even if
22071da177e4SLinus Torvalds	  your machine has an FPA or floating point co-processor podule.
22081da177e4SLinus Torvalds
22091da177e4SLinus Torvalds	  You may say N here if you are going to load the Acorn FPEmulator
22101da177e4SLinus Torvalds	  early in the bootup.
22111da177e4SLinus Torvalds
22121da177e4SLinus Torvaldsconfig FPE_NWFPE_XP
22131da177e4SLinus Torvalds	bool "Support extended precision"
2214bedf142bSLennert Buytenhek	depends on FPE_NWFPE
22151da177e4SLinus Torvalds	help
22161da177e4SLinus Torvalds	  Say Y to include 80-bit support in the kernel floating-point
22171da177e4SLinus Torvalds	  emulator.  Otherwise, only 32 and 64-bit support is compiled in.
22181da177e4SLinus Torvalds	  Note that gcc does not generate 80-bit operations by default,
22191da177e4SLinus Torvalds	  so in most cases this option only enlarges the size of the
22201da177e4SLinus Torvalds	  floating point emulator without any good reason.
22211da177e4SLinus Torvalds
22221da177e4SLinus Torvalds	  You almost surely want to say N here.
22231da177e4SLinus Torvalds
22241da177e4SLinus Torvaldsconfig FPE_FASTFPE
22251da177e4SLinus Torvalds	bool "FastFPE math emulation (EXPERIMENTAL)"
22268993a44cSNicolas Pitre	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
22271da177e4SLinus Torvalds	---help---
22281da177e4SLinus Torvalds	  Say Y here to include the FAST floating point emulator in the kernel.
22291da177e4SLinus Torvalds	  This is an experimental much faster emulator which now also has full
22301da177e4SLinus Torvalds	  precision for the mantissa.  It does not support any exceptions.
22311da177e4SLinus Torvalds	  It is very simple, and approximately 3-6 times faster than NWFPE.
22321da177e4SLinus Torvalds
22331da177e4SLinus Torvalds	  It should be sufficient for most programs.  It may be not suitable
22341da177e4SLinus Torvalds	  for scientific calculations, but you have to check this for yourself.
22351da177e4SLinus Torvalds	  If you do not feel you need a faster FP emulation you should better
22361da177e4SLinus Torvalds	  choose NWFPE.
22371da177e4SLinus Torvalds
22381da177e4SLinus Torvaldsconfig VFP
22391da177e4SLinus Torvalds	bool "VFP-format floating point maths"
2240e399b1a4SRussell King	depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
22411da177e4SLinus Torvalds	help
22421da177e4SLinus Torvalds	  Say Y to include VFP support code in the kernel. This is needed
22431da177e4SLinus Torvalds	  if your hardware includes a VFP unit.
22441da177e4SLinus Torvalds
22451da177e4SLinus Torvalds	  Please see <file:Documentation/arm/VFP/release-notes.txt> for
22461da177e4SLinus Torvalds	  release notes and additional status information.
22471da177e4SLinus Torvalds
22481da177e4SLinus Torvalds	  Say N if your target does not have VFP hardware.
22491da177e4SLinus Torvalds
225025ebee02SCatalin Marinasconfig VFPv3
225125ebee02SCatalin Marinas	bool
225225ebee02SCatalin Marinas	depends on VFP
225325ebee02SCatalin Marinas	default y if CPU_V7
225425ebee02SCatalin Marinas
2255b5872db4SCatalin Marinasconfig NEON
2256b5872db4SCatalin Marinas	bool "Advanced SIMD (NEON) Extension support"
2257b5872db4SCatalin Marinas	depends on VFPv3 && CPU_V7
2258b5872db4SCatalin Marinas	help
2259b5872db4SCatalin Marinas	  Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2260b5872db4SCatalin Marinas	  Extension.
2261b5872db4SCatalin Marinas
22621da177e4SLinus Torvaldsendmenu
22631da177e4SLinus Torvalds
22641da177e4SLinus Torvaldsmenu "Userspace binary formats"
22651da177e4SLinus Torvalds
22661da177e4SLinus Torvaldssource "fs/Kconfig.binfmt"
22671da177e4SLinus Torvalds
22681da177e4SLinus Torvaldsconfig ARTHUR
22691da177e4SLinus Torvalds	tristate "RISC OS personality"
2270704bdda0SNicolas Pitre	depends on !AEABI
22711da177e4SLinus Torvalds	help
22721da177e4SLinus Torvalds	  Say Y here to include the kernel code necessary if you want to run
22731da177e4SLinus Torvalds	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
22741da177e4SLinus Torvalds	  experimental; if this sounds frightening, say N and sleep in peace.
22751da177e4SLinus Torvalds	  You can also say M here to compile this support as a module (which
22761da177e4SLinus Torvalds	  will be called arthur).
22771da177e4SLinus Torvalds
22781da177e4SLinus Torvaldsendmenu
22791da177e4SLinus Torvalds
22801da177e4SLinus Torvaldsmenu "Power management options"
22811da177e4SLinus Torvalds
2282eceab4acSRussell Kingsource "kernel/power/Kconfig"
22831da177e4SLinus Torvalds
2284f4cb5700SJohannes Bergconfig ARCH_SUSPEND_POSSIBLE
22856b6844ddSAbhilash Kesavan	depends on !ARCH_S5PC100
22866a786182SRussell King	depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
22876a786182SRussell King		CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE
2288f4cb5700SJohannes Berg	def_bool y
2289f4cb5700SJohannes Berg
229015e0d9e3SArnd Bergmannconfig ARM_CPU_SUSPEND
229115e0d9e3SArnd Bergmann	def_bool PM_SLEEP
229215e0d9e3SArnd Bergmann
22931da177e4SLinus Torvaldsendmenu
22941da177e4SLinus Torvalds
2295d5950b43SSam Ravnborgsource "net/Kconfig"
2296d5950b43SSam Ravnborg
2297ac25150fSUwe Kleine-Königsource "drivers/Kconfig"
22981da177e4SLinus Torvalds
22991da177e4SLinus Torvaldssource "fs/Kconfig"
23001da177e4SLinus Torvalds
23011da177e4SLinus Torvaldssource "arch/arm/Kconfig.debug"
23021da177e4SLinus Torvalds
23031da177e4SLinus Torvaldssource "security/Kconfig"
23041da177e4SLinus Torvalds
23051da177e4SLinus Torvaldssource "crypto/Kconfig"
23061da177e4SLinus Torvalds
23071da177e4SLinus Torvaldssource "lib/Kconfig"
2308