blob: 50eada8260a952299417fcc738bbf99b9871f1cb [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Russell Kingb1b3f492012-10-06 17:12:25 +01006 select ARCH_HAVE_CUSTOM_GPIO_H
Mark Rutland3d067702012-10-30 12:13:42 +00007 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell Kingb1b3f492012-10-06 17:12:25 +01008 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +01009 select BUILDTIME_EXTABLE_SORT if MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010010 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacon39b175a2012-12-04 12:57:11 +010011 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010012 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010013 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
14 select GENERIC_IRQ_PROBE
15 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070017 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010018 select GENERIC_SMP_IDLE_THREAD
Thomas Gleixnerf7b861b2013-03-21 22:49:38 +010019 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010020 select GENERIC_STRNCPY_FROM_USER
21 select GENERIC_STRNLEN_USER
22 select HARDIRQS_SW_RESEND
Rabin Vincent09f05d82012-02-18 17:52:41 +010023 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060024 select HAVE_ARCH_KGDB
Will Drewry4095ccc2012-11-15 22:12:29 +010025 select HAVE_ARCH_SECCOMP_FILTER
Wade Farnsworth0693bf62012-04-04 16:19:47 +010026 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010027 select HAVE_BPF_JIT
28 select HAVE_C_RECORDMCOUNT
29 select HAVE_DEBUG_KMEMLEAK
30 select HAVE_DMA_API_DEBUG
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_CONTIGUOUS if MMU
33 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
34 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
35 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
36 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
37 select HAVE_GENERIC_DMA_COHERENT
38 select HAVE_GENERIC_HARDIRQS
39 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
40 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010041 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010042 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070043 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010044 select HAVE_KERNEL_LZMA
45 select HAVE_KERNEL_LZO
46 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010047 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080048 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010049 select HAVE_MEMBLOCK
50 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010051 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010052 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070054 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000055 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010056 select PERF_USE_VMALLOC
57 select RTC_LIB
58 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093059 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
60 select MODULES_USE_ELF_REL
Al Viro38a61b62012-10-21 15:54:27 -040061 select CLONE_BACKWARDS
Al Virob68fec22012-12-25 16:29:48 -050062 select OLD_SIGSUSPEND3
Al Viro50bcb7e2012-12-25 19:32:07 -050063 select OLD_SIGACTION
Kevin Hilmanb0088482013-03-28 22:54:40 +010064 select HAVE_CONTEXT_TRACKING
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 help
66 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000067 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000069 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 Europe. There is an ARM Linux project with a web page at
71 <http://www.arm.linux.org.uk/>.
72
Russell King74facff2011-06-02 11:16:22 +010073config ARM_HAS_SG_CHAIN
74 bool
75
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020076config NEED_SG_DMA_LENGTH
77 bool
78
79config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020080 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010081 select ARM_HAS_SG_CHAIN
82 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020083
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090084if ARM_DMA_USE_IOMMU
85
86config ARM_DMA_IOMMU_ALIGNMENT
87 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
88 range 4 9
89 default 8
90 help
91 DMA mapping framework by default aligns all buffers to the smallest
92 PAGE_SIZE order which is greater than or equal to the requested buffer
93 size. This works well for buffers up to a few hundreds kilobytes, but
94 for larger buffers it just a waste of address space. Drivers which has
95 relatively small addressing window (like 64Mib) might run out of
96 virtual space with just a few allocations.
97
98 With this parameter you can specify the maximum PAGE_SIZE order for
99 DMA IOMMU buffers. Larger buffers will be aligned only to this
100 specified order. The order is expressed as a power of two multiplied
101 by the PAGE_SIZE.
102
103endif
104
Russell King1a189b92008-04-13 21:41:55 +0100105config HAVE_PWM
106 bool
107
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100108config MIGHT_HAVE_PCI
109 bool
110
Ralf Baechle75e71532007-02-09 17:08:58 +0000111config SYS_SUPPORTS_APM_EMULATION
112 bool
113
Linus Walleijbc581772009-09-15 17:30:37 +0100114config HAVE_TCM
115 bool
116 select GENERIC_ALLOCATOR
117
Russell Kinge119bff2010-01-10 17:23:29 +0000118config HAVE_PROC_CPU
119 bool
120
Al Viro5ea81762007-02-11 15:41:31 +0000121config NO_IOPORT
122 bool
Al Viro5ea81762007-02-11 15:41:31 +0000123
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124config EISA
125 bool
126 ---help---
127 The Extended Industry Standard Architecture (EISA) bus was
128 developed as an open alternative to the IBM MicroChannel bus.
129
130 The EISA bus provided some of the features of the IBM MicroChannel
131 bus while maintaining backward compatibility with cards made for
132 the older ISA bus. The EISA bus saw limited use between 1988 and
133 1995 when it was made obsolete by the PCI bus.
134
135 Say Y here if you are building a kernel for an EISA-based machine.
136
137 Otherwise, say N.
138
139config SBUS
140 bool
141
Russell Kingf16fb1e2007-04-28 09:59:37 +0100142config STACKTRACE_SUPPORT
143 bool
144 default y
145
Nicolas Pitref76e9152008-04-24 01:31:46 -0400146config HAVE_LATENCYTOP_SUPPORT
147 bool
148 depends on !SMP
149 default y
150
Russell Kingf16fb1e2007-04-28 09:59:37 +0100151config LOCKDEP_SUPPORT
152 bool
153 default y
154
Russell King7ad1bcb2006-08-27 12:07:02 +0100155config TRACE_IRQFLAGS_SUPPORT
156 bool
157 default y
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config RWSEM_GENERIC_SPINLOCK
160 bool
161 default y
162
163config RWSEM_XCHGADD_ALGORITHM
164 bool
165
David Howellsf0d1b0b2006-12-08 02:37:49 -0800166config ARCH_HAS_ILOG2_U32
167 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800168
169config ARCH_HAS_ILOG2_U64
170 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800171
Ben Dooks89c52ed2009-07-30 23:23:24 +0100172config ARCH_HAS_CPUFREQ
173 bool
174 help
175 Internal node to signify that the ARCH has CPUFREQ support
176 and that the relevant menu configurations are displayed for
177 it.
178
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100179config ARCH_HAS_BANDGAP
180 bool
181
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800182config GENERIC_HWEIGHT
183 bool
184 default y
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186config GENERIC_CALIBRATE_DELAY
187 bool
188 default y
189
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100190config ARCH_MAY_HAVE_PC_FDC
191 bool
192
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800193config ZONE_DMA
194 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800195
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800196config NEED_DMA_MAP_STATE
197 def_bool y
198
Rob Herring58af4a22012-03-20 14:33:01 -0500199config ARCH_HAS_DMA_SET_COHERENT_MASK
200 bool
201
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202config GENERIC_ISA_DMA
203 bool
204
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205config FIQ
206 bool
207
Rob Herring13a50452012-02-07 09:28:22 -0600208config NEED_RET_TO_USER
209 bool
210
Al Viro034d2f52005-12-19 16:27:59 -0500211config ARCH_MTD_XIP
212 bool
213
Hyok S. Choic760fc12006-03-27 15:18:50 +0100214config VECTORS_BASE
215 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900216 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100217 default DRAM_BASE if REMAP_VECTORS_TO_RAM
218 default 0x00000000
219 help
Russell King19accfd2013-07-04 11:40:32 +0100220 The base address of exception vectors. This must be two pages
221 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100222
Russell Kingdc21af92011-01-04 19:09:43 +0000223config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100224 bool "Patch physical to virtual translations at runtime" if EMBEDDED
225 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100226 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000227 depends on !ARCH_REALVIEW || !SPARSEMEM
228 help
Russell King111e9a52011-05-12 10:02:42 +0100229 Patch phys-to-virt and virt-to-phys translation functions at
230 boot and module load time according to the position of the
231 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000232
Russell King111e9a52011-05-12 10:02:42 +0100233 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100234 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000235
Russell Kingc1beced2011-08-10 10:23:45 +0100236 Only disable this option if you know that you do not require
237 this feature (eg, building a kernel for a single machine) and
238 you need to shrink the kernel to the minimal size.
239
Rob Herring01464222012-08-28 13:06:41 -0500240config NEED_MACH_GPIO_H
241 bool
242 help
243 Select this when mach/gpio.h is required to provide special
244 definitions for this platform. The need for mach/gpio.h should
245 be avoided when possible.
246
Rob Herringc334bc12012-03-04 22:03:33 -0600247config NEED_MACH_IO_H
248 bool
249 help
250 Select this when mach/io.h is required to provide special
251 definitions for this platform. The need for mach/io.h should
252 be avoided when possible.
253
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400254config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400255 bool
Russell King111e9a52011-05-12 10:02:42 +0100256 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400257 Select this when mach/memory.h is required to provide special
258 definitions for this platform. The need for mach/memory.h should
259 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400260
261config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100262 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400263 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100264 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400265 help
266 Please provide the physical address corresponding to the
267 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000268
Simon Glass87e040b2011-08-16 23:44:26 +0100269config GENERIC_BUG
270 def_bool y
271 depends on BUG
272
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273source "init/Kconfig"
274
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700275source "kernel/Kconfig.freezer"
276
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277menu "System Type"
278
Hyok S. Choi3c427972009-07-24 12:35:00 +0100279config MMU
280 bool "MMU-based Paged Memory Management Support"
281 default y
282 help
283 Select if you want MMU-based virtualised addressing space
284 support by paged memory management. If unsure, say 'Y'.
285
Russell Kingccf50e22010-03-15 19:03:06 +0000286#
287# The "ARM system type" choice list is ordered alphabetically by option
288# text. Please add new entries in the option alphabetic order.
289#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290choice
291 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100292 default ARCH_VERSATILE if !MMU
293 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294
Rob Herring387798b2012-09-06 13:41:12 -0500295config ARCH_MULTIPLATFORM
296 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100297 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500298 select ARM_PATCH_PHYS_VIRT
299 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600300 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500301 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600302 select SPARSE_IRQ
303 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600304
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100305config ARCH_INTEGRATOR
306 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100307 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100308 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200309 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200310 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100311 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100312 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000313 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100314 select MULTI_IRQ_HANDLER
315 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000316 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100317 select SPARSE_IRQ
Linus Walleij2389d502012-10-31 22:04:31 +0100318 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100319 help
320 Support for ARM's Integrator platform.
321
322config ARCH_REALVIEW
323 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100324 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100325 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100326 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200327 select COMMON_CLK
328 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100329 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100330 select GPIO_PL061 if GPIOLIB
331 select ICST
332 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000333 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000334 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100335 help
336 This enables support for ARM Ltd RealView boards.
337
338config ARCH_VERSATILE
339 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100340 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100341 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100342 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100343 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100344 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100345 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900346 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000347 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000348 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000349 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100350 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100351 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100352 help
353 This enables support for ARM Ltd Versatile board.
354
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100355config ARCH_AT91
356 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100357 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100358 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100359 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100360 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500361 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500362 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800363 select PINCTRL
364 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100365 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100366 This enables support for systems based on Atmel
367 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100368
Russell King93e22562012-10-12 14:20:52 +0100369config ARCH_CLPS711X
370 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400371 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400372 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100373 select CLKDEV_LOOKUP
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400374 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100375 select COMMON_CLK
376 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400377 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400378 select MFD_SYSCON
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400379 select MULTI_IRQ_HANDLER
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400380 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100381 help
382 Support for Cirrus Logic 711x/721x/731x based boards.
383
Russell King788c9702009-04-26 14:21:59 +0100384config ARCH_GEMINI
385 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100386 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000387 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann662146b2013-01-04 13:38:03 +0000388 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100389 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100390 help
391 Support for the Cortina Systems Gemini family SoCs
392
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393config ARCH_EBSA110
394 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100395 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000396 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100397 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600398 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400399 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100400 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 help
402 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000403 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404 Ethernet interface, two PCMCIA sockets, two serial ports and a
405 parallel port.
406
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000407config ARCH_EP93XX
408 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100409 select ARCH_HAS_HOLES_MEMORYMODEL
410 select ARCH_REQUIRE_GPIOLIB
411 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000412 select ARM_AMBA
413 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100414 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100415 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100416 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000417 help
418 This enables support for the Cirrus EP93xx series of CPUs.
419
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420config ARCH_FOOTBRIDGE
421 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000422 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000424 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200425 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600426 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400427 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000428 help
429 Support for systems based on the DC21285 companion chip
430 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100432config ARCH_NETX
433 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100434 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100435 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000436 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100437 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000438 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100439 This enables support for systems based on the Hilscher NetX Soc
440
Russell King3b938be2007-05-12 11:25:44 +0100441config ARCH_IOP13XX
442 bool "IOP13xx-based"
443 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100444 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100445 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400446 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600447 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100448 select PCI
449 select PLAT_IOP
450 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100451 help
452 Support for Intel's IOP13XX (XScale) family of processors.
453
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100454config ARCH_IOP32X
455 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100456 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100457 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000458 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500459 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600460 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100461 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100462 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000463 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100464 Support for Intel's 80219 and IOP32X (XScale) family of
465 processors.
466
467config ARCH_IOP33X
468 bool "IOP33x-based"
469 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100470 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000471 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500472 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600473 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100474 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100475 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100476 help
477 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478
Russell King3b938be2007-05-12 11:25:44 +0100479config ARCH_IXP4XX
480 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100481 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500482 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100483 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100484 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000485 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100486 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100487 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100488 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600489 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200490 select USB_EHCI_BIG_ENDIAN_MMIO
491 select USB_EHCI_BIG_ENDIAN_DESC
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100492 help
Russell King3b938be2007-05-12 11:25:44 +0100493 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100494
Saeed Bisharaedabd382009-08-06 15:12:43 +0300495config ARCH_DOVE
496 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300497 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100498 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300499 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100500 select MIGHT_HAVE_PCI
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100501 select PINCTRL
502 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200503 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100504 select USB_ARCH_HAS_EHCI
Thomas Petazzoni7d554902013-03-21 17:59:17 +0100505 select MVEBU_MBUS
Saeed Bisharaedabd382009-08-06 15:12:43 +0300506 help
507 Support for the Marvell Dove SoC 88AP510
508
Saeed Bishara651c74c2008-06-22 22:45:06 +0200509config ARCH_KIRKWOOD
510 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100511 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700512 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100513 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200514 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100515 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700516 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100517 select PINCTRL
518 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200519 select PLAT_ORION_LEGACY
Thomas Petazzoni5cc06732013-03-21 17:59:16 +0100520 select MVEBU_MBUS
Saeed Bishara651c74c2008-06-22 22:45:06 +0200521 help
522 Support for the following Marvell Kirkwood series SoCs:
523 88F6180, 88F6192 and 88F6281.
524
Russell King788c9702009-04-26 14:21:59 +0100525config ARCH_MV78XX0
526 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700527 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100528 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100529 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100530 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200531 select PLAT_ORION_LEGACY
Thomas Petazzoni95b80e02013-03-21 17:59:19 +0100532 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100533 help
534 Support for the following Marvell MV78xx0 series SoCs:
535 MV781x0, MV782x0.
536
537config ARCH_ORION5X
538 bool "Marvell Orion"
539 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700540 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100541 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100542 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100543 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200544 select PLAT_ORION_LEGACY
Thomas Petazzoni5d1190e2013-03-21 17:59:18 +0100545 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100546 help
547 Support for the following Marvell Orion 5x series SoCs:
548 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
549 Orion-2 (5281), Orion-1-90 (6183).
550
551config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500552 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100553 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100554 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100555 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100556 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100557 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800558 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800559 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100560 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800561 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100562 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400563 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100564 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500565 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100566
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100567config ARCH_KS8695
568 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100569 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200570 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100571 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200572 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100573 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100574 help
575 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
576 System-on-Chip devices.
577
Russell King788c9702009-04-26 14:21:59 +0100578config ARCH_W90X900
579 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100580 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100581 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100582 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100583 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100584 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200585 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100586 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
587 At present, the w90x900 has been renamed nuc900, regarding
588 the ARM series product line, you can login the following
589 link address to know more.
590
591 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
592 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400593
Russell King93e22562012-10-12 14:20:52 +0100594config ARCH_LPC32XX
595 bool "NXP LPC32XX"
596 select ARCH_REQUIRE_GPIOLIB
597 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000598 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100599 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100600 select CPU_ARM926T
601 select GENERIC_CLOCKEVENTS
602 select HAVE_IDE
603 select HAVE_PWM
604 select USB_ARCH_HAS_OHCI
605 select USE_OF
606 help
607 Support for the NXP LPC32XX family of processors
608
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700610 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100611 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100612 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100613 select ARCH_MTD_XIP
614 select ARCH_REQUIRE_GPIOLIB
615 select ARM_CPU_SUSPEND if PM
616 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100617 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100618 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100619 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800620 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100621 select HAVE_IDE
622 select MULTI_IRQ_HANDLER
623 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800624 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800625 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000626 help
eric miao2c8086a2007-09-11 19:13:17 -0700627 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628
Russell King788c9702009-04-26 14:21:59 +0100629config ARCH_MSM
630 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700631 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800632 select CLKDEV_LOOKUP
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700633 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100634 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800635 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800636 Support for Qualcomm MSM/QSD based systems. This runs on the
637 apps processor of the MSM/QSD and depends on a shared memory
638 interface to the modem processor which runs the baseband
639 stack and controls some vital subsystems
640 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800641
Magnus Dammc793c1b2010-02-05 11:14:49 +0000642config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900643 bool "Renesas SH-Mobile / R-Mobile"
Magnus Damm69469992013-06-10 18:46:47 +0900644 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900645 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100646 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800647 select HAVE_ARM_SCU if SMP
648 select HAVE_ARM_TWD if LOCAL_TIMERS
Russell Kingb1b3f492012-10-06 17:12:25 +0100649 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900650 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000651 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000652 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000653 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100654 select NO_IOPORT
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200655 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100656 select PM_GENERIC_DOMAINS if PM
657 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000658 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900659 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000660
Linus Torvalds1da177e2005-04-16 15:20:36 -0700661config ARCH_RPC
662 bool "RiscPC"
663 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100664 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100665 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000666 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100667 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200668 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100669 select HAVE_PATA_PLATFORM
670 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600671 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400672 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100673 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100674 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675 help
676 On the Acorn Risc-PC, Linux can support the internal IDE disk and
677 CD-ROM interface, serial and parallel port, and the floppy drive.
678
679config ARCH_SA1100
680 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100681 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100682 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700683 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100684 select ARCH_SPARSEMEM_ENABLE
685 select CLKDEV_LOOKUP
686 select CLKSRC_MMIO
687 select CPU_FREQ
688 select CPU_SA1100
689 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200690 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100691 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500692 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400693 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100694 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000695 help
696 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900698config ARCH_S3C24XX
699 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100700 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900701 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100702 select CLKDEV_LOOKUP
Romain Naour7f78b6e2013-01-09 18:47:04 -0800703 select CLKSRC_MMIO
704 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900705 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100706 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900707 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900708 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900710 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500711 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600712 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900713 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900715 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
716 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
717 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
718 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900719
Ben Dooksa08ab632008-10-21 14:06:39 +0100720config ARCH_S3C64XX
721 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100722 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900723 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100724 select ARM_VIC
725 select CLKDEV_LOOKUP
Romain Naour04a49b72013-01-09 18:47:04 -0800726 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100727 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800728 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900729 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100730 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900731 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900732 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100733 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500734 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100735 select NO_IOPORT
736 select PLAT_SAMSUNG
737 select S3C_DEV_NAND
738 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900739 select SAMSUNG_ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100740 select SAMSUNG_CLKSRC
741 select SAMSUNG_GPIOLIB_4BIT
742 select SAMSUNG_IRQ_VIC_TIMER
Tomasz Figa88f59732013-06-17 23:45:37 +0900743 select SAMSUNG_WDT_RESET
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100745 help
746 Samsung S3C64XX series based systems
747
Kukjin Kim49b7a492010-09-07 15:47:18 +0900748config ARCH_S5P64X0
749 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900750 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900751 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100752 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900753 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900754 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100755 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900756 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900758 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500759 select NEED_MACH_GPIO_H
Tomasz Figa88f59732013-06-17 23:45:37 +0900760 select SAMSUNG_WDT_RESET
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900761 select SAMSUNG_ATAGS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900762 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900763 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
764 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900765
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200766config ARCH_S5PC100
767 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900768 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900769 select CLKDEV_LOOKUP
Romain Naour6a5a2e32013-01-09 18:47:04 -0800770 select CLKSRC_MMIO
Byungho Min5a7652f2009-06-23 21:39:42 +0900771 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800772 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900773 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100774 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900775 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900776 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100777 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500778 select NEED_MACH_GPIO_H
Tomasz Figa88f59732013-06-17 23:45:37 +0900779 select SAMSUNG_WDT_RESET
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900780 select SAMSUNG_ATAGS
Byungho Min5a7652f2009-06-23 21:39:42 +0900781 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200782 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900783
Kukjin Kim170f4e42010-02-24 16:40:44 +0900784config ARCH_S5PV210
785 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100786 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900787 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100788 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900789 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900790 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100791 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900792 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900793 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100794 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900795 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900796 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100797 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500798 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400799 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900800 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900801 help
802 Samsung S5PV210/S5PC110 series based systems
803
Kukjin Kim83014572011-11-06 13:54:56 +0900804config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100805 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100806 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900807 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900808 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100809 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900810 select ARM_GIC
Russell Kingb1b3f492012-10-06 17:12:25 +0100811 select CLKDEV_LOOKUP
Olof Johansson340fcb52013-04-26 11:47:45 -0700812 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100813 select CPU_V7
814 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900815 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900816 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900817 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400819 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900820 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900821 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900822 help
Kukjin Kim83014572011-11-06 13:54:56 +0900823 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900824
Linus Torvalds1da177e2005-04-16 15:20:36 -0700825config ARCH_SHARK
826 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100827 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000828 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100829 select ISA
830 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400831 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100832 select PCI
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100833 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100834 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000835 help
836 Support for the StrongARM based Digital DNARD machine, also known
837 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100839config ARCH_DAVINCI
840 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100841 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700842 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100843 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700844 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100845 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100846 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100847 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500848 select NEED_MACH_GPIO_H
Matt Porter3ad7a422013-03-06 11:15:31 -0500849 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530850 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100851 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100852 help
853 Support for TI's DaVinci platform.
854
Tony Lindgrena0694862013-01-11 11:24:20 -0800855config ARCH_OMAP1
856 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600857 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100858 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100859 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800860 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100861 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200862 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100863 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100864 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800865 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100866 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800867 select HAVE_IDE
868 select IRQ_DOMAIN
869 select NEED_MACH_IO_H if PCCARD
870 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100871 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800872 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800873
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874endchoice
875
Rob Herring387798b2012-09-06 13:41:12 -0500876menu "Multiple platform selection"
877 depends on ARCH_MULTIPLATFORM
878
879comment "CPU Core family selection"
880
Rob Herring387798b2012-09-06 13:41:12 -0500881config ARCH_MULTI_V4T
882 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500883 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100884 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200885 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
886 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
887 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500888
889config ARCH_MULTI_V5
890 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500891 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100892 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200893 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
894 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
895 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500896
897config ARCH_MULTI_V4_V5
898 bool
899
900config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800901 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500902 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100903 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500904
905config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800906 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500907 default y
908 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100909 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500910
911config ARCH_MULTI_V6_V7
912 bool
913
914config ARCH_MULTI_CPU_AUTO
915 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
916 select ARCH_MULTI_V5
917
918endmenu
919
Russell Kingccf50e22010-03-15 19:03:06 +0000920#
921# This is sorted alphabetically by mach-* pathname. However, plat-*
922# Kconfigs may be included either alphabetically (according to the
923# plat- suffix) or along side the corresponding mach-* source.
924#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200925source "arch/arm/mach-mvebu/Kconfig"
926
Russell King95b8f202010-01-14 11:43:54 +0000927source "arch/arm/mach-at91/Kconfig"
928
Christian Daudt8ac49e02012-11-19 09:46:10 -0800929source "arch/arm/mach-bcm/Kconfig"
930
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600931source "arch/arm/mach-bcm2835/Kconfig"
932
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933source "arch/arm/mach-clps711x/Kconfig"
934
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300935source "arch/arm/mach-cns3xxx/Kconfig"
936
Russell King95b8f202010-01-14 11:43:54 +0000937source "arch/arm/mach-davinci/Kconfig"
938
939source "arch/arm/mach-dove/Kconfig"
940
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000941source "arch/arm/mach-ep93xx/Kconfig"
942
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943source "arch/arm/mach-footbridge/Kconfig"
944
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200945source "arch/arm/mach-gemini/Kconfig"
946
Rob Herring387798b2012-09-06 13:41:12 -0500947source "arch/arm/mach-highbank/Kconfig"
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949source "arch/arm/mach-integrator/Kconfig"
950
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100951source "arch/arm/mach-iop32x/Kconfig"
952
953source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700954
Dan Williams285f5fa2006-12-07 02:59:39 +0100955source "arch/arm/mach-iop13xx/Kconfig"
956
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957source "arch/arm/mach-ixp4xx/Kconfig"
958
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400959source "arch/arm/mach-keystone/Kconfig"
960
Russell King95b8f202010-01-14 11:43:54 +0000961source "arch/arm/mach-kirkwood/Kconfig"
962
963source "arch/arm/mach-ks8695/Kconfig"
964
Russell King95b8f202010-01-14 11:43:54 +0000965source "arch/arm/mach-msm/Kconfig"
966
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200967source "arch/arm/mach-mv78xx0/Kconfig"
968
Shawn Guo3995eb82012-09-13 19:48:07 +0800969source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800971source "arch/arm/mach-mxs/Kconfig"
972
Russell King95b8f202010-01-14 11:43:54 +0000973source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800974
Russell King95b8f202010-01-14 11:43:54 +0000975source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000976
Daniel Tang9851ca52013-06-11 18:40:17 +1000977source "arch/arm/mach-nspire/Kconfig"
978
Tony Lindgrend48af152005-07-10 19:58:17 +0100979source "arch/arm/plat-omap/Kconfig"
980
981source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700982
Tony Lindgren1dbae812005-11-10 14:26:51 +0000983source "arch/arm/mach-omap2/Kconfig"
984
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400985source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400986
Rob Herring387798b2012-09-06 13:41:12 -0500987source "arch/arm/mach-picoxcell/Kconfig"
988
Russell King95b8f202010-01-14 11:43:54 +0000989source "arch/arm/mach-pxa/Kconfig"
990source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991
Russell King95b8f202010-01-14 11:43:54 +0000992source "arch/arm/mach-mmp/Kconfig"
993
994source "arch/arm/mach-realview/Kconfig"
995
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200996source "arch/arm/mach-rockchip/Kconfig"
997
Russell King95b8f202010-01-14 11:43:54 +0000998source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300999
Ben Dookscf383672009-11-10 00:14:58 +00001000source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001001
Rob Herring387798b2012-09-06 13:41:12 -05001002source "arch/arm/mach-socfpga/Kconfig"
1003
Arnd Bergmanna7ed0992012-12-02 15:12:47 +01001004source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +01001005
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +01001006source "arch/arm/mach-sti/Kconfig"
1007
Kukjin Kim85fd6d62012-02-06 09:38:19 +09001008source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
Ben Dooksa08ab632008-10-21 14:06:39 +01001010if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +09001011source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001012endif
1013
Kukjin Kim49b7a492010-09-07 15:47:18 +09001014source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001015
Byungho Min5a7652f2009-06-23 21:39:42 +09001016source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001017
Kukjin Kim170f4e42010-02-24 16:40:44 +09001018source "arch/arm/mach-s5pv210/Kconfig"
1019
Kukjin Kim83014572011-11-06 13:54:56 +09001020source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001021
Russell King882d01f2010-03-02 23:40:15 +00001022source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023
Maxime Ripard3b526342012-11-08 12:40:16 +01001024source "arch/arm/mach-sunxi/Kconfig"
1025
Barry Song156a0992012-08-23 13:41:58 +08001026source "arch/arm/mach-prima2/Kconfig"
1027
Erik Gillingc5f80062010-01-21 16:53:02 -08001028source "arch/arm/mach-tegra/Kconfig"
1029
Russell King95b8f202010-01-14 11:43:54 +00001030source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031
Russell King95b8f202010-01-14 11:43:54 +00001032source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033
1034source "arch/arm/mach-versatile/Kconfig"
1035
Russell Kingceade892010-02-11 21:44:53 +00001036source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001037source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001038
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001039source "arch/arm/mach-virt/Kconfig"
1040
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001041source "arch/arm/mach-vt8500/Kconfig"
1042
wanzongshun7ec80dd2008-12-03 03:55:38 +01001043source "arch/arm/mach-w90x900/Kconfig"
1044
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001045source "arch/arm/mach-zynq/Kconfig"
1046
Linus Torvalds1da177e2005-04-16 15:20:36 -07001047# Definitions to make life easier
1048config ARCH_ACORN
1049 bool
1050
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001051config PLAT_IOP
1052 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001053 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001054
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001055config PLAT_ORION
1056 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001057 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001058 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001059 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001060 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001061
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001062config PLAT_ORION_LEGACY
1063 bool
1064 select PLAT_ORION
1065
Eric Miaobd5ce432009-01-20 12:06:01 +08001066config PLAT_PXA
1067 bool
1068
Russell Kingf4b8b312010-01-14 12:48:06 +00001069config PLAT_VERSATILE
1070 bool
1071
Russell Kinge3887712010-01-14 13:30:16 +00001072config ARM_TIMER_SP804
1073 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001074 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001075 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001076
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077source arch/arm/mm/Kconfig
1078
Russell King958cab02011-12-11 10:04:00 +00001079config ARM_NR_BANKS
1080 int
1081 default 16 if ARCH_EP93XX
1082 default 8
1083
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001084config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001085 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001086 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001087 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001088 help
1089 Enable support for iWMMXt context switching at run time if
1090 running on a CPU that supports it.
1091
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092config XSCALE_PMU
1093 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001094 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001095 default y
1096
eric miao52108642010-12-13 09:42:34 +01001097config MULTI_IRQ_HANDLER
1098 bool
1099 help
1100 Allow each machine to specify it's own IRQ handler at run time.
1101
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001102if !MMU
1103source "arch/arm/Kconfig-nommu"
1104endif
1105
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001106config PJ4B_ERRATA_4742
1107 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1108 depends on CPU_PJ4B && MACH_ARMADA_370
1109 default y
1110 help
1111 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1112 Event (WFE) IDLE states, a specific timing sensitivity exists between
1113 the retiring WFI/WFE instructions and the newly issued subsequent
1114 instructions. This sensitivity can result in a CPU hang scenario.
1115 Workaround:
1116 The software must insert either a Data Synchronization Barrier (DSB)
1117 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1118 instruction
1119
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001120config ARM_ERRATA_326103
1121 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1122 depends on CPU_V6
1123 help
1124 Executing a SWP instruction to read-only memory does not set bit 11
1125 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1126 treat the access as a read, preventing a COW from occurring and
1127 causing the faulting task to livelock.
1128
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001129config ARM_ERRATA_411920
1130 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001131 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001132 help
1133 Invalidation of the Instruction Cache operation can
1134 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1135 It does not affect the MPCore. This option enables the ARM Ltd.
1136 recommended workaround.
1137
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001138config ARM_ERRATA_430973
1139 bool "ARM errata: Stale prediction on replaced interworking branch"
1140 depends on CPU_V7
1141 help
1142 This option enables the workaround for the 430973 Cortex-A8
1143 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1144 interworking branch is replaced with another code sequence at the
1145 same virtual address, whether due to self-modifying code or virtual
1146 to physical address re-mapping, Cortex-A8 does not recover from the
1147 stale interworking branch prediction. This results in Cortex-A8
1148 executing the new code sequence in the incorrect ARM or Thumb state.
1149 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1150 and also flushes the branch target cache at every context switch.
1151 Note that setting specific bits in the ACTLR register may not be
1152 available in non-secure mode.
1153
Catalin Marinas855c5512009-04-30 17:06:15 +01001154config ARM_ERRATA_458693
1155 bool "ARM errata: Processor deadlock when a false hazard is created"
1156 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001157 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001158 help
1159 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1160 erratum. For very specific sequences of memory operations, it is
1161 possible for a hazard condition intended for a cache line to instead
1162 be incorrectly associated with a different cache line. This false
1163 hazard might then cause a processor deadlock. The workaround enables
1164 the L1 caching of the NEON accesses and disables the PLD instruction
1165 in the ACTLR register. Note that setting specific bits in the ACTLR
1166 register may not be available in non-secure mode.
1167
Catalin Marinas0516e462009-04-30 17:06:20 +01001168config ARM_ERRATA_460075
1169 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1170 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001171 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001172 help
1173 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1174 erratum. Any asynchronous access to the L2 cache may encounter a
1175 situation in which recent store transactions to the L2 cache are lost
1176 and overwritten with stale memory contents from external memory. The
1177 workaround disables the write-allocate mode for the L2 cache via the
1178 ACTLR register. Note that setting specific bits in the ACTLR register
1179 may not be available in non-secure mode.
1180
Will Deacon9f050272010-09-14 09:51:43 +01001181config ARM_ERRATA_742230
1182 bool "ARM errata: DMB operation may be faulty"
1183 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001184 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001185 help
1186 This option enables the workaround for the 742230 Cortex-A9
1187 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1188 between two write operations may not ensure the correct visibility
1189 ordering of the two writes. This workaround sets a specific bit in
1190 the diagnostic register of the Cortex-A9 which causes the DMB
1191 instruction to behave as a DSB, ensuring the correct behaviour of
1192 the two writes.
1193
Will Deacona672e992010-09-14 09:53:02 +01001194config ARM_ERRATA_742231
1195 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1196 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001197 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001198 help
1199 This option enables the workaround for the 742231 Cortex-A9
1200 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1201 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1202 accessing some data located in the same cache line, may get corrupted
1203 data due to bad handling of the address hazard when the line gets
1204 replaced from one of the CPUs at the same time as another CPU is
1205 accessing it. This workaround sets specific bits in the diagnostic
1206 register of the Cortex-A9 which reduces the linefill issuing
1207 capabilities of the processor.
1208
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001209config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001210 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001211 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001212 help
1213 The PL310 L2 cache controller implements three types of Clean &
1214 Invalidate maintenance operations: by Physical Address
1215 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1216 They are architecturally defined to behave as the execution of a
1217 clean operation followed immediately by an invalidate operation,
1218 both performing to the same memory location. This functionality
1219 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001220 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001221
Jon Medhurst69155792013-06-07 10:35:35 +01001222config ARM_ERRATA_643719
1223 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1224 depends on CPU_V7 && SMP
1225 help
1226 This option enables the workaround for the 643719 Cortex-A9 (prior to
1227 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1228 register returns zero when it should return one. The workaround
1229 corrects this value, ensuring cache maintenance operations which use
1230 it behave as intended and avoiding data corruption.
1231
Will Deaconcdf357f2010-08-05 11:20:51 +01001232config ARM_ERRATA_720789
1233 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001234 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001235 help
1236 This option enables the workaround for the 720789 Cortex-A9 (prior to
1237 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1238 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1239 As a consequence of this erratum, some TLB entries which should be
1240 invalidated are not, resulting in an incoherency in the system page
1241 tables. The workaround changes the TLB flushing routines to invalidate
1242 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001243
Russell King1f0090a2011-03-16 23:35:25 +00001244config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001245 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001246 depends on CACHE_L2X0
1247 help
1248 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1249 operation (offset 0x7FC). This operation runs in background so that
1250 PL310 can handle normal accesses while it is in progress. Under very
1251 rare circumstances, due to this erratum, write data can be lost when
1252 PL310 treats a cacheable write transaction during a Clean &
1253 Invalidate by Way operation.
1254
Will Deacon475d92f2010-09-28 14:02:02 +01001255config ARM_ERRATA_743622
1256 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1257 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001258 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001259 help
1260 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001261 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001262 optimisation in the Cortex-A9 Store Buffer may lead to data
1263 corruption. This workaround sets a specific bit in the diagnostic
1264 register of the Cortex-A9 which disables the Store Buffer
1265 optimisation, preventing the defect from occurring. This has no
1266 visible impact on the overall performance or power consumption of the
1267 processor.
1268
Will Deacon9a27c272011-02-18 16:36:35 +01001269config ARM_ERRATA_751472
1270 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001271 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001272 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001273 help
1274 This option enables the workaround for the 751472 Cortex-A9 (prior
1275 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1276 completion of a following broadcasted operation if the second
1277 operation is received by a CPU before the ICIALLUIS has completed,
1278 potentially leading to corrupted entries in the cache or TLB.
1279
Will Deaconfa0ce402011-11-14 17:24:57 +01001280config PL310_ERRATA_753970
1281 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001282 depends on CACHE_PL310
1283 help
1284 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1285
1286 Under some condition the effect of cache sync operation on
1287 the store buffer still remains when the operation completes.
1288 This means that the store buffer is always asked to drain and
1289 this prevents it from merging any further writes. The workaround
1290 is to replace the normal offset of cache sync operation (0x730)
1291 by another offset targeting an unmapped PL310 register 0x740.
1292 This has the same effect as the cache sync operation: store buffer
1293 drain and waiting for all buffers empty.
1294
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001295config ARM_ERRATA_754322
1296 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1297 depends on CPU_V7
1298 help
1299 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1300 r3p*) erratum. A speculative memory access may cause a page table walk
1301 which starts prior to an ASID switch but completes afterwards. This
1302 can populate the micro-TLB with a stale entry which may be hit with
1303 the new ASID. This workaround places two dsb instructions in the mm
1304 switching code so that no page table walks can cross the ASID switch.
1305
Will Deacon5dab26af2011-03-04 12:38:54 +01001306config ARM_ERRATA_754327
1307 bool "ARM errata: no automatic Store Buffer drain"
1308 depends on CPU_V7 && SMP
1309 help
1310 This option enables the workaround for the 754327 Cortex-A9 (prior to
1311 r2p0) erratum. The Store Buffer does not have any automatic draining
1312 mechanism and therefore a livelock may occur if an external agent
1313 continuously polls a memory location waiting to observe an update.
1314 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1315 written polling loops from denying visibility of updates to memory.
1316
Catalin Marinas145e10e2011-08-15 11:04:41 +01001317config ARM_ERRATA_364296
1318 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001319 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001320 help
1321 This options enables the workaround for the 364296 ARM1136
1322 r0p2 erratum (possible cache data corruption with
1323 hit-under-miss enabled). It sets the undocumented bit 31 in
1324 the auxiliary control register and the FI bit in the control
1325 register, thus disabling hit-under-miss without putting the
1326 processor into full low interrupt latency mode. ARM11MPCore
1327 is not affected.
1328
Will Deaconf630c1b2011-09-15 11:45:15 +01001329config ARM_ERRATA_764369
1330 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1331 depends on CPU_V7 && SMP
1332 help
1333 This option enables the workaround for erratum 764369
1334 affecting Cortex-A9 MPCore with two or more processors (all
1335 current revisions). Under certain timing circumstances, a data
1336 cache line maintenance operation by MVA targeting an Inner
1337 Shareable memory region may fail to proceed up to either the
1338 Point of Coherency or to the Point of Unification of the
1339 system. This workaround adds a DSB instruction before the
1340 relevant cache maintenance functions and sets a specific bit
1341 in the diagnostic control register of the SCU.
1342
Will Deacon11ed0ba2011-11-14 17:24:58 +01001343config PL310_ERRATA_769419
1344 bool "PL310 errata: no automatic Store Buffer drain"
1345 depends on CACHE_L2X0
1346 help
1347 On revisions of the PL310 prior to r3p2, the Store Buffer does
1348 not automatically drain. This can cause normal, non-cacheable
1349 writes to be retained when the memory system is idle, leading
1350 to suboptimal I/O performance for drivers using coherent DMA.
1351 This option adds a write barrier to the cpu_idle loop so that,
1352 on systems with an outer cache, the store buffer is drained
1353 explicitly.
1354
Simon Horman7253b852012-09-28 02:12:45 +01001355config ARM_ERRATA_775420
1356 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1357 depends on CPU_V7
1358 help
1359 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1360 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1361 operation aborts with MMU exception, it might cause the processor
1362 to deadlock. This workaround puts DSB before executing ISB if
1363 an abort may occur on cache maintenance.
1364
Catalin Marinas93dc6882013-03-26 23:35:04 +01001365config ARM_ERRATA_798181
1366 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1367 depends on CPU_V7 && SMP
1368 help
1369 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1370 adequately shooting down all use of the old entries. This
1371 option enables the Linux kernel workaround for this erratum
1372 which sends an IPI to the CPUs that are running the same ASID
1373 as the one being invalidated.
1374
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375endmenu
1376
1377source "arch/arm/common/Kconfig"
1378
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379menu "Bus support"
1380
1381config ARM_AMBA
1382 bool
1383
1384config ISA
1385 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001386 help
1387 Find out whether you have ISA slots on your motherboard. ISA is the
1388 name of a bus system, i.e. the way the CPU talks to the other stuff
1389 inside your box. Other bus systems are PCI, EISA, MicroChannel
1390 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1391 newer boards don't support it. If you have ISA, say Y, otherwise N.
1392
Russell King065909b2006-01-04 15:44:16 +00001393# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394config ISA_DMA
1395 bool
Russell King065909b2006-01-04 15:44:16 +00001396 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001397
Russell King065909b2006-01-04 15:44:16 +00001398# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001399config ISA_DMA_API
1400 bool
Al Viro5cae8412005-05-04 05:39:22 +01001401
Linus Torvalds1da177e2005-04-16 15:20:36 -07001402config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001403 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001404 help
1405 Find out whether you have a PCI motherboard. PCI is the name of a
1406 bus system, i.e. the way the CPU talks to the other stuff inside
1407 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1408 VESA. If you have PCI, say Y, otherwise N.
1409
Anton Vorontsov52882172010-04-19 13:20:49 +01001410config PCI_DOMAINS
1411 bool
1412 depends on PCI
1413
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001414config PCI_NANOENGINE
1415 bool "BSE nanoEngine PCI support"
1416 depends on SA1100_NANOENGINE
1417 help
1418 Enable PCI on the BSE nanoEngine board.
1419
Matthew Wilcox36e23592007-07-10 10:54:40 -06001420config PCI_SYSCALL
1421 def_bool PCI
1422
Linus Torvalds1da177e2005-04-16 15:20:36 -07001423# Select the host bridge type
1424config PCI_HOST_VIA82C505
1425 bool
1426 depends on PCI && ARCH_SHARK
1427 default y
1428
Mike Rapoporta0113a92007-11-25 08:55:34 +01001429config PCI_HOST_ITE8152
1430 bool
1431 depends on PCI && MACH_ARMCORE
1432 default y
1433 select DMABOUNCE
1434
Linus Torvalds1da177e2005-04-16 15:20:36 -07001435source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001436source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001437
1438source "drivers/pcmcia/Kconfig"
1439
1440endmenu
1441
1442menu "Kernel Features"
1443
Dave Martin3b556582011-12-07 15:38:04 +00001444config HAVE_SMP
1445 bool
1446 help
1447 This option should be selected by machines which have an SMP-
1448 capable CPU.
1449
1450 The only effect of this option is to make the SMP-related
1451 options available to the user for configuration.
1452
Linus Torvalds1da177e2005-04-16 15:20:36 -07001453config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001454 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001455 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001456 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001457 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001458 depends on MMU || ARM_MPU
Russell Kingb1b3f492012-10-06 17:12:25 +01001459 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460 help
1461 This enables support for systems with more than one CPU. If you have
1462 a system with only one CPU, like most personal computers, say N. If
1463 you have a system with more than one CPU, say Y.
1464
1465 If you say N here, the kernel will run on single and multiprocessor
1466 machines, but will use only one CPU of a multiprocessor machine. If
1467 you say Y here, the kernel will run on many, but not all, single
1468 processor machines. On a single processor machine, the kernel will
1469 run faster if you say N here.
1470
Paul Bolle395cf962011-08-15 02:02:26 +02001471 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001472 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001473 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001474
1475 If you don't know what to do here, say N.
1476
Russell Kingf00ec482010-09-04 10:47:48 +01001477config SMP_ON_UP
1478 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001479 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001480 default y
1481 help
1482 SMP kernels contain instructions which fail on non-SMP processors.
1483 Enabling this option allows the kernel to modify itself to make
1484 these instructions safe. Disabling it allows about 1K of space
1485 savings.
1486
1487 If you don't know what to do here, say Y.
1488
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001489config ARM_CPU_TOPOLOGY
1490 bool "Support cpu topology definition"
1491 depends on SMP && CPU_V7
1492 default y
1493 help
1494 Support ARM cpu topology definition. The MPIDR register defines
1495 affinity between processors which is then used to describe the cpu
1496 topology of an ARM System.
1497
1498config SCHED_MC
1499 bool "Multi-core scheduler support"
1500 depends on ARM_CPU_TOPOLOGY
1501 help
1502 Multi-core scheduler support improves the CPU scheduler's decision
1503 making when dealing with multi-core CPU chips at a cost of slightly
1504 increased overhead in some places. If unsure say N here.
1505
1506config SCHED_SMT
1507 bool "SMT scheduler support"
1508 depends on ARM_CPU_TOPOLOGY
1509 help
1510 Improves the CPU scheduler's decision making when dealing with
1511 MultiThreading at a cost of slightly increased overhead in some
1512 places. If unsure say N here.
1513
Russell Kinga8cbcd92009-05-16 11:51:14 +01001514config HAVE_ARM_SCU
1515 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001516 help
1517 This option enables support for the ARM system coherency unit
1518
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001519config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001520 bool "Architected timer support"
1521 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001522 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001523 help
1524 This option enables support for the ARM architected timer
1525
Russell Kingf32f4ce2009-05-16 12:14:21 +01001526config HAVE_ARM_TWD
1527 bool
1528 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001529 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001530 help
1531 This options enables support for the ARM timer and watchdog unit
1532
Nicolas Pitree8db2882012-04-12 02:45:22 -04001533config MCPM
1534 bool "Multi-Cluster Power Management"
1535 depends on CPU_V7 && SMP
1536 help
1537 This option provides the common power management infrastructure
1538 for (multi-)cluster based systems, such as big.LITTLE based
1539 systems.
1540
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001541choice
1542 prompt "Memory split"
1543 default VMSPLIT_3G
1544 help
1545 Select the desired split between kernel and user memory.
1546
1547 If you are not absolutely sure what you are doing, leave this
1548 option alone!
1549
1550 config VMSPLIT_3G
1551 bool "3G/1G user/kernel split"
1552 config VMSPLIT_2G
1553 bool "2G/2G user/kernel split"
1554 config VMSPLIT_1G
1555 bool "1G/3G user/kernel split"
1556endchoice
1557
1558config PAGE_OFFSET
1559 hex
1560 default 0x40000000 if VMSPLIT_1G
1561 default 0x80000000 if VMSPLIT_2G
1562 default 0xC0000000
1563
Linus Torvalds1da177e2005-04-16 15:20:36 -07001564config NR_CPUS
1565 int "Maximum number of CPUs (2-32)"
1566 range 2 32
1567 depends on SMP
1568 default "4"
1569
Russell Kinga054a812005-11-02 22:24:33 +00001570config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001571 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001572 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001573 help
1574 Say Y here to experiment with turning CPUs off and on. CPUs
1575 can be controlled through /sys/devices/system/cpu.
1576
Will Deacon2bdd4242012-12-12 19:20:52 +00001577config ARM_PSCI
1578 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1579 depends on CPU_V7
1580 help
1581 Say Y here if you want Linux to communicate with system firmware
1582 implementing the PSCI specification for CPU-centric power
1583 management operations described in ARM document number ARM DEN
1584 0022A ("Power State Coordination Interface System Software on
1585 ARM processors").
1586
Russell King37ee16a2005-11-08 19:08:05 +00001587config LOCAL_TIMERS
1588 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001589 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001590 default y
1591 help
1592 Enable support for local timers on SMP platforms, rather then the
1593 legacy IPI broadcast method. Local timers allows the system
1594 accounting to be spread across the timer interval, preventing a
1595 "thundering herd" at every timer tick.
1596
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001597# The GPIO number here must be sorted by descending number. In case of
1598# a multiplatform kernel, we just want the highest value required by the
1599# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001600config ARCH_NR_GPIO
1601 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001602 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
R Sricharan6d0fc192013-02-07 17:43:35 +05301603 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || SOC_DRA7XX
Olof Johansson06b851e2013-04-02 18:33:58 -07001604 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001605 default 352 if ARCH_VT8500
1606 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001607 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001608 default 0
1609 help
1610 Maximum number of GPIOs in the system.
1611
1612 If unsure, leave the default value.
1613
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001614source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001615
Russell Kingf8065812006-03-02 22:41:59 +00001616config HZ
1617 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001618 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001619 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001620 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001621 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001622 default 100
1623
Russell Kingb28748f2013-02-17 14:40:33 +00001624config SCHED_HRTICK
1625 def_bool HIGH_RES_TIMERS
1626
Catalin Marinas16c79652009-07-24 12:33:02 +01001627config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001628 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001629 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001630 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001631 select AEABI
1632 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001633 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001634 help
1635 By enabling this option, the kernel will be compiled in
1636 Thumb-2 mode. A compiler/assembler that understand the unified
1637 ARM-Thumb syntax is needed.
1638
1639 If unsure, say N.
1640
Dave Martin6f685c52011-03-03 11:41:12 +01001641config THUMB2_AVOID_R_ARM_THM_JUMP11
1642 bool "Work around buggy Thumb-2 short branch relocations in gas"
1643 depends on THUMB2_KERNEL && MODULES
1644 default y
1645 help
1646 Various binutils versions can resolve Thumb-2 branches to
1647 locally-defined, preemptible global symbols as short-range "b.n"
1648 branch instructions.
1649
1650 This is a problem, because there's no guarantee the final
1651 destination of the symbol, or any candidate locations for a
1652 trampoline, are within range of the branch. For this reason, the
1653 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1654 relocation in modules at all, and it makes little sense to add
1655 support.
1656
1657 The symptom is that the kernel fails with an "unsupported
1658 relocation" error when loading some modules.
1659
1660 Until fixed tools are available, passing
1661 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1662 code which hits this problem, at the cost of a bit of extra runtime
1663 stack usage in some cases.
1664
1665 The problem is described in more detail at:
1666 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1667
1668 Only Thumb-2 kernels are affected.
1669
1670 Unless you are sure your tools don't have this problem, say Y.
1671
Catalin Marinas0becb082009-07-24 12:32:53 +01001672config ARM_ASM_UNIFIED
1673 bool
1674
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001675config AEABI
1676 bool "Use the ARM EABI to compile the kernel"
1677 help
1678 This option allows for the kernel to be compiled using the latest
1679 ARM ABI (aka EABI). This is only useful if you are using a user
1680 space environment that is also compiled with EABI.
1681
1682 Since there are major incompatibilities between the legacy ABI and
1683 EABI, especially with regard to structure member alignment, this
1684 option also changes the kernel syscall calling convention to
1685 disambiguate both ABIs and allow for backward compatibility support
1686 (selected with CONFIG_OABI_COMPAT).
1687
1688 To use this you need GCC version 4.0.0 or later.
1689
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001690config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001691 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001692 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001693 default y
1694 help
1695 This option preserves the old syscall interface along with the
1696 new (ARM EABI) one. It also provides a compatibility layer to
1697 intercept syscalls that have structure arguments which layout
1698 in memory differs between the legacy ABI and the new ARM EABI
1699 (only for non "thumb" binaries). This option adds a tiny
1700 overhead to all syscalls and produces a slightly larger kernel.
1701 If you know you'll be using only pure EABI user space then you
1702 can say N here. If this option is not selected and you attempt
1703 to execute a legacy ABI binary then the result will be
1704 UNPREDICTABLE (in fact it can be predicted that it won't work
1705 at all). If in doubt say Y.
1706
Mel Gormaneb335752009-05-13 17:34:48 +01001707config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001708 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001709
Russell King05944d72006-11-30 20:43:51 +00001710config ARCH_SPARSEMEM_ENABLE
1711 bool
1712
Russell King07a2f732008-10-01 21:39:58 +01001713config ARCH_SPARSEMEM_DEFAULT
1714 def_bool ARCH_SPARSEMEM_ENABLE
1715
Russell King05944d72006-11-30 20:43:51 +00001716config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001717 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001718
Will Deacon7b7bf492011-05-19 13:21:14 +01001719config HAVE_ARCH_PFN_VALID
1720 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1721
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001722config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001723 bool "High Memory Support"
1724 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001725 help
1726 The address space of ARM processors is only 4 Gigabytes large
1727 and it has to accommodate user address space, kernel address
1728 space as well as some memory mapped IO. That means that, if you
1729 have a large amount of physical memory and/or IO, not all of the
1730 memory can be "permanently mapped" by the kernel. The physical
1731 memory that is not permanently mapped is called "high memory".
1732
1733 Depending on the selected kernel/user memory split, minimum
1734 vmalloc space and actual amount of RAM, you may not need this
1735 option which should result in a slightly faster kernel.
1736
1737 If unsure, say n.
1738
Russell King65cec8e2009-08-17 20:02:06 +01001739config HIGHPTE
1740 bool "Allocate 2nd-level pagetables from highmem"
1741 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001742
Jamie Iles1b8873a2010-02-02 20:25:44 +01001743config HW_PERF_EVENTS
1744 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001745 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001746 default y
1747 help
1748 Enable hardware performance counter support for perf events. If
1749 disabled, perf events will use software events only.
1750
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001751config SYS_SUPPORTS_HUGETLBFS
1752 def_bool y
1753 depends on ARM_LPAE
1754
Catalin Marinas8d962502012-07-25 14:39:26 +01001755config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1756 def_bool y
1757 depends on ARM_LPAE
1758
Dave Hansen3f22ab22005-06-23 00:07:43 -07001759source "mm/Kconfig"
1760
Magnus Dammc1b2d972010-07-05 10:00:11 +01001761config FORCE_MAX_ZONEORDER
1762 int "Maximum zone order" if ARCH_SHMOBILE
1763 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001764 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001765 default "9" if SA1111
1766 default "11"
1767 help
1768 The kernel memory allocator divides physically contiguous memory
1769 blocks into "zones", where each zone is a power of two number of
1770 pages. This option selects the largest power of two that the kernel
1771 keeps in the memory allocator. If you need to allocate very large
1772 blocks of physically contiguous memory, then you may need to
1773 increase this value.
1774
1775 This config option is actually maximum order plus one. For example,
1776 a value of 11 means that the largest free memory block is 2^10 pages.
1777
Linus Torvalds1da177e2005-04-16 15:20:36 -07001778config ALIGNMENT_TRAP
1779 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001780 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001782 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001783 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001784 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001785 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1786 address divisible by 4. On 32-bit ARM processors, these non-aligned
1787 fetch/store instructions will be emulated in software if you say
1788 here, which has a severe performance impact. This is necessary for
1789 correct operation of some network protocols. With an IP-only
1790 configuration it is safe to say N, otherwise say Y.
1791
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001792config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001793 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1794 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001795 default y if CPU_FEROCEON
1796 help
1797 Implement faster copy_to_user and clear_user methods for CPU
1798 cores where a 8-word STM instruction give significantly higher
1799 memory write throughput than a sequence of individual 32bit stores.
1800
1801 A possible side effect is a slight increase in scheduling latency
1802 between threads sharing the same address space if they invoke
1803 such copy operations with large buffers.
1804
1805 However, if the CPU data cache is using a write-allocate mode,
1806 this option is unlikely to provide any performance gain.
1807
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001808config SECCOMP
1809 bool
1810 prompt "Enable seccomp to safely compute untrusted bytecode"
1811 ---help---
1812 This kernel feature is useful for number crunching applications
1813 that may need to compute untrusted bytecode during their
1814 execution. By using pipes or other transports made available to
1815 the process as file descriptors supporting the read/write
1816 syscalls, it's possible to isolate those applications in
1817 their own address space using seccomp. Once seccomp is
1818 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1819 and the task is only allowed to execute a few safe syscalls
1820 defined by each seccomp mode.
1821
Nicolas Pitrec743f382010-05-24 23:55:42 -04001822config CC_STACKPROTECTOR
1823 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1824 help
1825 This option turns on the -fstack-protector GCC feature. This
1826 feature puts, at the beginning of functions, a canary value on
1827 the stack just before the return address, and validates
1828 the value just before actually returning. Stack based buffer
1829 overflows (that need to overwrite this return address) now also
1830 overwrite the canary, which gets detected and the attack is then
1831 neutralized via a kernel panic.
1832 This feature requires gcc version 4.2 or above.
1833
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001834config XEN_DOM0
1835 def_bool y
1836 depends on XEN
1837
1838config XEN
1839 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001840 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001841 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001842 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001843 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001844 help
1845 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1846
Linus Torvalds1da177e2005-04-16 15:20:36 -07001847endmenu
1848
1849menu "Boot options"
1850
Grant Likely9eb8f672011-04-28 14:27:20 -06001851config USE_OF
1852 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001853 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001854 select OF
1855 select OF_EARLY_FLATTREE
1856 help
1857 Include support for flattened device tree machine descriptions.
1858
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001859config ATAGS
1860 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1861 default y
1862 help
1863 This is the traditional way of passing data to the kernel at boot
1864 time. If you are solely relying on the flattened device tree (or
1865 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1866 to remove ATAGS support from your kernel binary. If unsure,
1867 leave this to y.
1868
1869config DEPRECATED_PARAM_STRUCT
1870 bool "Provide old way to pass kernel parameters"
1871 depends on ATAGS
1872 help
1873 This was deprecated in 2001 and announced to live on for 5 years.
1874 Some old boot loaders still use this way.
1875
Linus Torvalds1da177e2005-04-16 15:20:36 -07001876# Compressed boot loader in ROM. Yes, we really want to ask about
1877# TEXT and BSS so we preserve their values in the config files.
1878config ZBOOT_ROM_TEXT
1879 hex "Compressed ROM boot loader base address"
1880 default "0"
1881 help
1882 The physical address at which the ROM-able zImage is to be
1883 placed in the target. Platforms which normally make use of
1884 ROM-able zImage formats normally set this to a suitable
1885 value in their defconfig file.
1886
1887 If ZBOOT_ROM is not enabled, this has no effect.
1888
1889config ZBOOT_ROM_BSS
1890 hex "Compressed ROM boot loader BSS address"
1891 default "0"
1892 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001893 The base address of an area of read/write memory in the target
1894 for the ROM-able zImage which must be available while the
1895 decompressor is running. It must be large enough to hold the
1896 entire decompressed kernel plus an additional 128 KiB.
1897 Platforms which normally make use of ROM-able zImage formats
1898 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001899
1900 If ZBOOT_ROM is not enabled, this has no effect.
1901
1902config ZBOOT_ROM
1903 bool "Compressed boot loader in ROM/flash"
1904 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1905 help
1906 Say Y here if you intend to execute your compressed kernel image
1907 (zImage) directly from ROM or flash. If unsure, say N.
1908
Simon Horman090ab3f2011-04-26 06:29:53 +01001909choice
1910 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001911 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001912 default ZBOOT_ROM_NONE
1913 help
1914 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001915 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001916 kernel image to an MMC or SD card and boot the kernel straight
1917 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001918 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001919 rest the kernel image to RAM.
1920
1921config ZBOOT_ROM_NONE
1922 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1923 help
1924 Do not load image from SD or MMC
1925
Simon Hormanf45b1142011-01-11 04:01:08 +01001926config ZBOOT_ROM_MMCIF
1927 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001928 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001929 Load image from MMCIF hardware block.
1930
1931config ZBOOT_ROM_SH_MOBILE_SDHI
1932 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1933 help
1934 Load image from SDHI hardware block
1935
1936endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001937
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001938config ARM_APPENDED_DTB
1939 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001940 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001941 help
1942 With this option, the boot code will look for a device tree binary
1943 (DTB) appended to zImage
1944 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1945
1946 This is meant as a backward compatibility convenience for those
1947 systems with a bootloader that can't be upgraded to accommodate
1948 the documented boot protocol using a device tree.
1949
1950 Beware that there is very little in terms of protection against
1951 this option being confused by leftover garbage in memory that might
1952 look like a DTB header after a reboot if no actual DTB is appended
1953 to zImage. Do not leave this option active in a production kernel
1954 if you don't intend to always append a DTB. Proper passing of the
1955 location into r2 of a bootloader provided DTB is always preferable
1956 to this option.
1957
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001958config ARM_ATAG_DTB_COMPAT
1959 bool "Supplement the appended DTB with traditional ATAG information"
1960 depends on ARM_APPENDED_DTB
1961 help
1962 Some old bootloaders can't be updated to a DTB capable one, yet
1963 they provide ATAGs with memory configuration, the ramdisk address,
1964 the kernel cmdline string, etc. Such information is dynamically
1965 provided by the bootloader and can't always be stored in a static
1966 DTB. To allow a device tree enabled kernel to be used with such
1967 bootloaders, this option allows zImage to extract the information
1968 from the ATAG list and store it at run time into the appended DTB.
1969
Genoud Richardd0f34a112012-06-26 16:37:59 +01001970choice
1971 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1972 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1973
1974config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1975 bool "Use bootloader kernel arguments if available"
1976 help
1977 Uses the command-line options passed by the boot loader instead of
1978 the device tree bootargs property. If the boot loader doesn't provide
1979 any, the device tree bootargs property will be used.
1980
1981config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1982 bool "Extend with bootloader kernel arguments"
1983 help
1984 The command-line arguments provided by the boot loader will be
1985 appended to the the device tree bootargs property.
1986
1987endchoice
1988
Linus Torvalds1da177e2005-04-16 15:20:36 -07001989config CMDLINE
1990 string "Default kernel command string"
1991 default ""
1992 help
1993 On some architectures (EBSA110 and CATS), there is currently no way
1994 for the boot loader to pass arguments to the kernel. For these
1995 architectures, you should supply some command-line options at build
1996 time by entering them here. As a minimum, you should specify the
1997 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1998
Victor Boivie4394c122011-05-04 17:07:55 +01001999choice
2000 prompt "Kernel command line type" if CMDLINE != ""
2001 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002002 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01002003
2004config CMDLINE_FROM_BOOTLOADER
2005 bool "Use bootloader kernel arguments if available"
2006 help
2007 Uses the command-line options passed by the boot loader. If
2008 the boot loader doesn't provide any, the default kernel command
2009 string provided in CMDLINE will be used.
2010
2011config CMDLINE_EXTEND
2012 bool "Extend bootloader kernel arguments"
2013 help
2014 The command-line arguments provided by the boot loader will be
2015 appended to the default kernel command string.
2016
Alexander Holler92d20402010-02-16 19:04:53 +01002017config CMDLINE_FORCE
2018 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01002019 help
2020 Always use the default kernel command string, even if the boot
2021 loader passes other arguments to the kernel.
2022 This is useful if you cannot or don't want to change the
2023 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01002024endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01002025
Linus Torvalds1da177e2005-04-16 15:20:36 -07002026config XIP_KERNEL
2027 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05002028 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029 help
2030 Execute-In-Place allows the kernel to run from non-volatile storage
2031 directly addressable by the CPU, such as NOR flash. This saves RAM
2032 space since the text section of the kernel is not loaded from flash
2033 to RAM. Read-write sections, such as the data section and stack,
2034 are still copied to RAM. The XIP kernel is not compressed since
2035 it has to run directly from flash, so it will take more space to
2036 store it. The flash address used to link the kernel object files,
2037 and for storing it, is configuration dependent. Therefore, if you
2038 say Y here, you must know the proper physical address where to
2039 store the kernel image depending on your own flash memory usage.
2040
2041 Also note that the make target becomes "make xipImage" rather than
2042 "make zImage" or "make Image". The final kernel binary to put in
2043 ROM memory will be arch/arm/boot/xipImage.
2044
2045 If unsure, say N.
2046
2047config XIP_PHYS_ADDR
2048 hex "XIP Kernel Physical Location"
2049 depends on XIP_KERNEL
2050 default "0x00080000"
2051 help
2052 This is the physical address in your flash memory the kernel will
2053 be linked for and stored to. This address is dependent on your
2054 own flash usage.
2055
Richard Purdiec587e4a2007-02-06 21:29:00 +01002056config KEXEC
2057 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01002058 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002059 help
2060 kexec is a system call that implements the ability to shutdown your
2061 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002062 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002063 you can start any kernel with it, not just Linux.
2064
2065 It is an ongoing process to be certain the hardware in a machine
2066 is properly shutdown, so do not be surprised if this code does not
2067 initially work for you. It may help to enable device hotplugging
2068 support.
2069
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002070config ATAGS_PROC
2071 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002072 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002073 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002074 help
2075 Should the atags used to boot the kernel be exported in an "atags"
2076 file in procfs. Useful with kexec.
2077
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002078config CRASH_DUMP
2079 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002080 help
2081 Generate crash dump after being started by kexec. This should
2082 be normally only set in special crash dump kernels which are
2083 loaded in the main kernel with kexec-tools into a specially
2084 reserved region and then later executed after a crash by
2085 kdump/kexec. The crash dump kernel must be compiled to a
2086 memory address not used by the main kernel
2087
2088 For more details see Documentation/kdump/kdump.txt
2089
Eric Miaoe69edc792010-07-05 15:56:50 +02002090config AUTO_ZRELADDR
2091 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002092 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002093 help
2094 ZRELADDR is the physical address where the decompressed kernel
2095 image will be placed. If AUTO_ZRELADDR is selected, the address
2096 will be determined at run-time by masking the current IP with
2097 0xf8000000. This assumes the zImage being placed in the first 128MB
2098 from start of memory.
2099
Linus Torvalds1da177e2005-04-16 15:20:36 -07002100endmenu
2101
Russell Kingac9d7ef2008-08-18 17:26:00 +01002102menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103
Ben Dooks89c52ed2009-07-30 23:23:24 +01002104if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002106endif
2107
Russell Kingac9d7ef2008-08-18 17:26:00 +01002108source "drivers/cpuidle/Kconfig"
2109
2110endmenu
2111
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112menu "Floating point emulation"
2113
2114comment "At least one emulation must be selected"
2115
2116config FPE_NWFPE
2117 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002118 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119 ---help---
2120 Say Y to include the NWFPE floating point emulator in the kernel.
2121 This is necessary to run most binaries. Linux does not currently
2122 support floating point hardware so you need to say Y here even if
2123 your machine has an FPA or floating point co-processor podule.
2124
2125 You may say N here if you are going to load the Acorn FPEmulator
2126 early in the bootup.
2127
2128config FPE_NWFPE_XP
2129 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002130 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131 help
2132 Say Y to include 80-bit support in the kernel floating-point
2133 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2134 Note that gcc does not generate 80-bit operations by default,
2135 so in most cases this option only enlarges the size of the
2136 floating point emulator without any good reason.
2137
2138 You almost surely want to say N here.
2139
2140config FPE_FASTFPE
2141 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002142 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002143 ---help---
2144 Say Y here to include the FAST floating point emulator in the kernel.
2145 This is an experimental much faster emulator which now also has full
2146 precision for the mantissa. It does not support any exceptions.
2147 It is very simple, and approximately 3-6 times faster than NWFPE.
2148
2149 It should be sufficient for most programs. It may be not suitable
2150 for scientific calculations, but you have to check this for yourself.
2151 If you do not feel you need a faster FP emulation you should better
2152 choose NWFPE.
2153
2154config VFP
2155 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002156 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002157 help
2158 Say Y to include VFP support code in the kernel. This is needed
2159 if your hardware includes a VFP unit.
2160
2161 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2162 release notes and additional status information.
2163
2164 Say N if your target does not have VFP hardware.
2165
Catalin Marinas25ebee02007-09-25 15:22:24 +01002166config VFPv3
2167 bool
2168 depends on VFP
2169 default y if CPU_V7
2170
Catalin Marinasb5872db2008-01-10 19:16:17 +01002171config NEON
2172 bool "Advanced SIMD (NEON) Extension support"
2173 depends on VFPv3 && CPU_V7
2174 help
2175 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2176 Extension.
2177
Linus Torvalds1da177e2005-04-16 15:20:36 -07002178endmenu
2179
2180menu "Userspace binary formats"
2181
2182source "fs/Kconfig.binfmt"
2183
2184config ARTHUR
2185 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002186 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002187 help
2188 Say Y here to include the kernel code necessary if you want to run
2189 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2190 experimental; if this sounds frightening, say N and sleep in peace.
2191 You can also say M here to compile this support as a module (which
2192 will be called arthur).
2193
2194endmenu
2195
2196menu "Power management options"
2197
Russell Kingeceab4a2005-11-15 11:31:41 +00002198source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002199
Johannes Bergf4cb5702007-12-08 02:14:00 +01002200config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002201 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002202 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002203 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002204 def_bool y
2205
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002206config ARM_CPU_SUSPEND
2207 def_bool PM_SLEEP
2208
Linus Torvalds1da177e2005-04-16 15:20:36 -07002209endmenu
2210
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002211source "net/Kconfig"
2212
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002213source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002214
2215source "fs/Kconfig"
2216
Linus Torvalds1da177e2005-04-16 15:20:36 -07002217source "arch/arm/Kconfig.debug"
2218
2219source "security/Kconfig"
2220
2221source "crypto/Kconfig"
2222
2223source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002224
2225source "arch/arm/kvm/Kconfig"