blob: 88b662d4618d3d0a6b7bc85693768e0228fb6f1d [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
Russell Kingb1b3f492012-10-06 17:12:25 +010012 select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
13 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
17 select GENERIC_SMP_IDLE_THREAD
18 select GENERIC_STRNCPY_FROM_USER
19 select GENERIC_STRNLEN_USER
20 select HARDIRQS_SW_RESEND
21 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010022 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060023 select HAVE_ARCH_KGDB
Will Drewry4095ccc2012-11-15 22:12:29 +010024 select HAVE_ARCH_SECCOMP_FILTER
Wade Farnsworth0693bf62012-04-04 16:19:47 +010025 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010026 select HAVE_BPF_JIT
27 select HAVE_C_RECORDMCOUNT
28 select HAVE_DEBUG_KMEMLEAK
29 select HAVE_DMA_API_DEBUG
30 select HAVE_DMA_ATTRS
31 select HAVE_DMA_CONTIGUOUS if MMU
32 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
33 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
34 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
35 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
36 select HAVE_GENERIC_DMA_COHERENT
37 select HAVE_GENERIC_HARDIRQS
38 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
39 select HAVE_IDE if PCI || ISA || PCMCIA
Russell Kingb1b3f492012-10-06 17:12:25 +010040 select HAVE_KERNEL_GZIP
41 select HAVE_KERNEL_LZMA
42 select HAVE_KERNEL_LZO
43 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010044 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080045 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010046 select HAVE_MEMBLOCK
47 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010048 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010049 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070051 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000052 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select PERF_USE_VMALLOC
54 select RTC_LIB
55 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093056 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
57 select MODULES_USE_ELF_REL
Al Viro38a61b62012-10-21 15:54:27 -040058 select CLONE_BACKWARDS
Al Virob68fec22012-12-25 16:29:48 -050059 select OLD_SIGSUSPEND3
Al Viro50bcb7e2012-12-25 19:32:07 -050060 select OLD_SIGACTION
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 help
62 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000063 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000065 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 Europe. There is an ARM Linux project with a web page at
67 <http://www.arm.linux.org.uk/>.
68
Russell King74facff2011-06-02 11:16:22 +010069config ARM_HAS_SG_CHAIN
70 bool
71
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020072config NEED_SG_DMA_LENGTH
73 bool
74
75config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020076 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010077 select ARM_HAS_SG_CHAIN
78 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020079
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090080if ARM_DMA_USE_IOMMU
81
82config ARM_DMA_IOMMU_ALIGNMENT
83 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
84 range 4 9
85 default 8
86 help
87 DMA mapping framework by default aligns all buffers to the smallest
88 PAGE_SIZE order which is greater than or equal to the requested buffer
89 size. This works well for buffers up to a few hundreds kilobytes, but
90 for larger buffers it just a waste of address space. Drivers which has
91 relatively small addressing window (like 64Mib) might run out of
92 virtual space with just a few allocations.
93
94 With this parameter you can specify the maximum PAGE_SIZE order for
95 DMA IOMMU buffers. Larger buffers will be aligned only to this
96 specified order. The order is expressed as a power of two multiplied
97 by the PAGE_SIZE.
98
99endif
100
Russell King1a189b92008-04-13 21:41:55 +0100101config HAVE_PWM
102 bool
103
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100104config MIGHT_HAVE_PCI
105 bool
106
Ralf Baechle75e71532007-02-09 17:08:58 +0000107config SYS_SUPPORTS_APM_EMULATION
108 bool
109
David Brownell0a938b92007-03-05 00:30:18 -0800110config GENERIC_GPIO
111 bool
David Brownell0a938b92007-03-05 00:30:18 -0800112
Linus Walleijbc581772009-09-15 17:30:37 +0100113config HAVE_TCM
114 bool
115 select GENERIC_ALLOCATOR
116
Russell Kinge119bff2010-01-10 17:23:29 +0000117config HAVE_PROC_CPU
118 bool
119
Al Viro5ea81762007-02-11 15:41:31 +0000120config NO_IOPORT
121 bool
Al Viro5ea81762007-02-11 15:41:31 +0000122
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123config EISA
124 bool
125 ---help---
126 The Extended Industry Standard Architecture (EISA) bus was
127 developed as an open alternative to the IBM MicroChannel bus.
128
129 The EISA bus provided some of the features of the IBM MicroChannel
130 bus while maintaining backward compatibility with cards made for
131 the older ISA bus. The EISA bus saw limited use between 1988 and
132 1995 when it was made obsolete by the PCI bus.
133
134 Say Y here if you are building a kernel for an EISA-based machine.
135
136 Otherwise, say N.
137
138config SBUS
139 bool
140
Russell Kingf16fb1e2007-04-28 09:59:37 +0100141config STACKTRACE_SUPPORT
142 bool
143 default y
144
Nicolas Pitref76e9152008-04-24 01:31:46 -0400145config HAVE_LATENCYTOP_SUPPORT
146 bool
147 depends on !SMP
148 default y
149
Russell Kingf16fb1e2007-04-28 09:59:37 +0100150config LOCKDEP_SUPPORT
151 bool
152 default y
153
Russell King7ad1bcb2006-08-27 12:07:02 +0100154config TRACE_IRQFLAGS_SUPPORT
155 bool
156 default y
157
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158config RWSEM_GENERIC_SPINLOCK
159 bool
160 default y
161
162config RWSEM_XCHGADD_ALGORITHM
163 bool
164
David Howellsf0d1b0b2006-12-08 02:37:49 -0800165config ARCH_HAS_ILOG2_U32
166 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800167
168config ARCH_HAS_ILOG2_U64
169 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800170
Ben Dooks89c52ed2009-07-30 23:23:24 +0100171config ARCH_HAS_CPUFREQ
172 bool
173 help
174 Internal node to signify that the ARCH has CPUFREQ support
175 and that the relevant menu configurations are displayed for
176 it.
177
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800178config GENERIC_HWEIGHT
179 bool
180 default y
181
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182config GENERIC_CALIBRATE_DELAY
183 bool
184 default y
185
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100186config ARCH_MAY_HAVE_PC_FDC
187 bool
188
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800189config ZONE_DMA
190 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800191
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800192config NEED_DMA_MAP_STATE
193 def_bool y
194
Rob Herring58af4a22012-03-20 14:33:01 -0500195config ARCH_HAS_DMA_SET_COHERENT_MASK
196 bool
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198config GENERIC_ISA_DMA
199 bool
200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201config FIQ
202 bool
203
Rob Herring13a50452012-02-07 09:28:22 -0600204config NEED_RET_TO_USER
205 bool
206
Al Viro034d2f52005-12-19 16:27:59 -0500207config ARCH_MTD_XIP
208 bool
209
Hyok S. Choic760fc12006-03-27 15:18:50 +0100210config VECTORS_BASE
211 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900212 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100213 default DRAM_BASE if REMAP_VECTORS_TO_RAM
214 default 0x00000000
215 help
216 The base address of exception vectors.
217
Russell Kingdc21af92011-01-04 19:09:43 +0000218config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100219 bool "Patch physical to virtual translations at runtime" if EMBEDDED
220 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100221 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000222 depends on !ARCH_REALVIEW || !SPARSEMEM
223 help
Russell King111e9a52011-05-12 10:02:42 +0100224 Patch phys-to-virt and virt-to-phys translation functions at
225 boot and module load time according to the position of the
226 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000227
Russell King111e9a52011-05-12 10:02:42 +0100228 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100229 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000230
Russell Kingc1beced2011-08-10 10:23:45 +0100231 Only disable this option if you know that you do not require
232 this feature (eg, building a kernel for a single machine) and
233 you need to shrink the kernel to the minimal size.
234
Rob Herring01464222012-08-28 13:06:41 -0500235config NEED_MACH_GPIO_H
236 bool
237 help
238 Select this when mach/gpio.h is required to provide special
239 definitions for this platform. The need for mach/gpio.h should
240 be avoided when possible.
241
Rob Herringc334bc12012-03-04 22:03:33 -0600242config NEED_MACH_IO_H
243 bool
244 help
245 Select this when mach/io.h is required to provide special
246 definitions for this platform. The need for mach/io.h should
247 be avoided when possible.
248
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400249config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400250 bool
Russell King111e9a52011-05-12 10:02:42 +0100251 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400252 Select this when mach/memory.h is required to provide special
253 definitions for this platform. The need for mach/memory.h should
254 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400255
256config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100257 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400258 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100259 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400260 help
261 Please provide the physical address corresponding to the
262 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000263
Simon Glass87e040b2011-08-16 23:44:26 +0100264config GENERIC_BUG
265 def_bool y
266 depends on BUG
267
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268source "init/Kconfig"
269
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700270source "kernel/Kconfig.freezer"
271
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272menu "System Type"
273
Hyok S. Choi3c427972009-07-24 12:35:00 +0100274config MMU
275 bool "MMU-based Paged Memory Management Support"
276 default y
277 help
278 Select if you want MMU-based virtualised addressing space
279 support by paged memory management. If unsure, say 'Y'.
280
Russell Kingccf50e22010-03-15 19:03:06 +0000281#
282# The "ARM system type" choice list is ordered alphabetically by option
283# text. Please add new entries in the option alphabetic order.
284#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285choice
286 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100287 default ARCH_VERSATILE if !MMU
288 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
Rob Herring387798b2012-09-06 13:41:12 -0500290config ARCH_MULTIPLATFORM
291 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100292 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500293 select ARM_PATCH_PHYS_VIRT
294 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600295 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500296 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600297 select SPARSE_IRQ
298 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600299
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100300config ARCH_INTEGRATOR
301 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100302 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100303 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200304 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200305 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100306 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100307 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000308 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100309 select MULTI_IRQ_HANDLER
310 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000311 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100312 select SPARSE_IRQ
Linus Walleij2389d502012-10-31 22:04:31 +0100313 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100314 help
315 Support for ARM's Integrator platform.
316
317config ARCH_REALVIEW
318 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100319 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100320 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100321 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200322 select COMMON_CLK
323 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100324 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100325 select GPIO_PL061 if GPIOLIB
326 select ICST
327 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000328 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000329 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100330 help
331 This enables support for ARM Ltd RealView boards.
332
333config ARCH_VERSATILE
334 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100335 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100337 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100338 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100339 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100340 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900341 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000342 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000343 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000344 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100345 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100346 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100347 help
348 This enables support for ARM Ltd Versatile board.
349
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100350config ARCH_AT91
351 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100352 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100353 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100354 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100355 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500356 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500357 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800358 select PINCTRL
359 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100360 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100361 This enables support for systems based on Atmel
362 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100363
Russell King93e22562012-10-12 14:20:52 +0100364config ARCH_CLPS711X
365 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400366 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400367 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100368 select CLKDEV_LOOKUP
369 select COMMON_CLK
370 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400371 select GENERIC_CLOCKEVENTS
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400372 select MULTI_IRQ_HANDLER
Russell King93e22562012-10-12 14:20:52 +0100373 select NEED_MACH_MEMORY_H
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400374 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100375 help
376 Support for Cirrus Logic 711x/721x/731x based boards.
377
Russell King788c9702009-04-26 14:21:59 +0100378config ARCH_GEMINI
379 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100380 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000381 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100382 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100383 help
384 Support for the Cortina Systems Gemini family SoCs
385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386config ARCH_EBSA110
387 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100388 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000389 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100390 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600391 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400392 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100393 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 help
395 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000396 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 Ethernet interface, two PCMCIA sockets, two serial ports and a
398 parallel port.
399
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000400config ARCH_EP93XX
401 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100402 select ARCH_HAS_HOLES_MEMORYMODEL
403 select ARCH_REQUIRE_GPIOLIB
404 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000405 select ARM_AMBA
406 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100407 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100408 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100409 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000410 help
411 This enables support for the Cirrus EP93xx series of CPUs.
412
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413config ARCH_FOOTBRIDGE
414 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000417 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200418 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600419 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400420 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000421 help
422 Support for systems based on the DC21285 companion chip
423 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100425config ARCH_NETX
426 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100427 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100428 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000429 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100430 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000431 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100432 This enables support for systems based on the Hilscher NetX Soc
433
434config ARCH_H720X
435 bool "Hynix HMS720x-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100436 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000437 select CPU_ARM720T
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100438 select ISA_DMA_API
439 help
440 This enables support for systems based on the Hynix HMS720x
441
Russell King3b938be2007-05-12 11:25:44 +0100442config ARCH_IOP13XX
443 bool "IOP13xx-based"
444 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100445 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100446 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400447 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600448 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100449 select PCI
450 select PLAT_IOP
451 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100452 help
453 Support for Intel's IOP13XX (XScale) family of processors.
454
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100455config ARCH_IOP32X
456 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100457 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100458 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000459 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500460 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600461 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100462 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100463 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000464 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100465 Support for Intel's 80219 and IOP32X (XScale) family of
466 processors.
467
468config ARCH_IOP33X
469 bool "IOP33x-based"
470 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100471 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000472 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500473 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600474 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100475 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100476 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100477 help
478 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479
Russell King3b938be2007-05-12 11:25:44 +0100480config ARCH_IXP4XX
481 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100482 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500483 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100484 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100485 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000486 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100487 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100488 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100489 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600490 select NEED_MACH_IO_H
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100491 help
Russell King3b938be2007-05-12 11:25:44 +0100492 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100493
Saeed Bisharaedabd382009-08-06 15:12:43 +0300494config ARCH_DOVE
495 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300496 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100497 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300498 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100499 select MIGHT_HAVE_PCI
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100500 select PINCTRL
501 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200502 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100503 select USB_ARCH_HAS_EHCI
Saeed Bisharaedabd382009-08-06 15:12:43 +0300504 help
505 Support for the Marvell Dove SoC 88AP510
506
Saeed Bishara651c74c2008-06-22 22:45:06 +0200507config ARCH_KIRKWOOD
508 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700509 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100510 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200511 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100512 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700513 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100514 select PINCTRL
515 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200516 select PLAT_ORION_LEGACY
Saeed Bishara651c74c2008-06-22 22:45:06 +0200517 help
518 Support for the following Marvell Kirkwood series SoCs:
519 88F6180, 88F6192 and 88F6281.
520
Russell King788c9702009-04-26 14:21:59 +0100521config ARCH_MV78XX0
522 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700523 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100524 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100525 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100526 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200527 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100528 help
529 Support for the following Marvell MV78xx0 series SoCs:
530 MV781x0, MV782x0.
531
532config ARCH_ORION5X
533 bool "Marvell Orion"
534 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700535 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100536 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100537 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100538 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200539 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100540 help
541 Support for the following Marvell Orion 5x series SoCs:
542 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
543 Orion-2 (5281), Orion-1-90 (6183).
544
545config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500546 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100547 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100548 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100549 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100550 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100551 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800552 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800553 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100554 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800555 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100556 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400557 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100558 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500559 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100560
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100561config ARCH_KS8695
562 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100563 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200564 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100565 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200566 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100567 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100568 help
569 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
570 System-on-Chip devices.
571
Russell King788c9702009-04-26 14:21:59 +0100572config ARCH_W90X900
573 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100574 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100575 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100576 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100577 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100578 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200579 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100580 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
581 At present, the w90x900 has been renamed nuc900, regarding
582 the ARM series product line, you can login the following
583 link address to know more.
584
585 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
586 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400587
Russell King93e22562012-10-12 14:20:52 +0100588config ARCH_LPC32XX
589 bool "NXP LPC32XX"
590 select ARCH_REQUIRE_GPIOLIB
591 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000592 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100593 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100594 select CPU_ARM926T
595 select GENERIC_CLOCKEVENTS
596 select HAVE_IDE
597 select HAVE_PWM
598 select USB_ARCH_HAS_OHCI
599 select USE_OF
600 help
601 Support for the NXP LPC32XX family of processors
602
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700604 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100605 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100606 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100607 select ARCH_MTD_XIP
608 select ARCH_REQUIRE_GPIOLIB
609 select ARM_CPU_SUSPEND if PM
610 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100611 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100612 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100613 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800614 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100615 select HAVE_IDE
616 select MULTI_IRQ_HANDLER
617 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800618 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800619 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000620 help
eric miao2c8086a2007-09-11 19:13:17 -0700621 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700622
Russell King788c9702009-04-26 14:21:59 +0100623config ARCH_MSM
624 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700625 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800626 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100627 select GENERIC_CLOCKEVENTS
628 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800629 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800630 Support for Qualcomm MSM/QSD based systems. This runs on the
631 apps processor of the MSM/QSD and depends on a shared memory
632 interface to the modem processor which runs the baseband
633 stack and controls some vital subsystems
634 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800635
Magnus Dammc793c1b2010-02-05 11:14:49 +0000636config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900637 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900638 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100639 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800640 select HAVE_ARM_SCU if SMP
641 select HAVE_ARM_TWD if LOCAL_TIMERS
Russell Kingb1b3f492012-10-06 17:12:25 +0100642 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900643 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000644 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000645 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000646 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400647 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100648 select NO_IOPORT
Laurent Pincharta47029c2012-12-15 23:50:56 +0100649 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100650 select PM_GENERIC_DOMAINS if PM
651 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000652 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900653 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000654
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655config ARCH_RPC
656 bool "RiscPC"
657 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100658 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100659 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000660 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100661 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200662 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100663 select HAVE_PATA_PLATFORM
664 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600665 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400666 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100667 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100668 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669 help
670 On the Acorn Risc-PC, Linux can support the internal IDE disk and
671 CD-ROM interface, serial and parallel port, and the floppy drive.
672
673config ARCH_SA1100
674 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100675 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100676 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700677 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100678 select ARCH_SPARSEMEM_ENABLE
679 select CLKDEV_LOOKUP
680 select CLKSRC_MMIO
681 select CPU_FREQ
682 select CPU_SA1100
683 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200684 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100685 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500686 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400687 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100688 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000689 help
690 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700691
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900692config ARCH_S3C24XX
693 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100694 select ARCH_HAS_CPUFREQ
John Stultz5cfc8ee2010-03-24 00:22:36 +0000695 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100696 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100697 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900698 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900699 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100700 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500701 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600702 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900704 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
705 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
706 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
707 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900708
Ben Dooksa08ab632008-10-21 14:06:39 +0100709config ARCH_S3C64XX
710 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100711 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900712 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100713 select ARCH_USES_GETTIMEOFFSET
714 select ARM_VIC
715 select CLKDEV_LOOKUP
716 select CPU_V6
717 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900718 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900719 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100720 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500721 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100722 select NO_IOPORT
723 select PLAT_SAMSUNG
724 select S3C_DEV_NAND
725 select S3C_GPIO_TRACK
726 select SAMSUNG_CLKSRC
727 select SAMSUNG_GPIOLIB_4BIT
728 select SAMSUNG_IRQ_VIC_TIMER
729 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100730 help
731 Samsung S3C64XX series based systems
732
Kukjin Kim49b7a492010-09-07 15:47:18 +0900733config ARCH_S5P64X0
734 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900735 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900736 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100737 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900738 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900740 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100741 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900742 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500743 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900744 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900745 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
746 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900747
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200748config ARCH_S5PC100
749 bool "Samsung S5PC100"
Russell Kingb1b3f492012-10-06 17:12:25 +0100750 select ARCH_USES_GETTIMEOFFSET
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900751 select CLKDEV_LOOKUP
Byungho Min5a7652f2009-06-23 21:39:42 +0900752 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100753 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900754 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900755 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100756 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500757 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900758 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200759 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900760
Kukjin Kim170f4e42010-02-24 16:40:44 +0900761config ARCH_S5PV210
762 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100763 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900764 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100765 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900766 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900767 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100768 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900769 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100770 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900771 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900772 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100773 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500774 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400775 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900776 help
777 Samsung S5PV210/S5PC110 series based systems
778
Kukjin Kim83014572011-11-06 13:54:56 +0900779config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100780 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100781 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900782 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100783 select ARCH_SPARSEMEM_ENABLE
784 select CLKDEV_LOOKUP
785 select CPU_V7
786 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900787 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900788 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900789 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100790 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500791 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400792 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900793 help
Kukjin Kim83014572011-11-06 13:54:56 +0900794 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900795
Linus Torvalds1da177e2005-04-16 15:20:36 -0700796config ARCH_SHARK
797 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100798 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000799 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100800 select ISA
801 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400802 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100803 select PCI
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100804 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100805 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000806 help
807 Support for the StrongARM based Digital DNARD machine, also known
808 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809
Linus Walleijd98aac72009-04-27 10:21:46 +0100810config ARCH_U300
811 bool "ST-Ericsson U300 Series"
812 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100813 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100814 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200815 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100816 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100817 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200819 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100820 select CPU_ARM926T
821 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100822 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200823 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100824 help
825 Support for ST-Ericsson U300 series mobile platforms.
826
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100827config ARCH_DAVINCI
828 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100829 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700830 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100831 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700832 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100833 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100834 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100835 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500836 select NEED_MACH_GPIO_H
Sekhar Nori689e3312012-08-28 15:27:52 +0530837 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100838 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100839 help
840 Support for TI's DaVinci platform.
841
Tony Lindgrena0694862013-01-11 11:24:20 -0800842config ARCH_OMAP1
843 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600844 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100845 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100846 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800847 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100848 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200849 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100850 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100851 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800852 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100853 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800854 select HAVE_IDE
855 select IRQ_DOMAIN
856 select NEED_MACH_IO_H if PCCARD
857 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100858 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800859 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800860
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861endchoice
862
Rob Herring387798b2012-09-06 13:41:12 -0500863menu "Multiple platform selection"
864 depends on ARCH_MULTIPLATFORM
865
866comment "CPU Core family selection"
867
868config ARCH_MULTI_V4
869 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500870 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100871 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500872
873config ARCH_MULTI_V4T
874 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500875 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100876 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500877
878config ARCH_MULTI_V5
879 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500880 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100881 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500882
883config ARCH_MULTI_V4_V5
884 bool
885
886config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800887 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500888 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100889 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500890
891config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800892 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500893 default y
894 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100895 select ARCH_VEXPRESS
896 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500897
898config ARCH_MULTI_V6_V7
899 bool
900
901config ARCH_MULTI_CPU_AUTO
902 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
903 select ARCH_MULTI_V5
904
905endmenu
906
Russell Kingccf50e22010-03-15 19:03:06 +0000907#
908# This is sorted alphabetically by mach-* pathname. However, plat-*
909# Kconfigs may be included either alphabetically (according to the
910# plat- suffix) or along side the corresponding mach-* source.
911#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200912source "arch/arm/mach-mvebu/Kconfig"
913
Russell King95b8f202010-01-14 11:43:54 +0000914source "arch/arm/mach-at91/Kconfig"
915
Christian Daudt8ac49e02012-11-19 09:46:10 -0800916source "arch/arm/mach-bcm/Kconfig"
917
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600918source "arch/arm/mach-bcm2835/Kconfig"
919
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920source "arch/arm/mach-clps711x/Kconfig"
921
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300922source "arch/arm/mach-cns3xxx/Kconfig"
923
Russell King95b8f202010-01-14 11:43:54 +0000924source "arch/arm/mach-davinci/Kconfig"
925
926source "arch/arm/mach-dove/Kconfig"
927
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000928source "arch/arm/mach-ep93xx/Kconfig"
929
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930source "arch/arm/mach-footbridge/Kconfig"
931
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200932source "arch/arm/mach-gemini/Kconfig"
933
Russell King95b8f202010-01-14 11:43:54 +0000934source "arch/arm/mach-h720x/Kconfig"
935
Rob Herring387798b2012-09-06 13:41:12 -0500936source "arch/arm/mach-highbank/Kconfig"
937
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938source "arch/arm/mach-integrator/Kconfig"
939
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100940source "arch/arm/mach-iop32x/Kconfig"
941
942source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943
Dan Williams285f5fa2006-12-07 02:59:39 +0100944source "arch/arm/mach-iop13xx/Kconfig"
945
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946source "arch/arm/mach-ixp4xx/Kconfig"
947
Russell King95b8f202010-01-14 11:43:54 +0000948source "arch/arm/mach-kirkwood/Kconfig"
949
950source "arch/arm/mach-ks8695/Kconfig"
951
Russell King95b8f202010-01-14 11:43:54 +0000952source "arch/arm/mach-msm/Kconfig"
953
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200954source "arch/arm/mach-mv78xx0/Kconfig"
955
Shawn Guo3995eb82012-09-13 19:48:07 +0800956source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800958source "arch/arm/mach-mxs/Kconfig"
959
Russell King95b8f202010-01-14 11:43:54 +0000960source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800961
Russell King95b8f202010-01-14 11:43:54 +0000962source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000963
Tony Lindgrend48af152005-07-10 19:58:17 +0100964source "arch/arm/plat-omap/Kconfig"
965
966source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700967
Tony Lindgren1dbae812005-11-10 14:26:51 +0000968source "arch/arm/mach-omap2/Kconfig"
969
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400970source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400971
Rob Herring387798b2012-09-06 13:41:12 -0500972source "arch/arm/mach-picoxcell/Kconfig"
973
Russell King95b8f202010-01-14 11:43:54 +0000974source "arch/arm/mach-pxa/Kconfig"
975source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976
Russell King95b8f202010-01-14 11:43:54 +0000977source "arch/arm/mach-mmp/Kconfig"
978
979source "arch/arm/mach-realview/Kconfig"
980
981source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300982
Ben Dookscf383672009-11-10 00:14:58 +0000983source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100984
Rob Herring387798b2012-09-06 13:41:12 -0500985source "arch/arm/mach-socfpga/Kconfig"
986
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100987source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100988
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900989source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990
Ben Dooksa08ab632008-10-21 14:06:39 +0100991if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900992source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100993endif
994
Kukjin Kim49b7a492010-09-07 15:47:18 +0900995source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900996
Byungho Min5a7652f2009-06-23 21:39:42 +0900997source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900998
Kukjin Kim170f4e42010-02-24 16:40:44 +0900999source "arch/arm/mach-s5pv210/Kconfig"
1000
Kukjin Kim83014572011-11-06 13:54:56 +09001001source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001002
Russell King882d01f2010-03-02 23:40:15 +00001003source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
Maxime Ripard3b526342012-11-08 12:40:16 +01001005source "arch/arm/mach-sunxi/Kconfig"
1006
Barry Song156a0992012-08-23 13:41:58 +08001007source "arch/arm/mach-prima2/Kconfig"
1008
Erik Gillingc5f80062010-01-21 16:53:02 -08001009source "arch/arm/mach-tegra/Kconfig"
1010
Russell King95b8f202010-01-14 11:43:54 +00001011source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001012
Russell King95b8f202010-01-14 11:43:54 +00001013source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014
1015source "arch/arm/mach-versatile/Kconfig"
1016
Russell Kingceade892010-02-11 21:44:53 +00001017source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001018source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001019
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001020source "arch/arm/mach-virt/Kconfig"
1021
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001022source "arch/arm/mach-vt8500/Kconfig"
1023
wanzongshun7ec80dd2008-12-03 03:55:38 +01001024source "arch/arm/mach-w90x900/Kconfig"
1025
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001026source "arch/arm/mach-zynq/Kconfig"
1027
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028# Definitions to make life easier
1029config ARCH_ACORN
1030 bool
1031
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001032config PLAT_IOP
1033 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001034 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001035
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001036config PLAT_ORION
1037 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001038 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001039 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001040 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001041 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001042
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001043config PLAT_ORION_LEGACY
1044 bool
1045 select PLAT_ORION
1046
Eric Miaobd5ce432009-01-20 12:06:01 +08001047config PLAT_PXA
1048 bool
1049
Russell Kingf4b8b312010-01-14 12:48:06 +00001050config PLAT_VERSATILE
1051 bool
1052
Russell Kinge3887712010-01-14 13:30:16 +00001053config ARM_TIMER_SP804
1054 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001055 select CLKSRC_MMIO
Rob Herringa7bf6162011-12-12 15:29:08 -06001056 select HAVE_SCHED_CLOCK
Russell Kinge3887712010-01-14 13:30:16 +00001057
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058source arch/arm/mm/Kconfig
1059
Russell King958cab02011-12-11 10:04:00 +00001060config ARM_NR_BANKS
1061 int
1062 default 16 if ARCH_EP93XX
1063 default 8
1064
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001065config IWMMXT
1066 bool "Enable iWMMXt support"
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001067 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Haojian Zhuang49ea7fc2012-11-15 17:06:06 +08001068 default y if PXA27x || PXA3xx || ARCH_MMP
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001069 help
1070 Enable support for iWMMXt context switching at run time if
1071 running on a CPU that supports it.
1072
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073config XSCALE_PMU
1074 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001075 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 default y
1077
eric miao52108642010-12-13 09:42:34 +01001078config MULTI_IRQ_HANDLER
1079 bool
1080 help
1081 Allow each machine to specify it's own IRQ handler at run time.
1082
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001083if !MMU
1084source "arch/arm/Kconfig-nommu"
1085endif
1086
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001087config ARM_ERRATA_326103
1088 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1089 depends on CPU_V6
1090 help
1091 Executing a SWP instruction to read-only memory does not set bit 11
1092 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1093 treat the access as a read, preventing a COW from occurring and
1094 causing the faulting task to livelock.
1095
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001096config ARM_ERRATA_411920
1097 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001098 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001099 help
1100 Invalidation of the Instruction Cache operation can
1101 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1102 It does not affect the MPCore. This option enables the ARM Ltd.
1103 recommended workaround.
1104
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001105config ARM_ERRATA_430973
1106 bool "ARM errata: Stale prediction on replaced interworking branch"
1107 depends on CPU_V7
1108 help
1109 This option enables the workaround for the 430973 Cortex-A8
1110 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1111 interworking branch is replaced with another code sequence at the
1112 same virtual address, whether due to self-modifying code or virtual
1113 to physical address re-mapping, Cortex-A8 does not recover from the
1114 stale interworking branch prediction. This results in Cortex-A8
1115 executing the new code sequence in the incorrect ARM or Thumb state.
1116 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1117 and also flushes the branch target cache at every context switch.
1118 Note that setting specific bits in the ACTLR register may not be
1119 available in non-secure mode.
1120
Catalin Marinas855c5512009-04-30 17:06:15 +01001121config ARM_ERRATA_458693
1122 bool "ARM errata: Processor deadlock when a false hazard is created"
1123 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001124 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001125 help
1126 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1127 erratum. For very specific sequences of memory operations, it is
1128 possible for a hazard condition intended for a cache line to instead
1129 be incorrectly associated with a different cache line. This false
1130 hazard might then cause a processor deadlock. The workaround enables
1131 the L1 caching of the NEON accesses and disables the PLD instruction
1132 in the ACTLR register. Note that setting specific bits in the ACTLR
1133 register may not be available in non-secure mode.
1134
Catalin Marinas0516e462009-04-30 17:06:20 +01001135config ARM_ERRATA_460075
1136 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1137 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001138 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001139 help
1140 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1141 erratum. Any asynchronous access to the L2 cache may encounter a
1142 situation in which recent store transactions to the L2 cache are lost
1143 and overwritten with stale memory contents from external memory. The
1144 workaround disables the write-allocate mode for the L2 cache via the
1145 ACTLR register. Note that setting specific bits in the ACTLR register
1146 may not be available in non-secure mode.
1147
Will Deacon9f050272010-09-14 09:51:43 +01001148config ARM_ERRATA_742230
1149 bool "ARM errata: DMB operation may be faulty"
1150 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001151 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001152 help
1153 This option enables the workaround for the 742230 Cortex-A9
1154 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1155 between two write operations may not ensure the correct visibility
1156 ordering of the two writes. This workaround sets a specific bit in
1157 the diagnostic register of the Cortex-A9 which causes the DMB
1158 instruction to behave as a DSB, ensuring the correct behaviour of
1159 the two writes.
1160
Will Deacona672e992010-09-14 09:53:02 +01001161config ARM_ERRATA_742231
1162 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1163 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001164 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001165 help
1166 This option enables the workaround for the 742231 Cortex-A9
1167 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1168 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1169 accessing some data located in the same cache line, may get corrupted
1170 data due to bad handling of the address hazard when the line gets
1171 replaced from one of the CPUs at the same time as another CPU is
1172 accessing it. This workaround sets specific bits in the diagnostic
1173 register of the Cortex-A9 which reduces the linefill issuing
1174 capabilities of the processor.
1175
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001176config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001177 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001178 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001179 help
1180 The PL310 L2 cache controller implements three types of Clean &
1181 Invalidate maintenance operations: by Physical Address
1182 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1183 They are architecturally defined to behave as the execution of a
1184 clean operation followed immediately by an invalidate operation,
1185 both performing to the same memory location. This functionality
1186 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001187 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001188
1189config ARM_ERRATA_720789
1190 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001191 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001192 help
1193 This option enables the workaround for the 720789 Cortex-A9 (prior to
1194 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1195 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1196 As a consequence of this erratum, some TLB entries which should be
1197 invalidated are not, resulting in an incoherency in the system page
1198 tables. The workaround changes the TLB flushing routines to invalidate
1199 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001200
Russell King1f0090a2011-03-16 23:35:25 +00001201config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001202 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001203 depends on CACHE_L2X0
1204 help
1205 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1206 operation (offset 0x7FC). This operation runs in background so that
1207 PL310 can handle normal accesses while it is in progress. Under very
1208 rare circumstances, due to this erratum, write data can be lost when
1209 PL310 treats a cacheable write transaction during a Clean &
1210 Invalidate by Way operation.
1211
Will Deacon475d92f2010-09-28 14:02:02 +01001212config ARM_ERRATA_743622
1213 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1214 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001215 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001216 help
1217 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001218 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001219 optimisation in the Cortex-A9 Store Buffer may lead to data
1220 corruption. This workaround sets a specific bit in the diagnostic
1221 register of the Cortex-A9 which disables the Store Buffer
1222 optimisation, preventing the defect from occurring. This has no
1223 visible impact on the overall performance or power consumption of the
1224 processor.
1225
Will Deacon9a27c272011-02-18 16:36:35 +01001226config ARM_ERRATA_751472
1227 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001228 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001229 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001230 help
1231 This option enables the workaround for the 751472 Cortex-A9 (prior
1232 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1233 completion of a following broadcasted operation if the second
1234 operation is received by a CPU before the ICIALLUIS has completed,
1235 potentially leading to corrupted entries in the cache or TLB.
1236
Will Deaconfa0ce402011-11-14 17:24:57 +01001237config PL310_ERRATA_753970
1238 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001239 depends on CACHE_PL310
1240 help
1241 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1242
1243 Under some condition the effect of cache sync operation on
1244 the store buffer still remains when the operation completes.
1245 This means that the store buffer is always asked to drain and
1246 this prevents it from merging any further writes. The workaround
1247 is to replace the normal offset of cache sync operation (0x730)
1248 by another offset targeting an unmapped PL310 register 0x740.
1249 This has the same effect as the cache sync operation: store buffer
1250 drain and waiting for all buffers empty.
1251
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001252config ARM_ERRATA_754322
1253 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1254 depends on CPU_V7
1255 help
1256 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1257 r3p*) erratum. A speculative memory access may cause a page table walk
1258 which starts prior to an ASID switch but completes afterwards. This
1259 can populate the micro-TLB with a stale entry which may be hit with
1260 the new ASID. This workaround places two dsb instructions in the mm
1261 switching code so that no page table walks can cross the ASID switch.
1262
Will Deacon5dab26af2011-03-04 12:38:54 +01001263config ARM_ERRATA_754327
1264 bool "ARM errata: no automatic Store Buffer drain"
1265 depends on CPU_V7 && SMP
1266 help
1267 This option enables the workaround for the 754327 Cortex-A9 (prior to
1268 r2p0) erratum. The Store Buffer does not have any automatic draining
1269 mechanism and therefore a livelock may occur if an external agent
1270 continuously polls a memory location waiting to observe an update.
1271 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1272 written polling loops from denying visibility of updates to memory.
1273
Catalin Marinas145e10e2011-08-15 11:04:41 +01001274config ARM_ERRATA_364296
1275 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1276 depends on CPU_V6 && !SMP
1277 help
1278 This options enables the workaround for the 364296 ARM1136
1279 r0p2 erratum (possible cache data corruption with
1280 hit-under-miss enabled). It sets the undocumented bit 31 in
1281 the auxiliary control register and the FI bit in the control
1282 register, thus disabling hit-under-miss without putting the
1283 processor into full low interrupt latency mode. ARM11MPCore
1284 is not affected.
1285
Will Deaconf630c1b2011-09-15 11:45:15 +01001286config ARM_ERRATA_764369
1287 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1288 depends on CPU_V7 && SMP
1289 help
1290 This option enables the workaround for erratum 764369
1291 affecting Cortex-A9 MPCore with two or more processors (all
1292 current revisions). Under certain timing circumstances, a data
1293 cache line maintenance operation by MVA targeting an Inner
1294 Shareable memory region may fail to proceed up to either the
1295 Point of Coherency or to the Point of Unification of the
1296 system. This workaround adds a DSB instruction before the
1297 relevant cache maintenance functions and sets a specific bit
1298 in the diagnostic control register of the SCU.
1299
Will Deacon11ed0ba2011-11-14 17:24:58 +01001300config PL310_ERRATA_769419
1301 bool "PL310 errata: no automatic Store Buffer drain"
1302 depends on CACHE_L2X0
1303 help
1304 On revisions of the PL310 prior to r3p2, the Store Buffer does
1305 not automatically drain. This can cause normal, non-cacheable
1306 writes to be retained when the memory system is idle, leading
1307 to suboptimal I/O performance for drivers using coherent DMA.
1308 This option adds a write barrier to the cpu_idle loop so that,
1309 on systems with an outer cache, the store buffer is drained
1310 explicitly.
1311
Simon Horman7253b852012-09-28 02:12:45 +01001312config ARM_ERRATA_775420
1313 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1314 depends on CPU_V7
1315 help
1316 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1317 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1318 operation aborts with MMU exception, it might cause the processor
1319 to deadlock. This workaround puts DSB before executing ISB if
1320 an abort may occur on cache maintenance.
1321
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322endmenu
1323
1324source "arch/arm/common/Kconfig"
1325
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326menu "Bus support"
1327
1328config ARM_AMBA
1329 bool
1330
1331config ISA
1332 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333 help
1334 Find out whether you have ISA slots on your motherboard. ISA is the
1335 name of a bus system, i.e. the way the CPU talks to the other stuff
1336 inside your box. Other bus systems are PCI, EISA, MicroChannel
1337 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1338 newer boards don't support it. If you have ISA, say Y, otherwise N.
1339
Russell King065909b2006-01-04 15:44:16 +00001340# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341config ISA_DMA
1342 bool
Russell King065909b2006-01-04 15:44:16 +00001343 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344
Russell King065909b2006-01-04 15:44:16 +00001345# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001346config ISA_DMA_API
1347 bool
Al Viro5cae8412005-05-04 05:39:22 +01001348
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001350 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001351 help
1352 Find out whether you have a PCI motherboard. PCI is the name of a
1353 bus system, i.e. the way the CPU talks to the other stuff inside
1354 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1355 VESA. If you have PCI, say Y, otherwise N.
1356
Anton Vorontsov52882172010-04-19 13:20:49 +01001357config PCI_DOMAINS
1358 bool
1359 depends on PCI
1360
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001361config PCI_NANOENGINE
1362 bool "BSE nanoEngine PCI support"
1363 depends on SA1100_NANOENGINE
1364 help
1365 Enable PCI on the BSE nanoEngine board.
1366
Matthew Wilcox36e23592007-07-10 10:54:40 -06001367config PCI_SYSCALL
1368 def_bool PCI
1369
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370# Select the host bridge type
1371config PCI_HOST_VIA82C505
1372 bool
1373 depends on PCI && ARCH_SHARK
1374 default y
1375
Mike Rapoporta0113a92007-11-25 08:55:34 +01001376config PCI_HOST_ITE8152
1377 bool
1378 depends on PCI && MACH_ARMCORE
1379 default y
1380 select DMABOUNCE
1381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382source "drivers/pci/Kconfig"
1383
1384source "drivers/pcmcia/Kconfig"
1385
1386endmenu
1387
1388menu "Kernel Features"
1389
Dave Martin3b556582011-12-07 15:38:04 +00001390config HAVE_SMP
1391 bool
1392 help
1393 This option should be selected by machines which have an SMP-
1394 capable CPU.
1395
1396 The only effect of this option is to make the SMP-related
1397 options available to the user for configuration.
1398
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001400 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001401 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001402 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001403 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001404 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +01001405 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001406 help
1407 This enables support for systems with more than one CPU. If you have
1408 a system with only one CPU, like most personal computers, say N. If
1409 you have a system with more than one CPU, say Y.
1410
1411 If you say N here, the kernel will run on single and multiprocessor
1412 machines, but will use only one CPU of a multiprocessor machine. If
1413 you say Y here, the kernel will run on many, but not all, single
1414 processor machines. On a single processor machine, the kernel will
1415 run faster if you say N here.
1416
Paul Bolle395cf962011-08-15 02:02:26 +02001417 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001419 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420
1421 If you don't know what to do here, say N.
1422
Russell Kingf00ec482010-09-04 10:47:48 +01001423config SMP_ON_UP
1424 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001425 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001426 default y
1427 help
1428 SMP kernels contain instructions which fail on non-SMP processors.
1429 Enabling this option allows the kernel to modify itself to make
1430 these instructions safe. Disabling it allows about 1K of space
1431 savings.
1432
1433 If you don't know what to do here, say Y.
1434
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001435config ARM_CPU_TOPOLOGY
1436 bool "Support cpu topology definition"
1437 depends on SMP && CPU_V7
1438 default y
1439 help
1440 Support ARM cpu topology definition. The MPIDR register defines
1441 affinity between processors which is then used to describe the cpu
1442 topology of an ARM System.
1443
1444config SCHED_MC
1445 bool "Multi-core scheduler support"
1446 depends on ARM_CPU_TOPOLOGY
1447 help
1448 Multi-core scheduler support improves the CPU scheduler's decision
1449 making when dealing with multi-core CPU chips at a cost of slightly
1450 increased overhead in some places. If unsure say N here.
1451
1452config SCHED_SMT
1453 bool "SMT scheduler support"
1454 depends on ARM_CPU_TOPOLOGY
1455 help
1456 Improves the CPU scheduler's decision making when dealing with
1457 MultiThreading at a cost of slightly increased overhead in some
1458 places. If unsure say N here.
1459
Russell Kinga8cbcd92009-05-16 11:51:14 +01001460config HAVE_ARM_SCU
1461 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001462 help
1463 This option enables support for the ARM system coherency unit
1464
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001465config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001466 bool "Architected timer support"
1467 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001468 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001469 help
1470 This option enables support for the ARM architected timer
1471
Russell Kingf32f4ce2009-05-16 12:14:21 +01001472config HAVE_ARM_TWD
1473 bool
1474 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001475 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001476 help
1477 This options enables support for the ARM timer and watchdog unit
1478
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001479choice
1480 prompt "Memory split"
1481 default VMSPLIT_3G
1482 help
1483 Select the desired split between kernel and user memory.
1484
1485 If you are not absolutely sure what you are doing, leave this
1486 option alone!
1487
1488 config VMSPLIT_3G
1489 bool "3G/1G user/kernel split"
1490 config VMSPLIT_2G
1491 bool "2G/2G user/kernel split"
1492 config VMSPLIT_1G
1493 bool "1G/3G user/kernel split"
1494endchoice
1495
1496config PAGE_OFFSET
1497 hex
1498 default 0x40000000 if VMSPLIT_1G
1499 default 0x80000000 if VMSPLIT_2G
1500 default 0xC0000000
1501
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502config NR_CPUS
1503 int "Maximum number of CPUs (2-32)"
1504 range 2 32
1505 depends on SMP
1506 default "4"
1507
Russell Kinga054a812005-11-02 22:24:33 +00001508config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001509 bool "Support for hot-pluggable CPUs"
1510 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001511 help
1512 Say Y here to experiment with turning CPUs off and on. CPUs
1513 can be controlled through /sys/devices/system/cpu.
1514
Will Deacon2bdd4242012-12-12 19:20:52 +00001515config ARM_PSCI
1516 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1517 depends on CPU_V7
1518 help
1519 Say Y here if you want Linux to communicate with system firmware
1520 implementing the PSCI specification for CPU-centric power
1521 management operations described in ARM document number ARM DEN
1522 0022A ("Power State Coordination Interface System Software on
1523 ARM processors").
1524
Russell King37ee16a2005-11-08 19:08:05 +00001525config LOCAL_TIMERS
1526 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001527 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001528 default y
1529 help
1530 Enable support for local timers on SMP platforms, rather then the
1531 legacy IPI broadcast method. Local timers allows the system
1532 accounting to be spread across the timer interval, preventing a
1533 "thundering herd" at every timer tick.
1534
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001535# The GPIO number here must be sorted by descending number. In case of
1536# a multiplatform kernel, we just want the highest value required by the
1537# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001538config ARCH_NR_GPIO
1539 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001540 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301541 default 512 if SOC_OMAP5
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001542 default 355 if ARCH_U8500
Maxime Riparde590b912013-01-26 15:36:51 +01001543 default 288 if ARCH_VT8500 || ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001544 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001545 default 0
1546 help
1547 Maximum number of GPIOs in the system.
1548
1549 If unsure, leave the default value.
1550
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001551source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552
Russell Kingf8065812006-03-02 22:41:59 +00001553config HZ
1554 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001555 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001556 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001557 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001558 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001559 default 100
1560
Russell Kingb28748f2013-02-17 14:40:33 +00001561config SCHED_HRTICK
1562 def_bool HIGH_RES_TIMERS
1563
Catalin Marinas16c79652009-07-24 12:33:02 +01001564config THUMB2_KERNEL
Russell King00b7ded2012-10-22 22:54:30 +01001565 bool "Compile the kernel in Thumb-2 mode"
1566 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Catalin Marinas16c79652009-07-24 12:33:02 +01001567 select AEABI
1568 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001569 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001570 help
1571 By enabling this option, the kernel will be compiled in
1572 Thumb-2 mode. A compiler/assembler that understand the unified
1573 ARM-Thumb syntax is needed.
1574
1575 If unsure, say N.
1576
Dave Martin6f685c52011-03-03 11:41:12 +01001577config THUMB2_AVOID_R_ARM_THM_JUMP11
1578 bool "Work around buggy Thumb-2 short branch relocations in gas"
1579 depends on THUMB2_KERNEL && MODULES
1580 default y
1581 help
1582 Various binutils versions can resolve Thumb-2 branches to
1583 locally-defined, preemptible global symbols as short-range "b.n"
1584 branch instructions.
1585
1586 This is a problem, because there's no guarantee the final
1587 destination of the symbol, or any candidate locations for a
1588 trampoline, are within range of the branch. For this reason, the
1589 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1590 relocation in modules at all, and it makes little sense to add
1591 support.
1592
1593 The symptom is that the kernel fails with an "unsupported
1594 relocation" error when loading some modules.
1595
1596 Until fixed tools are available, passing
1597 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1598 code which hits this problem, at the cost of a bit of extra runtime
1599 stack usage in some cases.
1600
1601 The problem is described in more detail at:
1602 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1603
1604 Only Thumb-2 kernels are affected.
1605
1606 Unless you are sure your tools don't have this problem, say Y.
1607
Catalin Marinas0becb082009-07-24 12:32:53 +01001608config ARM_ASM_UNIFIED
1609 bool
1610
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001611config AEABI
1612 bool "Use the ARM EABI to compile the kernel"
1613 help
1614 This option allows for the kernel to be compiled using the latest
1615 ARM ABI (aka EABI). This is only useful if you are using a user
1616 space environment that is also compiled with EABI.
1617
1618 Since there are major incompatibilities between the legacy ABI and
1619 EABI, especially with regard to structure member alignment, this
1620 option also changes the kernel syscall calling convention to
1621 disambiguate both ABIs and allow for backward compatibility support
1622 (selected with CONFIG_OABI_COMPAT).
1623
1624 To use this you need GCC version 4.0.0 or later.
1625
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001626config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001627 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001628 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001629 default y
1630 help
1631 This option preserves the old syscall interface along with the
1632 new (ARM EABI) one. It also provides a compatibility layer to
1633 intercept syscalls that have structure arguments which layout
1634 in memory differs between the legacy ABI and the new ARM EABI
1635 (only for non "thumb" binaries). This option adds a tiny
1636 overhead to all syscalls and produces a slightly larger kernel.
1637 If you know you'll be using only pure EABI user space then you
1638 can say N here. If this option is not selected and you attempt
1639 to execute a legacy ABI binary then the result will be
1640 UNPREDICTABLE (in fact it can be predicted that it won't work
1641 at all). If in doubt say Y.
1642
Mel Gormaneb335752009-05-13 17:34:48 +01001643config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001644 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001645
Russell King05944d72006-11-30 20:43:51 +00001646config ARCH_SPARSEMEM_ENABLE
1647 bool
1648
Russell King07a2f732008-10-01 21:39:58 +01001649config ARCH_SPARSEMEM_DEFAULT
1650 def_bool ARCH_SPARSEMEM_ENABLE
1651
Russell King05944d72006-11-30 20:43:51 +00001652config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001653 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001654
Will Deacon7b7bf492011-05-19 13:21:14 +01001655config HAVE_ARCH_PFN_VALID
1656 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1657
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001658config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001659 bool "High Memory Support"
1660 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001661 help
1662 The address space of ARM processors is only 4 Gigabytes large
1663 and it has to accommodate user address space, kernel address
1664 space as well as some memory mapped IO. That means that, if you
1665 have a large amount of physical memory and/or IO, not all of the
1666 memory can be "permanently mapped" by the kernel. The physical
1667 memory that is not permanently mapped is called "high memory".
1668
1669 Depending on the selected kernel/user memory split, minimum
1670 vmalloc space and actual amount of RAM, you may not need this
1671 option which should result in a slightly faster kernel.
1672
1673 If unsure, say n.
1674
Russell King65cec8e2009-08-17 20:02:06 +01001675config HIGHPTE
1676 bool "Allocate 2nd-level pagetables from highmem"
1677 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001678
Jamie Iles1b8873a2010-02-02 20:25:44 +01001679config HW_PERF_EVENTS
1680 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001681 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001682 default y
1683 help
1684 Enable hardware performance counter support for perf events. If
1685 disabled, perf events will use software events only.
1686
Dave Hansen3f22ab22005-06-23 00:07:43 -07001687source "mm/Kconfig"
1688
Magnus Dammc1b2d972010-07-05 10:00:11 +01001689config FORCE_MAX_ZONEORDER
1690 int "Maximum zone order" if ARCH_SHMOBILE
1691 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001692 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001693 default "9" if SA1111
1694 default "11"
1695 help
1696 The kernel memory allocator divides physically contiguous memory
1697 blocks into "zones", where each zone is a power of two number of
1698 pages. This option selects the largest power of two that the kernel
1699 keeps in the memory allocator. If you need to allocate very large
1700 blocks of physically contiguous memory, then you may need to
1701 increase this value.
1702
1703 This config option is actually maximum order plus one. For example,
1704 a value of 11 means that the largest free memory block is 2^10 pages.
1705
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706config ALIGNMENT_TRAP
1707 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001708 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001710 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001712 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1714 address divisible by 4. On 32-bit ARM processors, these non-aligned
1715 fetch/store instructions will be emulated in software if you say
1716 here, which has a severe performance impact. This is necessary for
1717 correct operation of some network protocols. With an IP-only
1718 configuration it is safe to say N, otherwise say Y.
1719
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001720config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001721 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1722 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001723 default y if CPU_FEROCEON
1724 help
1725 Implement faster copy_to_user and clear_user methods for CPU
1726 cores where a 8-word STM instruction give significantly higher
1727 memory write throughput than a sequence of individual 32bit stores.
1728
1729 A possible side effect is a slight increase in scheduling latency
1730 between threads sharing the same address space if they invoke
1731 such copy operations with large buffers.
1732
1733 However, if the CPU data cache is using a write-allocate mode,
1734 this option is unlikely to provide any performance gain.
1735
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001736config SECCOMP
1737 bool
1738 prompt "Enable seccomp to safely compute untrusted bytecode"
1739 ---help---
1740 This kernel feature is useful for number crunching applications
1741 that may need to compute untrusted bytecode during their
1742 execution. By using pipes or other transports made available to
1743 the process as file descriptors supporting the read/write
1744 syscalls, it's possible to isolate those applications in
1745 their own address space using seccomp. Once seccomp is
1746 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1747 and the task is only allowed to execute a few safe syscalls
1748 defined by each seccomp mode.
1749
Nicolas Pitrec743f382010-05-24 23:55:42 -04001750config CC_STACKPROTECTOR
1751 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1752 help
1753 This option turns on the -fstack-protector GCC feature. This
1754 feature puts, at the beginning of functions, a canary value on
1755 the stack just before the return address, and validates
1756 the value just before actually returning. Stack based buffer
1757 overflows (that need to overwrite this return address) now also
1758 overwrite the canary, which gets detected and the attack is then
1759 neutralized via a kernel panic.
1760 This feature requires gcc version 4.2 or above.
1761
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001762config XEN_DOM0
1763 def_bool y
1764 depends on XEN
1765
1766config XEN
1767 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001768 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001769 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001770 depends on !GENERIC_ATOMIC64
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001771 help
1772 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1773
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774endmenu
1775
1776menu "Boot options"
1777
Grant Likely9eb8f672011-04-28 14:27:20 -06001778config USE_OF
1779 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001780 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001781 select OF
1782 select OF_EARLY_FLATTREE
1783 help
1784 Include support for flattened device tree machine descriptions.
1785
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001786config ATAGS
1787 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1788 default y
1789 help
1790 This is the traditional way of passing data to the kernel at boot
1791 time. If you are solely relying on the flattened device tree (or
1792 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1793 to remove ATAGS support from your kernel binary. If unsure,
1794 leave this to y.
1795
1796config DEPRECATED_PARAM_STRUCT
1797 bool "Provide old way to pass kernel parameters"
1798 depends on ATAGS
1799 help
1800 This was deprecated in 2001 and announced to live on for 5 years.
1801 Some old boot loaders still use this way.
1802
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803# Compressed boot loader in ROM. Yes, we really want to ask about
1804# TEXT and BSS so we preserve their values in the config files.
1805config ZBOOT_ROM_TEXT
1806 hex "Compressed ROM boot loader base address"
1807 default "0"
1808 help
1809 The physical address at which the ROM-able zImage is to be
1810 placed in the target. Platforms which normally make use of
1811 ROM-able zImage formats normally set this to a suitable
1812 value in their defconfig file.
1813
1814 If ZBOOT_ROM is not enabled, this has no effect.
1815
1816config ZBOOT_ROM_BSS
1817 hex "Compressed ROM boot loader BSS address"
1818 default "0"
1819 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001820 The base address of an area of read/write memory in the target
1821 for the ROM-able zImage which must be available while the
1822 decompressor is running. It must be large enough to hold the
1823 entire decompressed kernel plus an additional 128 KiB.
1824 Platforms which normally make use of ROM-able zImage formats
1825 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826
1827 If ZBOOT_ROM is not enabled, this has no effect.
1828
1829config ZBOOT_ROM
1830 bool "Compressed boot loader in ROM/flash"
1831 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1832 help
1833 Say Y here if you intend to execute your compressed kernel image
1834 (zImage) directly from ROM or flash. If unsure, say N.
1835
Simon Horman090ab3f2011-04-26 06:29:53 +01001836choice
1837 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001838 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001839 default ZBOOT_ROM_NONE
1840 help
1841 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001842 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001843 kernel image to an MMC or SD card and boot the kernel straight
1844 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001845 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001846 rest the kernel image to RAM.
1847
1848config ZBOOT_ROM_NONE
1849 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1850 help
1851 Do not load image from SD or MMC
1852
Simon Hormanf45b1142011-01-11 04:01:08 +01001853config ZBOOT_ROM_MMCIF
1854 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001855 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001856 Load image from MMCIF hardware block.
1857
1858config ZBOOT_ROM_SH_MOBILE_SDHI
1859 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1860 help
1861 Load image from SDHI hardware block
1862
1863endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001864
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001865config ARM_APPENDED_DTB
1866 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001867 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001868 help
1869 With this option, the boot code will look for a device tree binary
1870 (DTB) appended to zImage
1871 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1872
1873 This is meant as a backward compatibility convenience for those
1874 systems with a bootloader that can't be upgraded to accommodate
1875 the documented boot protocol using a device tree.
1876
1877 Beware that there is very little in terms of protection against
1878 this option being confused by leftover garbage in memory that might
1879 look like a DTB header after a reboot if no actual DTB is appended
1880 to zImage. Do not leave this option active in a production kernel
1881 if you don't intend to always append a DTB. Proper passing of the
1882 location into r2 of a bootloader provided DTB is always preferable
1883 to this option.
1884
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001885config ARM_ATAG_DTB_COMPAT
1886 bool "Supplement the appended DTB with traditional ATAG information"
1887 depends on ARM_APPENDED_DTB
1888 help
1889 Some old bootloaders can't be updated to a DTB capable one, yet
1890 they provide ATAGs with memory configuration, the ramdisk address,
1891 the kernel cmdline string, etc. Such information is dynamically
1892 provided by the bootloader and can't always be stored in a static
1893 DTB. To allow a device tree enabled kernel to be used with such
1894 bootloaders, this option allows zImage to extract the information
1895 from the ATAG list and store it at run time into the appended DTB.
1896
Genoud Richardd0f34a112012-06-26 16:37:59 +01001897choice
1898 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1899 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1900
1901config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1902 bool "Use bootloader kernel arguments if available"
1903 help
1904 Uses the command-line options passed by the boot loader instead of
1905 the device tree bootargs property. If the boot loader doesn't provide
1906 any, the device tree bootargs property will be used.
1907
1908config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1909 bool "Extend with bootloader kernel arguments"
1910 help
1911 The command-line arguments provided by the boot loader will be
1912 appended to the the device tree bootargs property.
1913
1914endchoice
1915
Linus Torvalds1da177e2005-04-16 15:20:36 -07001916config CMDLINE
1917 string "Default kernel command string"
1918 default ""
1919 help
1920 On some architectures (EBSA110 and CATS), there is currently no way
1921 for the boot loader to pass arguments to the kernel. For these
1922 architectures, you should supply some command-line options at build
1923 time by entering them here. As a minimum, you should specify the
1924 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1925
Victor Boivie4394c122011-05-04 17:07:55 +01001926choice
1927 prompt "Kernel command line type" if CMDLINE != ""
1928 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001929 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001930
1931config CMDLINE_FROM_BOOTLOADER
1932 bool "Use bootloader kernel arguments if available"
1933 help
1934 Uses the command-line options passed by the boot loader. If
1935 the boot loader doesn't provide any, the default kernel command
1936 string provided in CMDLINE will be used.
1937
1938config CMDLINE_EXTEND
1939 bool "Extend bootloader kernel arguments"
1940 help
1941 The command-line arguments provided by the boot loader will be
1942 appended to the default kernel command string.
1943
Alexander Holler92d20402010-02-16 19:04:53 +01001944config CMDLINE_FORCE
1945 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001946 help
1947 Always use the default kernel command string, even if the boot
1948 loader passes other arguments to the kernel.
1949 This is useful if you cannot or don't want to change the
1950 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001951endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001952
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953config XIP_KERNEL
1954 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05001955 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956 help
1957 Execute-In-Place allows the kernel to run from non-volatile storage
1958 directly addressable by the CPU, such as NOR flash. This saves RAM
1959 space since the text section of the kernel is not loaded from flash
1960 to RAM. Read-write sections, such as the data section and stack,
1961 are still copied to RAM. The XIP kernel is not compressed since
1962 it has to run directly from flash, so it will take more space to
1963 store it. The flash address used to link the kernel object files,
1964 and for storing it, is configuration dependent. Therefore, if you
1965 say Y here, you must know the proper physical address where to
1966 store the kernel image depending on your own flash memory usage.
1967
1968 Also note that the make target becomes "make xipImage" rather than
1969 "make zImage" or "make Image". The final kernel binary to put in
1970 ROM memory will be arch/arm/boot/xipImage.
1971
1972 If unsure, say N.
1973
1974config XIP_PHYS_ADDR
1975 hex "XIP Kernel Physical Location"
1976 depends on XIP_KERNEL
1977 default "0x00080000"
1978 help
1979 This is the physical address in your flash memory the kernel will
1980 be linked for and stored to. This address is dependent on your
1981 own flash usage.
1982
Richard Purdiec587e4a2007-02-06 21:29:00 +01001983config KEXEC
1984 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001985 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01001986 help
1987 kexec is a system call that implements the ability to shutdown your
1988 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001989 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001990 you can start any kernel with it, not just Linux.
1991
1992 It is an ongoing process to be certain the hardware in a machine
1993 is properly shutdown, so do not be surprised if this code does not
1994 initially work for you. It may help to enable device hotplugging
1995 support.
1996
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001997config ATAGS_PROC
1998 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001999 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002000 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002001 help
2002 Should the atags used to boot the kernel be exported in an "atags"
2003 file in procfs. Useful with kexec.
2004
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002005config CRASH_DUMP
2006 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002007 help
2008 Generate crash dump after being started by kexec. This should
2009 be normally only set in special crash dump kernels which are
2010 loaded in the main kernel with kexec-tools into a specially
2011 reserved region and then later executed after a crash by
2012 kdump/kexec. The crash dump kernel must be compiled to a
2013 memory address not used by the main kernel
2014
2015 For more details see Documentation/kdump/kdump.txt
2016
Eric Miaoe69edc792010-07-05 15:56:50 +02002017config AUTO_ZRELADDR
2018 bool "Auto calculation of the decompressed kernel image address"
2019 depends on !ZBOOT_ROM && !ARCH_U300
2020 help
2021 ZRELADDR is the physical address where the decompressed kernel
2022 image will be placed. If AUTO_ZRELADDR is selected, the address
2023 will be determined at run-time by masking the current IP with
2024 0xf8000000. This assumes the zImage being placed in the first 128MB
2025 from start of memory.
2026
Linus Torvalds1da177e2005-04-16 15:20:36 -07002027endmenu
2028
Russell Kingac9d7ef2008-08-18 17:26:00 +01002029menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030
Ben Dooks89c52ed2009-07-30 23:23:24 +01002031if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002032
2033source "drivers/cpufreq/Kconfig"
2034
Yong Shen64f102b2010-10-21 21:18:59 +08002035config CPU_FREQ_IMX
2036 tristate "CPUfreq driver for i.MX CPUs"
2037 depends on ARCH_MXC && CPU_FREQ
Arnd Bergmannf637c4c2012-08-16 10:40:40 +00002038 select CPU_FREQ_TABLE
Yong Shen64f102b2010-10-21 21:18:59 +08002039 help
2040 This enables the CPUfreq driver for i.MX CPUs.
2041
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042config CPU_FREQ_SA1100
2043 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002044
2045config CPU_FREQ_SA1110
2046 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07002047
2048config CPU_FREQ_INTEGRATOR
2049 tristate "CPUfreq driver for ARM Integrator CPUs"
2050 depends on ARCH_INTEGRATOR && CPU_FREQ
2051 default y
2052 help
2053 This enables the CPUfreq driver for ARM Integrator CPUs.
2054
2055 For details, take a look at <file:Documentation/cpu-freq>.
2056
2057 If in doubt, say Y.
2058
Russell King9e2697f2007-12-14 13:30:14 +00002059config CPU_FREQ_PXA
2060 bool
2061 depends on CPU_FREQ && ARCH_PXA && PXA25x
2062 default y
2063 select CPU_FREQ_DEFAULT_GOV_USERSPACE
Russell Kingb1b3f492012-10-06 17:12:25 +01002064 select CPU_FREQ_TABLE
Russell King9e2697f2007-12-14 13:30:14 +00002065
Ben Dooks9d56c022009-07-30 23:23:25 +01002066config CPU_FREQ_S3C
2067 bool
2068 help
2069 Internal configuration node for common cpufreq on Samsung SoC
2070
2071config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002072 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002073 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002074 select CPU_FREQ_S3C
2075 help
2076 This enables the CPUfreq driver for the Samsung S3C24XX family
2077 of CPUs.
2078
2079 For details, take a look at <file:Documentation/cpu-freq>.
2080
2081 If in doubt, say N.
2082
2083config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002084 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002085 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002086 help
2087 Compile in support for changing the PLL frequency from the
2088 S3C24XX series CPUfreq driver. The PLL takes time to settle
2089 after a frequency change, so by default it is not enabled.
2090
2091 This also means that the PLL tables for the selected CPU(s) will
2092 be built which may increase the size of the kernel image.
2093
2094config CPU_FREQ_S3C24XX_DEBUG
2095 bool "Debug CPUfreq Samsung driver core"
2096 depends on CPU_FREQ_S3C24XX
2097 help
2098 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2099
2100config CPU_FREQ_S3C24XX_IODEBUG
2101 bool "Debug CPUfreq Samsung driver IO timing"
2102 depends on CPU_FREQ_S3C24XX
2103 help
2104 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2105
Ben Dookse6d197a2009-07-30 23:23:42 +01002106config CPU_FREQ_S3C24XX_DEBUGFS
2107 bool "Export debugfs for CPUFreq"
2108 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2109 help
2110 Export status information via debugfs.
2111
Linus Torvalds1da177e2005-04-16 15:20:36 -07002112endif
2113
Russell Kingac9d7ef2008-08-18 17:26:00 +01002114source "drivers/cpuidle/Kconfig"
2115
2116endmenu
2117
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118menu "Floating point emulation"
2119
2120comment "At least one emulation must be selected"
2121
2122config FPE_NWFPE
2123 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002124 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002125 ---help---
2126 Say Y to include the NWFPE floating point emulator in the kernel.
2127 This is necessary to run most binaries. Linux does not currently
2128 support floating point hardware so you need to say Y here even if
2129 your machine has an FPA or floating point co-processor podule.
2130
2131 You may say N here if you are going to load the Acorn FPEmulator
2132 early in the bootup.
2133
2134config FPE_NWFPE_XP
2135 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002136 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002137 help
2138 Say Y to include 80-bit support in the kernel floating-point
2139 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2140 Note that gcc does not generate 80-bit operations by default,
2141 so in most cases this option only enlarges the size of the
2142 floating point emulator without any good reason.
2143
2144 You almost surely want to say N here.
2145
2146config FPE_FASTFPE
2147 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002148 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002149 ---help---
2150 Say Y here to include the FAST floating point emulator in the kernel.
2151 This is an experimental much faster emulator which now also has full
2152 precision for the mantissa. It does not support any exceptions.
2153 It is very simple, and approximately 3-6 times faster than NWFPE.
2154
2155 It should be sufficient for most programs. It may be not suitable
2156 for scientific calculations, but you have to check this for yourself.
2157 If you do not feel you need a faster FP emulation you should better
2158 choose NWFPE.
2159
2160config VFP
2161 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002162 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002163 help
2164 Say Y to include VFP support code in the kernel. This is needed
2165 if your hardware includes a VFP unit.
2166
2167 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2168 release notes and additional status information.
2169
2170 Say N if your target does not have VFP hardware.
2171
Catalin Marinas25ebee02007-09-25 15:22:24 +01002172config VFPv3
2173 bool
2174 depends on VFP
2175 default y if CPU_V7
2176
Catalin Marinasb5872db2008-01-10 19:16:17 +01002177config NEON
2178 bool "Advanced SIMD (NEON) Extension support"
2179 depends on VFPv3 && CPU_V7
2180 help
2181 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2182 Extension.
2183
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184endmenu
2185
2186menu "Userspace binary formats"
2187
2188source "fs/Kconfig.binfmt"
2189
2190config ARTHUR
2191 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002192 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002193 help
2194 Say Y here to include the kernel code necessary if you want to run
2195 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2196 experimental; if this sounds frightening, say N and sleep in peace.
2197 You can also say M here to compile this support as a module (which
2198 will be called arthur).
2199
2200endmenu
2201
2202menu "Power management options"
2203
Russell Kingeceab4a2005-11-15 11:31:41 +00002204source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002205
Johannes Bergf4cb5702007-12-08 02:14:00 +01002206config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002207 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002208 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002209 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002210 def_bool y
2211
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002212config ARM_CPU_SUSPEND
2213 def_bool PM_SLEEP
2214
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215endmenu
2216
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002217source "net/Kconfig"
2218
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002219source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002220
2221source "fs/Kconfig"
2222
Linus Torvalds1da177e2005-04-16 15:20:36 -07002223source "arch/arm/Kconfig.debug"
2224
2225source "security/Kconfig"
2226
2227source "crypto/Kconfig"
2228
2229source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002230
2231source "arch/arm/kvm/Kconfig"