blob: fc93deb1baaffcc19cda8eb6f0a3fd191f5441f3 [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
Thomas Gleixnerf7b861b2013-03-21 22:49:38 +010018 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010019 select GENERIC_STRNCPY_FROM_USER
20 select GENERIC_STRNLEN_USER
21 select HARDIRQS_SW_RESEND
22 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010023 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060024 select HAVE_ARCH_KGDB
Will Drewry4095ccc2012-11-15 22:12:29 +010025 select HAVE_ARCH_SECCOMP_FILTER
Wade Farnsworth0693bf62012-04-04 16:19:47 +010026 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010027 select HAVE_BPF_JIT
28 select HAVE_C_RECORDMCOUNT
29 select HAVE_DEBUG_KMEMLEAK
30 select HAVE_DMA_API_DEBUG
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_CONTIGUOUS if MMU
33 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
34 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
35 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
36 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
37 select HAVE_GENERIC_DMA_COHERENT
38 select HAVE_GENERIC_HARDIRQS
39 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
40 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010041 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010042 select HAVE_KERNEL_GZIP
43 select HAVE_KERNEL_LZMA
44 select HAVE_KERNEL_LZO
45 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010046 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080047 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010048 select HAVE_MEMBLOCK
49 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010050 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010051 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010052 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070053 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000054 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010055 select PERF_USE_VMALLOC
56 select RTC_LIB
57 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093058 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
59 select MODULES_USE_ELF_REL
Al Viro38a61b62012-10-21 15:54:27 -040060 select CLONE_BACKWARDS
Al Virob68fec22012-12-25 16:29:48 -050061 select OLD_SIGSUSPEND3
Al Viro50bcb7e2012-12-25 19:32:07 -050062 select OLD_SIGACTION
Kevin Hilmanb0088482013-03-28 22:54:40 +010063 select HAVE_CONTEXT_TRACKING
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 help
65 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000066 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000068 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 Europe. There is an ARM Linux project with a web page at
70 <http://www.arm.linux.org.uk/>.
71
Russell King74facff2011-06-02 11:16:22 +010072config ARM_HAS_SG_CHAIN
73 bool
74
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020075config NEED_SG_DMA_LENGTH
76 bool
77
78config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020079 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010080 select ARM_HAS_SG_CHAIN
81 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020082
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090083if ARM_DMA_USE_IOMMU
84
85config ARM_DMA_IOMMU_ALIGNMENT
86 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
87 range 4 9
88 default 8
89 help
90 DMA mapping framework by default aligns all buffers to the smallest
91 PAGE_SIZE order which is greater than or equal to the requested buffer
92 size. This works well for buffers up to a few hundreds kilobytes, but
93 for larger buffers it just a waste of address space. Drivers which has
94 relatively small addressing window (like 64Mib) might run out of
95 virtual space with just a few allocations.
96
97 With this parameter you can specify the maximum PAGE_SIZE order for
98 DMA IOMMU buffers. Larger buffers will be aligned only to this
99 specified order. The order is expressed as a power of two multiplied
100 by the PAGE_SIZE.
101
102endif
103
Russell King1a189b92008-04-13 21:41:55 +0100104config HAVE_PWM
105 bool
106
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100107config MIGHT_HAVE_PCI
108 bool
109
Ralf Baechle75e71532007-02-09 17:08:58 +0000110config SYS_SUPPORTS_APM_EMULATION
111 bool
112
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
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400369 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100370 select COMMON_CLK
371 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400372 select GENERIC_CLOCKEVENTS
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400373 select MULTI_IRQ_HANDLER
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
Arnd Bergmann662146b2013-01-04 13:38:03 +0000382 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100383 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100384 help
385 Support for the Cortina Systems Gemini family SoCs
386
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387config ARCH_EBSA110
388 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100389 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000390 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100391 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600392 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400393 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100394 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 help
396 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000397 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 Ethernet interface, two PCMCIA sockets, two serial ports and a
399 parallel port.
400
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000401config ARCH_EP93XX
402 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100403 select ARCH_HAS_HOLES_MEMORYMODEL
404 select ARCH_REQUIRE_GPIOLIB
405 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000406 select ARM_AMBA
407 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100408 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100409 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100410 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000411 help
412 This enables support for the Cirrus EP93xx series of CPUs.
413
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414config ARCH_FOOTBRIDGE
415 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000416 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000418 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200419 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600420 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400421 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000422 help
423 Support for systems based on the DC21285 companion chip
424 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100426config ARCH_NETX
427 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100428 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100429 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000430 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100431 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000432 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100433 This enables support for systems based on the Hilscher NetX Soc
434
Russell King3b938be2007-05-12 11:25:44 +0100435config ARCH_IOP13XX
436 bool "IOP13xx-based"
437 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100438 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100439 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400440 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600441 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100442 select PCI
443 select PLAT_IOP
444 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100445 help
446 Support for Intel's IOP13XX (XScale) family of processors.
447
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100448config ARCH_IOP32X
449 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100450 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100451 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000452 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500453 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600454 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100455 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100456 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000457 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100458 Support for Intel's 80219 and IOP32X (XScale) family of
459 processors.
460
461config ARCH_IOP33X
462 bool "IOP33x-based"
463 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100464 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000465 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500466 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600467 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100468 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100469 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100470 help
471 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472
Russell King3b938be2007-05-12 11:25:44 +0100473config ARCH_IXP4XX
474 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100475 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500476 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100477 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100478 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000479 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100480 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100481 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100482 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600483 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200484 select USB_EHCI_BIG_ENDIAN_MMIO
485 select USB_EHCI_BIG_ENDIAN_DESC
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100486 help
Russell King3b938be2007-05-12 11:25:44 +0100487 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100488
Saeed Bisharaedabd382009-08-06 15:12:43 +0300489config ARCH_DOVE
490 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300491 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100492 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300493 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100494 select MIGHT_HAVE_PCI
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100495 select PINCTRL
496 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200497 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100498 select USB_ARCH_HAS_EHCI
Thomas Petazzoni7d554902013-03-21 17:59:17 +0100499 select MVEBU_MBUS
Saeed Bisharaedabd382009-08-06 15:12:43 +0300500 help
501 Support for the Marvell Dove SoC 88AP510
502
Saeed Bishara651c74c2008-06-22 22:45:06 +0200503config ARCH_KIRKWOOD
504 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700505 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100506 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200507 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100508 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700509 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100510 select PINCTRL
511 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200512 select PLAT_ORION_LEGACY
Thomas Petazzoni5cc06732013-03-21 17:59:16 +0100513 select MVEBU_MBUS
Saeed Bishara651c74c2008-06-22 22:45:06 +0200514 help
515 Support for the following Marvell Kirkwood series SoCs:
516 88F6180, 88F6192 and 88F6281.
517
Russell King788c9702009-04-26 14:21:59 +0100518config ARCH_MV78XX0
519 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700520 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100521 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100522 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100523 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200524 select PLAT_ORION_LEGACY
Thomas Petazzoni95b80e02013-03-21 17:59:19 +0100525 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100526 help
527 Support for the following Marvell MV78xx0 series SoCs:
528 MV781x0, MV782x0.
529
530config ARCH_ORION5X
531 bool "Marvell Orion"
532 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700533 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100534 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100535 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100536 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200537 select PLAT_ORION_LEGACY
Thomas Petazzoni5d1190e2013-03-21 17:59:18 +0100538 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100539 help
540 Support for the following Marvell Orion 5x series SoCs:
541 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
542 Orion-2 (5281), Orion-1-90 (6183).
543
544config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500545 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100546 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100547 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100548 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100549 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100550 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800551 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800552 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100553 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800554 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100555 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400556 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100557 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500558 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100559
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100560config ARCH_KS8695
561 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100562 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200563 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100564 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200565 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100566 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100567 help
568 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
569 System-on-Chip devices.
570
Russell King788c9702009-04-26 14:21:59 +0100571config ARCH_W90X900
572 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100573 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100574 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100575 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100576 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100577 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200578 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100579 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
580 At present, the w90x900 has been renamed nuc900, regarding
581 the ARM series product line, you can login the following
582 link address to know more.
583
584 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
585 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400586
Russell King93e22562012-10-12 14:20:52 +0100587config ARCH_LPC32XX
588 bool "NXP LPC32XX"
589 select ARCH_REQUIRE_GPIOLIB
590 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000591 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100592 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100593 select CPU_ARM926T
594 select GENERIC_CLOCKEVENTS
595 select HAVE_IDE
596 select HAVE_PWM
597 select USB_ARCH_HAS_OHCI
598 select USE_OF
599 help
600 Support for the NXP LPC32XX family of processors
601
Linus Torvalds1da177e2005-04-16 15:20:36 -0700602config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700603 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100604 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100605 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100606 select ARCH_MTD_XIP
607 select ARCH_REQUIRE_GPIOLIB
608 select ARM_CPU_SUSPEND if PM
609 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100610 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100611 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100612 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800613 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100614 select HAVE_IDE
615 select MULTI_IRQ_HANDLER
616 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800617 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800618 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000619 help
eric miao2c8086a2007-09-11 19:13:17 -0700620 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
Russell King788c9702009-04-26 14:21:59 +0100622config ARCH_MSM
623 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700624 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800625 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100626 select GENERIC_CLOCKEVENTS
627 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800628 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800629 Support for Qualcomm MSM/QSD based systems. This runs on the
630 apps processor of the MSM/QSD and depends on a shared memory
631 interface to the modem processor which runs the baseband
632 stack and controls some vital subsystems
633 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800634
Magnus Dammc793c1b2010-02-05 11:14:49 +0000635config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900636 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900637 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100638 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800639 select HAVE_ARM_SCU if SMP
640 select HAVE_ARM_TWD if LOCAL_TIMERS
Russell Kingb1b3f492012-10-06 17:12:25 +0100641 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900642 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000643 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000644 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000645 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400646 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100647 select NO_IOPORT
Magnus Damm6722f6c2013-03-18 22:58:18 +0900648 select PINCTRL if ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100649 select PM_GENERIC_DOMAINS if PM
650 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000651 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900652 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000653
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654config ARCH_RPC
655 bool "RiscPC"
656 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100657 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100658 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000659 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100660 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200661 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100662 select HAVE_PATA_PLATFORM
663 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600664 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400665 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100666 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100667 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700668 help
669 On the Acorn Risc-PC, Linux can support the internal IDE disk and
670 CD-ROM interface, serial and parallel port, and the floppy drive.
671
672config ARCH_SA1100
673 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100674 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100675 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700676 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100677 select ARCH_SPARSEMEM_ENABLE
678 select CLKDEV_LOOKUP
679 select CLKSRC_MMIO
680 select CPU_FREQ
681 select CPU_SA1100
682 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200683 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100684 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500685 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400686 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100687 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000688 help
689 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900691config ARCH_S3C24XX
692 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100693 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900694 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100695 select CLKDEV_LOOKUP
Romain Naour7f78b6e2013-01-09 18:47:04 -0800696 select CLKSRC_MMIO
697 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100698 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900699 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900700 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100701 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900702 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500703 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600704 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900706 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
707 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
708 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
709 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900710
Ben Dooksa08ab632008-10-21 14:06:39 +0100711config ARCH_S3C64XX
712 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100713 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900714 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100715 select ARM_VIC
716 select CLKDEV_LOOKUP
Romain Naour04a49b72013-01-09 18:47:04 -0800717 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100718 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800719 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100720 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900721 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900722 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100723 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500724 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select NO_IOPORT
726 select PLAT_SAMSUNG
727 select S3C_DEV_NAND
728 select S3C_GPIO_TRACK
729 select SAMSUNG_CLKSRC
730 select SAMSUNG_GPIOLIB_4BIT
731 select SAMSUNG_IRQ_VIC_TIMER
732 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100733 help
734 Samsung S3C64XX series based systems
735
Kukjin Kim49b7a492010-09-07 15:47:18 +0900736config ARCH_S5P64X0
737 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900738 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900739 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100740 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900741 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100742 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900743 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900745 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500746 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900747 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900748 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
749 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900750
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200751config ARCH_S5PC100
752 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900753 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900754 select CLKDEV_LOOKUP
Romain Naour6a5a2e32013-01-09 18:47:04 -0800755 select CLKSRC_MMIO
Byungho Min5a7652f2009-06-23 21:39:42 +0900756 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800757 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100758 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900759 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900760 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100761 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500762 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900763 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200764 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900765
Kukjin Kim170f4e42010-02-24 16:40:44 +0900766config ARCH_S5PV210
767 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100768 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900769 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100770 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900771 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900772 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100773 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900774 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100775 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900776 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900777 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100778 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500779 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400780 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900781 help
782 Samsung S5PV210/S5PC110 series based systems
783
Kukjin Kim83014572011-11-06 13:54:56 +0900784config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100785 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100786 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900787 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100788 select ARCH_SPARSEMEM_ENABLE
789 select CLKDEV_LOOKUP
Olof Johansson340fcb52013-04-26 11:47:45 -0700790 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100791 select CPU_V7
792 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900793 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900794 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900795 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100796 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500797 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400798 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900799 help
Kukjin Kim83014572011-11-06 13:54:56 +0900800 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900801
Linus Torvalds1da177e2005-04-16 15:20:36 -0700802config ARCH_SHARK
803 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100804 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000805 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100806 select ISA
807 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400808 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100809 select PCI
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100810 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100811 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000812 help
813 Support for the StrongARM based Digital DNARD machine, also known
814 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700815
Linus Walleijd98aac72009-04-27 10:21:46 +0100816config ARCH_U300
817 bool "ST-Ericsson U300 Series"
818 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100819 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100820 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200821 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100822 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100823 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100824 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200825 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100826 select CPU_ARM926T
827 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100828 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200829 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100830 help
831 Support for ST-Ericsson U300 series mobile platforms.
832
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100833config ARCH_DAVINCI
834 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100835 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700836 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100837 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700838 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100839 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100840 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100841 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500842 select NEED_MACH_GPIO_H
Sekhar Nori689e3312012-08-28 15:27:52 +0530843 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100844 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100845 help
846 Support for TI's DaVinci platform.
847
Tony Lindgrena0694862013-01-11 11:24:20 -0800848config ARCH_OMAP1
849 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600850 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100851 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100852 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800853 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100854 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200855 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100856 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100857 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800858 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100859 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800860 select HAVE_IDE
861 select IRQ_DOMAIN
862 select NEED_MACH_IO_H if PCCARD
863 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100864 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800865 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800866
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867endchoice
868
Rob Herring387798b2012-09-06 13:41:12 -0500869menu "Multiple platform selection"
870 depends on ARCH_MULTIPLATFORM
871
872comment "CPU Core family selection"
873
874config ARCH_MULTI_V4
875 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500876 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100877 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500878
879config ARCH_MULTI_V4T
880 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500881 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100882 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500883
884config ARCH_MULTI_V5
885 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500886 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100887 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500888
889config ARCH_MULTI_V4_V5
890 bool
891
892config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800893 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500894 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100895 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500896
897config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800898 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500899 default y
900 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100901 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500902
903config ARCH_MULTI_V6_V7
904 bool
905
906config ARCH_MULTI_CPU_AUTO
907 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
908 select ARCH_MULTI_V5
909
910endmenu
911
Russell Kingccf50e22010-03-15 19:03:06 +0000912#
913# This is sorted alphabetically by mach-* pathname. However, plat-*
914# Kconfigs may be included either alphabetically (according to the
915# plat- suffix) or along side the corresponding mach-* source.
916#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200917source "arch/arm/mach-mvebu/Kconfig"
918
Russell King95b8f202010-01-14 11:43:54 +0000919source "arch/arm/mach-at91/Kconfig"
920
Christian Daudt8ac49e02012-11-19 09:46:10 -0800921source "arch/arm/mach-bcm/Kconfig"
922
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600923source "arch/arm/mach-bcm2835/Kconfig"
924
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925source "arch/arm/mach-clps711x/Kconfig"
926
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300927source "arch/arm/mach-cns3xxx/Kconfig"
928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-davinci/Kconfig"
930
931source "arch/arm/mach-dove/Kconfig"
932
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000933source "arch/arm/mach-ep93xx/Kconfig"
934
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935source "arch/arm/mach-footbridge/Kconfig"
936
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200937source "arch/arm/mach-gemini/Kconfig"
938
Rob Herring387798b2012-09-06 13:41:12 -0500939source "arch/arm/mach-highbank/Kconfig"
940
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941source "arch/arm/mach-integrator/Kconfig"
942
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100943source "arch/arm/mach-iop32x/Kconfig"
944
945source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
Dan Williams285f5fa2006-12-07 02:59:39 +0100947source "arch/arm/mach-iop13xx/Kconfig"
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949source "arch/arm/mach-ixp4xx/Kconfig"
950
Russell King95b8f202010-01-14 11:43:54 +0000951source "arch/arm/mach-kirkwood/Kconfig"
952
953source "arch/arm/mach-ks8695/Kconfig"
954
Russell King95b8f202010-01-14 11:43:54 +0000955source "arch/arm/mach-msm/Kconfig"
956
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200957source "arch/arm/mach-mv78xx0/Kconfig"
958
Shawn Guo3995eb82012-09-13 19:48:07 +0800959source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800961source "arch/arm/mach-mxs/Kconfig"
962
Russell King95b8f202010-01-14 11:43:54 +0000963source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800964
Russell King95b8f202010-01-14 11:43:54 +0000965source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000966
Tony Lindgrend48af152005-07-10 19:58:17 +0100967source "arch/arm/plat-omap/Kconfig"
968
969source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970
Tony Lindgren1dbae812005-11-10 14:26:51 +0000971source "arch/arm/mach-omap2/Kconfig"
972
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400973source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400974
Rob Herring387798b2012-09-06 13:41:12 -0500975source "arch/arm/mach-picoxcell/Kconfig"
976
Russell King95b8f202010-01-14 11:43:54 +0000977source "arch/arm/mach-pxa/Kconfig"
978source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700979
Russell King95b8f202010-01-14 11:43:54 +0000980source "arch/arm/mach-mmp/Kconfig"
981
982source "arch/arm/mach-realview/Kconfig"
983
984source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300985
Ben Dookscf383672009-11-10 00:14:58 +0000986source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100987
Rob Herring387798b2012-09-06 13:41:12 -0500988source "arch/arm/mach-socfpga/Kconfig"
989
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100990source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100991
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900992source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700993
Ben Dooksa08ab632008-10-21 14:06:39 +0100994if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900995source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100996endif
997
Kukjin Kim49b7a492010-09-07 15:47:18 +0900998source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900999
Byungho Min5a7652f2009-06-23 21:39:42 +09001000source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001001
Kukjin Kim170f4e42010-02-24 16:40:44 +09001002source "arch/arm/mach-s5pv210/Kconfig"
1003
Kukjin Kim83014572011-11-06 13:54:56 +09001004source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001005
Russell King882d01f2010-03-02 23:40:15 +00001006source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007
Maxime Ripard3b526342012-11-08 12:40:16 +01001008source "arch/arm/mach-sunxi/Kconfig"
1009
Barry Song156a0992012-08-23 13:41:58 +08001010source "arch/arm/mach-prima2/Kconfig"
1011
Erik Gillingc5f80062010-01-21 16:53:02 -08001012source "arch/arm/mach-tegra/Kconfig"
1013
Russell King95b8f202010-01-14 11:43:54 +00001014source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001015
Russell King95b8f202010-01-14 11:43:54 +00001016source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017
1018source "arch/arm/mach-versatile/Kconfig"
1019
Russell Kingceade892010-02-11 21:44:53 +00001020source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001021source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001022
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001023source "arch/arm/mach-virt/Kconfig"
1024
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001025source "arch/arm/mach-vt8500/Kconfig"
1026
wanzongshun7ec80dd2008-12-03 03:55:38 +01001027source "arch/arm/mach-w90x900/Kconfig"
1028
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001029source "arch/arm/mach-zynq/Kconfig"
1030
Linus Torvalds1da177e2005-04-16 15:20:36 -07001031# Definitions to make life easier
1032config ARCH_ACORN
1033 bool
1034
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001035config PLAT_IOP
1036 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001037 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001038
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001039config PLAT_ORION
1040 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001041 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001042 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001043 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001044 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001045
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001046config PLAT_ORION_LEGACY
1047 bool
1048 select PLAT_ORION
1049
Eric Miaobd5ce432009-01-20 12:06:01 +08001050config PLAT_PXA
1051 bool
1052
Russell Kingf4b8b312010-01-14 12:48:06 +00001053config PLAT_VERSATILE
1054 bool
1055
Russell Kinge3887712010-01-14 13:30:16 +00001056config ARM_TIMER_SP804
1057 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001058 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001059 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001060
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061source arch/arm/mm/Kconfig
1062
Russell King958cab02011-12-11 10:04:00 +00001063config ARM_NR_BANKS
1064 int
1065 default 16 if ARCH_EP93XX
1066 default 8
1067
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001068config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001069 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001070 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001071 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001072 help
1073 Enable support for iWMMXt context switching at run time if
1074 running on a CPU that supports it.
1075
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076config XSCALE_PMU
1077 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001078 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001079 default y
1080
eric miao52108642010-12-13 09:42:34 +01001081config MULTI_IRQ_HANDLER
1082 bool
1083 help
1084 Allow each machine to specify it's own IRQ handler at run time.
1085
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001086if !MMU
1087source "arch/arm/Kconfig-nommu"
1088endif
1089
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001090config ARM_ERRATA_326103
1091 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1092 depends on CPU_V6
1093 help
1094 Executing a SWP instruction to read-only memory does not set bit 11
1095 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1096 treat the access as a read, preventing a COW from occurring and
1097 causing the faulting task to livelock.
1098
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001099config ARM_ERRATA_411920
1100 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001101 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001102 help
1103 Invalidation of the Instruction Cache operation can
1104 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1105 It does not affect the MPCore. This option enables the ARM Ltd.
1106 recommended workaround.
1107
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001108config ARM_ERRATA_430973
1109 bool "ARM errata: Stale prediction on replaced interworking branch"
1110 depends on CPU_V7
1111 help
1112 This option enables the workaround for the 430973 Cortex-A8
1113 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1114 interworking branch is replaced with another code sequence at the
1115 same virtual address, whether due to self-modifying code or virtual
1116 to physical address re-mapping, Cortex-A8 does not recover from the
1117 stale interworking branch prediction. This results in Cortex-A8
1118 executing the new code sequence in the incorrect ARM or Thumb state.
1119 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1120 and also flushes the branch target cache at every context switch.
1121 Note that setting specific bits in the ACTLR register may not be
1122 available in non-secure mode.
1123
Catalin Marinas855c5512009-04-30 17:06:15 +01001124config ARM_ERRATA_458693
1125 bool "ARM errata: Processor deadlock when a false hazard is created"
1126 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001127 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001128 help
1129 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1130 erratum. For very specific sequences of memory operations, it is
1131 possible for a hazard condition intended for a cache line to instead
1132 be incorrectly associated with a different cache line. This false
1133 hazard might then cause a processor deadlock. The workaround enables
1134 the L1 caching of the NEON accesses and disables the PLD instruction
1135 in the ACTLR register. Note that setting specific bits in the ACTLR
1136 register may not be available in non-secure mode.
1137
Catalin Marinas0516e462009-04-30 17:06:20 +01001138config ARM_ERRATA_460075
1139 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1140 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001141 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001142 help
1143 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1144 erratum. Any asynchronous access to the L2 cache may encounter a
1145 situation in which recent store transactions to the L2 cache are lost
1146 and overwritten with stale memory contents from external memory. The
1147 workaround disables the write-allocate mode for the L2 cache via the
1148 ACTLR register. Note that setting specific bits in the ACTLR register
1149 may not be available in non-secure mode.
1150
Will Deacon9f050272010-09-14 09:51:43 +01001151config ARM_ERRATA_742230
1152 bool "ARM errata: DMB operation may be faulty"
1153 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001154 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001155 help
1156 This option enables the workaround for the 742230 Cortex-A9
1157 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1158 between two write operations may not ensure the correct visibility
1159 ordering of the two writes. This workaround sets a specific bit in
1160 the diagnostic register of the Cortex-A9 which causes the DMB
1161 instruction to behave as a DSB, ensuring the correct behaviour of
1162 the two writes.
1163
Will Deacona672e992010-09-14 09:53:02 +01001164config ARM_ERRATA_742231
1165 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1166 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001167 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001168 help
1169 This option enables the workaround for the 742231 Cortex-A9
1170 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1171 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1172 accessing some data located in the same cache line, may get corrupted
1173 data due to bad handling of the address hazard when the line gets
1174 replaced from one of the CPUs at the same time as another CPU is
1175 accessing it. This workaround sets specific bits in the diagnostic
1176 register of the Cortex-A9 which reduces the linefill issuing
1177 capabilities of the processor.
1178
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001179config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001180 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001181 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001182 help
1183 The PL310 L2 cache controller implements three types of Clean &
1184 Invalidate maintenance operations: by Physical Address
1185 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1186 They are architecturally defined to behave as the execution of a
1187 clean operation followed immediately by an invalidate operation,
1188 both performing to the same memory location. This functionality
1189 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001190 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001191
1192config ARM_ERRATA_720789
1193 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001194 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001195 help
1196 This option enables the workaround for the 720789 Cortex-A9 (prior to
1197 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1198 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1199 As a consequence of this erratum, some TLB entries which should be
1200 invalidated are not, resulting in an incoherency in the system page
1201 tables. The workaround changes the TLB flushing routines to invalidate
1202 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001203
Russell King1f0090a2011-03-16 23:35:25 +00001204config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001205 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001206 depends on CACHE_L2X0
1207 help
1208 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1209 operation (offset 0x7FC). This operation runs in background so that
1210 PL310 can handle normal accesses while it is in progress. Under very
1211 rare circumstances, due to this erratum, write data can be lost when
1212 PL310 treats a cacheable write transaction during a Clean &
1213 Invalidate by Way operation.
1214
Will Deacon475d92f2010-09-28 14:02:02 +01001215config ARM_ERRATA_743622
1216 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1217 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001218 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001219 help
1220 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001221 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001222 optimisation in the Cortex-A9 Store Buffer may lead to data
1223 corruption. This workaround sets a specific bit in the diagnostic
1224 register of the Cortex-A9 which disables the Store Buffer
1225 optimisation, preventing the defect from occurring. This has no
1226 visible impact on the overall performance or power consumption of the
1227 processor.
1228
Will Deacon9a27c272011-02-18 16:36:35 +01001229config ARM_ERRATA_751472
1230 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001231 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001232 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001233 help
1234 This option enables the workaround for the 751472 Cortex-A9 (prior
1235 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1236 completion of a following broadcasted operation if the second
1237 operation is received by a CPU before the ICIALLUIS has completed,
1238 potentially leading to corrupted entries in the cache or TLB.
1239
Will Deaconfa0ce402011-11-14 17:24:57 +01001240config PL310_ERRATA_753970
1241 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001242 depends on CACHE_PL310
1243 help
1244 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1245
1246 Under some condition the effect of cache sync operation on
1247 the store buffer still remains when the operation completes.
1248 This means that the store buffer is always asked to drain and
1249 this prevents it from merging any further writes. The workaround
1250 is to replace the normal offset of cache sync operation (0x730)
1251 by another offset targeting an unmapped PL310 register 0x740.
1252 This has the same effect as the cache sync operation: store buffer
1253 drain and waiting for all buffers empty.
1254
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001255config ARM_ERRATA_754322
1256 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1257 depends on CPU_V7
1258 help
1259 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1260 r3p*) erratum. A speculative memory access may cause a page table walk
1261 which starts prior to an ASID switch but completes afterwards. This
1262 can populate the micro-TLB with a stale entry which may be hit with
1263 the new ASID. This workaround places two dsb instructions in the mm
1264 switching code so that no page table walks can cross the ASID switch.
1265
Will Deacon5dab26af2011-03-04 12:38:54 +01001266config ARM_ERRATA_754327
1267 bool "ARM errata: no automatic Store Buffer drain"
1268 depends on CPU_V7 && SMP
1269 help
1270 This option enables the workaround for the 754327 Cortex-A9 (prior to
1271 r2p0) erratum. The Store Buffer does not have any automatic draining
1272 mechanism and therefore a livelock may occur if an external agent
1273 continuously polls a memory location waiting to observe an update.
1274 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1275 written polling loops from denying visibility of updates to memory.
1276
Catalin Marinas145e10e2011-08-15 11:04:41 +01001277config ARM_ERRATA_364296
1278 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1279 depends on CPU_V6 && !SMP
1280 help
1281 This options enables the workaround for the 364296 ARM1136
1282 r0p2 erratum (possible cache data corruption with
1283 hit-under-miss enabled). It sets the undocumented bit 31 in
1284 the auxiliary control register and the FI bit in the control
1285 register, thus disabling hit-under-miss without putting the
1286 processor into full low interrupt latency mode. ARM11MPCore
1287 is not affected.
1288
Will Deaconf630c1b2011-09-15 11:45:15 +01001289config ARM_ERRATA_764369
1290 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1291 depends on CPU_V7 && SMP
1292 help
1293 This option enables the workaround for erratum 764369
1294 affecting Cortex-A9 MPCore with two or more processors (all
1295 current revisions). Under certain timing circumstances, a data
1296 cache line maintenance operation by MVA targeting an Inner
1297 Shareable memory region may fail to proceed up to either the
1298 Point of Coherency or to the Point of Unification of the
1299 system. This workaround adds a DSB instruction before the
1300 relevant cache maintenance functions and sets a specific bit
1301 in the diagnostic control register of the SCU.
1302
Will Deacon11ed0ba2011-11-14 17:24:58 +01001303config PL310_ERRATA_769419
1304 bool "PL310 errata: no automatic Store Buffer drain"
1305 depends on CACHE_L2X0
1306 help
1307 On revisions of the PL310 prior to r3p2, the Store Buffer does
1308 not automatically drain. This can cause normal, non-cacheable
1309 writes to be retained when the memory system is idle, leading
1310 to suboptimal I/O performance for drivers using coherent DMA.
1311 This option adds a write barrier to the cpu_idle loop so that,
1312 on systems with an outer cache, the store buffer is drained
1313 explicitly.
1314
Simon Horman7253b852012-09-28 02:12:45 +01001315config ARM_ERRATA_775420
1316 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1317 depends on CPU_V7
1318 help
1319 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1320 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1321 operation aborts with MMU exception, it might cause the processor
1322 to deadlock. This workaround puts DSB before executing ISB if
1323 an abort may occur on cache maintenance.
1324
Catalin Marinas93dc6882013-03-26 23:35:04 +01001325config ARM_ERRATA_798181
1326 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1327 depends on CPU_V7 && SMP
1328 help
1329 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1330 adequately shooting down all use of the old entries. This
1331 option enables the Linux kernel workaround for this erratum
1332 which sends an IPI to the CPUs that are running the same ASID
1333 as the one being invalidated.
1334
Linus Torvalds1da177e2005-04-16 15:20:36 -07001335endmenu
1336
1337source "arch/arm/common/Kconfig"
1338
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339menu "Bus support"
1340
1341config ARM_AMBA
1342 bool
1343
1344config ISA
1345 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 help
1347 Find out whether you have ISA slots on your motherboard. ISA is the
1348 name of a bus system, i.e. the way the CPU talks to the other stuff
1349 inside your box. Other bus systems are PCI, EISA, MicroChannel
1350 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1351 newer boards don't support it. If you have ISA, say Y, otherwise N.
1352
Russell King065909b2006-01-04 15:44:16 +00001353# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001354config ISA_DMA
1355 bool
Russell King065909b2006-01-04 15:44:16 +00001356 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001357
Russell King065909b2006-01-04 15:44:16 +00001358# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001359config ISA_DMA_API
1360 bool
Al Viro5cae8412005-05-04 05:39:22 +01001361
Linus Torvalds1da177e2005-04-16 15:20:36 -07001362config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001363 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001364 help
1365 Find out whether you have a PCI motherboard. PCI is the name of a
1366 bus system, i.e. the way the CPU talks to the other stuff inside
1367 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1368 VESA. If you have PCI, say Y, otherwise N.
1369
Anton Vorontsov52882172010-04-19 13:20:49 +01001370config PCI_DOMAINS
1371 bool
1372 depends on PCI
1373
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001374config PCI_NANOENGINE
1375 bool "BSE nanoEngine PCI support"
1376 depends on SA1100_NANOENGINE
1377 help
1378 Enable PCI on the BSE nanoEngine board.
1379
Matthew Wilcox36e23592007-07-10 10:54:40 -06001380config PCI_SYSCALL
1381 def_bool PCI
1382
Linus Torvalds1da177e2005-04-16 15:20:36 -07001383# Select the host bridge type
1384config PCI_HOST_VIA82C505
1385 bool
1386 depends on PCI && ARCH_SHARK
1387 default y
1388
Mike Rapoporta0113a92007-11-25 08:55:34 +01001389config PCI_HOST_ITE8152
1390 bool
1391 depends on PCI && MACH_ARMCORE
1392 default y
1393 select DMABOUNCE
1394
Linus Torvalds1da177e2005-04-16 15:20:36 -07001395source "drivers/pci/Kconfig"
1396
1397source "drivers/pcmcia/Kconfig"
1398
1399endmenu
1400
1401menu "Kernel Features"
1402
Dave Martin3b556582011-12-07 15:38:04 +00001403config HAVE_SMP
1404 bool
1405 help
1406 This option should be selected by machines which have an SMP-
1407 capable CPU.
1408
1409 The only effect of this option is to make the SMP-related
1410 options available to the user for configuration.
1411
Linus Torvalds1da177e2005-04-16 15:20:36 -07001412config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001413 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001414 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001415 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001416 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001417 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +01001418 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001419 help
1420 This enables support for systems with more than one CPU. If you have
1421 a system with only one CPU, like most personal computers, say N. If
1422 you have a system with more than one CPU, say Y.
1423
1424 If you say N here, the kernel will run on single and multiprocessor
1425 machines, but will use only one CPU of a multiprocessor machine. If
1426 you say Y here, the kernel will run on many, but not all, single
1427 processor machines. On a single processor machine, the kernel will
1428 run faster if you say N here.
1429
Paul Bolle395cf962011-08-15 02:02:26 +02001430 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001431 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001432 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001433
1434 If you don't know what to do here, say N.
1435
Russell Kingf00ec482010-09-04 10:47:48 +01001436config SMP_ON_UP
1437 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001438 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001439 default y
1440 help
1441 SMP kernels contain instructions which fail on non-SMP processors.
1442 Enabling this option allows the kernel to modify itself to make
1443 these instructions safe. Disabling it allows about 1K of space
1444 savings.
1445
1446 If you don't know what to do here, say Y.
1447
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001448config ARM_CPU_TOPOLOGY
1449 bool "Support cpu topology definition"
1450 depends on SMP && CPU_V7
1451 default y
1452 help
1453 Support ARM cpu topology definition. The MPIDR register defines
1454 affinity between processors which is then used to describe the cpu
1455 topology of an ARM System.
1456
1457config SCHED_MC
1458 bool "Multi-core scheduler support"
1459 depends on ARM_CPU_TOPOLOGY
1460 help
1461 Multi-core scheduler support improves the CPU scheduler's decision
1462 making when dealing with multi-core CPU chips at a cost of slightly
1463 increased overhead in some places. If unsure say N here.
1464
1465config SCHED_SMT
1466 bool "SMT scheduler support"
1467 depends on ARM_CPU_TOPOLOGY
1468 help
1469 Improves the CPU scheduler's decision making when dealing with
1470 MultiThreading at a cost of slightly increased overhead in some
1471 places. If unsure say N here.
1472
Russell Kinga8cbcd92009-05-16 11:51:14 +01001473config HAVE_ARM_SCU
1474 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001475 help
1476 This option enables support for the ARM system coherency unit
1477
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001478config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001479 bool "Architected timer support"
1480 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001481 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001482 help
1483 This option enables support for the ARM architected timer
1484
Russell Kingf32f4ce2009-05-16 12:14:21 +01001485config HAVE_ARM_TWD
1486 bool
1487 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001488 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001489 help
1490 This options enables support for the ARM timer and watchdog unit
1491
Nicolas Pitree8db2882012-04-12 02:45:22 -04001492config MCPM
1493 bool "Multi-Cluster Power Management"
1494 depends on CPU_V7 && SMP
1495 help
1496 This option provides the common power management infrastructure
1497 for (multi-)cluster based systems, such as big.LITTLE based
1498 systems.
1499
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001500choice
1501 prompt "Memory split"
1502 default VMSPLIT_3G
1503 help
1504 Select the desired split between kernel and user memory.
1505
1506 If you are not absolutely sure what you are doing, leave this
1507 option alone!
1508
1509 config VMSPLIT_3G
1510 bool "3G/1G user/kernel split"
1511 config VMSPLIT_2G
1512 bool "2G/2G user/kernel split"
1513 config VMSPLIT_1G
1514 bool "1G/3G user/kernel split"
1515endchoice
1516
1517config PAGE_OFFSET
1518 hex
1519 default 0x40000000 if VMSPLIT_1G
1520 default 0x80000000 if VMSPLIT_2G
1521 default 0xC0000000
1522
Linus Torvalds1da177e2005-04-16 15:20:36 -07001523config NR_CPUS
1524 int "Maximum number of CPUs (2-32)"
1525 range 2 32
1526 depends on SMP
1527 default "4"
1528
Russell Kinga054a812005-11-02 22:24:33 +00001529config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001530 bool "Support for hot-pluggable CPUs"
1531 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001532 help
1533 Say Y here to experiment with turning CPUs off and on. CPUs
1534 can be controlled through /sys/devices/system/cpu.
1535
Will Deacon2bdd4242012-12-12 19:20:52 +00001536config ARM_PSCI
1537 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1538 depends on CPU_V7
1539 help
1540 Say Y here if you want Linux to communicate with system firmware
1541 implementing the PSCI specification for CPU-centric power
1542 management operations described in ARM document number ARM DEN
1543 0022A ("Power State Coordination Interface System Software on
1544 ARM processors").
1545
Russell King37ee16a2005-11-08 19:08:05 +00001546config LOCAL_TIMERS
1547 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001548 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001549 default y
1550 help
1551 Enable support for local timers on SMP platforms, rather then the
1552 legacy IPI broadcast method. Local timers allows the system
1553 accounting to be spread across the timer interval, preventing a
1554 "thundering herd" at every timer tick.
1555
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001556# The GPIO number here must be sorted by descending number. In case of
1557# a multiplatform kernel, we just want the highest value required by the
1558# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001559config ARCH_NR_GPIO
1560 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001561 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301562 default 512 if SOC_OMAP5
Olof Johansson06b851e2013-04-02 18:33:58 -07001563 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001564 default 352 if ARCH_VT8500
1565 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001566 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001567 default 0
1568 help
1569 Maximum number of GPIOs in the system.
1570
1571 If unsure, leave the default value.
1572
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001573source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001574
Russell Kingf8065812006-03-02 22:41:59 +00001575config HZ
1576 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001577 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001578 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001579 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001580 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001581 default 100
1582
Russell Kingb28748f2013-02-17 14:40:33 +00001583config SCHED_HRTICK
1584 def_bool HIGH_RES_TIMERS
1585
Catalin Marinas16c79652009-07-24 12:33:02 +01001586config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001587 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Russell King00b7ded2012-10-22 22:54:30 +01001588 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001589 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001590 select AEABI
1591 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001592 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001593 help
1594 By enabling this option, the kernel will be compiled in
1595 Thumb-2 mode. A compiler/assembler that understand the unified
1596 ARM-Thumb syntax is needed.
1597
1598 If unsure, say N.
1599
Dave Martin6f685c52011-03-03 11:41:12 +01001600config THUMB2_AVOID_R_ARM_THM_JUMP11
1601 bool "Work around buggy Thumb-2 short branch relocations in gas"
1602 depends on THUMB2_KERNEL && MODULES
1603 default y
1604 help
1605 Various binutils versions can resolve Thumb-2 branches to
1606 locally-defined, preemptible global symbols as short-range "b.n"
1607 branch instructions.
1608
1609 This is a problem, because there's no guarantee the final
1610 destination of the symbol, or any candidate locations for a
1611 trampoline, are within range of the branch. For this reason, the
1612 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1613 relocation in modules at all, and it makes little sense to add
1614 support.
1615
1616 The symptom is that the kernel fails with an "unsupported
1617 relocation" error when loading some modules.
1618
1619 Until fixed tools are available, passing
1620 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1621 code which hits this problem, at the cost of a bit of extra runtime
1622 stack usage in some cases.
1623
1624 The problem is described in more detail at:
1625 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1626
1627 Only Thumb-2 kernels are affected.
1628
1629 Unless you are sure your tools don't have this problem, say Y.
1630
Catalin Marinas0becb082009-07-24 12:32:53 +01001631config ARM_ASM_UNIFIED
1632 bool
1633
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001634config AEABI
1635 bool "Use the ARM EABI to compile the kernel"
1636 help
1637 This option allows for the kernel to be compiled using the latest
1638 ARM ABI (aka EABI). This is only useful if you are using a user
1639 space environment that is also compiled with EABI.
1640
1641 Since there are major incompatibilities between the legacy ABI and
1642 EABI, especially with regard to structure member alignment, this
1643 option also changes the kernel syscall calling convention to
1644 disambiguate both ABIs and allow for backward compatibility support
1645 (selected with CONFIG_OABI_COMPAT).
1646
1647 To use this you need GCC version 4.0.0 or later.
1648
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001649config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001650 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001651 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001652 default y
1653 help
1654 This option preserves the old syscall interface along with the
1655 new (ARM EABI) one. It also provides a compatibility layer to
1656 intercept syscalls that have structure arguments which layout
1657 in memory differs between the legacy ABI and the new ARM EABI
1658 (only for non "thumb" binaries). This option adds a tiny
1659 overhead to all syscalls and produces a slightly larger kernel.
1660 If you know you'll be using only pure EABI user space then you
1661 can say N here. If this option is not selected and you attempt
1662 to execute a legacy ABI binary then the result will be
1663 UNPREDICTABLE (in fact it can be predicted that it won't work
1664 at all). If in doubt say Y.
1665
Mel Gormaneb335752009-05-13 17:34:48 +01001666config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001667 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001668
Russell King05944d72006-11-30 20:43:51 +00001669config ARCH_SPARSEMEM_ENABLE
1670 bool
1671
Russell King07a2f732008-10-01 21:39:58 +01001672config ARCH_SPARSEMEM_DEFAULT
1673 def_bool ARCH_SPARSEMEM_ENABLE
1674
Russell King05944d72006-11-30 20:43:51 +00001675config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001676 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001677
Will Deacon7b7bf492011-05-19 13:21:14 +01001678config HAVE_ARCH_PFN_VALID
1679 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1680
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001681config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001682 bool "High Memory Support"
1683 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001684 help
1685 The address space of ARM processors is only 4 Gigabytes large
1686 and it has to accommodate user address space, kernel address
1687 space as well as some memory mapped IO. That means that, if you
1688 have a large amount of physical memory and/or IO, not all of the
1689 memory can be "permanently mapped" by the kernel. The physical
1690 memory that is not permanently mapped is called "high memory".
1691
1692 Depending on the selected kernel/user memory split, minimum
1693 vmalloc space and actual amount of RAM, you may not need this
1694 option which should result in a slightly faster kernel.
1695
1696 If unsure, say n.
1697
Russell King65cec8e2009-08-17 20:02:06 +01001698config HIGHPTE
1699 bool "Allocate 2nd-level pagetables from highmem"
1700 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001701
Jamie Iles1b8873a2010-02-02 20:25:44 +01001702config HW_PERF_EVENTS
1703 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001704 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001705 default y
1706 help
1707 Enable hardware performance counter support for perf events. If
1708 disabled, perf events will use software events only.
1709
Dave Hansen3f22ab22005-06-23 00:07:43 -07001710source "mm/Kconfig"
1711
Magnus Dammc1b2d972010-07-05 10:00:11 +01001712config FORCE_MAX_ZONEORDER
1713 int "Maximum zone order" if ARCH_SHMOBILE
1714 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001715 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001716 default "9" if SA1111
1717 default "11"
1718 help
1719 The kernel memory allocator divides physically contiguous memory
1720 blocks into "zones", where each zone is a power of two number of
1721 pages. This option selects the largest power of two that the kernel
1722 keeps in the memory allocator. If you need to allocate very large
1723 blocks of physically contiguous memory, then you may need to
1724 increase this value.
1725
1726 This config option is actually maximum order plus one. For example,
1727 a value of 11 means that the largest free memory block is 2^10 pages.
1728
Linus Torvalds1da177e2005-04-16 15:20:36 -07001729config ALIGNMENT_TRAP
1730 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001731 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001732 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001733 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001734 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001735 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001736 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1737 address divisible by 4. On 32-bit ARM processors, these non-aligned
1738 fetch/store instructions will be emulated in software if you say
1739 here, which has a severe performance impact. This is necessary for
1740 correct operation of some network protocols. With an IP-only
1741 configuration it is safe to say N, otherwise say Y.
1742
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001743config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001744 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1745 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001746 default y if CPU_FEROCEON
1747 help
1748 Implement faster copy_to_user and clear_user methods for CPU
1749 cores where a 8-word STM instruction give significantly higher
1750 memory write throughput than a sequence of individual 32bit stores.
1751
1752 A possible side effect is a slight increase in scheduling latency
1753 between threads sharing the same address space if they invoke
1754 such copy operations with large buffers.
1755
1756 However, if the CPU data cache is using a write-allocate mode,
1757 this option is unlikely to provide any performance gain.
1758
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001759config SECCOMP
1760 bool
1761 prompt "Enable seccomp to safely compute untrusted bytecode"
1762 ---help---
1763 This kernel feature is useful for number crunching applications
1764 that may need to compute untrusted bytecode during their
1765 execution. By using pipes or other transports made available to
1766 the process as file descriptors supporting the read/write
1767 syscalls, it's possible to isolate those applications in
1768 their own address space using seccomp. Once seccomp is
1769 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1770 and the task is only allowed to execute a few safe syscalls
1771 defined by each seccomp mode.
1772
Nicolas Pitrec743f382010-05-24 23:55:42 -04001773config CC_STACKPROTECTOR
1774 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1775 help
1776 This option turns on the -fstack-protector GCC feature. This
1777 feature puts, at the beginning of functions, a canary value on
1778 the stack just before the return address, and validates
1779 the value just before actually returning. Stack based buffer
1780 overflows (that need to overwrite this return address) now also
1781 overwrite the canary, which gets detected and the attack is then
1782 neutralized via a kernel panic.
1783 This feature requires gcc version 4.2 or above.
1784
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001785config XEN_DOM0
1786 def_bool y
1787 depends on XEN
1788
1789config XEN
1790 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001791 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001792 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001793 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001794 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001795 help
1796 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1797
Linus Torvalds1da177e2005-04-16 15:20:36 -07001798endmenu
1799
1800menu "Boot options"
1801
Grant Likely9eb8f672011-04-28 14:27:20 -06001802config USE_OF
1803 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001804 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001805 select OF
1806 select OF_EARLY_FLATTREE
1807 help
1808 Include support for flattened device tree machine descriptions.
1809
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001810config ATAGS
1811 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1812 default y
1813 help
1814 This is the traditional way of passing data to the kernel at boot
1815 time. If you are solely relying on the flattened device tree (or
1816 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1817 to remove ATAGS support from your kernel binary. If unsure,
1818 leave this to y.
1819
1820config DEPRECATED_PARAM_STRUCT
1821 bool "Provide old way to pass kernel parameters"
1822 depends on ATAGS
1823 help
1824 This was deprecated in 2001 and announced to live on for 5 years.
1825 Some old boot loaders still use this way.
1826
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827# Compressed boot loader in ROM. Yes, we really want to ask about
1828# TEXT and BSS so we preserve their values in the config files.
1829config ZBOOT_ROM_TEXT
1830 hex "Compressed ROM boot loader base address"
1831 default "0"
1832 help
1833 The physical address at which the ROM-able zImage is to be
1834 placed in the target. Platforms which normally make use of
1835 ROM-able zImage formats normally set this to a suitable
1836 value in their defconfig file.
1837
1838 If ZBOOT_ROM is not enabled, this has no effect.
1839
1840config ZBOOT_ROM_BSS
1841 hex "Compressed ROM boot loader BSS address"
1842 default "0"
1843 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001844 The base address of an area of read/write memory in the target
1845 for the ROM-able zImage which must be available while the
1846 decompressor is running. It must be large enough to hold the
1847 entire decompressed kernel plus an additional 128 KiB.
1848 Platforms which normally make use of ROM-able zImage formats
1849 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001850
1851 If ZBOOT_ROM is not enabled, this has no effect.
1852
1853config ZBOOT_ROM
1854 bool "Compressed boot loader in ROM/flash"
1855 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1856 help
1857 Say Y here if you intend to execute your compressed kernel image
1858 (zImage) directly from ROM or flash. If unsure, say N.
1859
Simon Horman090ab3f2011-04-26 06:29:53 +01001860choice
1861 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001862 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001863 default ZBOOT_ROM_NONE
1864 help
1865 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001866 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001867 kernel image to an MMC or SD card and boot the kernel straight
1868 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001869 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001870 rest the kernel image to RAM.
1871
1872config ZBOOT_ROM_NONE
1873 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1874 help
1875 Do not load image from SD or MMC
1876
Simon Hormanf45b1142011-01-11 04:01:08 +01001877config ZBOOT_ROM_MMCIF
1878 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001879 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001880 Load image from MMCIF hardware block.
1881
1882config ZBOOT_ROM_SH_MOBILE_SDHI
1883 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1884 help
1885 Load image from SDHI hardware block
1886
1887endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001888
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001889config ARM_APPENDED_DTB
1890 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001891 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001892 help
1893 With this option, the boot code will look for a device tree binary
1894 (DTB) appended to zImage
1895 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1896
1897 This is meant as a backward compatibility convenience for those
1898 systems with a bootloader that can't be upgraded to accommodate
1899 the documented boot protocol using a device tree.
1900
1901 Beware that there is very little in terms of protection against
1902 this option being confused by leftover garbage in memory that might
1903 look like a DTB header after a reboot if no actual DTB is appended
1904 to zImage. Do not leave this option active in a production kernel
1905 if you don't intend to always append a DTB. Proper passing of the
1906 location into r2 of a bootloader provided DTB is always preferable
1907 to this option.
1908
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001909config ARM_ATAG_DTB_COMPAT
1910 bool "Supplement the appended DTB with traditional ATAG information"
1911 depends on ARM_APPENDED_DTB
1912 help
1913 Some old bootloaders can't be updated to a DTB capable one, yet
1914 they provide ATAGs with memory configuration, the ramdisk address,
1915 the kernel cmdline string, etc. Such information is dynamically
1916 provided by the bootloader and can't always be stored in a static
1917 DTB. To allow a device tree enabled kernel to be used with such
1918 bootloaders, this option allows zImage to extract the information
1919 from the ATAG list and store it at run time into the appended DTB.
1920
Genoud Richardd0f34a112012-06-26 16:37:59 +01001921choice
1922 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1923 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1924
1925config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1926 bool "Use bootloader kernel arguments if available"
1927 help
1928 Uses the command-line options passed by the boot loader instead of
1929 the device tree bootargs property. If the boot loader doesn't provide
1930 any, the device tree bootargs property will be used.
1931
1932config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1933 bool "Extend with bootloader kernel arguments"
1934 help
1935 The command-line arguments provided by the boot loader will be
1936 appended to the the device tree bootargs property.
1937
1938endchoice
1939
Linus Torvalds1da177e2005-04-16 15:20:36 -07001940config CMDLINE
1941 string "Default kernel command string"
1942 default ""
1943 help
1944 On some architectures (EBSA110 and CATS), there is currently no way
1945 for the boot loader to pass arguments to the kernel. For these
1946 architectures, you should supply some command-line options at build
1947 time by entering them here. As a minimum, you should specify the
1948 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1949
Victor Boivie4394c122011-05-04 17:07:55 +01001950choice
1951 prompt "Kernel command line type" if CMDLINE != ""
1952 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001953 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001954
1955config CMDLINE_FROM_BOOTLOADER
1956 bool "Use bootloader kernel arguments if available"
1957 help
1958 Uses the command-line options passed by the boot loader. If
1959 the boot loader doesn't provide any, the default kernel command
1960 string provided in CMDLINE will be used.
1961
1962config CMDLINE_EXTEND
1963 bool "Extend bootloader kernel arguments"
1964 help
1965 The command-line arguments provided by the boot loader will be
1966 appended to the default kernel command string.
1967
Alexander Holler92d20402010-02-16 19:04:53 +01001968config CMDLINE_FORCE
1969 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001970 help
1971 Always use the default kernel command string, even if the boot
1972 loader passes other arguments to the kernel.
1973 This is useful if you cannot or don't want to change the
1974 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001975endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001976
Linus Torvalds1da177e2005-04-16 15:20:36 -07001977config XIP_KERNEL
1978 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05001979 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001980 help
1981 Execute-In-Place allows the kernel to run from non-volatile storage
1982 directly addressable by the CPU, such as NOR flash. This saves RAM
1983 space since the text section of the kernel is not loaded from flash
1984 to RAM. Read-write sections, such as the data section and stack,
1985 are still copied to RAM. The XIP kernel is not compressed since
1986 it has to run directly from flash, so it will take more space to
1987 store it. The flash address used to link the kernel object files,
1988 and for storing it, is configuration dependent. Therefore, if you
1989 say Y here, you must know the proper physical address where to
1990 store the kernel image depending on your own flash memory usage.
1991
1992 Also note that the make target becomes "make xipImage" rather than
1993 "make zImage" or "make Image". The final kernel binary to put in
1994 ROM memory will be arch/arm/boot/xipImage.
1995
1996 If unsure, say N.
1997
1998config XIP_PHYS_ADDR
1999 hex "XIP Kernel Physical Location"
2000 depends on XIP_KERNEL
2001 default "0x00080000"
2002 help
2003 This is the physical address in your flash memory the kernel will
2004 be linked for and stored to. This address is dependent on your
2005 own flash usage.
2006
Richard Purdiec587e4a2007-02-06 21:29:00 +01002007config KEXEC
2008 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002009 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002010 help
2011 kexec is a system call that implements the ability to shutdown your
2012 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002013 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002014 you can start any kernel with it, not just Linux.
2015
2016 It is an ongoing process to be certain the hardware in a machine
2017 is properly shutdown, so do not be surprised if this code does not
2018 initially work for you. It may help to enable device hotplugging
2019 support.
2020
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002021config ATAGS_PROC
2022 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002023 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002024 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002025 help
2026 Should the atags used to boot the kernel be exported in an "atags"
2027 file in procfs. Useful with kexec.
2028
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002029config CRASH_DUMP
2030 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002031 help
2032 Generate crash dump after being started by kexec. This should
2033 be normally only set in special crash dump kernels which are
2034 loaded in the main kernel with kexec-tools into a specially
2035 reserved region and then later executed after a crash by
2036 kdump/kexec. The crash dump kernel must be compiled to a
2037 memory address not used by the main kernel
2038
2039 For more details see Documentation/kdump/kdump.txt
2040
Eric Miaoe69edc792010-07-05 15:56:50 +02002041config AUTO_ZRELADDR
2042 bool "Auto calculation of the decompressed kernel image address"
2043 depends on !ZBOOT_ROM && !ARCH_U300
2044 help
2045 ZRELADDR is the physical address where the decompressed kernel
2046 image will be placed. If AUTO_ZRELADDR is selected, the address
2047 will be determined at run-time by masking the current IP with
2048 0xf8000000. This assumes the zImage being placed in the first 128MB
2049 from start of memory.
2050
Linus Torvalds1da177e2005-04-16 15:20:36 -07002051endmenu
2052
Russell Kingac9d7ef2008-08-18 17:26:00 +01002053menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002054
Ben Dooks89c52ed2009-07-30 23:23:24 +01002055if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002056source "drivers/cpufreq/Kconfig"
2057
Ben Dooks9d56c022009-07-30 23:23:25 +01002058config CPU_FREQ_S3C
2059 bool
2060 help
2061 Internal configuration node for common cpufreq on Samsung SoC
2062
2063config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002064 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002065 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002066 select CPU_FREQ_S3C
2067 help
2068 This enables the CPUfreq driver for the Samsung S3C24XX family
2069 of CPUs.
2070
2071 For details, take a look at <file:Documentation/cpu-freq>.
2072
2073 If in doubt, say N.
2074
2075config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002076 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002077 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002078 help
2079 Compile in support for changing the PLL frequency from the
2080 S3C24XX series CPUfreq driver. The PLL takes time to settle
2081 after a frequency change, so by default it is not enabled.
2082
2083 This also means that the PLL tables for the selected CPU(s) will
2084 be built which may increase the size of the kernel image.
2085
2086config CPU_FREQ_S3C24XX_DEBUG
2087 bool "Debug CPUfreq Samsung driver core"
2088 depends on CPU_FREQ_S3C24XX
2089 help
2090 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2091
2092config CPU_FREQ_S3C24XX_IODEBUG
2093 bool "Debug CPUfreq Samsung driver IO timing"
2094 depends on CPU_FREQ_S3C24XX
2095 help
2096 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2097
Ben Dookse6d197a2009-07-30 23:23:42 +01002098config CPU_FREQ_S3C24XX_DEBUGFS
2099 bool "Export debugfs for CPUFreq"
2100 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2101 help
2102 Export status information via debugfs.
2103
Linus Torvalds1da177e2005-04-16 15:20:36 -07002104endif
2105
Russell Kingac9d7ef2008-08-18 17:26:00 +01002106source "drivers/cpuidle/Kconfig"
2107
2108endmenu
2109
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110menu "Floating point emulation"
2111
2112comment "At least one emulation must be selected"
2113
2114config FPE_NWFPE
2115 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002116 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002117 ---help---
2118 Say Y to include the NWFPE floating point emulator in the kernel.
2119 This is necessary to run most binaries. Linux does not currently
2120 support floating point hardware so you need to say Y here even if
2121 your machine has an FPA or floating point co-processor podule.
2122
2123 You may say N here if you are going to load the Acorn FPEmulator
2124 early in the bootup.
2125
2126config FPE_NWFPE_XP
2127 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002128 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002129 help
2130 Say Y to include 80-bit support in the kernel floating-point
2131 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2132 Note that gcc does not generate 80-bit operations by default,
2133 so in most cases this option only enlarges the size of the
2134 floating point emulator without any good reason.
2135
2136 You almost surely want to say N here.
2137
2138config FPE_FASTFPE
2139 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002140 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002141 ---help---
2142 Say Y here to include the FAST floating point emulator in the kernel.
2143 This is an experimental much faster emulator which now also has full
2144 precision for the mantissa. It does not support any exceptions.
2145 It is very simple, and approximately 3-6 times faster than NWFPE.
2146
2147 It should be sufficient for most programs. It may be not suitable
2148 for scientific calculations, but you have to check this for yourself.
2149 If you do not feel you need a faster FP emulation you should better
2150 choose NWFPE.
2151
2152config VFP
2153 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002154 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002155 help
2156 Say Y to include VFP support code in the kernel. This is needed
2157 if your hardware includes a VFP unit.
2158
2159 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2160 release notes and additional status information.
2161
2162 Say N if your target does not have VFP hardware.
2163
Catalin Marinas25ebee02007-09-25 15:22:24 +01002164config VFPv3
2165 bool
2166 depends on VFP
2167 default y if CPU_V7
2168
Catalin Marinasb5872db2008-01-10 19:16:17 +01002169config NEON
2170 bool "Advanced SIMD (NEON) Extension support"
2171 depends on VFPv3 && CPU_V7
2172 help
2173 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2174 Extension.
2175
Linus Torvalds1da177e2005-04-16 15:20:36 -07002176endmenu
2177
2178menu "Userspace binary formats"
2179
2180source "fs/Kconfig.binfmt"
2181
2182config ARTHUR
2183 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002184 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002185 help
2186 Say Y here to include the kernel code necessary if you want to run
2187 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2188 experimental; if this sounds frightening, say N and sleep in peace.
2189 You can also say M here to compile this support as a module (which
2190 will be called arthur).
2191
2192endmenu
2193
2194menu "Power management options"
2195
Russell Kingeceab4a2005-11-15 11:31:41 +00002196source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197
Johannes Bergf4cb5702007-12-08 02:14:00 +01002198config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002199 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002200 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002201 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002202 def_bool y
2203
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002204config ARM_CPU_SUSPEND
2205 def_bool PM_SLEEP
2206
Linus Torvalds1da177e2005-04-16 15:20:36 -07002207endmenu
2208
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002209source "net/Kconfig"
2210
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002211source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002212
2213source "fs/Kconfig"
2214
Linus Torvalds1da177e2005-04-16 15:20:36 -07002215source "arch/arm/Kconfig.debug"
2216
2217source "security/Kconfig"
2218
2219source "crypto/Kconfig"
2220
2221source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002222
2223source "arch/arm/kvm/Kconfig"