blob: b1c66a48a454df6ce02fce69cac1021a8a849648 [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
369 select COMMON_CLK
370 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400371 select GENERIC_CLOCKEVENTS
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400372 select MULTI_IRQ_HANDLER
Russell King93e22562012-10-12 14:20:52 +0100373 select NEED_MACH_MEMORY_H
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400374 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100375 help
376 Support for Cirrus Logic 711x/721x/731x based boards.
377
Russell King788c9702009-04-26 14:21:59 +0100378config ARCH_GEMINI
379 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100380 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000381 select ARCH_USES_GETTIMEOFFSET
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
Matt Porter3ad7a422013-03-06 11:15:31 -0500843 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530844 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100845 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100846 help
847 Support for TI's DaVinci platform.
848
Tony Lindgrena0694862013-01-11 11:24:20 -0800849config ARCH_OMAP1
850 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600851 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100852 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100853 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800854 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100855 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200856 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100857 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100858 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800859 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100860 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800861 select HAVE_IDE
862 select IRQ_DOMAIN
863 select NEED_MACH_IO_H if PCCARD
864 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100865 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800866 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800867
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868endchoice
869
Rob Herring387798b2012-09-06 13:41:12 -0500870menu "Multiple platform selection"
871 depends on ARCH_MULTIPLATFORM
872
873comment "CPU Core family selection"
874
875config ARCH_MULTI_V4
876 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500877 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100878 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500879
880config ARCH_MULTI_V4T
881 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500882 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100883 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500884
885config ARCH_MULTI_V5
886 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500887 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100888 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500889
890config ARCH_MULTI_V4_V5
891 bool
892
893config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800894 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500895 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100896 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500897
898config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800899 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500900 default y
901 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100902 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500903
904config ARCH_MULTI_V6_V7
905 bool
906
907config ARCH_MULTI_CPU_AUTO
908 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
909 select ARCH_MULTI_V5
910
911endmenu
912
Russell Kingccf50e22010-03-15 19:03:06 +0000913#
914# This is sorted alphabetically by mach-* pathname. However, plat-*
915# Kconfigs may be included either alphabetically (according to the
916# plat- suffix) or along side the corresponding mach-* source.
917#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200918source "arch/arm/mach-mvebu/Kconfig"
919
Russell King95b8f202010-01-14 11:43:54 +0000920source "arch/arm/mach-at91/Kconfig"
921
Christian Daudt8ac49e02012-11-19 09:46:10 -0800922source "arch/arm/mach-bcm/Kconfig"
923
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600924source "arch/arm/mach-bcm2835/Kconfig"
925
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926source "arch/arm/mach-clps711x/Kconfig"
927
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300928source "arch/arm/mach-cns3xxx/Kconfig"
929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-davinci/Kconfig"
931
932source "arch/arm/mach-dove/Kconfig"
933
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000934source "arch/arm/mach-ep93xx/Kconfig"
935
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936source "arch/arm/mach-footbridge/Kconfig"
937
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200938source "arch/arm/mach-gemini/Kconfig"
939
Rob Herring387798b2012-09-06 13:41:12 -0500940source "arch/arm/mach-highbank/Kconfig"
941
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942source "arch/arm/mach-integrator/Kconfig"
943
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100944source "arch/arm/mach-iop32x/Kconfig"
945
946source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947
Dan Williams285f5fa2006-12-07 02:59:39 +0100948source "arch/arm/mach-iop13xx/Kconfig"
949
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950source "arch/arm/mach-ixp4xx/Kconfig"
951
Russell King95b8f202010-01-14 11:43:54 +0000952source "arch/arm/mach-kirkwood/Kconfig"
953
954source "arch/arm/mach-ks8695/Kconfig"
955
Russell King95b8f202010-01-14 11:43:54 +0000956source "arch/arm/mach-msm/Kconfig"
957
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200958source "arch/arm/mach-mv78xx0/Kconfig"
959
Shawn Guo3995eb82012-09-13 19:48:07 +0800960source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800962source "arch/arm/mach-mxs/Kconfig"
963
Russell King95b8f202010-01-14 11:43:54 +0000964source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800965
Russell King95b8f202010-01-14 11:43:54 +0000966source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000967
Tony Lindgrend48af152005-07-10 19:58:17 +0100968source "arch/arm/plat-omap/Kconfig"
969
970source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971
Tony Lindgren1dbae812005-11-10 14:26:51 +0000972source "arch/arm/mach-omap2/Kconfig"
973
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400974source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400975
Rob Herring387798b2012-09-06 13:41:12 -0500976source "arch/arm/mach-picoxcell/Kconfig"
977
Russell King95b8f202010-01-14 11:43:54 +0000978source "arch/arm/mach-pxa/Kconfig"
979source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980
Russell King95b8f202010-01-14 11:43:54 +0000981source "arch/arm/mach-mmp/Kconfig"
982
983source "arch/arm/mach-realview/Kconfig"
984
985source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300986
Ben Dookscf383672009-11-10 00:14:58 +0000987source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100988
Rob Herring387798b2012-09-06 13:41:12 -0500989source "arch/arm/mach-socfpga/Kconfig"
990
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100991source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100992
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900993source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994
Ben Dooksa08ab632008-10-21 14:06:39 +0100995if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900996source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100997endif
998
Kukjin Kim49b7a492010-09-07 15:47:18 +0900999source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001000
Byungho Min5a7652f2009-06-23 21:39:42 +09001001source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001002
Kukjin Kim170f4e42010-02-24 16:40:44 +09001003source "arch/arm/mach-s5pv210/Kconfig"
1004
Kukjin Kim83014572011-11-06 13:54:56 +09001005source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001006
Russell King882d01f2010-03-02 23:40:15 +00001007source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008
Maxime Ripard3b526342012-11-08 12:40:16 +01001009source "arch/arm/mach-sunxi/Kconfig"
1010
Barry Song156a0992012-08-23 13:41:58 +08001011source "arch/arm/mach-prima2/Kconfig"
1012
Erik Gillingc5f80062010-01-21 16:53:02 -08001013source "arch/arm/mach-tegra/Kconfig"
1014
Russell King95b8f202010-01-14 11:43:54 +00001015source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
Russell King95b8f202010-01-14 11:43:54 +00001017source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001018
1019source "arch/arm/mach-versatile/Kconfig"
1020
Russell Kingceade892010-02-11 21:44:53 +00001021source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001022source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001023
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001024source "arch/arm/mach-virt/Kconfig"
1025
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001026source "arch/arm/mach-vt8500/Kconfig"
1027
wanzongshun7ec80dd2008-12-03 03:55:38 +01001028source "arch/arm/mach-w90x900/Kconfig"
1029
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001030source "arch/arm/mach-zynq/Kconfig"
1031
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032# Definitions to make life easier
1033config ARCH_ACORN
1034 bool
1035
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001036config PLAT_IOP
1037 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001038 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001039
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001040config PLAT_ORION
1041 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001042 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001043 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001044 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001045 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001046
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001047config PLAT_ORION_LEGACY
1048 bool
1049 select PLAT_ORION
1050
Eric Miaobd5ce432009-01-20 12:06:01 +08001051config PLAT_PXA
1052 bool
1053
Russell Kingf4b8b312010-01-14 12:48:06 +00001054config PLAT_VERSATILE
1055 bool
1056
Russell Kinge3887712010-01-14 13:30:16 +00001057config ARM_TIMER_SP804
1058 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001059 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001060 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001061
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062source arch/arm/mm/Kconfig
1063
Russell King958cab02011-12-11 10:04:00 +00001064config ARM_NR_BANKS
1065 int
1066 default 16 if ARCH_EP93XX
1067 default 8
1068
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001069config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001070 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001071 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001072 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001073 help
1074 Enable support for iWMMXt context switching at run time if
1075 running on a CPU that supports it.
1076
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077config XSCALE_PMU
1078 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001079 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080 default y
1081
eric miao52108642010-12-13 09:42:34 +01001082config MULTI_IRQ_HANDLER
1083 bool
1084 help
1085 Allow each machine to specify it's own IRQ handler at run time.
1086
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001087if !MMU
1088source "arch/arm/Kconfig-nommu"
1089endif
1090
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001091config ARM_ERRATA_326103
1092 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1093 depends on CPU_V6
1094 help
1095 Executing a SWP instruction to read-only memory does not set bit 11
1096 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1097 treat the access as a read, preventing a COW from occurring and
1098 causing the faulting task to livelock.
1099
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001100config ARM_ERRATA_411920
1101 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001102 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001103 help
1104 Invalidation of the Instruction Cache operation can
1105 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1106 It does not affect the MPCore. This option enables the ARM Ltd.
1107 recommended workaround.
1108
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001109config ARM_ERRATA_430973
1110 bool "ARM errata: Stale prediction on replaced interworking branch"
1111 depends on CPU_V7
1112 help
1113 This option enables the workaround for the 430973 Cortex-A8
1114 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1115 interworking branch is replaced with another code sequence at the
1116 same virtual address, whether due to self-modifying code or virtual
1117 to physical address re-mapping, Cortex-A8 does not recover from the
1118 stale interworking branch prediction. This results in Cortex-A8
1119 executing the new code sequence in the incorrect ARM or Thumb state.
1120 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1121 and also flushes the branch target cache at every context switch.
1122 Note that setting specific bits in the ACTLR register may not be
1123 available in non-secure mode.
1124
Catalin Marinas855c5512009-04-30 17:06:15 +01001125config ARM_ERRATA_458693
1126 bool "ARM errata: Processor deadlock when a false hazard is created"
1127 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001128 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001129 help
1130 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1131 erratum. For very specific sequences of memory operations, it is
1132 possible for a hazard condition intended for a cache line to instead
1133 be incorrectly associated with a different cache line. This false
1134 hazard might then cause a processor deadlock. The workaround enables
1135 the L1 caching of the NEON accesses and disables the PLD instruction
1136 in the ACTLR register. Note that setting specific bits in the ACTLR
1137 register may not be available in non-secure mode.
1138
Catalin Marinas0516e462009-04-30 17:06:20 +01001139config ARM_ERRATA_460075
1140 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1141 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001142 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001143 help
1144 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1145 erratum. Any asynchronous access to the L2 cache may encounter a
1146 situation in which recent store transactions to the L2 cache are lost
1147 and overwritten with stale memory contents from external memory. The
1148 workaround disables the write-allocate mode for the L2 cache via the
1149 ACTLR register. Note that setting specific bits in the ACTLR register
1150 may not be available in non-secure mode.
1151
Will Deacon9f050272010-09-14 09:51:43 +01001152config ARM_ERRATA_742230
1153 bool "ARM errata: DMB operation may be faulty"
1154 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001155 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001156 help
1157 This option enables the workaround for the 742230 Cortex-A9
1158 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1159 between two write operations may not ensure the correct visibility
1160 ordering of the two writes. This workaround sets a specific bit in
1161 the diagnostic register of the Cortex-A9 which causes the DMB
1162 instruction to behave as a DSB, ensuring the correct behaviour of
1163 the two writes.
1164
Will Deacona672e992010-09-14 09:53:02 +01001165config ARM_ERRATA_742231
1166 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1167 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001168 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001169 help
1170 This option enables the workaround for the 742231 Cortex-A9
1171 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1172 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1173 accessing some data located in the same cache line, may get corrupted
1174 data due to bad handling of the address hazard when the line gets
1175 replaced from one of the CPUs at the same time as another CPU is
1176 accessing it. This workaround sets specific bits in the diagnostic
1177 register of the Cortex-A9 which reduces the linefill issuing
1178 capabilities of the processor.
1179
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001180config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001181 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001182 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001183 help
1184 The PL310 L2 cache controller implements three types of Clean &
1185 Invalidate maintenance operations: by Physical Address
1186 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1187 They are architecturally defined to behave as the execution of a
1188 clean operation followed immediately by an invalidate operation,
1189 both performing to the same memory location. This functionality
1190 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001191 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001192
1193config ARM_ERRATA_720789
1194 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001195 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001196 help
1197 This option enables the workaround for the 720789 Cortex-A9 (prior to
1198 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1199 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1200 As a consequence of this erratum, some TLB entries which should be
1201 invalidated are not, resulting in an incoherency in the system page
1202 tables. The workaround changes the TLB flushing routines to invalidate
1203 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001204
Russell King1f0090a2011-03-16 23:35:25 +00001205config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001206 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001207 depends on CACHE_L2X0
1208 help
1209 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1210 operation (offset 0x7FC). This operation runs in background so that
1211 PL310 can handle normal accesses while it is in progress. Under very
1212 rare circumstances, due to this erratum, write data can be lost when
1213 PL310 treats a cacheable write transaction during a Clean &
1214 Invalidate by Way operation.
1215
Will Deacon475d92f2010-09-28 14:02:02 +01001216config ARM_ERRATA_743622
1217 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1218 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001219 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001220 help
1221 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001222 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001223 optimisation in the Cortex-A9 Store Buffer may lead to data
1224 corruption. This workaround sets a specific bit in the diagnostic
1225 register of the Cortex-A9 which disables the Store Buffer
1226 optimisation, preventing the defect from occurring. This has no
1227 visible impact on the overall performance or power consumption of the
1228 processor.
1229
Will Deacon9a27c272011-02-18 16:36:35 +01001230config ARM_ERRATA_751472
1231 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001232 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001233 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001234 help
1235 This option enables the workaround for the 751472 Cortex-A9 (prior
1236 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1237 completion of a following broadcasted operation if the second
1238 operation is received by a CPU before the ICIALLUIS has completed,
1239 potentially leading to corrupted entries in the cache or TLB.
1240
Will Deaconfa0ce402011-11-14 17:24:57 +01001241config PL310_ERRATA_753970
1242 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001243 depends on CACHE_PL310
1244 help
1245 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1246
1247 Under some condition the effect of cache sync operation on
1248 the store buffer still remains when the operation completes.
1249 This means that the store buffer is always asked to drain and
1250 this prevents it from merging any further writes. The workaround
1251 is to replace the normal offset of cache sync operation (0x730)
1252 by another offset targeting an unmapped PL310 register 0x740.
1253 This has the same effect as the cache sync operation: store buffer
1254 drain and waiting for all buffers empty.
1255
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001256config ARM_ERRATA_754322
1257 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1258 depends on CPU_V7
1259 help
1260 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1261 r3p*) erratum. A speculative memory access may cause a page table walk
1262 which starts prior to an ASID switch but completes afterwards. This
1263 can populate the micro-TLB with a stale entry which may be hit with
1264 the new ASID. This workaround places two dsb instructions in the mm
1265 switching code so that no page table walks can cross the ASID switch.
1266
Will Deacon5dab26af2011-03-04 12:38:54 +01001267config ARM_ERRATA_754327
1268 bool "ARM errata: no automatic Store Buffer drain"
1269 depends on CPU_V7 && SMP
1270 help
1271 This option enables the workaround for the 754327 Cortex-A9 (prior to
1272 r2p0) erratum. The Store Buffer does not have any automatic draining
1273 mechanism and therefore a livelock may occur if an external agent
1274 continuously polls a memory location waiting to observe an update.
1275 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1276 written polling loops from denying visibility of updates to memory.
1277
Catalin Marinas145e10e2011-08-15 11:04:41 +01001278config ARM_ERRATA_364296
1279 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1280 depends on CPU_V6 && !SMP
1281 help
1282 This options enables the workaround for the 364296 ARM1136
1283 r0p2 erratum (possible cache data corruption with
1284 hit-under-miss enabled). It sets the undocumented bit 31 in
1285 the auxiliary control register and the FI bit in the control
1286 register, thus disabling hit-under-miss without putting the
1287 processor into full low interrupt latency mode. ARM11MPCore
1288 is not affected.
1289
Will Deaconf630c1b2011-09-15 11:45:15 +01001290config ARM_ERRATA_764369
1291 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1292 depends on CPU_V7 && SMP
1293 help
1294 This option enables the workaround for erratum 764369
1295 affecting Cortex-A9 MPCore with two or more processors (all
1296 current revisions). Under certain timing circumstances, a data
1297 cache line maintenance operation by MVA targeting an Inner
1298 Shareable memory region may fail to proceed up to either the
1299 Point of Coherency or to the Point of Unification of the
1300 system. This workaround adds a DSB instruction before the
1301 relevant cache maintenance functions and sets a specific bit
1302 in the diagnostic control register of the SCU.
1303
Will Deacon11ed0ba2011-11-14 17:24:58 +01001304config PL310_ERRATA_769419
1305 bool "PL310 errata: no automatic Store Buffer drain"
1306 depends on CACHE_L2X0
1307 help
1308 On revisions of the PL310 prior to r3p2, the Store Buffer does
1309 not automatically drain. This can cause normal, non-cacheable
1310 writes to be retained when the memory system is idle, leading
1311 to suboptimal I/O performance for drivers using coherent DMA.
1312 This option adds a write barrier to the cpu_idle loop so that,
1313 on systems with an outer cache, the store buffer is drained
1314 explicitly.
1315
Simon Horman7253b852012-09-28 02:12:45 +01001316config ARM_ERRATA_775420
1317 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1318 depends on CPU_V7
1319 help
1320 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1321 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1322 operation aborts with MMU exception, it might cause the processor
1323 to deadlock. This workaround puts DSB before executing ISB if
1324 an abort may occur on cache maintenance.
1325
Catalin Marinas93dc6882013-03-26 23:35:04 +01001326config ARM_ERRATA_798181
1327 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1328 depends on CPU_V7 && SMP
1329 help
1330 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1331 adequately shooting down all use of the old entries. This
1332 option enables the Linux kernel workaround for this erratum
1333 which sends an IPI to the CPUs that are running the same ASID
1334 as the one being invalidated.
1335
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336endmenu
1337
1338source "arch/arm/common/Kconfig"
1339
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340menu "Bus support"
1341
1342config ARM_AMBA
1343 bool
1344
1345config ISA
1346 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001347 help
1348 Find out whether you have ISA slots on your motherboard. ISA is the
1349 name of a bus system, i.e. the way the CPU talks to the other stuff
1350 inside your box. Other bus systems are PCI, EISA, MicroChannel
1351 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1352 newer boards don't support it. If you have ISA, say Y, otherwise N.
1353
Russell King065909b2006-01-04 15:44:16 +00001354# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355config ISA_DMA
1356 bool
Russell King065909b2006-01-04 15:44:16 +00001357 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358
Russell King065909b2006-01-04 15:44:16 +00001359# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001360config ISA_DMA_API
1361 bool
Al Viro5cae8412005-05-04 05:39:22 +01001362
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001364 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 help
1366 Find out whether you have a PCI motherboard. PCI is the name of a
1367 bus system, i.e. the way the CPU talks to the other stuff inside
1368 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1369 VESA. If you have PCI, say Y, otherwise N.
1370
Anton Vorontsov52882172010-04-19 13:20:49 +01001371config PCI_DOMAINS
1372 bool
1373 depends on PCI
1374
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001375config PCI_NANOENGINE
1376 bool "BSE nanoEngine PCI support"
1377 depends on SA1100_NANOENGINE
1378 help
1379 Enable PCI on the BSE nanoEngine board.
1380
Matthew Wilcox36e23592007-07-10 10:54:40 -06001381config PCI_SYSCALL
1382 def_bool PCI
1383
Linus Torvalds1da177e2005-04-16 15:20:36 -07001384# Select the host bridge type
1385config PCI_HOST_VIA82C505
1386 bool
1387 depends on PCI && ARCH_SHARK
1388 default y
1389
Mike Rapoporta0113a92007-11-25 08:55:34 +01001390config PCI_HOST_ITE8152
1391 bool
1392 depends on PCI && MACH_ARMCORE
1393 default y
1394 select DMABOUNCE
1395
Linus Torvalds1da177e2005-04-16 15:20:36 -07001396source "drivers/pci/Kconfig"
1397
1398source "drivers/pcmcia/Kconfig"
1399
1400endmenu
1401
1402menu "Kernel Features"
1403
Dave Martin3b556582011-12-07 15:38:04 +00001404config HAVE_SMP
1405 bool
1406 help
1407 This option should be selected by machines which have an SMP-
1408 capable CPU.
1409
1410 The only effect of this option is to make the SMP-related
1411 options available to the user for configuration.
1412
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001414 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001415 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001416 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001417 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001418 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +01001419 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001420 help
1421 This enables support for systems with more than one CPU. If you have
1422 a system with only one CPU, like most personal computers, say N. If
1423 you have a system with more than one CPU, say Y.
1424
1425 If you say N here, the kernel will run on single and multiprocessor
1426 machines, but will use only one CPU of a multiprocessor machine. If
1427 you say Y here, the kernel will run on many, but not all, single
1428 processor machines. On a single processor machine, the kernel will
1429 run faster if you say N here.
1430
Paul Bolle395cf962011-08-15 02:02:26 +02001431 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001433 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001434
1435 If you don't know what to do here, say N.
1436
Russell Kingf00ec482010-09-04 10:47:48 +01001437config SMP_ON_UP
1438 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001439 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001440 default y
1441 help
1442 SMP kernels contain instructions which fail on non-SMP processors.
1443 Enabling this option allows the kernel to modify itself to make
1444 these instructions safe. Disabling it allows about 1K of space
1445 savings.
1446
1447 If you don't know what to do here, say Y.
1448
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001449config ARM_CPU_TOPOLOGY
1450 bool "Support cpu topology definition"
1451 depends on SMP && CPU_V7
1452 default y
1453 help
1454 Support ARM cpu topology definition. The MPIDR register defines
1455 affinity between processors which is then used to describe the cpu
1456 topology of an ARM System.
1457
1458config SCHED_MC
1459 bool "Multi-core scheduler support"
1460 depends on ARM_CPU_TOPOLOGY
1461 help
1462 Multi-core scheduler support improves the CPU scheduler's decision
1463 making when dealing with multi-core CPU chips at a cost of slightly
1464 increased overhead in some places. If unsure say N here.
1465
1466config SCHED_SMT
1467 bool "SMT scheduler support"
1468 depends on ARM_CPU_TOPOLOGY
1469 help
1470 Improves the CPU scheduler's decision making when dealing with
1471 MultiThreading at a cost of slightly increased overhead in some
1472 places. If unsure say N here.
1473
Russell Kinga8cbcd92009-05-16 11:51:14 +01001474config HAVE_ARM_SCU
1475 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001476 help
1477 This option enables support for the ARM system coherency unit
1478
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001479config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001480 bool "Architected timer support"
1481 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001482 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001483 help
1484 This option enables support for the ARM architected timer
1485
Russell Kingf32f4ce2009-05-16 12:14:21 +01001486config HAVE_ARM_TWD
1487 bool
1488 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001489 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001490 help
1491 This options enables support for the ARM timer and watchdog unit
1492
Nicolas Pitree8db2882012-04-12 02:45:22 -04001493config MCPM
1494 bool "Multi-Cluster Power Management"
1495 depends on CPU_V7 && SMP
1496 help
1497 This option provides the common power management infrastructure
1498 for (multi-)cluster based systems, such as big.LITTLE based
1499 systems.
1500
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001501choice
1502 prompt "Memory split"
1503 default VMSPLIT_3G
1504 help
1505 Select the desired split between kernel and user memory.
1506
1507 If you are not absolutely sure what you are doing, leave this
1508 option alone!
1509
1510 config VMSPLIT_3G
1511 bool "3G/1G user/kernel split"
1512 config VMSPLIT_2G
1513 bool "2G/2G user/kernel split"
1514 config VMSPLIT_1G
1515 bool "1G/3G user/kernel split"
1516endchoice
1517
1518config PAGE_OFFSET
1519 hex
1520 default 0x40000000 if VMSPLIT_1G
1521 default 0x80000000 if VMSPLIT_2G
1522 default 0xC0000000
1523
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524config NR_CPUS
1525 int "Maximum number of CPUs (2-32)"
1526 range 2 32
1527 depends on SMP
1528 default "4"
1529
Russell Kinga054a812005-11-02 22:24:33 +00001530config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001531 bool "Support for hot-pluggable CPUs"
1532 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001533 help
1534 Say Y here to experiment with turning CPUs off and on. CPUs
1535 can be controlled through /sys/devices/system/cpu.
1536
Will Deacon2bdd4242012-12-12 19:20:52 +00001537config ARM_PSCI
1538 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1539 depends on CPU_V7
1540 help
1541 Say Y here if you want Linux to communicate with system firmware
1542 implementing the PSCI specification for CPU-centric power
1543 management operations described in ARM document number ARM DEN
1544 0022A ("Power State Coordination Interface System Software on
1545 ARM processors").
1546
Russell King37ee16a2005-11-08 19:08:05 +00001547config LOCAL_TIMERS
1548 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001549 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001550 default y
1551 help
1552 Enable support for local timers on SMP platforms, rather then the
1553 legacy IPI broadcast method. Local timers allows the system
1554 accounting to be spread across the timer interval, preventing a
1555 "thundering herd" at every timer tick.
1556
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001557# The GPIO number here must be sorted by descending number. In case of
1558# a multiplatform kernel, we just want the highest value required by the
1559# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001560config ARCH_NR_GPIO
1561 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001562 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301563 default 512 if SOC_OMAP5
Olof Johansson06b851e2013-04-02 18:33:58 -07001564 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001565 default 352 if ARCH_VT8500
1566 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001567 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001568 default 0
1569 help
1570 Maximum number of GPIOs in the system.
1571
1572 If unsure, leave the default value.
1573
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001574source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575
Russell Kingf8065812006-03-02 22:41:59 +00001576config HZ
1577 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001578 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001579 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001580 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001581 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001582 default 100
1583
Russell Kingb28748f2013-02-17 14:40:33 +00001584config SCHED_HRTICK
1585 def_bool HIGH_RES_TIMERS
1586
Catalin Marinas16c79652009-07-24 12:33:02 +01001587config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001588 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Russell King00b7ded2012-10-22 22:54:30 +01001589 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001590 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001591 select AEABI
1592 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001593 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001594 help
1595 By enabling this option, the kernel will be compiled in
1596 Thumb-2 mode. A compiler/assembler that understand the unified
1597 ARM-Thumb syntax is needed.
1598
1599 If unsure, say N.
1600
Dave Martin6f685c52011-03-03 11:41:12 +01001601config THUMB2_AVOID_R_ARM_THM_JUMP11
1602 bool "Work around buggy Thumb-2 short branch relocations in gas"
1603 depends on THUMB2_KERNEL && MODULES
1604 default y
1605 help
1606 Various binutils versions can resolve Thumb-2 branches to
1607 locally-defined, preemptible global symbols as short-range "b.n"
1608 branch instructions.
1609
1610 This is a problem, because there's no guarantee the final
1611 destination of the symbol, or any candidate locations for a
1612 trampoline, are within range of the branch. For this reason, the
1613 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1614 relocation in modules at all, and it makes little sense to add
1615 support.
1616
1617 The symptom is that the kernel fails with an "unsupported
1618 relocation" error when loading some modules.
1619
1620 Until fixed tools are available, passing
1621 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1622 code which hits this problem, at the cost of a bit of extra runtime
1623 stack usage in some cases.
1624
1625 The problem is described in more detail at:
1626 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1627
1628 Only Thumb-2 kernels are affected.
1629
1630 Unless you are sure your tools don't have this problem, say Y.
1631
Catalin Marinas0becb082009-07-24 12:32:53 +01001632config ARM_ASM_UNIFIED
1633 bool
1634
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001635config AEABI
1636 bool "Use the ARM EABI to compile the kernel"
1637 help
1638 This option allows for the kernel to be compiled using the latest
1639 ARM ABI (aka EABI). This is only useful if you are using a user
1640 space environment that is also compiled with EABI.
1641
1642 Since there are major incompatibilities between the legacy ABI and
1643 EABI, especially with regard to structure member alignment, this
1644 option also changes the kernel syscall calling convention to
1645 disambiguate both ABIs and allow for backward compatibility support
1646 (selected with CONFIG_OABI_COMPAT).
1647
1648 To use this you need GCC version 4.0.0 or later.
1649
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001650config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001651 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001652 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001653 default y
1654 help
1655 This option preserves the old syscall interface along with the
1656 new (ARM EABI) one. It also provides a compatibility layer to
1657 intercept syscalls that have structure arguments which layout
1658 in memory differs between the legacy ABI and the new ARM EABI
1659 (only for non "thumb" binaries). This option adds a tiny
1660 overhead to all syscalls and produces a slightly larger kernel.
1661 If you know you'll be using only pure EABI user space then you
1662 can say N here. If this option is not selected and you attempt
1663 to execute a legacy ABI binary then the result will be
1664 UNPREDICTABLE (in fact it can be predicted that it won't work
1665 at all). If in doubt say Y.
1666
Mel Gormaneb335752009-05-13 17:34:48 +01001667config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001668 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001669
Russell King05944d72006-11-30 20:43:51 +00001670config ARCH_SPARSEMEM_ENABLE
1671 bool
1672
Russell King07a2f732008-10-01 21:39:58 +01001673config ARCH_SPARSEMEM_DEFAULT
1674 def_bool ARCH_SPARSEMEM_ENABLE
1675
Russell King05944d72006-11-30 20:43:51 +00001676config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001677 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001678
Will Deacon7b7bf492011-05-19 13:21:14 +01001679config HAVE_ARCH_PFN_VALID
1680 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1681
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001682config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001683 bool "High Memory Support"
1684 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001685 help
1686 The address space of ARM processors is only 4 Gigabytes large
1687 and it has to accommodate user address space, kernel address
1688 space as well as some memory mapped IO. That means that, if you
1689 have a large amount of physical memory and/or IO, not all of the
1690 memory can be "permanently mapped" by the kernel. The physical
1691 memory that is not permanently mapped is called "high memory".
1692
1693 Depending on the selected kernel/user memory split, minimum
1694 vmalloc space and actual amount of RAM, you may not need this
1695 option which should result in a slightly faster kernel.
1696
1697 If unsure, say n.
1698
Russell King65cec8e2009-08-17 20:02:06 +01001699config HIGHPTE
1700 bool "Allocate 2nd-level pagetables from highmem"
1701 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001702
Jamie Iles1b8873a2010-02-02 20:25:44 +01001703config HW_PERF_EVENTS
1704 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001705 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001706 default y
1707 help
1708 Enable hardware performance counter support for perf events. If
1709 disabled, perf events will use software events only.
1710
Dave Hansen3f22ab22005-06-23 00:07:43 -07001711source "mm/Kconfig"
1712
Magnus Dammc1b2d972010-07-05 10:00:11 +01001713config FORCE_MAX_ZONEORDER
1714 int "Maximum zone order" if ARCH_SHMOBILE
1715 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001716 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001717 default "9" if SA1111
1718 default "11"
1719 help
1720 The kernel memory allocator divides physically contiguous memory
1721 blocks into "zones", where each zone is a power of two number of
1722 pages. This option selects the largest power of two that the kernel
1723 keeps in the memory allocator. If you need to allocate very large
1724 blocks of physically contiguous memory, then you may need to
1725 increase this value.
1726
1727 This config option is actually maximum order plus one. For example,
1728 a value of 11 means that the largest free memory block is 2^10 pages.
1729
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730config ALIGNMENT_TRAP
1731 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001732 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001734 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001736 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001737 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1738 address divisible by 4. On 32-bit ARM processors, these non-aligned
1739 fetch/store instructions will be emulated in software if you say
1740 here, which has a severe performance impact. This is necessary for
1741 correct operation of some network protocols. With an IP-only
1742 configuration it is safe to say N, otherwise say Y.
1743
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001744config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001745 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1746 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001747 default y if CPU_FEROCEON
1748 help
1749 Implement faster copy_to_user and clear_user methods for CPU
1750 cores where a 8-word STM instruction give significantly higher
1751 memory write throughput than a sequence of individual 32bit stores.
1752
1753 A possible side effect is a slight increase in scheduling latency
1754 between threads sharing the same address space if they invoke
1755 such copy operations with large buffers.
1756
1757 However, if the CPU data cache is using a write-allocate mode,
1758 this option is unlikely to provide any performance gain.
1759
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001760config SECCOMP
1761 bool
1762 prompt "Enable seccomp to safely compute untrusted bytecode"
1763 ---help---
1764 This kernel feature is useful for number crunching applications
1765 that may need to compute untrusted bytecode during their
1766 execution. By using pipes or other transports made available to
1767 the process as file descriptors supporting the read/write
1768 syscalls, it's possible to isolate those applications in
1769 their own address space using seccomp. Once seccomp is
1770 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1771 and the task is only allowed to execute a few safe syscalls
1772 defined by each seccomp mode.
1773
Nicolas Pitrec743f382010-05-24 23:55:42 -04001774config CC_STACKPROTECTOR
1775 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1776 help
1777 This option turns on the -fstack-protector GCC feature. This
1778 feature puts, at the beginning of functions, a canary value on
1779 the stack just before the return address, and validates
1780 the value just before actually returning. Stack based buffer
1781 overflows (that need to overwrite this return address) now also
1782 overwrite the canary, which gets detected and the attack is then
1783 neutralized via a kernel panic.
1784 This feature requires gcc version 4.2 or above.
1785
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001786config XEN_DOM0
1787 def_bool y
1788 depends on XEN
1789
1790config XEN
1791 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001792 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001793 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001794 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001795 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001796 help
1797 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1798
Linus Torvalds1da177e2005-04-16 15:20:36 -07001799endmenu
1800
1801menu "Boot options"
1802
Grant Likely9eb8f672011-04-28 14:27:20 -06001803config USE_OF
1804 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001805 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001806 select OF
1807 select OF_EARLY_FLATTREE
1808 help
1809 Include support for flattened device tree machine descriptions.
1810
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001811config ATAGS
1812 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1813 default y
1814 help
1815 This is the traditional way of passing data to the kernel at boot
1816 time. If you are solely relying on the flattened device tree (or
1817 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1818 to remove ATAGS support from your kernel binary. If unsure,
1819 leave this to y.
1820
1821config DEPRECATED_PARAM_STRUCT
1822 bool "Provide old way to pass kernel parameters"
1823 depends on ATAGS
1824 help
1825 This was deprecated in 2001 and announced to live on for 5 years.
1826 Some old boot loaders still use this way.
1827
Linus Torvalds1da177e2005-04-16 15:20:36 -07001828# Compressed boot loader in ROM. Yes, we really want to ask about
1829# TEXT and BSS so we preserve their values in the config files.
1830config ZBOOT_ROM_TEXT
1831 hex "Compressed ROM boot loader base address"
1832 default "0"
1833 help
1834 The physical address at which the ROM-able zImage is to be
1835 placed in the target. Platforms which normally make use of
1836 ROM-able zImage formats normally set this to a suitable
1837 value in their defconfig file.
1838
1839 If ZBOOT_ROM is not enabled, this has no effect.
1840
1841config ZBOOT_ROM_BSS
1842 hex "Compressed ROM boot loader BSS address"
1843 default "0"
1844 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001845 The base address of an area of read/write memory in the target
1846 for the ROM-able zImage which must be available while the
1847 decompressor is running. It must be large enough to hold the
1848 entire decompressed kernel plus an additional 128 KiB.
1849 Platforms which normally make use of ROM-able zImage formats
1850 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001851
1852 If ZBOOT_ROM is not enabled, this has no effect.
1853
1854config ZBOOT_ROM
1855 bool "Compressed boot loader in ROM/flash"
1856 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1857 help
1858 Say Y here if you intend to execute your compressed kernel image
1859 (zImage) directly from ROM or flash. If unsure, say N.
1860
Simon Horman090ab3f2011-04-26 06:29:53 +01001861choice
1862 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001863 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001864 default ZBOOT_ROM_NONE
1865 help
1866 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001867 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001868 kernel image to an MMC or SD card and boot the kernel straight
1869 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001870 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001871 rest the kernel image to RAM.
1872
1873config ZBOOT_ROM_NONE
1874 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1875 help
1876 Do not load image from SD or MMC
1877
Simon Hormanf45b1142011-01-11 04:01:08 +01001878config ZBOOT_ROM_MMCIF
1879 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001880 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001881 Load image from MMCIF hardware block.
1882
1883config ZBOOT_ROM_SH_MOBILE_SDHI
1884 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1885 help
1886 Load image from SDHI hardware block
1887
1888endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001889
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001890config ARM_APPENDED_DTB
1891 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001892 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001893 help
1894 With this option, the boot code will look for a device tree binary
1895 (DTB) appended to zImage
1896 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1897
1898 This is meant as a backward compatibility convenience for those
1899 systems with a bootloader that can't be upgraded to accommodate
1900 the documented boot protocol using a device tree.
1901
1902 Beware that there is very little in terms of protection against
1903 this option being confused by leftover garbage in memory that might
1904 look like a DTB header after a reboot if no actual DTB is appended
1905 to zImage. Do not leave this option active in a production kernel
1906 if you don't intend to always append a DTB. Proper passing of the
1907 location into r2 of a bootloader provided DTB is always preferable
1908 to this option.
1909
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001910config ARM_ATAG_DTB_COMPAT
1911 bool "Supplement the appended DTB with traditional ATAG information"
1912 depends on ARM_APPENDED_DTB
1913 help
1914 Some old bootloaders can't be updated to a DTB capable one, yet
1915 they provide ATAGs with memory configuration, the ramdisk address,
1916 the kernel cmdline string, etc. Such information is dynamically
1917 provided by the bootloader and can't always be stored in a static
1918 DTB. To allow a device tree enabled kernel to be used with such
1919 bootloaders, this option allows zImage to extract the information
1920 from the ATAG list and store it at run time into the appended DTB.
1921
Genoud Richardd0f34a112012-06-26 16:37:59 +01001922choice
1923 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1924 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1925
1926config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1927 bool "Use bootloader kernel arguments if available"
1928 help
1929 Uses the command-line options passed by the boot loader instead of
1930 the device tree bootargs property. If the boot loader doesn't provide
1931 any, the device tree bootargs property will be used.
1932
1933config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1934 bool "Extend with bootloader kernel arguments"
1935 help
1936 The command-line arguments provided by the boot loader will be
1937 appended to the the device tree bootargs property.
1938
1939endchoice
1940
Linus Torvalds1da177e2005-04-16 15:20:36 -07001941config CMDLINE
1942 string "Default kernel command string"
1943 default ""
1944 help
1945 On some architectures (EBSA110 and CATS), there is currently no way
1946 for the boot loader to pass arguments to the kernel. For these
1947 architectures, you should supply some command-line options at build
1948 time by entering them here. As a minimum, you should specify the
1949 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1950
Victor Boivie4394c122011-05-04 17:07:55 +01001951choice
1952 prompt "Kernel command line type" if CMDLINE != ""
1953 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001954 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001955
1956config CMDLINE_FROM_BOOTLOADER
1957 bool "Use bootloader kernel arguments if available"
1958 help
1959 Uses the command-line options passed by the boot loader. If
1960 the boot loader doesn't provide any, the default kernel command
1961 string provided in CMDLINE will be used.
1962
1963config CMDLINE_EXTEND
1964 bool "Extend bootloader kernel arguments"
1965 help
1966 The command-line arguments provided by the boot loader will be
1967 appended to the default kernel command string.
1968
Alexander Holler92d20402010-02-16 19:04:53 +01001969config CMDLINE_FORCE
1970 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001971 help
1972 Always use the default kernel command string, even if the boot
1973 loader passes other arguments to the kernel.
1974 This is useful if you cannot or don't want to change the
1975 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001976endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001977
Linus Torvalds1da177e2005-04-16 15:20:36 -07001978config XIP_KERNEL
1979 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05001980 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001981 help
1982 Execute-In-Place allows the kernel to run from non-volatile storage
1983 directly addressable by the CPU, such as NOR flash. This saves RAM
1984 space since the text section of the kernel is not loaded from flash
1985 to RAM. Read-write sections, such as the data section and stack,
1986 are still copied to RAM. The XIP kernel is not compressed since
1987 it has to run directly from flash, so it will take more space to
1988 store it. The flash address used to link the kernel object files,
1989 and for storing it, is configuration dependent. Therefore, if you
1990 say Y here, you must know the proper physical address where to
1991 store the kernel image depending on your own flash memory usage.
1992
1993 Also note that the make target becomes "make xipImage" rather than
1994 "make zImage" or "make Image". The final kernel binary to put in
1995 ROM memory will be arch/arm/boot/xipImage.
1996
1997 If unsure, say N.
1998
1999config XIP_PHYS_ADDR
2000 hex "XIP Kernel Physical Location"
2001 depends on XIP_KERNEL
2002 default "0x00080000"
2003 help
2004 This is the physical address in your flash memory the kernel will
2005 be linked for and stored to. This address is dependent on your
2006 own flash usage.
2007
Richard Purdiec587e4a2007-02-06 21:29:00 +01002008config KEXEC
2009 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002010 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002011 help
2012 kexec is a system call that implements the ability to shutdown your
2013 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002014 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002015 you can start any kernel with it, not just Linux.
2016
2017 It is an ongoing process to be certain the hardware in a machine
2018 is properly shutdown, so do not be surprised if this code does not
2019 initially work for you. It may help to enable device hotplugging
2020 support.
2021
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002022config ATAGS_PROC
2023 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002024 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002025 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002026 help
2027 Should the atags used to boot the kernel be exported in an "atags"
2028 file in procfs. Useful with kexec.
2029
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002030config CRASH_DUMP
2031 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002032 help
2033 Generate crash dump after being started by kexec. This should
2034 be normally only set in special crash dump kernels which are
2035 loaded in the main kernel with kexec-tools into a specially
2036 reserved region and then later executed after a crash by
2037 kdump/kexec. The crash dump kernel must be compiled to a
2038 memory address not used by the main kernel
2039
2040 For more details see Documentation/kdump/kdump.txt
2041
Eric Miaoe69edc792010-07-05 15:56:50 +02002042config AUTO_ZRELADDR
2043 bool "Auto calculation of the decompressed kernel image address"
2044 depends on !ZBOOT_ROM && !ARCH_U300
2045 help
2046 ZRELADDR is the physical address where the decompressed kernel
2047 image will be placed. If AUTO_ZRELADDR is selected, the address
2048 will be determined at run-time by masking the current IP with
2049 0xf8000000. This assumes the zImage being placed in the first 128MB
2050 from start of memory.
2051
Linus Torvalds1da177e2005-04-16 15:20:36 -07002052endmenu
2053
Russell Kingac9d7ef2008-08-18 17:26:00 +01002054menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055
Ben Dooks89c52ed2009-07-30 23:23:24 +01002056if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057source "drivers/cpufreq/Kconfig"
2058
Ben Dooks9d56c022009-07-30 23:23:25 +01002059config CPU_FREQ_S3C
2060 bool
2061 help
2062 Internal configuration node for common cpufreq on Samsung SoC
2063
2064config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002065 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002066 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002067 select CPU_FREQ_S3C
2068 help
2069 This enables the CPUfreq driver for the Samsung S3C24XX family
2070 of CPUs.
2071
2072 For details, take a look at <file:Documentation/cpu-freq>.
2073
2074 If in doubt, say N.
2075
2076config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002077 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002078 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002079 help
2080 Compile in support for changing the PLL frequency from the
2081 S3C24XX series CPUfreq driver. The PLL takes time to settle
2082 after a frequency change, so by default it is not enabled.
2083
2084 This also means that the PLL tables for the selected CPU(s) will
2085 be built which may increase the size of the kernel image.
2086
2087config CPU_FREQ_S3C24XX_DEBUG
2088 bool "Debug CPUfreq Samsung driver core"
2089 depends on CPU_FREQ_S3C24XX
2090 help
2091 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2092
2093config CPU_FREQ_S3C24XX_IODEBUG
2094 bool "Debug CPUfreq Samsung driver IO timing"
2095 depends on CPU_FREQ_S3C24XX
2096 help
2097 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2098
Ben Dookse6d197a2009-07-30 23:23:42 +01002099config CPU_FREQ_S3C24XX_DEBUGFS
2100 bool "Export debugfs for CPUFreq"
2101 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2102 help
2103 Export status information via debugfs.
2104
Linus Torvalds1da177e2005-04-16 15:20:36 -07002105endif
2106
Russell Kingac9d7ef2008-08-18 17:26:00 +01002107source "drivers/cpuidle/Kconfig"
2108
2109endmenu
2110
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111menu "Floating point emulation"
2112
2113comment "At least one emulation must be selected"
2114
2115config FPE_NWFPE
2116 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002117 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002118 ---help---
2119 Say Y to include the NWFPE floating point emulator in the kernel.
2120 This is necessary to run most binaries. Linux does not currently
2121 support floating point hardware so you need to say Y here even if
2122 your machine has an FPA or floating point co-processor podule.
2123
2124 You may say N here if you are going to load the Acorn FPEmulator
2125 early in the bootup.
2126
2127config FPE_NWFPE_XP
2128 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002129 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002130 help
2131 Say Y to include 80-bit support in the kernel floating-point
2132 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2133 Note that gcc does not generate 80-bit operations by default,
2134 so in most cases this option only enlarges the size of the
2135 floating point emulator without any good reason.
2136
2137 You almost surely want to say N here.
2138
2139config FPE_FASTFPE
2140 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002141 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002142 ---help---
2143 Say Y here to include the FAST floating point emulator in the kernel.
2144 This is an experimental much faster emulator which now also has full
2145 precision for the mantissa. It does not support any exceptions.
2146 It is very simple, and approximately 3-6 times faster than NWFPE.
2147
2148 It should be sufficient for most programs. It may be not suitable
2149 for scientific calculations, but you have to check this for yourself.
2150 If you do not feel you need a faster FP emulation you should better
2151 choose NWFPE.
2152
2153config VFP
2154 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002155 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002156 help
2157 Say Y to include VFP support code in the kernel. This is needed
2158 if your hardware includes a VFP unit.
2159
2160 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2161 release notes and additional status information.
2162
2163 Say N if your target does not have VFP hardware.
2164
Catalin Marinas25ebee02007-09-25 15:22:24 +01002165config VFPv3
2166 bool
2167 depends on VFP
2168 default y if CPU_V7
2169
Catalin Marinasb5872db2008-01-10 19:16:17 +01002170config NEON
2171 bool "Advanced SIMD (NEON) Extension support"
2172 depends on VFPv3 && CPU_V7
2173 help
2174 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2175 Extension.
2176
Linus Torvalds1da177e2005-04-16 15:20:36 -07002177endmenu
2178
2179menu "Userspace binary formats"
2180
2181source "fs/Kconfig.binfmt"
2182
2183config ARTHUR
2184 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002185 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002186 help
2187 Say Y here to include the kernel code necessary if you want to run
2188 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2189 experimental; if this sounds frightening, say N and sleep in peace.
2190 You can also say M here to compile this support as a module (which
2191 will be called arthur).
2192
2193endmenu
2194
2195menu "Power management options"
2196
Russell Kingeceab4a2005-11-15 11:31:41 +00002197source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002198
Johannes Bergf4cb5702007-12-08 02:14:00 +01002199config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002200 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002201 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002202 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002203 def_bool y
2204
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002205config ARM_CPU_SUSPEND
2206 def_bool PM_SLEEP
2207
Linus Torvalds1da177e2005-04-16 15:20:36 -07002208endmenu
2209
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002210source "net/Kconfig"
2211
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002212source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213
2214source "fs/Kconfig"
2215
Linus Torvalds1da177e2005-04-16 15:20:36 -07002216source "arch/arm/Kconfig.debug"
2217
2218source "security/Kconfig"
2219
2220source "crypto/Kconfig"
2221
2222source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002223
2224source "arch/arm/kvm/Kconfig"