blob: d423d58f938dc40fb5b3c01445b9184572631b10 [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 Kingb1b3f492012-10-06 17:12:25 +010041 select HAVE_KERNEL_GZIP
42 select HAVE_KERNEL_LZMA
43 select HAVE_KERNEL_LZO
44 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010045 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080046 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010047 select HAVE_MEMBLOCK
48 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010049 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010050 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010051 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070052 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000053 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010054 select PERF_USE_VMALLOC
55 select RTC_LIB
56 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093057 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
58 select MODULES_USE_ELF_REL
Al Viro38a61b62012-10-21 15:54:27 -040059 select CLONE_BACKWARDS
Al Virob68fec22012-12-25 16:29:48 -050060 select OLD_SIGSUSPEND3
Al Viro50bcb7e2012-12-25 19:32:07 -050061 select OLD_SIGACTION
Kevin Hilmanb0088482013-03-28 22:54:40 +010062 select HAVE_CONTEXT_TRACKING
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 help
64 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000065 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000067 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 Europe. There is an ARM Linux project with a web page at
69 <http://www.arm.linux.org.uk/>.
70
Russell King74facff2011-06-02 11:16:22 +010071config ARM_HAS_SG_CHAIN
72 bool
73
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020074config NEED_SG_DMA_LENGTH
75 bool
76
77config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020078 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010079 select ARM_HAS_SG_CHAIN
80 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020081
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090082if ARM_DMA_USE_IOMMU
83
84config ARM_DMA_IOMMU_ALIGNMENT
85 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
86 range 4 9
87 default 8
88 help
89 DMA mapping framework by default aligns all buffers to the smallest
90 PAGE_SIZE order which is greater than or equal to the requested buffer
91 size. This works well for buffers up to a few hundreds kilobytes, but
92 for larger buffers it just a waste of address space. Drivers which has
93 relatively small addressing window (like 64Mib) might run out of
94 virtual space with just a few allocations.
95
96 With this parameter you can specify the maximum PAGE_SIZE order for
97 DMA IOMMU buffers. Larger buffers will be aligned only to this
98 specified order. The order is expressed as a power of two multiplied
99 by the PAGE_SIZE.
100
101endif
102
Russell King1a189b92008-04-13 21:41:55 +0100103config HAVE_PWM
104 bool
105
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100106config MIGHT_HAVE_PCI
107 bool
108
Ralf Baechle75e71532007-02-09 17:08:58 +0000109config SYS_SUPPORTS_APM_EMULATION
110 bool
111
Linus Walleijbc581772009-09-15 17:30:37 +0100112config HAVE_TCM
113 bool
114 select GENERIC_ALLOCATOR
115
Russell Kinge119bff2010-01-10 17:23:29 +0000116config HAVE_PROC_CPU
117 bool
118
Al Viro5ea81762007-02-11 15:41:31 +0000119config NO_IOPORT
120 bool
Al Viro5ea81762007-02-11 15:41:31 +0000121
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122config EISA
123 bool
124 ---help---
125 The Extended Industry Standard Architecture (EISA) bus was
126 developed as an open alternative to the IBM MicroChannel bus.
127
128 The EISA bus provided some of the features of the IBM MicroChannel
129 bus while maintaining backward compatibility with cards made for
130 the older ISA bus. The EISA bus saw limited use between 1988 and
131 1995 when it was made obsolete by the PCI bus.
132
133 Say Y here if you are building a kernel for an EISA-based machine.
134
135 Otherwise, say N.
136
137config SBUS
138 bool
139
Russell Kingf16fb1e2007-04-28 09:59:37 +0100140config STACKTRACE_SUPPORT
141 bool
142 default y
143
Nicolas Pitref76e9152008-04-24 01:31:46 -0400144config HAVE_LATENCYTOP_SUPPORT
145 bool
146 depends on !SMP
147 default y
148
Russell Kingf16fb1e2007-04-28 09:59:37 +0100149config LOCKDEP_SUPPORT
150 bool
151 default y
152
Russell King7ad1bcb2006-08-27 12:07:02 +0100153config TRACE_IRQFLAGS_SUPPORT
154 bool
155 default y
156
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157config RWSEM_GENERIC_SPINLOCK
158 bool
159 default y
160
161config RWSEM_XCHGADD_ALGORITHM
162 bool
163
David Howellsf0d1b0b2006-12-08 02:37:49 -0800164config ARCH_HAS_ILOG2_U32
165 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800166
167config ARCH_HAS_ILOG2_U64
168 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800169
Ben Dooks89c52ed2009-07-30 23:23:24 +0100170config ARCH_HAS_CPUFREQ
171 bool
172 help
173 Internal node to signify that the ARCH has CPUFREQ support
174 and that the relevant menu configurations are displayed for
175 it.
176
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800177config GENERIC_HWEIGHT
178 bool
179 default y
180
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181config GENERIC_CALIBRATE_DELAY
182 bool
183 default y
184
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100185config ARCH_MAY_HAVE_PC_FDC
186 bool
187
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800188config ZONE_DMA
189 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800190
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800191config NEED_DMA_MAP_STATE
192 def_bool y
193
Rob Herring58af4a22012-03-20 14:33:01 -0500194config ARCH_HAS_DMA_SET_COHERENT_MASK
195 bool
196
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197config GENERIC_ISA_DMA
198 bool
199
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200config FIQ
201 bool
202
Rob Herring13a50452012-02-07 09:28:22 -0600203config NEED_RET_TO_USER
204 bool
205
Al Viro034d2f52005-12-19 16:27:59 -0500206config ARCH_MTD_XIP
207 bool
208
Hyok S. Choic760fc12006-03-27 15:18:50 +0100209config VECTORS_BASE
210 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900211 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100212 default DRAM_BASE if REMAP_VECTORS_TO_RAM
213 default 0x00000000
214 help
215 The base address of exception vectors.
216
Russell Kingdc21af92011-01-04 19:09:43 +0000217config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100218 bool "Patch physical to virtual translations at runtime" if EMBEDDED
219 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100220 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000221 depends on !ARCH_REALVIEW || !SPARSEMEM
222 help
Russell King111e9a52011-05-12 10:02:42 +0100223 Patch phys-to-virt and virt-to-phys translation functions at
224 boot and module load time according to the position of the
225 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000226
Russell King111e9a52011-05-12 10:02:42 +0100227 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100228 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000229
Russell Kingc1beced2011-08-10 10:23:45 +0100230 Only disable this option if you know that you do not require
231 this feature (eg, building a kernel for a single machine) and
232 you need to shrink the kernel to the minimal size.
233
Rob Herring01464222012-08-28 13:06:41 -0500234config NEED_MACH_GPIO_H
235 bool
236 help
237 Select this when mach/gpio.h is required to provide special
238 definitions for this platform. The need for mach/gpio.h should
239 be avoided when possible.
240
Rob Herringc334bc12012-03-04 22:03:33 -0600241config NEED_MACH_IO_H
242 bool
243 help
244 Select this when mach/io.h is required to provide special
245 definitions for this platform. The need for mach/io.h should
246 be avoided when possible.
247
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400248config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400249 bool
Russell King111e9a52011-05-12 10:02:42 +0100250 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400251 Select this when mach/memory.h is required to provide special
252 definitions for this platform. The need for mach/memory.h should
253 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400254
255config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100256 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400257 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100258 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400259 help
260 Please provide the physical address corresponding to the
261 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000262
Simon Glass87e040b2011-08-16 23:44:26 +0100263config GENERIC_BUG
264 def_bool y
265 depends on BUG
266
Linus Torvalds1da177e2005-04-16 15:20:36 -0700267source "init/Kconfig"
268
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700269source "kernel/Kconfig.freezer"
270
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271menu "System Type"
272
Hyok S. Choi3c427972009-07-24 12:35:00 +0100273config MMU
274 bool "MMU-based Paged Memory Management Support"
275 default y
276 help
277 Select if you want MMU-based virtualised addressing space
278 support by paged memory management. If unsure, say 'Y'.
279
Russell Kingccf50e22010-03-15 19:03:06 +0000280#
281# The "ARM system type" choice list is ordered alphabetically by option
282# text. Please add new entries in the option alphabetic order.
283#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284choice
285 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100286 default ARCH_VERSATILE if !MMU
287 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
Rob Herring387798b2012-09-06 13:41:12 -0500289config ARCH_MULTIPLATFORM
290 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100291 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500292 select ARM_PATCH_PHYS_VIRT
293 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600294 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500295 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600296 select SPARSE_IRQ
297 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600298
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100299config ARCH_INTEGRATOR
300 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100301 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100302 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200303 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200304 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100305 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100306 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000307 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100308 select MULTI_IRQ_HANDLER
309 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000310 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100311 select SPARSE_IRQ
Linus Walleij2389d502012-10-31 22:04:31 +0100312 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100313 help
314 Support for ARM's Integrator platform.
315
316config ARCH_REALVIEW
317 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100318 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100319 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100320 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200321 select COMMON_CLK
322 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100323 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100324 select GPIO_PL061 if GPIOLIB
325 select ICST
326 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000327 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000328 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100329 help
330 This enables support for ARM Ltd RealView boards.
331
332config ARCH_VERSATILE
333 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100334 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100335 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100336 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100337 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100338 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100339 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900340 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000341 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000342 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000343 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100344 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100345 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100346 help
347 This enables support for ARM Ltd Versatile board.
348
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100349config ARCH_AT91
350 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100351 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100352 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100353 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100354 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500355 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500356 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800357 select PINCTRL
358 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100359 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100360 This enables support for systems based on Atmel
361 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100362
Russell King93e22562012-10-12 14:20:52 +0100363config ARCH_CLPS711X
364 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400365 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400366 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100367 select CLKDEV_LOOKUP
368 select COMMON_CLK
369 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400370 select GENERIC_CLOCKEVENTS
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400371 select MULTI_IRQ_HANDLER
Russell King93e22562012-10-12 14:20:52 +0100372 select NEED_MACH_MEMORY_H
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400373 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100374 help
375 Support for Cirrus Logic 711x/721x/731x based boards.
376
Russell King788c9702009-04-26 14:21:59 +0100377config ARCH_GEMINI
378 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100379 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000380 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann662146b2013-01-04 13:38:03 +0000381 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100382 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100383 help
384 Support for the Cortina Systems Gemini family SoCs
385
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386config ARCH_EBSA110
387 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100388 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000389 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100390 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600391 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400392 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100393 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394 help
395 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000396 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397 Ethernet interface, two PCMCIA sockets, two serial ports and a
398 parallel port.
399
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000400config ARCH_EP93XX
401 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100402 select ARCH_HAS_HOLES_MEMORYMODEL
403 select ARCH_REQUIRE_GPIOLIB
404 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000405 select ARM_AMBA
406 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100407 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100408 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100409 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000410 help
411 This enables support for the Cirrus EP93xx series of CPUs.
412
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413config ARCH_FOOTBRIDGE
414 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000415 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000417 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200418 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600419 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400420 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000421 help
422 Support for systems based on the DC21285 companion chip
423 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100425config ARCH_NETX
426 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100427 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100428 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000429 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100430 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000431 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100432 This enables support for systems based on the Hilscher NetX Soc
433
Russell King3b938be2007-05-12 11:25:44 +0100434config ARCH_IOP13XX
435 bool "IOP13xx-based"
436 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100437 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100438 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400439 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600440 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100441 select PCI
442 select PLAT_IOP
443 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100444 help
445 Support for Intel's IOP13XX (XScale) family of processors.
446
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100447config ARCH_IOP32X
448 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100449 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100450 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000451 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500452 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600453 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100454 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100455 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000456 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100457 Support for Intel's 80219 and IOP32X (XScale) family of
458 processors.
459
460config ARCH_IOP33X
461 bool "IOP33x-based"
462 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100463 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000464 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500465 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600466 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100467 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100468 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100469 help
470 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471
Russell King3b938be2007-05-12 11:25:44 +0100472config ARCH_IXP4XX
473 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100474 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500475 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100476 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100477 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000478 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100479 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100480 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100481 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600482 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200483 select USB_EHCI_BIG_ENDIAN_MMIO
484 select USB_EHCI_BIG_ENDIAN_DESC
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100485 help
Russell King3b938be2007-05-12 11:25:44 +0100486 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100487
Saeed Bisharaedabd382009-08-06 15:12:43 +0300488config ARCH_DOVE
489 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300490 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100491 select CPU_V7
Saeed Bisharaedabd382009-08-06 15:12:43 +0300492 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100493 select MIGHT_HAVE_PCI
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100494 select PINCTRL
495 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200496 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100497 select USB_ARCH_HAS_EHCI
Thomas Petazzoni7d554902013-03-21 17:59:17 +0100498 select MVEBU_MBUS
Saeed Bisharaedabd382009-08-06 15:12:43 +0300499 help
500 Support for the Marvell Dove SoC 88AP510
501
Saeed Bishara651c74c2008-06-22 22:45:06 +0200502config ARCH_KIRKWOOD
503 bool "Marvell Kirkwood"
Erik Benadaa8865652009-05-28 17:08:55 -0700504 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100505 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200506 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100507 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700508 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100509 select PINCTRL
510 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200511 select PLAT_ORION_LEGACY
Thomas Petazzoni5cc06732013-03-21 17:59:16 +0100512 select MVEBU_MBUS
Saeed Bishara651c74c2008-06-22 22:45:06 +0200513 help
514 Support for the following Marvell Kirkwood series SoCs:
515 88F6180, 88F6192 and 88F6281.
516
Russell King788c9702009-04-26 14:21:59 +0100517config ARCH_MV78XX0
518 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700519 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100520 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100521 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100522 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200523 select PLAT_ORION_LEGACY
Thomas Petazzoni95b80e02013-03-21 17:59:19 +0100524 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100525 help
526 Support for the following Marvell MV78xx0 series SoCs:
527 MV781x0, MV782x0.
528
529config ARCH_ORION5X
530 bool "Marvell Orion"
531 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700532 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100533 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100534 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100535 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200536 select PLAT_ORION_LEGACY
Thomas Petazzoni5d1190e2013-03-21 17:59:18 +0100537 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100538 help
539 Support for the following Marvell Orion 5x series SoCs:
540 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
541 Orion-2 (5281), Orion-1-90 (6183).
542
543config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500544 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100545 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100546 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100547 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100548 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100549 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800550 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800551 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100552 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800553 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100554 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400555 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100556 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500557 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100558
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100559config ARCH_KS8695
560 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100561 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200562 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100563 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200564 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100565 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100566 help
567 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
568 System-on-Chip devices.
569
Russell King788c9702009-04-26 14:21:59 +0100570config ARCH_W90X900
571 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100572 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100573 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100574 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100575 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100576 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200577 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100578 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
579 At present, the w90x900 has been renamed nuc900, regarding
580 the ARM series product line, you can login the following
581 link address to know more.
582
583 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
584 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400585
Russell King93e22562012-10-12 14:20:52 +0100586config ARCH_LPC32XX
587 bool "NXP LPC32XX"
588 select ARCH_REQUIRE_GPIOLIB
589 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000590 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100591 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100592 select CPU_ARM926T
593 select GENERIC_CLOCKEVENTS
594 select HAVE_IDE
595 select HAVE_PWM
596 select USB_ARCH_HAS_OHCI
597 select USE_OF
598 help
599 Support for the NXP LPC32XX family of processors
600
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700602 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100603 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100604 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100605 select ARCH_MTD_XIP
606 select ARCH_REQUIRE_GPIOLIB
607 select ARM_CPU_SUSPEND if PM
608 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100609 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100610 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100611 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800612 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100613 select HAVE_IDE
614 select MULTI_IRQ_HANDLER
615 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800616 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800617 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000618 help
eric miao2c8086a2007-09-11 19:13:17 -0700619 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620
Russell King788c9702009-04-26 14:21:59 +0100621config ARCH_MSM
622 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700623 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800624 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100625 select GENERIC_CLOCKEVENTS
626 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800627 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800628 Support for Qualcomm MSM/QSD based systems. This runs on the
629 apps processor of the MSM/QSD and depends on a shared memory
630 interface to the modem processor which runs the baseband
631 stack and controls some vital subsystems
632 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800633
Magnus Dammc793c1b2010-02-05 11:14:49 +0000634config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900635 bool "Renesas SH-Mobile / R-Mobile"
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900636 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100637 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800638 select HAVE_ARM_SCU if SMP
639 select HAVE_ARM_TWD if LOCAL_TIMERS
Russell Kingb1b3f492012-10-06 17:12:25 +0100640 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900641 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000642 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000643 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000644 select MULTI_IRQ_HANDLER
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400645 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100646 select NO_IOPORT
Magnus Damm6722f6c2013-03-18 22:58:18 +0900647 select PINCTRL if ARCH_WANT_OPTIONAL_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100648 select PM_GENERIC_DOMAINS if PM
649 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000650 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900651 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000652
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653config ARCH_RPC
654 bool "RiscPC"
655 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100656 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100657 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000658 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100659 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200660 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100661 select HAVE_PATA_PLATFORM
662 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600663 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400664 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100665 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100666 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667 help
668 On the Acorn Risc-PC, Linux can support the internal IDE disk and
669 CD-ROM interface, serial and parallel port, and the floppy drive.
670
671config ARCH_SA1100
672 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100673 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100674 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700675 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100676 select ARCH_SPARSEMEM_ENABLE
677 select CLKDEV_LOOKUP
678 select CLKSRC_MMIO
679 select CPU_FREQ
680 select CPU_SA1100
681 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200682 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100683 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500684 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400685 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100686 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000687 help
688 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900690config ARCH_S3C24XX
691 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100692 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900693 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100694 select CLKDEV_LOOKUP
Romain Naour7f78b6e2013-01-09 18:47:04 -0800695 select CLKSRC_MMIO
696 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100697 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900698 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900699 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100700 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900701 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500702 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600703 select NEED_MACH_IO_H
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900705 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
706 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
707 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
708 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900709
Ben Dooksa08ab632008-10-21 14:06:39 +0100710config ARCH_S3C64XX
711 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100712 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900713 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100714 select ARM_VIC
715 select CLKDEV_LOOKUP
Romain Naour04a49b72013-01-09 18:47:04 -0800716 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100717 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800718 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100719 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900720 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900721 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100722 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500723 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100724 select NO_IOPORT
725 select PLAT_SAMSUNG
726 select S3C_DEV_NAND
727 select S3C_GPIO_TRACK
728 select SAMSUNG_CLKSRC
729 select SAMSUNG_GPIOLIB_4BIT
730 select SAMSUNG_IRQ_VIC_TIMER
731 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100732 help
733 Samsung S3C64XX series based systems
734
Kukjin Kim49b7a492010-09-07 15:47:18 +0900735config ARCH_S5P64X0
736 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900737 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900738 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900740 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100741 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900742 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100743 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900744 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500745 select NEED_MACH_GPIO_H
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900746 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900747 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
748 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900749
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200750config ARCH_S5PC100
751 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900752 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900753 select CLKDEV_LOOKUP
Romain Naour6a5a2e32013-01-09 18:47:04 -0800754 select CLKSRC_MMIO
Byungho Min5a7652f2009-06-23 21:39:42 +0900755 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800756 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900758 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900759 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100760 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500761 select NEED_MACH_GPIO_H
Byungho Min5a7652f2009-06-23 21:39:42 +0900762 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200763 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900764
Kukjin Kim170f4e42010-02-24 16:40:44 +0900765config ARCH_S5PV210
766 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100767 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900768 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100769 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900770 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900771 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100772 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900773 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100774 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900775 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900776 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100777 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500778 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400779 select NEED_MACH_MEMORY_H
Kukjin Kim170f4e42010-02-24 16:40:44 +0900780 help
781 Samsung S5PV210/S5PC110 series based systems
782
Kukjin Kim83014572011-11-06 13:54:56 +0900783config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100784 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100785 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900786 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100787 select ARCH_SPARSEMEM_ENABLE
788 select CLKDEV_LOOKUP
Olof Johansson340fcb52013-04-26 11:47:45 -0700789 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100790 select CPU_V7
791 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900792 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900793 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900794 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100795 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500796 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400797 select NEED_MACH_MEMORY_H
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900798 help
Kukjin Kim83014572011-11-06 13:54:56 +0900799 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900800
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801config ARCH_SHARK
802 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100803 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000804 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100805 select ISA
806 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400807 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100808 select PCI
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100809 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100810 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000811 help
812 Support for the StrongARM based Digital DNARD machine, also known
813 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814
Linus Walleijd98aac72009-04-27 10:21:46 +0100815config ARCH_U300
816 bool "ST-Ericsson U300 Series"
817 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100818 select ARCH_REQUIRE_GPIOLIB
Linus Walleijd98aac72009-04-27 10:21:46 +0100819 select ARM_AMBA
Linus Walleij5485c1e2011-08-09 21:18:20 +0200820 select ARM_PATCH_PHYS_VIRT
Linus Walleijd98aac72009-04-27 10:21:46 +0100821 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100822 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100823 select CLKSRC_MMIO
Linus Walleij50667d62012-06-19 23:44:25 +0200824 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100825 select CPU_ARM926T
826 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100827 select HAVE_TCM
Linus Walleija4fe2922012-08-13 13:49:45 +0200828 select SPARSE_IRQ
Linus Walleijd98aac72009-04-27 10:21:46 +0100829 help
830 Support for ST-Ericsson U300 series mobile platforms.
831
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100832config ARCH_DAVINCI
833 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100834 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700835 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100836 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700837 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100838 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100839 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100840 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500841 select NEED_MACH_GPIO_H
Sekhar Nori689e3312012-08-28 15:27:52 +0530842 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100843 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100844 help
845 Support for TI's DaVinci platform.
846
Tony Lindgrena0694862013-01-11 11:24:20 -0800847config ARCH_OMAP1
848 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600849 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100850 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100851 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800852 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100853 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200854 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100855 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100856 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800857 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100858 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800859 select HAVE_IDE
860 select IRQ_DOMAIN
861 select NEED_MACH_IO_H if PCCARD
862 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100863 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800864 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800865
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866endchoice
867
Rob Herring387798b2012-09-06 13:41:12 -0500868menu "Multiple platform selection"
869 depends on ARCH_MULTIPLATFORM
870
871comment "CPU Core family selection"
872
873config ARCH_MULTI_V4
874 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500875 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100876 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500877
878config ARCH_MULTI_V4T
879 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500880 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100881 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500882
883config ARCH_MULTI_V5
884 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500885 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100886 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500887
888config ARCH_MULTI_V4_V5
889 bool
890
891config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800892 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500893 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100894 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500895
896config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800897 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500898 default y
899 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100900 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500901
902config ARCH_MULTI_V6_V7
903 bool
904
905config ARCH_MULTI_CPU_AUTO
906 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
907 select ARCH_MULTI_V5
908
909endmenu
910
Russell Kingccf50e22010-03-15 19:03:06 +0000911#
912# This is sorted alphabetically by mach-* pathname. However, plat-*
913# Kconfigs may be included either alphabetically (according to the
914# plat- suffix) or along side the corresponding mach-* source.
915#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200916source "arch/arm/mach-mvebu/Kconfig"
917
Russell King95b8f202010-01-14 11:43:54 +0000918source "arch/arm/mach-at91/Kconfig"
919
Christian Daudt8ac49e02012-11-19 09:46:10 -0800920source "arch/arm/mach-bcm/Kconfig"
921
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600922source "arch/arm/mach-bcm2835/Kconfig"
923
Linus Torvalds1da177e2005-04-16 15:20:36 -0700924source "arch/arm/mach-clps711x/Kconfig"
925
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300926source "arch/arm/mach-cns3xxx/Kconfig"
927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-davinci/Kconfig"
929
930source "arch/arm/mach-dove/Kconfig"
931
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000932source "arch/arm/mach-ep93xx/Kconfig"
933
Linus Torvalds1da177e2005-04-16 15:20:36 -0700934source "arch/arm/mach-footbridge/Kconfig"
935
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200936source "arch/arm/mach-gemini/Kconfig"
937
Rob Herring387798b2012-09-06 13:41:12 -0500938source "arch/arm/mach-highbank/Kconfig"
939
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940source "arch/arm/mach-integrator/Kconfig"
941
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100942source "arch/arm/mach-iop32x/Kconfig"
943
944source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945
Dan Williams285f5fa2006-12-07 02:59:39 +0100946source "arch/arm/mach-iop13xx/Kconfig"
947
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948source "arch/arm/mach-ixp4xx/Kconfig"
949
Russell King95b8f202010-01-14 11:43:54 +0000950source "arch/arm/mach-kirkwood/Kconfig"
951
952source "arch/arm/mach-ks8695/Kconfig"
953
Russell King95b8f202010-01-14 11:43:54 +0000954source "arch/arm/mach-msm/Kconfig"
955
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200956source "arch/arm/mach-mv78xx0/Kconfig"
957
Shawn Guo3995eb82012-09-13 19:48:07 +0800958source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800960source "arch/arm/mach-mxs/Kconfig"
961
Russell King95b8f202010-01-14 11:43:54 +0000962source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800963
Russell King95b8f202010-01-14 11:43:54 +0000964source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000965
Tony Lindgrend48af152005-07-10 19:58:17 +0100966source "arch/arm/plat-omap/Kconfig"
967
968source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969
Tony Lindgren1dbae812005-11-10 14:26:51 +0000970source "arch/arm/mach-omap2/Kconfig"
971
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400972source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400973
Rob Herring387798b2012-09-06 13:41:12 -0500974source "arch/arm/mach-picoxcell/Kconfig"
975
Russell King95b8f202010-01-14 11:43:54 +0000976source "arch/arm/mach-pxa/Kconfig"
977source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978
Russell King95b8f202010-01-14 11:43:54 +0000979source "arch/arm/mach-mmp/Kconfig"
980
981source "arch/arm/mach-realview/Kconfig"
982
983source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300984
Ben Dookscf383672009-11-10 00:14:58 +0000985source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100986
Rob Herring387798b2012-09-06 13:41:12 -0500987source "arch/arm/mach-socfpga/Kconfig"
988
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100989source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100990
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900991source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700992
Ben Dooksa08ab632008-10-21 14:06:39 +0100993if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900994source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100995endif
996
Kukjin Kim49b7a492010-09-07 15:47:18 +0900997source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900998
Byungho Min5a7652f2009-06-23 21:39:42 +0900999source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001000
Kukjin Kim170f4e42010-02-24 16:40:44 +09001001source "arch/arm/mach-s5pv210/Kconfig"
1002
Kukjin Kim83014572011-11-06 13:54:56 +09001003source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001004
Russell King882d01f2010-03-02 23:40:15 +00001005source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001006
Maxime Ripard3b526342012-11-08 12:40:16 +01001007source "arch/arm/mach-sunxi/Kconfig"
1008
Barry Song156a0992012-08-23 13:41:58 +08001009source "arch/arm/mach-prima2/Kconfig"
1010
Erik Gillingc5f80062010-01-21 16:53:02 -08001011source "arch/arm/mach-tegra/Kconfig"
1012
Russell King95b8f202010-01-14 11:43:54 +00001013source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001014
Russell King95b8f202010-01-14 11:43:54 +00001015source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016
1017source "arch/arm/mach-versatile/Kconfig"
1018
Russell Kingceade892010-02-11 21:44:53 +00001019source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001020source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001021
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001022source "arch/arm/mach-virt/Kconfig"
1023
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001024source "arch/arm/mach-vt8500/Kconfig"
1025
wanzongshun7ec80dd2008-12-03 03:55:38 +01001026source "arch/arm/mach-w90x900/Kconfig"
1027
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001028source "arch/arm/mach-zynq/Kconfig"
1029
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030# Definitions to make life easier
1031config ARCH_ACORN
1032 bool
1033
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001034config PLAT_IOP
1035 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001036 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001037
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001038config PLAT_ORION
1039 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001040 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001041 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001042 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001043 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001044
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001045config PLAT_ORION_LEGACY
1046 bool
1047 select PLAT_ORION
1048
Eric Miaobd5ce432009-01-20 12:06:01 +08001049config PLAT_PXA
1050 bool
1051
Russell Kingf4b8b312010-01-14 12:48:06 +00001052config PLAT_VERSATILE
1053 bool
1054
Russell Kinge3887712010-01-14 13:30:16 +00001055config ARM_TIMER_SP804
1056 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001057 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001058 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001059
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060source arch/arm/mm/Kconfig
1061
Russell King958cab02011-12-11 10:04:00 +00001062config ARM_NR_BANKS
1063 int
1064 default 16 if ARCH_EP93XX
1065 default 8
1066
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001067config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001068 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001069 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001070 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001071 help
1072 Enable support for iWMMXt context switching at run time if
1073 running on a CPU that supports it.
1074
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075config XSCALE_PMU
1076 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001077 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078 default y
1079
eric miao52108642010-12-13 09:42:34 +01001080config MULTI_IRQ_HANDLER
1081 bool
1082 help
1083 Allow each machine to specify it's own IRQ handler at run time.
1084
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001085if !MMU
1086source "arch/arm/Kconfig-nommu"
1087endif
1088
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001089config ARM_ERRATA_326103
1090 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1091 depends on CPU_V6
1092 help
1093 Executing a SWP instruction to read-only memory does not set bit 11
1094 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1095 treat the access as a read, preventing a COW from occurring and
1096 causing the faulting task to livelock.
1097
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001098config ARM_ERRATA_411920
1099 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001100 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001101 help
1102 Invalidation of the Instruction Cache operation can
1103 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1104 It does not affect the MPCore. This option enables the ARM Ltd.
1105 recommended workaround.
1106
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001107config ARM_ERRATA_430973
1108 bool "ARM errata: Stale prediction on replaced interworking branch"
1109 depends on CPU_V7
1110 help
1111 This option enables the workaround for the 430973 Cortex-A8
1112 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1113 interworking branch is replaced with another code sequence at the
1114 same virtual address, whether due to self-modifying code or virtual
1115 to physical address re-mapping, Cortex-A8 does not recover from the
1116 stale interworking branch prediction. This results in Cortex-A8
1117 executing the new code sequence in the incorrect ARM or Thumb state.
1118 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1119 and also flushes the branch target cache at every context switch.
1120 Note that setting specific bits in the ACTLR register may not be
1121 available in non-secure mode.
1122
Catalin Marinas855c5512009-04-30 17:06:15 +01001123config ARM_ERRATA_458693
1124 bool "ARM errata: Processor deadlock when a false hazard is created"
1125 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001126 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001127 help
1128 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1129 erratum. For very specific sequences of memory operations, it is
1130 possible for a hazard condition intended for a cache line to instead
1131 be incorrectly associated with a different cache line. This false
1132 hazard might then cause a processor deadlock. The workaround enables
1133 the L1 caching of the NEON accesses and disables the PLD instruction
1134 in the ACTLR register. Note that setting specific bits in the ACTLR
1135 register may not be available in non-secure mode.
1136
Catalin Marinas0516e462009-04-30 17:06:20 +01001137config ARM_ERRATA_460075
1138 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1139 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001140 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001141 help
1142 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1143 erratum. Any asynchronous access to the L2 cache may encounter a
1144 situation in which recent store transactions to the L2 cache are lost
1145 and overwritten with stale memory contents from external memory. The
1146 workaround disables the write-allocate mode for the L2 cache via the
1147 ACTLR register. Note that setting specific bits in the ACTLR register
1148 may not be available in non-secure mode.
1149
Will Deacon9f050272010-09-14 09:51:43 +01001150config ARM_ERRATA_742230
1151 bool "ARM errata: DMB operation may be faulty"
1152 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001153 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001154 help
1155 This option enables the workaround for the 742230 Cortex-A9
1156 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1157 between two write operations may not ensure the correct visibility
1158 ordering of the two writes. This workaround sets a specific bit in
1159 the diagnostic register of the Cortex-A9 which causes the DMB
1160 instruction to behave as a DSB, ensuring the correct behaviour of
1161 the two writes.
1162
Will Deacona672e992010-09-14 09:53:02 +01001163config ARM_ERRATA_742231
1164 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1165 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001166 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001167 help
1168 This option enables the workaround for the 742231 Cortex-A9
1169 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1170 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1171 accessing some data located in the same cache line, may get corrupted
1172 data due to bad handling of the address hazard when the line gets
1173 replaced from one of the CPUs at the same time as another CPU is
1174 accessing it. This workaround sets specific bits in the diagnostic
1175 register of the Cortex-A9 which reduces the linefill issuing
1176 capabilities of the processor.
1177
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001178config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001179 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001180 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001181 help
1182 The PL310 L2 cache controller implements three types of Clean &
1183 Invalidate maintenance operations: by Physical Address
1184 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1185 They are architecturally defined to behave as the execution of a
1186 clean operation followed immediately by an invalidate operation,
1187 both performing to the same memory location. This functionality
1188 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001189 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001190
1191config ARM_ERRATA_720789
1192 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001193 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001194 help
1195 This option enables the workaround for the 720789 Cortex-A9 (prior to
1196 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1197 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1198 As a consequence of this erratum, some TLB entries which should be
1199 invalidated are not, resulting in an incoherency in the system page
1200 tables. The workaround changes the TLB flushing routines to invalidate
1201 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001202
Russell King1f0090a2011-03-16 23:35:25 +00001203config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001204 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001205 depends on CACHE_L2X0
1206 help
1207 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1208 operation (offset 0x7FC). This operation runs in background so that
1209 PL310 can handle normal accesses while it is in progress. Under very
1210 rare circumstances, due to this erratum, write data can be lost when
1211 PL310 treats a cacheable write transaction during a Clean &
1212 Invalidate by Way operation.
1213
Will Deacon475d92f2010-09-28 14:02:02 +01001214config ARM_ERRATA_743622
1215 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1216 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001217 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001218 help
1219 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001220 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001221 optimisation in the Cortex-A9 Store Buffer may lead to data
1222 corruption. This workaround sets a specific bit in the diagnostic
1223 register of the Cortex-A9 which disables the Store Buffer
1224 optimisation, preventing the defect from occurring. This has no
1225 visible impact on the overall performance or power consumption of the
1226 processor.
1227
Will Deacon9a27c272011-02-18 16:36:35 +01001228config ARM_ERRATA_751472
1229 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001230 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001231 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001232 help
1233 This option enables the workaround for the 751472 Cortex-A9 (prior
1234 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1235 completion of a following broadcasted operation if the second
1236 operation is received by a CPU before the ICIALLUIS has completed,
1237 potentially leading to corrupted entries in the cache or TLB.
1238
Will Deaconfa0ce402011-11-14 17:24:57 +01001239config PL310_ERRATA_753970
1240 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001241 depends on CACHE_PL310
1242 help
1243 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1244
1245 Under some condition the effect of cache sync operation on
1246 the store buffer still remains when the operation completes.
1247 This means that the store buffer is always asked to drain and
1248 this prevents it from merging any further writes. The workaround
1249 is to replace the normal offset of cache sync operation (0x730)
1250 by another offset targeting an unmapped PL310 register 0x740.
1251 This has the same effect as the cache sync operation: store buffer
1252 drain and waiting for all buffers empty.
1253
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001254config ARM_ERRATA_754322
1255 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1256 depends on CPU_V7
1257 help
1258 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1259 r3p*) erratum. A speculative memory access may cause a page table walk
1260 which starts prior to an ASID switch but completes afterwards. This
1261 can populate the micro-TLB with a stale entry which may be hit with
1262 the new ASID. This workaround places two dsb instructions in the mm
1263 switching code so that no page table walks can cross the ASID switch.
1264
Will Deacon5dab26a2011-03-04 12:38:54 +01001265config ARM_ERRATA_754327
1266 bool "ARM errata: no automatic Store Buffer drain"
1267 depends on CPU_V7 && SMP
1268 help
1269 This option enables the workaround for the 754327 Cortex-A9 (prior to
1270 r2p0) erratum. The Store Buffer does not have any automatic draining
1271 mechanism and therefore a livelock may occur if an external agent
1272 continuously polls a memory location waiting to observe an update.
1273 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1274 written polling loops from denying visibility of updates to memory.
1275
Catalin Marinas145e10e2011-08-15 11:04:41 +01001276config ARM_ERRATA_364296
1277 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1278 depends on CPU_V6 && !SMP
1279 help
1280 This options enables the workaround for the 364296 ARM1136
1281 r0p2 erratum (possible cache data corruption with
1282 hit-under-miss enabled). It sets the undocumented bit 31 in
1283 the auxiliary control register and the FI bit in the control
1284 register, thus disabling hit-under-miss without putting the
1285 processor into full low interrupt latency mode. ARM11MPCore
1286 is not affected.
1287
Will Deaconf630c1b2011-09-15 11:45:15 +01001288config ARM_ERRATA_764369
1289 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1290 depends on CPU_V7 && SMP
1291 help
1292 This option enables the workaround for erratum 764369
1293 affecting Cortex-A9 MPCore with two or more processors (all
1294 current revisions). Under certain timing circumstances, a data
1295 cache line maintenance operation by MVA targeting an Inner
1296 Shareable memory region may fail to proceed up to either the
1297 Point of Coherency or to the Point of Unification of the
1298 system. This workaround adds a DSB instruction before the
1299 relevant cache maintenance functions and sets a specific bit
1300 in the diagnostic control register of the SCU.
1301
Will Deacon11ed0ba2011-11-14 17:24:58 +01001302config PL310_ERRATA_769419
1303 bool "PL310 errata: no automatic Store Buffer drain"
1304 depends on CACHE_L2X0
1305 help
1306 On revisions of the PL310 prior to r3p2, the Store Buffer does
1307 not automatically drain. This can cause normal, non-cacheable
1308 writes to be retained when the memory system is idle, leading
1309 to suboptimal I/O performance for drivers using coherent DMA.
1310 This option adds a write barrier to the cpu_idle loop so that,
1311 on systems with an outer cache, the store buffer is drained
1312 explicitly.
1313
Simon Horman7253b852012-09-28 02:12:45 +01001314config ARM_ERRATA_775420
1315 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1316 depends on CPU_V7
1317 help
1318 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1319 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1320 operation aborts with MMU exception, it might cause the processor
1321 to deadlock. This workaround puts DSB before executing ISB if
1322 an abort may occur on cache maintenance.
1323
Catalin Marinas93dc6882013-03-26 23:35:04 +01001324config ARM_ERRATA_798181
1325 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1326 depends on CPU_V7 && SMP
1327 help
1328 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1329 adequately shooting down all use of the old entries. This
1330 option enables the Linux kernel workaround for this erratum
1331 which sends an IPI to the CPUs that are running the same ASID
1332 as the one being invalidated.
1333
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334endmenu
1335
1336source "arch/arm/common/Kconfig"
1337
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338menu "Bus support"
1339
1340config ARM_AMBA
1341 bool
1342
1343config ISA
1344 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 help
1346 Find out whether you have ISA slots on your motherboard. ISA is the
1347 name of a bus system, i.e. the way the CPU talks to the other stuff
1348 inside your box. Other bus systems are PCI, EISA, MicroChannel
1349 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1350 newer boards don't support it. If you have ISA, say Y, otherwise N.
1351
Russell King065909b2006-01-04 15:44:16 +00001352# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001353config ISA_DMA
1354 bool
Russell King065909b2006-01-04 15:44:16 +00001355 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001356
Russell King065909b2006-01-04 15:44:16 +00001357# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001358config ISA_DMA_API
1359 bool
Al Viro5cae8412005-05-04 05:39:22 +01001360
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001362 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363 help
1364 Find out whether you have a PCI motherboard. PCI is the name of a
1365 bus system, i.e. the way the CPU talks to the other stuff inside
1366 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1367 VESA. If you have PCI, say Y, otherwise N.
1368
Anton Vorontsov52882172010-04-19 13:20:49 +01001369config PCI_DOMAINS
1370 bool
1371 depends on PCI
1372
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001373config PCI_NANOENGINE
1374 bool "BSE nanoEngine PCI support"
1375 depends on SA1100_NANOENGINE
1376 help
1377 Enable PCI on the BSE nanoEngine board.
1378
Matthew Wilcox36e23592007-07-10 10:54:40 -06001379config PCI_SYSCALL
1380 def_bool PCI
1381
Linus Torvalds1da177e2005-04-16 15:20:36 -07001382# Select the host bridge type
1383config PCI_HOST_VIA82C505
1384 bool
1385 depends on PCI && ARCH_SHARK
1386 default y
1387
Mike Rapoporta0113a92007-11-25 08:55:34 +01001388config PCI_HOST_ITE8152
1389 bool
1390 depends on PCI && MACH_ARMCORE
1391 default y
1392 select DMABOUNCE
1393
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394source "drivers/pci/Kconfig"
1395
1396source "drivers/pcmcia/Kconfig"
1397
1398endmenu
1399
1400menu "Kernel Features"
1401
Dave Martin3b556582011-12-07 15:38:04 +00001402config HAVE_SMP
1403 bool
1404 help
1405 This option should be selected by machines which have an SMP-
1406 capable CPU.
1407
1408 The only effect of this option is to make the SMP-related
1409 options available to the user for configuration.
1410
Linus Torvalds1da177e2005-04-16 15:20:36 -07001411config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001412 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001413 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001414 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001415 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001416 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +01001417 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001418 help
1419 This enables support for systems with more than one CPU. If you have
1420 a system with only one CPU, like most personal computers, say N. If
1421 you have a system with more than one CPU, say Y.
1422
1423 If you say N here, the kernel will run on single and multiprocessor
1424 machines, but will use only one CPU of a multiprocessor machine. If
1425 you say Y here, the kernel will run on many, but not all, single
1426 processor machines. On a single processor machine, the kernel will
1427 run faster if you say N here.
1428
Paul Bolle395cf962011-08-15 02:02:26 +02001429 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001430 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001431 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001432
1433 If you don't know what to do here, say N.
1434
Russell Kingf00ec482010-09-04 10:47:48 +01001435config SMP_ON_UP
1436 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001437 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001438 default y
1439 help
1440 SMP kernels contain instructions which fail on non-SMP processors.
1441 Enabling this option allows the kernel to modify itself to make
1442 these instructions safe. Disabling it allows about 1K of space
1443 savings.
1444
1445 If you don't know what to do here, say Y.
1446
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001447config ARM_CPU_TOPOLOGY
1448 bool "Support cpu topology definition"
1449 depends on SMP && CPU_V7
1450 default y
1451 help
1452 Support ARM cpu topology definition. The MPIDR register defines
1453 affinity between processors which is then used to describe the cpu
1454 topology of an ARM System.
1455
1456config SCHED_MC
1457 bool "Multi-core scheduler support"
1458 depends on ARM_CPU_TOPOLOGY
1459 help
1460 Multi-core scheduler support improves the CPU scheduler's decision
1461 making when dealing with multi-core CPU chips at a cost of slightly
1462 increased overhead in some places. If unsure say N here.
1463
1464config SCHED_SMT
1465 bool "SMT scheduler support"
1466 depends on ARM_CPU_TOPOLOGY
1467 help
1468 Improves the CPU scheduler's decision making when dealing with
1469 MultiThreading at a cost of slightly increased overhead in some
1470 places. If unsure say N here.
1471
Russell Kinga8cbcd92009-05-16 11:51:14 +01001472config HAVE_ARM_SCU
1473 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001474 help
1475 This option enables support for the ARM system coherency unit
1476
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001477config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001478 bool "Architected timer support"
1479 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001480 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001481 help
1482 This option enables support for the ARM architected timer
1483
Russell Kingf32f4ce2009-05-16 12:14:21 +01001484config HAVE_ARM_TWD
1485 bool
1486 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001487 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001488 help
1489 This options enables support for the ARM timer and watchdog unit
1490
Nicolas Pitree8db2882012-04-12 02:45:22 -04001491config MCPM
1492 bool "Multi-Cluster Power Management"
1493 depends on CPU_V7 && SMP
1494 help
1495 This option provides the common power management infrastructure
1496 for (multi-)cluster based systems, such as big.LITTLE based
1497 systems.
1498
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001499choice
1500 prompt "Memory split"
1501 default VMSPLIT_3G
1502 help
1503 Select the desired split between kernel and user memory.
1504
1505 If you are not absolutely sure what you are doing, leave this
1506 option alone!
1507
1508 config VMSPLIT_3G
1509 bool "3G/1G user/kernel split"
1510 config VMSPLIT_2G
1511 bool "2G/2G user/kernel split"
1512 config VMSPLIT_1G
1513 bool "1G/3G user/kernel split"
1514endchoice
1515
1516config PAGE_OFFSET
1517 hex
1518 default 0x40000000 if VMSPLIT_1G
1519 default 0x80000000 if VMSPLIT_2G
1520 default 0xC0000000
1521
Linus Torvalds1da177e2005-04-16 15:20:36 -07001522config NR_CPUS
1523 int "Maximum number of CPUs (2-32)"
1524 range 2 32
1525 depends on SMP
1526 default "4"
1527
Russell Kinga054a812005-11-02 22:24:33 +00001528config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001529 bool "Support for hot-pluggable CPUs"
1530 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001531 help
1532 Say Y here to experiment with turning CPUs off and on. CPUs
1533 can be controlled through /sys/devices/system/cpu.
1534
Will Deacon2bdd4242012-12-12 19:20:52 +00001535config ARM_PSCI
1536 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1537 depends on CPU_V7
1538 help
1539 Say Y here if you want Linux to communicate with system firmware
1540 implementing the PSCI specification for CPU-centric power
1541 management operations described in ARM document number ARM DEN
1542 0022A ("Power State Coordination Interface System Software on
1543 ARM processors").
1544
Russell King37ee16a2005-11-08 19:08:05 +00001545config LOCAL_TIMERS
1546 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001547 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001548 default y
1549 help
1550 Enable support for local timers on SMP platforms, rather then the
1551 legacy IPI broadcast method. Local timers allows the system
1552 accounting to be spread across the timer interval, preventing a
1553 "thundering herd" at every timer tick.
1554
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001555# The GPIO number here must be sorted by descending number. In case of
1556# a multiplatform kernel, we just want the highest value required by the
1557# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001558config ARCH_NR_GPIO
1559 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001560 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301561 default 512 if SOC_OMAP5
Olof Johansson06b851e2013-04-02 18:33:58 -07001562 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001563 default 352 if ARCH_VT8500
1564 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001565 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001566 default 0
1567 help
1568 Maximum number of GPIOs in the system.
1569
1570 If unsure, leave the default value.
1571
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001572source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001573
Russell Kingf8065812006-03-02 22:41:59 +00001574config HZ
1575 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001576 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001577 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001578 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001579 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001580 default 100
1581
Russell Kingb28748f2013-02-17 14:40:33 +00001582config SCHED_HRTICK
1583 def_bool HIGH_RES_TIMERS
1584
Catalin Marinas16c79652009-07-24 12:33:02 +01001585config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001586 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Russell King00b7ded2012-10-22 22:54:30 +01001587 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001588 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001589 select AEABI
1590 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001591 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001592 help
1593 By enabling this option, the kernel will be compiled in
1594 Thumb-2 mode. A compiler/assembler that understand the unified
1595 ARM-Thumb syntax is needed.
1596
1597 If unsure, say N.
1598
Dave Martin6f685c52011-03-03 11:41:12 +01001599config THUMB2_AVOID_R_ARM_THM_JUMP11
1600 bool "Work around buggy Thumb-2 short branch relocations in gas"
1601 depends on THUMB2_KERNEL && MODULES
1602 default y
1603 help
1604 Various binutils versions can resolve Thumb-2 branches to
1605 locally-defined, preemptible global symbols as short-range "b.n"
1606 branch instructions.
1607
1608 This is a problem, because there's no guarantee the final
1609 destination of the symbol, or any candidate locations for a
1610 trampoline, are within range of the branch. For this reason, the
1611 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1612 relocation in modules at all, and it makes little sense to add
1613 support.
1614
1615 The symptom is that the kernel fails with an "unsupported
1616 relocation" error when loading some modules.
1617
1618 Until fixed tools are available, passing
1619 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1620 code which hits this problem, at the cost of a bit of extra runtime
1621 stack usage in some cases.
1622
1623 The problem is described in more detail at:
1624 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1625
1626 Only Thumb-2 kernels are affected.
1627
1628 Unless you are sure your tools don't have this problem, say Y.
1629
Catalin Marinas0becb082009-07-24 12:32:53 +01001630config ARM_ASM_UNIFIED
1631 bool
1632
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001633config AEABI
1634 bool "Use the ARM EABI to compile the kernel"
1635 help
1636 This option allows for the kernel to be compiled using the latest
1637 ARM ABI (aka EABI). This is only useful if you are using a user
1638 space environment that is also compiled with EABI.
1639
1640 Since there are major incompatibilities between the legacy ABI and
1641 EABI, especially with regard to structure member alignment, this
1642 option also changes the kernel syscall calling convention to
1643 disambiguate both ABIs and allow for backward compatibility support
1644 (selected with CONFIG_OABI_COMPAT).
1645
1646 To use this you need GCC version 4.0.0 or later.
1647
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001648config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001649 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001650 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001651 default y
1652 help
1653 This option preserves the old syscall interface along with the
1654 new (ARM EABI) one. It also provides a compatibility layer to
1655 intercept syscalls that have structure arguments which layout
1656 in memory differs between the legacy ABI and the new ARM EABI
1657 (only for non "thumb" binaries). This option adds a tiny
1658 overhead to all syscalls and produces a slightly larger kernel.
1659 If you know you'll be using only pure EABI user space then you
1660 can say N here. If this option is not selected and you attempt
1661 to execute a legacy ABI binary then the result will be
1662 UNPREDICTABLE (in fact it can be predicted that it won't work
1663 at all). If in doubt say Y.
1664
Mel Gormaneb335752009-05-13 17:34:48 +01001665config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001666 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001667
Russell King05944d72006-11-30 20:43:51 +00001668config ARCH_SPARSEMEM_ENABLE
1669 bool
1670
Russell King07a2f732008-10-01 21:39:58 +01001671config ARCH_SPARSEMEM_DEFAULT
1672 def_bool ARCH_SPARSEMEM_ENABLE
1673
Russell King05944d72006-11-30 20:43:51 +00001674config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001675 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001676
Will Deacon7b7bf492011-05-19 13:21:14 +01001677config HAVE_ARCH_PFN_VALID
1678 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1679
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001680config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001681 bool "High Memory Support"
1682 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001683 help
1684 The address space of ARM processors is only 4 Gigabytes large
1685 and it has to accommodate user address space, kernel address
1686 space as well as some memory mapped IO. That means that, if you
1687 have a large amount of physical memory and/or IO, not all of the
1688 memory can be "permanently mapped" by the kernel. The physical
1689 memory that is not permanently mapped is called "high memory".
1690
1691 Depending on the selected kernel/user memory split, minimum
1692 vmalloc space and actual amount of RAM, you may not need this
1693 option which should result in a slightly faster kernel.
1694
1695 If unsure, say n.
1696
Russell King65cec8e2009-08-17 20:02:06 +01001697config HIGHPTE
1698 bool "Allocate 2nd-level pagetables from highmem"
1699 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001700
Jamie Iles1b8873a2010-02-02 20:25:44 +01001701config HW_PERF_EVENTS
1702 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001703 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001704 default y
1705 help
1706 Enable hardware performance counter support for perf events. If
1707 disabled, perf events will use software events only.
1708
Dave Hansen3f22ab22005-06-23 00:07:43 -07001709source "mm/Kconfig"
1710
Magnus Dammc1b2d972010-07-05 10:00:11 +01001711config FORCE_MAX_ZONEORDER
1712 int "Maximum zone order" if ARCH_SHMOBILE
1713 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001714 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001715 default "9" if SA1111
1716 default "11"
1717 help
1718 The kernel memory allocator divides physically contiguous memory
1719 blocks into "zones", where each zone is a power of two number of
1720 pages. This option selects the largest power of two that the kernel
1721 keeps in the memory allocator. If you need to allocate very large
1722 blocks of physically contiguous memory, then you may need to
1723 increase this value.
1724
1725 This config option is actually maximum order plus one. For example,
1726 a value of 11 means that the largest free memory block is 2^10 pages.
1727
Linus Torvalds1da177e2005-04-16 15:20:36 -07001728config ALIGNMENT_TRAP
1729 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001730 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001731 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001732 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001733 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001734 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1736 address divisible by 4. On 32-bit ARM processors, these non-aligned
1737 fetch/store instructions will be emulated in software if you say
1738 here, which has a severe performance impact. This is necessary for
1739 correct operation of some network protocols. With an IP-only
1740 configuration it is safe to say N, otherwise say Y.
1741
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001742config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001743 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1744 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001745 default y if CPU_FEROCEON
1746 help
1747 Implement faster copy_to_user and clear_user methods for CPU
1748 cores where a 8-word STM instruction give significantly higher
1749 memory write throughput than a sequence of individual 32bit stores.
1750
1751 A possible side effect is a slight increase in scheduling latency
1752 between threads sharing the same address space if they invoke
1753 such copy operations with large buffers.
1754
1755 However, if the CPU data cache is using a write-allocate mode,
1756 this option is unlikely to provide any performance gain.
1757
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001758config SECCOMP
1759 bool
1760 prompt "Enable seccomp to safely compute untrusted bytecode"
1761 ---help---
1762 This kernel feature is useful for number crunching applications
1763 that may need to compute untrusted bytecode during their
1764 execution. By using pipes or other transports made available to
1765 the process as file descriptors supporting the read/write
1766 syscalls, it's possible to isolate those applications in
1767 their own address space using seccomp. Once seccomp is
1768 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1769 and the task is only allowed to execute a few safe syscalls
1770 defined by each seccomp mode.
1771
Nicolas Pitrec743f382010-05-24 23:55:42 -04001772config CC_STACKPROTECTOR
1773 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1774 help
1775 This option turns on the -fstack-protector GCC feature. This
1776 feature puts, at the beginning of functions, a canary value on
1777 the stack just before the return address, and validates
1778 the value just before actually returning. Stack based buffer
1779 overflows (that need to overwrite this return address) now also
1780 overwrite the canary, which gets detected and the attack is then
1781 neutralized via a kernel panic.
1782 This feature requires gcc version 4.2 or above.
1783
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001784config XEN_DOM0
1785 def_bool y
1786 depends on XEN
1787
1788config XEN
1789 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001790 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001791 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001792 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001793 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001794 help
1795 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1796
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797endmenu
1798
1799menu "Boot options"
1800
Grant Likely9eb8f672011-04-28 14:27:20 -06001801config USE_OF
1802 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001803 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001804 select OF
1805 select OF_EARLY_FLATTREE
1806 help
1807 Include support for flattened device tree machine descriptions.
1808
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001809config ATAGS
1810 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1811 default y
1812 help
1813 This is the traditional way of passing data to the kernel at boot
1814 time. If you are solely relying on the flattened device tree (or
1815 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1816 to remove ATAGS support from your kernel binary. If unsure,
1817 leave this to y.
1818
1819config DEPRECATED_PARAM_STRUCT
1820 bool "Provide old way to pass kernel parameters"
1821 depends on ATAGS
1822 help
1823 This was deprecated in 2001 and announced to live on for 5 years.
1824 Some old boot loaders still use this way.
1825
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826# Compressed boot loader in ROM. Yes, we really want to ask about
1827# TEXT and BSS so we preserve their values in the config files.
1828config ZBOOT_ROM_TEXT
1829 hex "Compressed ROM boot loader base address"
1830 default "0"
1831 help
1832 The physical address at which the ROM-able zImage is to be
1833 placed in the target. Platforms which normally make use of
1834 ROM-able zImage formats normally set this to a suitable
1835 value in their defconfig file.
1836
1837 If ZBOOT_ROM is not enabled, this has no effect.
1838
1839config ZBOOT_ROM_BSS
1840 hex "Compressed ROM boot loader BSS address"
1841 default "0"
1842 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001843 The base address of an area of read/write memory in the target
1844 for the ROM-able zImage which must be available while the
1845 decompressor is running. It must be large enough to hold the
1846 entire decompressed kernel plus an additional 128 KiB.
1847 Platforms which normally make use of ROM-able zImage formats
1848 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001849
1850 If ZBOOT_ROM is not enabled, this has no effect.
1851
1852config ZBOOT_ROM
1853 bool "Compressed boot loader in ROM/flash"
1854 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1855 help
1856 Say Y here if you intend to execute your compressed kernel image
1857 (zImage) directly from ROM or flash. If unsure, say N.
1858
Simon Horman090ab3f2011-04-26 06:29:53 +01001859choice
1860 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001861 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001862 default ZBOOT_ROM_NONE
1863 help
1864 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001865 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001866 kernel image to an MMC or SD card and boot the kernel straight
1867 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001868 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001869 rest the kernel image to RAM.
1870
1871config ZBOOT_ROM_NONE
1872 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1873 help
1874 Do not load image from SD or MMC
1875
Simon Hormanf45b1142011-01-11 04:01:08 +01001876config ZBOOT_ROM_MMCIF
1877 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001878 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001879 Load image from MMCIF hardware block.
1880
1881config ZBOOT_ROM_SH_MOBILE_SDHI
1882 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1883 help
1884 Load image from SDHI hardware block
1885
1886endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001887
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001888config ARM_APPENDED_DTB
1889 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001890 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001891 help
1892 With this option, the boot code will look for a device tree binary
1893 (DTB) appended to zImage
1894 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1895
1896 This is meant as a backward compatibility convenience for those
1897 systems with a bootloader that can't be upgraded to accommodate
1898 the documented boot protocol using a device tree.
1899
1900 Beware that there is very little in terms of protection against
1901 this option being confused by leftover garbage in memory that might
1902 look like a DTB header after a reboot if no actual DTB is appended
1903 to zImage. Do not leave this option active in a production kernel
1904 if you don't intend to always append a DTB. Proper passing of the
1905 location into r2 of a bootloader provided DTB is always preferable
1906 to this option.
1907
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001908config ARM_ATAG_DTB_COMPAT
1909 bool "Supplement the appended DTB with traditional ATAG information"
1910 depends on ARM_APPENDED_DTB
1911 help
1912 Some old bootloaders can't be updated to a DTB capable one, yet
1913 they provide ATAGs with memory configuration, the ramdisk address,
1914 the kernel cmdline string, etc. Such information is dynamically
1915 provided by the bootloader and can't always be stored in a static
1916 DTB. To allow a device tree enabled kernel to be used with such
1917 bootloaders, this option allows zImage to extract the information
1918 from the ATAG list and store it at run time into the appended DTB.
1919
Genoud Richardd0f34a12012-06-26 16:37:59 +01001920choice
1921 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1922 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1923
1924config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1925 bool "Use bootloader kernel arguments if available"
1926 help
1927 Uses the command-line options passed by the boot loader instead of
1928 the device tree bootargs property. If the boot loader doesn't provide
1929 any, the device tree bootargs property will be used.
1930
1931config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1932 bool "Extend with bootloader kernel arguments"
1933 help
1934 The command-line arguments provided by the boot loader will be
1935 appended to the the device tree bootargs property.
1936
1937endchoice
1938
Linus Torvalds1da177e2005-04-16 15:20:36 -07001939config CMDLINE
1940 string "Default kernel command string"
1941 default ""
1942 help
1943 On some architectures (EBSA110 and CATS), there is currently no way
1944 for the boot loader to pass arguments to the kernel. For these
1945 architectures, you should supply some command-line options at build
1946 time by entering them here. As a minimum, you should specify the
1947 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1948
Victor Boivie4394c122011-05-04 17:07:55 +01001949choice
1950 prompt "Kernel command line type" if CMDLINE != ""
1951 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001952 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001953
1954config CMDLINE_FROM_BOOTLOADER
1955 bool "Use bootloader kernel arguments if available"
1956 help
1957 Uses the command-line options passed by the boot loader. If
1958 the boot loader doesn't provide any, the default kernel command
1959 string provided in CMDLINE will be used.
1960
1961config CMDLINE_EXTEND
1962 bool "Extend bootloader kernel arguments"
1963 help
1964 The command-line arguments provided by the boot loader will be
1965 appended to the default kernel command string.
1966
Alexander Holler92d20402010-02-16 19:04:53 +01001967config CMDLINE_FORCE
1968 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001969 help
1970 Always use the default kernel command string, even if the boot
1971 loader passes other arguments to the kernel.
1972 This is useful if you cannot or don't want to change the
1973 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001974endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001975
Linus Torvalds1da177e2005-04-16 15:20:36 -07001976config XIP_KERNEL
1977 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05001978 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001979 help
1980 Execute-In-Place allows the kernel to run from non-volatile storage
1981 directly addressable by the CPU, such as NOR flash. This saves RAM
1982 space since the text section of the kernel is not loaded from flash
1983 to RAM. Read-write sections, such as the data section and stack,
1984 are still copied to RAM. The XIP kernel is not compressed since
1985 it has to run directly from flash, so it will take more space to
1986 store it. The flash address used to link the kernel object files,
1987 and for storing it, is configuration dependent. Therefore, if you
1988 say Y here, you must know the proper physical address where to
1989 store the kernel image depending on your own flash memory usage.
1990
1991 Also note that the make target becomes "make xipImage" rather than
1992 "make zImage" or "make Image". The final kernel binary to put in
1993 ROM memory will be arch/arm/boot/xipImage.
1994
1995 If unsure, say N.
1996
1997config XIP_PHYS_ADDR
1998 hex "XIP Kernel Physical Location"
1999 depends on XIP_KERNEL
2000 default "0x00080000"
2001 help
2002 This is the physical address in your flash memory the kernel will
2003 be linked for and stored to. This address is dependent on your
2004 own flash usage.
2005
Richard Purdiec587e4a2007-02-06 21:29:00 +01002006config KEXEC
2007 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002008 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002009 help
2010 kexec is a system call that implements the ability to shutdown your
2011 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002012 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002013 you can start any kernel with it, not just Linux.
2014
2015 It is an ongoing process to be certain the hardware in a machine
2016 is properly shutdown, so do not be surprised if this code does not
2017 initially work for you. It may help to enable device hotplugging
2018 support.
2019
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002020config ATAGS_PROC
2021 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002022 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002023 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002024 help
2025 Should the atags used to boot the kernel be exported in an "atags"
2026 file in procfs. Useful with kexec.
2027
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002028config CRASH_DUMP
2029 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002030 help
2031 Generate crash dump after being started by kexec. This should
2032 be normally only set in special crash dump kernels which are
2033 loaded in the main kernel with kexec-tools into a specially
2034 reserved region and then later executed after a crash by
2035 kdump/kexec. The crash dump kernel must be compiled to a
2036 memory address not used by the main kernel
2037
2038 For more details see Documentation/kdump/kdump.txt
2039
Eric Miaoe69edc792010-07-05 15:56:50 +02002040config AUTO_ZRELADDR
2041 bool "Auto calculation of the decompressed kernel image address"
2042 depends on !ZBOOT_ROM && !ARCH_U300
2043 help
2044 ZRELADDR is the physical address where the decompressed kernel
2045 image will be placed. If AUTO_ZRELADDR is selected, the address
2046 will be determined at run-time by masking the current IP with
2047 0xf8000000. This assumes the zImage being placed in the first 128MB
2048 from start of memory.
2049
Linus Torvalds1da177e2005-04-16 15:20:36 -07002050endmenu
2051
Russell Kingac9d7ef2008-08-18 17:26:00 +01002052menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002053
Ben Dooks89c52ed2009-07-30 23:23:24 +01002054if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002055source "drivers/cpufreq/Kconfig"
2056
Ben Dooks9d56c022009-07-30 23:23:25 +01002057config CPU_FREQ_S3C
2058 bool
2059 help
2060 Internal configuration node for common cpufreq on Samsung SoC
2061
2062config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002063 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002064 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002065 select CPU_FREQ_S3C
2066 help
2067 This enables the CPUfreq driver for the Samsung S3C24XX family
2068 of CPUs.
2069
2070 For details, take a look at <file:Documentation/cpu-freq>.
2071
2072 If in doubt, say N.
2073
2074config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002075 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002076 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002077 help
2078 Compile in support for changing the PLL frequency from the
2079 S3C24XX series CPUfreq driver. The PLL takes time to settle
2080 after a frequency change, so by default it is not enabled.
2081
2082 This also means that the PLL tables for the selected CPU(s) will
2083 be built which may increase the size of the kernel image.
2084
2085config CPU_FREQ_S3C24XX_DEBUG
2086 bool "Debug CPUfreq Samsung driver core"
2087 depends on CPU_FREQ_S3C24XX
2088 help
2089 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2090
2091config CPU_FREQ_S3C24XX_IODEBUG
2092 bool "Debug CPUfreq Samsung driver IO timing"
2093 depends on CPU_FREQ_S3C24XX
2094 help
2095 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2096
Ben Dookse6d197a2009-07-30 23:23:42 +01002097config CPU_FREQ_S3C24XX_DEBUGFS
2098 bool "Export debugfs for CPUFreq"
2099 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2100 help
2101 Export status information via debugfs.
2102
Linus Torvalds1da177e2005-04-16 15:20:36 -07002103endif
2104
Russell Kingac9d7ef2008-08-18 17:26:00 +01002105source "drivers/cpuidle/Kconfig"
2106
2107endmenu
2108
Linus Torvalds1da177e2005-04-16 15:20:36 -07002109menu "Floating point emulation"
2110
2111comment "At least one emulation must be selected"
2112
2113config FPE_NWFPE
2114 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002115 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116 ---help---
2117 Say Y to include the NWFPE floating point emulator in the kernel.
2118 This is necessary to run most binaries. Linux does not currently
2119 support floating point hardware so you need to say Y here even if
2120 your machine has an FPA or floating point co-processor podule.
2121
2122 You may say N here if you are going to load the Acorn FPEmulator
2123 early in the bootup.
2124
2125config FPE_NWFPE_XP
2126 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002127 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128 help
2129 Say Y to include 80-bit support in the kernel floating-point
2130 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2131 Note that gcc does not generate 80-bit operations by default,
2132 so in most cases this option only enlarges the size of the
2133 floating point emulator without any good reason.
2134
2135 You almost surely want to say N here.
2136
2137config FPE_FASTFPE
2138 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002139 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002140 ---help---
2141 Say Y here to include the FAST floating point emulator in the kernel.
2142 This is an experimental much faster emulator which now also has full
2143 precision for the mantissa. It does not support any exceptions.
2144 It is very simple, and approximately 3-6 times faster than NWFPE.
2145
2146 It should be sufficient for most programs. It may be not suitable
2147 for scientific calculations, but you have to check this for yourself.
2148 If you do not feel you need a faster FP emulation you should better
2149 choose NWFPE.
2150
2151config VFP
2152 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002153 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154 help
2155 Say Y to include VFP support code in the kernel. This is needed
2156 if your hardware includes a VFP unit.
2157
2158 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2159 release notes and additional status information.
2160
2161 Say N if your target does not have VFP hardware.
2162
Catalin Marinas25ebee02007-09-25 15:22:24 +01002163config VFPv3
2164 bool
2165 depends on VFP
2166 default y if CPU_V7
2167
Catalin Marinasb5872db2008-01-10 19:16:17 +01002168config NEON
2169 bool "Advanced SIMD (NEON) Extension support"
2170 depends on VFPv3 && CPU_V7
2171 help
2172 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2173 Extension.
2174
Linus Torvalds1da177e2005-04-16 15:20:36 -07002175endmenu
2176
2177menu "Userspace binary formats"
2178
2179source "fs/Kconfig.binfmt"
2180
2181config ARTHUR
2182 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002183 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002184 help
2185 Say Y here to include the kernel code necessary if you want to run
2186 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2187 experimental; if this sounds frightening, say N and sleep in peace.
2188 You can also say M here to compile this support as a module (which
2189 will be called arthur).
2190
2191endmenu
2192
2193menu "Power management options"
2194
Russell Kingeceab4a2005-11-15 11:31:41 +00002195source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002196
Johannes Bergf4cb5702007-12-08 02:14:00 +01002197config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002198 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002199 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002200 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002201 def_bool y
2202
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002203config ARM_CPU_SUSPEND
2204 def_bool PM_SLEEP
2205
Linus Torvalds1da177e2005-04-16 15:20:36 -07002206endmenu
2207
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002208source "net/Kconfig"
2209
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002210source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002211
2212source "fs/Kconfig"
2213
Linus Torvalds1da177e2005-04-16 15:20:36 -07002214source "arch/arm/Kconfig.debug"
2215
2216source "security/Kconfig"
2217
2218source "crypto/Kconfig"
2219
2220source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002221
2222source "arch/arm/kvm/Kconfig"