blob: b6f9ce6f4f5b8670fe5c7b5ceb4dead287d07580 [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
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100815config ARCH_DAVINCI
816 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100817 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700818 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100819 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700820 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100821 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100822 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100823 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500824 select NEED_MACH_GPIO_H
Sekhar Nori689e3312012-08-28 15:27:52 +0530825 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100826 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100827 help
828 Support for TI's DaVinci platform.
829
Tony Lindgrena0694862013-01-11 11:24:20 -0800830config ARCH_OMAP1
831 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600832 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100833 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100834 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800835 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100836 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200837 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100838 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100839 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800840 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100841 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800842 select HAVE_IDE
843 select IRQ_DOMAIN
844 select NEED_MACH_IO_H if PCCARD
845 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100846 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800847 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800848
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849endchoice
850
Rob Herring387798b2012-09-06 13:41:12 -0500851menu "Multiple platform selection"
852 depends on ARCH_MULTIPLATFORM
853
854comment "CPU Core family selection"
855
856config ARCH_MULTI_V4
857 bool "ARMv4 based platforms (FA526, StrongARM)"
Rob Herring387798b2012-09-06 13:41:12 -0500858 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100859 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500860
861config ARCH_MULTI_V4T
862 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500863 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100864 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500865
866config ARCH_MULTI_V5
867 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500868 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100869 select ARCH_MULTI_V4_V5
Rob Herring387798b2012-09-06 13:41:12 -0500870
871config ARCH_MULTI_V4_V5
872 bool
873
874config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800875 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500876 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100877 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500878
879config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800880 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500881 default y
882 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100883 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500884
885config ARCH_MULTI_V6_V7
886 bool
887
888config ARCH_MULTI_CPU_AUTO
889 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
890 select ARCH_MULTI_V5
891
892endmenu
893
Russell Kingccf50e22010-03-15 19:03:06 +0000894#
895# This is sorted alphabetically by mach-* pathname. However, plat-*
896# Kconfigs may be included either alphabetically (according to the
897# plat- suffix) or along side the corresponding mach-* source.
898#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200899source "arch/arm/mach-mvebu/Kconfig"
900
Russell King95b8f202010-01-14 11:43:54 +0000901source "arch/arm/mach-at91/Kconfig"
902
Christian Daudt8ac49e02012-11-19 09:46:10 -0800903source "arch/arm/mach-bcm/Kconfig"
904
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600905source "arch/arm/mach-bcm2835/Kconfig"
906
Linus Torvalds1da177e2005-04-16 15:20:36 -0700907source "arch/arm/mach-clps711x/Kconfig"
908
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300909source "arch/arm/mach-cns3xxx/Kconfig"
910
Russell King95b8f202010-01-14 11:43:54 +0000911source "arch/arm/mach-davinci/Kconfig"
912
913source "arch/arm/mach-dove/Kconfig"
914
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000915source "arch/arm/mach-ep93xx/Kconfig"
916
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917source "arch/arm/mach-footbridge/Kconfig"
918
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200919source "arch/arm/mach-gemini/Kconfig"
920
Rob Herring387798b2012-09-06 13:41:12 -0500921source "arch/arm/mach-highbank/Kconfig"
922
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923source "arch/arm/mach-integrator/Kconfig"
924
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100925source "arch/arm/mach-iop32x/Kconfig"
926
927source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928
Dan Williams285f5fa2006-12-07 02:59:39 +0100929source "arch/arm/mach-iop13xx/Kconfig"
930
Linus Torvalds1da177e2005-04-16 15:20:36 -0700931source "arch/arm/mach-ixp4xx/Kconfig"
932
Russell King95b8f202010-01-14 11:43:54 +0000933source "arch/arm/mach-kirkwood/Kconfig"
934
935source "arch/arm/mach-ks8695/Kconfig"
936
Russell King95b8f202010-01-14 11:43:54 +0000937source "arch/arm/mach-msm/Kconfig"
938
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200939source "arch/arm/mach-mv78xx0/Kconfig"
940
Shawn Guo3995eb82012-09-13 19:48:07 +0800941source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800943source "arch/arm/mach-mxs/Kconfig"
944
Russell King95b8f202010-01-14 11:43:54 +0000945source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800946
Russell King95b8f202010-01-14 11:43:54 +0000947source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000948
Tony Lindgrend48af152005-07-10 19:58:17 +0100949source "arch/arm/plat-omap/Kconfig"
950
951source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952
Tony Lindgren1dbae812005-11-10 14:26:51 +0000953source "arch/arm/mach-omap2/Kconfig"
954
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400955source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400956
Rob Herring387798b2012-09-06 13:41:12 -0500957source "arch/arm/mach-picoxcell/Kconfig"
958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-pxa/Kconfig"
960source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961
Russell King95b8f202010-01-14 11:43:54 +0000962source "arch/arm/mach-mmp/Kconfig"
963
964source "arch/arm/mach-realview/Kconfig"
965
966source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300967
Ben Dookscf383672009-11-10 00:14:58 +0000968source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100969
Rob Herring387798b2012-09-06 13:41:12 -0500970source "arch/arm/mach-socfpga/Kconfig"
971
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100972source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100973
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900974source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975
Ben Dooksa08ab632008-10-21 14:06:39 +0100976if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900977source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100978endif
979
Kukjin Kim49b7a492010-09-07 15:47:18 +0900980source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900981
Byungho Min5a7652f2009-06-23 21:39:42 +0900982source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +0900983
Kukjin Kim170f4e42010-02-24 16:40:44 +0900984source "arch/arm/mach-s5pv210/Kconfig"
985
Kukjin Kim83014572011-11-06 13:54:56 +0900986source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900987
Russell King882d01f2010-03-02 23:40:15 +0000988source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700989
Maxime Ripard3b526342012-11-08 12:40:16 +0100990source "arch/arm/mach-sunxi/Kconfig"
991
Barry Song156a0992012-08-23 13:41:58 +0800992source "arch/arm/mach-prima2/Kconfig"
993
Erik Gillingc5f80062010-01-21 16:53:02 -0800994source "arch/arm/mach-tegra/Kconfig"
995
Russell King95b8f202010-01-14 11:43:54 +0000996source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
Russell King95b8f202010-01-14 11:43:54 +0000998source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999
1000source "arch/arm/mach-versatile/Kconfig"
1001
Russell Kingceade892010-02-11 21:44:53 +00001002source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001003source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001004
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001005source "arch/arm/mach-virt/Kconfig"
1006
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001007source "arch/arm/mach-vt8500/Kconfig"
1008
wanzongshun7ec80dd2008-12-03 03:55:38 +01001009source "arch/arm/mach-w90x900/Kconfig"
1010
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001011source "arch/arm/mach-zynq/Kconfig"
1012
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013# Definitions to make life easier
1014config ARCH_ACORN
1015 bool
1016
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001017config PLAT_IOP
1018 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001019 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001020
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001021config PLAT_ORION
1022 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001023 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001024 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001025 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001026 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001027
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001028config PLAT_ORION_LEGACY
1029 bool
1030 select PLAT_ORION
1031
Eric Miaobd5ce432009-01-20 12:06:01 +08001032config PLAT_PXA
1033 bool
1034
Russell Kingf4b8b312010-01-14 12:48:06 +00001035config PLAT_VERSATILE
1036 bool
1037
Russell Kinge3887712010-01-14 13:30:16 +00001038config ARM_TIMER_SP804
1039 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001040 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001041 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001042
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043source arch/arm/mm/Kconfig
1044
Russell King958cab02011-12-11 10:04:00 +00001045config ARM_NR_BANKS
1046 int
1047 default 16 if ARCH_EP93XX
1048 default 8
1049
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001050config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001051 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001052 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001053 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001054 help
1055 Enable support for iWMMXt context switching at run time if
1056 running on a CPU that supports it.
1057
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058config XSCALE_PMU
1059 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001060 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001061 default y
1062
eric miao52108642010-12-13 09:42:34 +01001063config MULTI_IRQ_HANDLER
1064 bool
1065 help
1066 Allow each machine to specify it's own IRQ handler at run time.
1067
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001068if !MMU
1069source "arch/arm/Kconfig-nommu"
1070endif
1071
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001072config ARM_ERRATA_326103
1073 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1074 depends on CPU_V6
1075 help
1076 Executing a SWP instruction to read-only memory does not set bit 11
1077 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1078 treat the access as a read, preventing a COW from occurring and
1079 causing the faulting task to livelock.
1080
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001081config ARM_ERRATA_411920
1082 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001083 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001084 help
1085 Invalidation of the Instruction Cache operation can
1086 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1087 It does not affect the MPCore. This option enables the ARM Ltd.
1088 recommended workaround.
1089
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001090config ARM_ERRATA_430973
1091 bool "ARM errata: Stale prediction on replaced interworking branch"
1092 depends on CPU_V7
1093 help
1094 This option enables the workaround for the 430973 Cortex-A8
1095 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1096 interworking branch is replaced with another code sequence at the
1097 same virtual address, whether due to self-modifying code or virtual
1098 to physical address re-mapping, Cortex-A8 does not recover from the
1099 stale interworking branch prediction. This results in Cortex-A8
1100 executing the new code sequence in the incorrect ARM or Thumb state.
1101 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1102 and also flushes the branch target cache at every context switch.
1103 Note that setting specific bits in the ACTLR register may not be
1104 available in non-secure mode.
1105
Catalin Marinas855c5512009-04-30 17:06:15 +01001106config ARM_ERRATA_458693
1107 bool "ARM errata: Processor deadlock when a false hazard is created"
1108 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001109 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001110 help
1111 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1112 erratum. For very specific sequences of memory operations, it is
1113 possible for a hazard condition intended for a cache line to instead
1114 be incorrectly associated with a different cache line. This false
1115 hazard might then cause a processor deadlock. The workaround enables
1116 the L1 caching of the NEON accesses and disables the PLD instruction
1117 in the ACTLR register. Note that setting specific bits in the ACTLR
1118 register may not be available in non-secure mode.
1119
Catalin Marinas0516e462009-04-30 17:06:20 +01001120config ARM_ERRATA_460075
1121 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1122 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001123 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001124 help
1125 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1126 erratum. Any asynchronous access to the L2 cache may encounter a
1127 situation in which recent store transactions to the L2 cache are lost
1128 and overwritten with stale memory contents from external memory. The
1129 workaround disables the write-allocate mode for the L2 cache via the
1130 ACTLR register. Note that setting specific bits in the ACTLR register
1131 may not be available in non-secure mode.
1132
Will Deacon9f050272010-09-14 09:51:43 +01001133config ARM_ERRATA_742230
1134 bool "ARM errata: DMB operation may be faulty"
1135 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001136 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001137 help
1138 This option enables the workaround for the 742230 Cortex-A9
1139 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1140 between two write operations may not ensure the correct visibility
1141 ordering of the two writes. This workaround sets a specific bit in
1142 the diagnostic register of the Cortex-A9 which causes the DMB
1143 instruction to behave as a DSB, ensuring the correct behaviour of
1144 the two writes.
1145
Will Deacona672e992010-09-14 09:53:02 +01001146config ARM_ERRATA_742231
1147 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1148 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001149 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001150 help
1151 This option enables the workaround for the 742231 Cortex-A9
1152 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1153 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1154 accessing some data located in the same cache line, may get corrupted
1155 data due to bad handling of the address hazard when the line gets
1156 replaced from one of the CPUs at the same time as another CPU is
1157 accessing it. This workaround sets specific bits in the diagnostic
1158 register of the Cortex-A9 which reduces the linefill issuing
1159 capabilities of the processor.
1160
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001161config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001162 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001163 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001164 help
1165 The PL310 L2 cache controller implements three types of Clean &
1166 Invalidate maintenance operations: by Physical Address
1167 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1168 They are architecturally defined to behave as the execution of a
1169 clean operation followed immediately by an invalidate operation,
1170 both performing to the same memory location. This functionality
1171 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001172 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001173
1174config ARM_ERRATA_720789
1175 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001176 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001177 help
1178 This option enables the workaround for the 720789 Cortex-A9 (prior to
1179 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1180 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1181 As a consequence of this erratum, some TLB entries which should be
1182 invalidated are not, resulting in an incoherency in the system page
1183 tables. The workaround changes the TLB flushing routines to invalidate
1184 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001185
Russell King1f0090a2011-03-16 23:35:25 +00001186config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001187 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001188 depends on CACHE_L2X0
1189 help
1190 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1191 operation (offset 0x7FC). This operation runs in background so that
1192 PL310 can handle normal accesses while it is in progress. Under very
1193 rare circumstances, due to this erratum, write data can be lost when
1194 PL310 treats a cacheable write transaction during a Clean &
1195 Invalidate by Way operation.
1196
Will Deacon475d92f2010-09-28 14:02:02 +01001197config ARM_ERRATA_743622
1198 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1199 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001200 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001201 help
1202 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001203 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001204 optimisation in the Cortex-A9 Store Buffer may lead to data
1205 corruption. This workaround sets a specific bit in the diagnostic
1206 register of the Cortex-A9 which disables the Store Buffer
1207 optimisation, preventing the defect from occurring. This has no
1208 visible impact on the overall performance or power consumption of the
1209 processor.
1210
Will Deacon9a27c272011-02-18 16:36:35 +01001211config ARM_ERRATA_751472
1212 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001213 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001214 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001215 help
1216 This option enables the workaround for the 751472 Cortex-A9 (prior
1217 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1218 completion of a following broadcasted operation if the second
1219 operation is received by a CPU before the ICIALLUIS has completed,
1220 potentially leading to corrupted entries in the cache or TLB.
1221
Will Deaconfa0ce402011-11-14 17:24:57 +01001222config PL310_ERRATA_753970
1223 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001224 depends on CACHE_PL310
1225 help
1226 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1227
1228 Under some condition the effect of cache sync operation on
1229 the store buffer still remains when the operation completes.
1230 This means that the store buffer is always asked to drain and
1231 this prevents it from merging any further writes. The workaround
1232 is to replace the normal offset of cache sync operation (0x730)
1233 by another offset targeting an unmapped PL310 register 0x740.
1234 This has the same effect as the cache sync operation: store buffer
1235 drain and waiting for all buffers empty.
1236
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001237config ARM_ERRATA_754322
1238 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1239 depends on CPU_V7
1240 help
1241 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1242 r3p*) erratum. A speculative memory access may cause a page table walk
1243 which starts prior to an ASID switch but completes afterwards. This
1244 can populate the micro-TLB with a stale entry which may be hit with
1245 the new ASID. This workaround places two dsb instructions in the mm
1246 switching code so that no page table walks can cross the ASID switch.
1247
Will Deacon5dab26a2011-03-04 12:38:54 +01001248config ARM_ERRATA_754327
1249 bool "ARM errata: no automatic Store Buffer drain"
1250 depends on CPU_V7 && SMP
1251 help
1252 This option enables the workaround for the 754327 Cortex-A9 (prior to
1253 r2p0) erratum. The Store Buffer does not have any automatic draining
1254 mechanism and therefore a livelock may occur if an external agent
1255 continuously polls a memory location waiting to observe an update.
1256 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1257 written polling loops from denying visibility of updates to memory.
1258
Catalin Marinas145e10e2011-08-15 11:04:41 +01001259config ARM_ERRATA_364296
1260 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1261 depends on CPU_V6 && !SMP
1262 help
1263 This options enables the workaround for the 364296 ARM1136
1264 r0p2 erratum (possible cache data corruption with
1265 hit-under-miss enabled). It sets the undocumented bit 31 in
1266 the auxiliary control register and the FI bit in the control
1267 register, thus disabling hit-under-miss without putting the
1268 processor into full low interrupt latency mode. ARM11MPCore
1269 is not affected.
1270
Will Deaconf630c1b2011-09-15 11:45:15 +01001271config ARM_ERRATA_764369
1272 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1273 depends on CPU_V7 && SMP
1274 help
1275 This option enables the workaround for erratum 764369
1276 affecting Cortex-A9 MPCore with two or more processors (all
1277 current revisions). Under certain timing circumstances, a data
1278 cache line maintenance operation by MVA targeting an Inner
1279 Shareable memory region may fail to proceed up to either the
1280 Point of Coherency or to the Point of Unification of the
1281 system. This workaround adds a DSB instruction before the
1282 relevant cache maintenance functions and sets a specific bit
1283 in the diagnostic control register of the SCU.
1284
Will Deacon11ed0ba2011-11-14 17:24:58 +01001285config PL310_ERRATA_769419
1286 bool "PL310 errata: no automatic Store Buffer drain"
1287 depends on CACHE_L2X0
1288 help
1289 On revisions of the PL310 prior to r3p2, the Store Buffer does
1290 not automatically drain. This can cause normal, non-cacheable
1291 writes to be retained when the memory system is idle, leading
1292 to suboptimal I/O performance for drivers using coherent DMA.
1293 This option adds a write barrier to the cpu_idle loop so that,
1294 on systems with an outer cache, the store buffer is drained
1295 explicitly.
1296
Simon Horman7253b852012-09-28 02:12:45 +01001297config ARM_ERRATA_775420
1298 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1299 depends on CPU_V7
1300 help
1301 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1302 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1303 operation aborts with MMU exception, it might cause the processor
1304 to deadlock. This workaround puts DSB before executing ISB if
1305 an abort may occur on cache maintenance.
1306
Catalin Marinas93dc6882013-03-26 23:35:04 +01001307config ARM_ERRATA_798181
1308 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1309 depends on CPU_V7 && SMP
1310 help
1311 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1312 adequately shooting down all use of the old entries. This
1313 option enables the Linux kernel workaround for this erratum
1314 which sends an IPI to the CPUs that are running the same ASID
1315 as the one being invalidated.
1316
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317endmenu
1318
1319source "arch/arm/common/Kconfig"
1320
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321menu "Bus support"
1322
1323config ARM_AMBA
1324 bool
1325
1326config ISA
1327 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328 help
1329 Find out whether you have ISA slots on your motherboard. ISA is the
1330 name of a bus system, i.e. the way the CPU talks to the other stuff
1331 inside your box. Other bus systems are PCI, EISA, MicroChannel
1332 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1333 newer boards don't support it. If you have ISA, say Y, otherwise N.
1334
Russell King065909b2006-01-04 15:44:16 +00001335# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336config ISA_DMA
1337 bool
Russell King065909b2006-01-04 15:44:16 +00001338 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339
Russell King065909b2006-01-04 15:44:16 +00001340# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001341config ISA_DMA_API
1342 bool
Al Viro5cae8412005-05-04 05:39:22 +01001343
Linus Torvalds1da177e2005-04-16 15:20:36 -07001344config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001345 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001346 help
1347 Find out whether you have a PCI motherboard. PCI is the name of a
1348 bus system, i.e. the way the CPU talks to the other stuff inside
1349 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1350 VESA. If you have PCI, say Y, otherwise N.
1351
Anton Vorontsov52882172010-04-19 13:20:49 +01001352config PCI_DOMAINS
1353 bool
1354 depends on PCI
1355
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001356config PCI_NANOENGINE
1357 bool "BSE nanoEngine PCI support"
1358 depends on SA1100_NANOENGINE
1359 help
1360 Enable PCI on the BSE nanoEngine board.
1361
Matthew Wilcox36e23592007-07-10 10:54:40 -06001362config PCI_SYSCALL
1363 def_bool PCI
1364
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365# Select the host bridge type
1366config PCI_HOST_VIA82C505
1367 bool
1368 depends on PCI && ARCH_SHARK
1369 default y
1370
Mike Rapoporta0113a92007-11-25 08:55:34 +01001371config PCI_HOST_ITE8152
1372 bool
1373 depends on PCI && MACH_ARMCORE
1374 default y
1375 select DMABOUNCE
1376
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377source "drivers/pci/Kconfig"
1378
1379source "drivers/pcmcia/Kconfig"
1380
1381endmenu
1382
1383menu "Kernel Features"
1384
Dave Martin3b556582011-12-07 15:38:04 +00001385config HAVE_SMP
1386 bool
1387 help
1388 This option should be selected by machines which have an SMP-
1389 capable CPU.
1390
1391 The only effect of this option is to make the SMP-related
1392 options available to the user for configuration.
1393
Linus Torvalds1da177e2005-04-16 15:20:36 -07001394config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001395 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001396 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001397 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001398 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001399 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +01001400 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401 help
1402 This enables support for systems with more than one CPU. If you have
1403 a system with only one CPU, like most personal computers, say N. If
1404 you have a system with more than one CPU, say Y.
1405
1406 If you say N here, the kernel will run on single and multiprocessor
1407 machines, but will use only one CPU of a multiprocessor machine. If
1408 you say Y here, the kernel will run on many, but not all, single
1409 processor machines. On a single processor machine, the kernel will
1410 run faster if you say N here.
1411
Paul Bolle395cf962011-08-15 02:02:26 +02001412 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001413 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001414 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001415
1416 If you don't know what to do here, say N.
1417
Russell Kingf00ec482010-09-04 10:47:48 +01001418config SMP_ON_UP
1419 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001420 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001421 default y
1422 help
1423 SMP kernels contain instructions which fail on non-SMP processors.
1424 Enabling this option allows the kernel to modify itself to make
1425 these instructions safe. Disabling it allows about 1K of space
1426 savings.
1427
1428 If you don't know what to do here, say Y.
1429
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001430config ARM_CPU_TOPOLOGY
1431 bool "Support cpu topology definition"
1432 depends on SMP && CPU_V7
1433 default y
1434 help
1435 Support ARM cpu topology definition. The MPIDR register defines
1436 affinity between processors which is then used to describe the cpu
1437 topology of an ARM System.
1438
1439config SCHED_MC
1440 bool "Multi-core scheduler support"
1441 depends on ARM_CPU_TOPOLOGY
1442 help
1443 Multi-core scheduler support improves the CPU scheduler's decision
1444 making when dealing with multi-core CPU chips at a cost of slightly
1445 increased overhead in some places. If unsure say N here.
1446
1447config SCHED_SMT
1448 bool "SMT scheduler support"
1449 depends on ARM_CPU_TOPOLOGY
1450 help
1451 Improves the CPU scheduler's decision making when dealing with
1452 MultiThreading at a cost of slightly increased overhead in some
1453 places. If unsure say N here.
1454
Russell Kinga8cbcd92009-05-16 11:51:14 +01001455config HAVE_ARM_SCU
1456 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001457 help
1458 This option enables support for the ARM system coherency unit
1459
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001460config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001461 bool "Architected timer support"
1462 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001463 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001464 help
1465 This option enables support for the ARM architected timer
1466
Russell Kingf32f4ce2009-05-16 12:14:21 +01001467config HAVE_ARM_TWD
1468 bool
1469 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001470 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001471 help
1472 This options enables support for the ARM timer and watchdog unit
1473
Nicolas Pitree8db2882012-04-12 02:45:22 -04001474config MCPM
1475 bool "Multi-Cluster Power Management"
1476 depends on CPU_V7 && SMP
1477 help
1478 This option provides the common power management infrastructure
1479 for (multi-)cluster based systems, such as big.LITTLE based
1480 systems.
1481
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001482choice
1483 prompt "Memory split"
1484 default VMSPLIT_3G
1485 help
1486 Select the desired split between kernel and user memory.
1487
1488 If you are not absolutely sure what you are doing, leave this
1489 option alone!
1490
1491 config VMSPLIT_3G
1492 bool "3G/1G user/kernel split"
1493 config VMSPLIT_2G
1494 bool "2G/2G user/kernel split"
1495 config VMSPLIT_1G
1496 bool "1G/3G user/kernel split"
1497endchoice
1498
1499config PAGE_OFFSET
1500 hex
1501 default 0x40000000 if VMSPLIT_1G
1502 default 0x80000000 if VMSPLIT_2G
1503 default 0xC0000000
1504
Linus Torvalds1da177e2005-04-16 15:20:36 -07001505config NR_CPUS
1506 int "Maximum number of CPUs (2-32)"
1507 range 2 32
1508 depends on SMP
1509 default "4"
1510
Russell Kinga054a812005-11-02 22:24:33 +00001511config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001512 bool "Support for hot-pluggable CPUs"
1513 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001514 help
1515 Say Y here to experiment with turning CPUs off and on. CPUs
1516 can be controlled through /sys/devices/system/cpu.
1517
Will Deacon2bdd4242012-12-12 19:20:52 +00001518config ARM_PSCI
1519 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1520 depends on CPU_V7
1521 help
1522 Say Y here if you want Linux to communicate with system firmware
1523 implementing the PSCI specification for CPU-centric power
1524 management operations described in ARM document number ARM DEN
1525 0022A ("Power State Coordination Interface System Software on
1526 ARM processors").
1527
Russell King37ee16a2005-11-08 19:08:05 +00001528config LOCAL_TIMERS
1529 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001530 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001531 default y
1532 help
1533 Enable support for local timers on SMP platforms, rather then the
1534 legacy IPI broadcast method. Local timers allows the system
1535 accounting to be spread across the timer interval, preventing a
1536 "thundering herd" at every timer tick.
1537
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001538# The GPIO number here must be sorted by descending number. In case of
1539# a multiplatform kernel, we just want the highest value required by the
1540# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001541config ARCH_NR_GPIO
1542 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001543 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301544 default 512 if SOC_OMAP5
Olof Johansson06b851e2013-04-02 18:33:58 -07001545 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001546 default 352 if ARCH_VT8500
1547 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001548 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001549 default 0
1550 help
1551 Maximum number of GPIOs in the system.
1552
1553 If unsure, leave the default value.
1554
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001555source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556
Russell Kingf8065812006-03-02 22:41:59 +00001557config HZ
1558 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001559 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001560 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001561 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001562 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001563 default 100
1564
Russell Kingb28748f2013-02-17 14:40:33 +00001565config SCHED_HRTICK
1566 def_bool HIGH_RES_TIMERS
1567
Catalin Marinas16c79652009-07-24 12:33:02 +01001568config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001569 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Russell King00b7ded2012-10-22 22:54:30 +01001570 depends on CPU_V7 && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001571 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001572 select AEABI
1573 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001574 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001575 help
1576 By enabling this option, the kernel will be compiled in
1577 Thumb-2 mode. A compiler/assembler that understand the unified
1578 ARM-Thumb syntax is needed.
1579
1580 If unsure, say N.
1581
Dave Martin6f685c52011-03-03 11:41:12 +01001582config THUMB2_AVOID_R_ARM_THM_JUMP11
1583 bool "Work around buggy Thumb-2 short branch relocations in gas"
1584 depends on THUMB2_KERNEL && MODULES
1585 default y
1586 help
1587 Various binutils versions can resolve Thumb-2 branches to
1588 locally-defined, preemptible global symbols as short-range "b.n"
1589 branch instructions.
1590
1591 This is a problem, because there's no guarantee the final
1592 destination of the symbol, or any candidate locations for a
1593 trampoline, are within range of the branch. For this reason, the
1594 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1595 relocation in modules at all, and it makes little sense to add
1596 support.
1597
1598 The symptom is that the kernel fails with an "unsupported
1599 relocation" error when loading some modules.
1600
1601 Until fixed tools are available, passing
1602 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1603 code which hits this problem, at the cost of a bit of extra runtime
1604 stack usage in some cases.
1605
1606 The problem is described in more detail at:
1607 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1608
1609 Only Thumb-2 kernels are affected.
1610
1611 Unless you are sure your tools don't have this problem, say Y.
1612
Catalin Marinas0becb082009-07-24 12:32:53 +01001613config ARM_ASM_UNIFIED
1614 bool
1615
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001616config AEABI
1617 bool "Use the ARM EABI to compile the kernel"
1618 help
1619 This option allows for the kernel to be compiled using the latest
1620 ARM ABI (aka EABI). This is only useful if you are using a user
1621 space environment that is also compiled with EABI.
1622
1623 Since there are major incompatibilities between the legacy ABI and
1624 EABI, especially with regard to structure member alignment, this
1625 option also changes the kernel syscall calling convention to
1626 disambiguate both ABIs and allow for backward compatibility support
1627 (selected with CONFIG_OABI_COMPAT).
1628
1629 To use this you need GCC version 4.0.0 or later.
1630
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001631config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001632 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001633 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001634 default y
1635 help
1636 This option preserves the old syscall interface along with the
1637 new (ARM EABI) one. It also provides a compatibility layer to
1638 intercept syscalls that have structure arguments which layout
1639 in memory differs between the legacy ABI and the new ARM EABI
1640 (only for non "thumb" binaries). This option adds a tiny
1641 overhead to all syscalls and produces a slightly larger kernel.
1642 If you know you'll be using only pure EABI user space then you
1643 can say N here. If this option is not selected and you attempt
1644 to execute a legacy ABI binary then the result will be
1645 UNPREDICTABLE (in fact it can be predicted that it won't work
1646 at all). If in doubt say Y.
1647
Mel Gormaneb335752009-05-13 17:34:48 +01001648config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001649 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001650
Russell King05944d72006-11-30 20:43:51 +00001651config ARCH_SPARSEMEM_ENABLE
1652 bool
1653
Russell King07a2f732008-10-01 21:39:58 +01001654config ARCH_SPARSEMEM_DEFAULT
1655 def_bool ARCH_SPARSEMEM_ENABLE
1656
Russell King05944d72006-11-30 20:43:51 +00001657config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001658 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001659
Will Deacon7b7bf492011-05-19 13:21:14 +01001660config HAVE_ARCH_PFN_VALID
1661 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1662
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001663config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001664 bool "High Memory Support"
1665 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001666 help
1667 The address space of ARM processors is only 4 Gigabytes large
1668 and it has to accommodate user address space, kernel address
1669 space as well as some memory mapped IO. That means that, if you
1670 have a large amount of physical memory and/or IO, not all of the
1671 memory can be "permanently mapped" by the kernel. The physical
1672 memory that is not permanently mapped is called "high memory".
1673
1674 Depending on the selected kernel/user memory split, minimum
1675 vmalloc space and actual amount of RAM, you may not need this
1676 option which should result in a slightly faster kernel.
1677
1678 If unsure, say n.
1679
Russell King65cec8e2009-08-17 20:02:06 +01001680config HIGHPTE
1681 bool "Allocate 2nd-level pagetables from highmem"
1682 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001683
Jamie Iles1b8873a2010-02-02 20:25:44 +01001684config HW_PERF_EVENTS
1685 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001686 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001687 default y
1688 help
1689 Enable hardware performance counter support for perf events. If
1690 disabled, perf events will use software events only.
1691
Dave Hansen3f22ab22005-06-23 00:07:43 -07001692source "mm/Kconfig"
1693
Magnus Dammc1b2d972010-07-05 10:00:11 +01001694config FORCE_MAX_ZONEORDER
1695 int "Maximum zone order" if ARCH_SHMOBILE
1696 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001697 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001698 default "9" if SA1111
1699 default "11"
1700 help
1701 The kernel memory allocator divides physically contiguous memory
1702 blocks into "zones", where each zone is a power of two number of
1703 pages. This option selects the largest power of two that the kernel
1704 keeps in the memory allocator. If you need to allocate very large
1705 blocks of physically contiguous memory, then you may need to
1706 increase this value.
1707
1708 This config option is actually maximum order plus one. For example,
1709 a value of 11 means that the largest free memory block is 2^10 pages.
1710
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711config ALIGNMENT_TRAP
1712 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001713 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001715 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001716 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001717 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001718 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1719 address divisible by 4. On 32-bit ARM processors, these non-aligned
1720 fetch/store instructions will be emulated in software if you say
1721 here, which has a severe performance impact. This is necessary for
1722 correct operation of some network protocols. With an IP-only
1723 configuration it is safe to say N, otherwise say Y.
1724
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001725config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001726 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1727 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001728 default y if CPU_FEROCEON
1729 help
1730 Implement faster copy_to_user and clear_user methods for CPU
1731 cores where a 8-word STM instruction give significantly higher
1732 memory write throughput than a sequence of individual 32bit stores.
1733
1734 A possible side effect is a slight increase in scheduling latency
1735 between threads sharing the same address space if they invoke
1736 such copy operations with large buffers.
1737
1738 However, if the CPU data cache is using a write-allocate mode,
1739 this option is unlikely to provide any performance gain.
1740
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001741config SECCOMP
1742 bool
1743 prompt "Enable seccomp to safely compute untrusted bytecode"
1744 ---help---
1745 This kernel feature is useful for number crunching applications
1746 that may need to compute untrusted bytecode during their
1747 execution. By using pipes or other transports made available to
1748 the process as file descriptors supporting the read/write
1749 syscalls, it's possible to isolate those applications in
1750 their own address space using seccomp. Once seccomp is
1751 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1752 and the task is only allowed to execute a few safe syscalls
1753 defined by each seccomp mode.
1754
Nicolas Pitrec743f382010-05-24 23:55:42 -04001755config CC_STACKPROTECTOR
1756 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1757 help
1758 This option turns on the -fstack-protector GCC feature. This
1759 feature puts, at the beginning of functions, a canary value on
1760 the stack just before the return address, and validates
1761 the value just before actually returning. Stack based buffer
1762 overflows (that need to overwrite this return address) now also
1763 overwrite the canary, which gets detected and the attack is then
1764 neutralized via a kernel panic.
1765 This feature requires gcc version 4.2 or above.
1766
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001767config XEN_DOM0
1768 def_bool y
1769 depends on XEN
1770
1771config XEN
1772 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001773 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001774 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001775 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001776 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001777 help
1778 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1779
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780endmenu
1781
1782menu "Boot options"
1783
Grant Likely9eb8f672011-04-28 14:27:20 -06001784config USE_OF
1785 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001786 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001787 select OF
1788 select OF_EARLY_FLATTREE
1789 help
1790 Include support for flattened device tree machine descriptions.
1791
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001792config ATAGS
1793 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1794 default y
1795 help
1796 This is the traditional way of passing data to the kernel at boot
1797 time. If you are solely relying on the flattened device tree (or
1798 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1799 to remove ATAGS support from your kernel binary. If unsure,
1800 leave this to y.
1801
1802config DEPRECATED_PARAM_STRUCT
1803 bool "Provide old way to pass kernel parameters"
1804 depends on ATAGS
1805 help
1806 This was deprecated in 2001 and announced to live on for 5 years.
1807 Some old boot loaders still use this way.
1808
Linus Torvalds1da177e2005-04-16 15:20:36 -07001809# Compressed boot loader in ROM. Yes, we really want to ask about
1810# TEXT and BSS so we preserve their values in the config files.
1811config ZBOOT_ROM_TEXT
1812 hex "Compressed ROM boot loader base address"
1813 default "0"
1814 help
1815 The physical address at which the ROM-able zImage is to be
1816 placed in the target. Platforms which normally make use of
1817 ROM-able zImage formats normally set this to a suitable
1818 value in their defconfig file.
1819
1820 If ZBOOT_ROM is not enabled, this has no effect.
1821
1822config ZBOOT_ROM_BSS
1823 hex "Compressed ROM boot loader BSS address"
1824 default "0"
1825 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001826 The base address of an area of read/write memory in the target
1827 for the ROM-able zImage which must be available while the
1828 decompressor is running. It must be large enough to hold the
1829 entire decompressed kernel plus an additional 128 KiB.
1830 Platforms which normally make use of ROM-able zImage formats
1831 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832
1833 If ZBOOT_ROM is not enabled, this has no effect.
1834
1835config ZBOOT_ROM
1836 bool "Compressed boot loader in ROM/flash"
1837 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1838 help
1839 Say Y here if you intend to execute your compressed kernel image
1840 (zImage) directly from ROM or flash. If unsure, say N.
1841
Simon Horman090ab3f2011-04-26 06:29:53 +01001842choice
1843 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001844 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001845 default ZBOOT_ROM_NONE
1846 help
1847 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001848 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001849 kernel image to an MMC or SD card and boot the kernel straight
1850 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001851 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001852 rest the kernel image to RAM.
1853
1854config ZBOOT_ROM_NONE
1855 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1856 help
1857 Do not load image from SD or MMC
1858
Simon Hormanf45b1142011-01-11 04:01:08 +01001859config ZBOOT_ROM_MMCIF
1860 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001861 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001862 Load image from MMCIF hardware block.
1863
1864config ZBOOT_ROM_SH_MOBILE_SDHI
1865 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1866 help
1867 Load image from SDHI hardware block
1868
1869endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001870
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001871config ARM_APPENDED_DTB
1872 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001873 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001874 help
1875 With this option, the boot code will look for a device tree binary
1876 (DTB) appended to zImage
1877 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1878
1879 This is meant as a backward compatibility convenience for those
1880 systems with a bootloader that can't be upgraded to accommodate
1881 the documented boot protocol using a device tree.
1882
1883 Beware that there is very little in terms of protection against
1884 this option being confused by leftover garbage in memory that might
1885 look like a DTB header after a reboot if no actual DTB is appended
1886 to zImage. Do not leave this option active in a production kernel
1887 if you don't intend to always append a DTB. Proper passing of the
1888 location into r2 of a bootloader provided DTB is always preferable
1889 to this option.
1890
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001891config ARM_ATAG_DTB_COMPAT
1892 bool "Supplement the appended DTB with traditional ATAG information"
1893 depends on ARM_APPENDED_DTB
1894 help
1895 Some old bootloaders can't be updated to a DTB capable one, yet
1896 they provide ATAGs with memory configuration, the ramdisk address,
1897 the kernel cmdline string, etc. Such information is dynamically
1898 provided by the bootloader and can't always be stored in a static
1899 DTB. To allow a device tree enabled kernel to be used with such
1900 bootloaders, this option allows zImage to extract the information
1901 from the ATAG list and store it at run time into the appended DTB.
1902
Genoud Richardd0f34a12012-06-26 16:37:59 +01001903choice
1904 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1905 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1906
1907config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1908 bool "Use bootloader kernel arguments if available"
1909 help
1910 Uses the command-line options passed by the boot loader instead of
1911 the device tree bootargs property. If the boot loader doesn't provide
1912 any, the device tree bootargs property will be used.
1913
1914config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1915 bool "Extend with bootloader kernel arguments"
1916 help
1917 The command-line arguments provided by the boot loader will be
1918 appended to the the device tree bootargs property.
1919
1920endchoice
1921
Linus Torvalds1da177e2005-04-16 15:20:36 -07001922config CMDLINE
1923 string "Default kernel command string"
1924 default ""
1925 help
1926 On some architectures (EBSA110 and CATS), there is currently no way
1927 for the boot loader to pass arguments to the kernel. For these
1928 architectures, you should supply some command-line options at build
1929 time by entering them here. As a minimum, you should specify the
1930 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1931
Victor Boivie4394c122011-05-04 17:07:55 +01001932choice
1933 prompt "Kernel command line type" if CMDLINE != ""
1934 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001935 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001936
1937config CMDLINE_FROM_BOOTLOADER
1938 bool "Use bootloader kernel arguments if available"
1939 help
1940 Uses the command-line options passed by the boot loader. If
1941 the boot loader doesn't provide any, the default kernel command
1942 string provided in CMDLINE will be used.
1943
1944config CMDLINE_EXTEND
1945 bool "Extend bootloader kernel arguments"
1946 help
1947 The command-line arguments provided by the boot loader will be
1948 appended to the default kernel command string.
1949
Alexander Holler92d20402010-02-16 19:04:53 +01001950config CMDLINE_FORCE
1951 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001952 help
1953 Always use the default kernel command string, even if the boot
1954 loader passes other arguments to the kernel.
1955 This is useful if you cannot or don't want to change the
1956 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001957endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001958
Linus Torvalds1da177e2005-04-16 15:20:36 -07001959config XIP_KERNEL
1960 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05001961 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001962 help
1963 Execute-In-Place allows the kernel to run from non-volatile storage
1964 directly addressable by the CPU, such as NOR flash. This saves RAM
1965 space since the text section of the kernel is not loaded from flash
1966 to RAM. Read-write sections, such as the data section and stack,
1967 are still copied to RAM. The XIP kernel is not compressed since
1968 it has to run directly from flash, so it will take more space to
1969 store it. The flash address used to link the kernel object files,
1970 and for storing it, is configuration dependent. Therefore, if you
1971 say Y here, you must know the proper physical address where to
1972 store the kernel image depending on your own flash memory usage.
1973
1974 Also note that the make target becomes "make xipImage" rather than
1975 "make zImage" or "make Image". The final kernel binary to put in
1976 ROM memory will be arch/arm/boot/xipImage.
1977
1978 If unsure, say N.
1979
1980config XIP_PHYS_ADDR
1981 hex "XIP Kernel Physical Location"
1982 depends on XIP_KERNEL
1983 default "0x00080000"
1984 help
1985 This is the physical address in your flash memory the kernel will
1986 be linked for and stored to. This address is dependent on your
1987 own flash usage.
1988
Richard Purdiec587e4a2007-02-06 21:29:00 +01001989config KEXEC
1990 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001991 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01001992 help
1993 kexec is a system call that implements the ability to shutdown your
1994 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001995 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001996 you can start any kernel with it, not just Linux.
1997
1998 It is an ongoing process to be certain the hardware in a machine
1999 is properly shutdown, so do not be surprised if this code does not
2000 initially work for you. It may help to enable device hotplugging
2001 support.
2002
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002003config ATAGS_PROC
2004 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002005 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002006 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002007 help
2008 Should the atags used to boot the kernel be exported in an "atags"
2009 file in procfs. Useful with kexec.
2010
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002011config CRASH_DUMP
2012 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002013 help
2014 Generate crash dump after being started by kexec. This should
2015 be normally only set in special crash dump kernels which are
2016 loaded in the main kernel with kexec-tools into a specially
2017 reserved region and then later executed after a crash by
2018 kdump/kexec. The crash dump kernel must be compiled to a
2019 memory address not used by the main kernel
2020
2021 For more details see Documentation/kdump/kdump.txt
2022
Eric Miaoe69edc792010-07-05 15:56:50 +02002023config AUTO_ZRELADDR
2024 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002025 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002026 help
2027 ZRELADDR is the physical address where the decompressed kernel
2028 image will be placed. If AUTO_ZRELADDR is selected, the address
2029 will be determined at run-time by masking the current IP with
2030 0xf8000000. This assumes the zImage being placed in the first 128MB
2031 from start of memory.
2032
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033endmenu
2034
Russell Kingac9d7ef2008-08-18 17:26:00 +01002035menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002036
Ben Dooks89c52ed2009-07-30 23:23:24 +01002037if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038source "drivers/cpufreq/Kconfig"
2039
Ben Dooks9d56c022009-07-30 23:23:25 +01002040config CPU_FREQ_S3C
2041 bool
2042 help
2043 Internal configuration node for common cpufreq on Samsung SoC
2044
2045config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002046 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002047 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002048 select CPU_FREQ_S3C
2049 help
2050 This enables the CPUfreq driver for the Samsung S3C24XX family
2051 of CPUs.
2052
2053 For details, take a look at <file:Documentation/cpu-freq>.
2054
2055 If in doubt, say N.
2056
2057config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002058 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002059 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002060 help
2061 Compile in support for changing the PLL frequency from the
2062 S3C24XX series CPUfreq driver. The PLL takes time to settle
2063 after a frequency change, so by default it is not enabled.
2064
2065 This also means that the PLL tables for the selected CPU(s) will
2066 be built which may increase the size of the kernel image.
2067
2068config CPU_FREQ_S3C24XX_DEBUG
2069 bool "Debug CPUfreq Samsung driver core"
2070 depends on CPU_FREQ_S3C24XX
2071 help
2072 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2073
2074config CPU_FREQ_S3C24XX_IODEBUG
2075 bool "Debug CPUfreq Samsung driver IO timing"
2076 depends on CPU_FREQ_S3C24XX
2077 help
2078 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2079
Ben Dookse6d197a2009-07-30 23:23:42 +01002080config CPU_FREQ_S3C24XX_DEBUGFS
2081 bool "Export debugfs for CPUFreq"
2082 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2083 help
2084 Export status information via debugfs.
2085
Linus Torvalds1da177e2005-04-16 15:20:36 -07002086endif
2087
Russell Kingac9d7ef2008-08-18 17:26:00 +01002088source "drivers/cpuidle/Kconfig"
2089
2090endmenu
2091
Linus Torvalds1da177e2005-04-16 15:20:36 -07002092menu "Floating point emulation"
2093
2094comment "At least one emulation must be selected"
2095
2096config FPE_NWFPE
2097 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002098 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002099 ---help---
2100 Say Y to include the NWFPE floating point emulator in the kernel.
2101 This is necessary to run most binaries. Linux does not currently
2102 support floating point hardware so you need to say Y here even if
2103 your machine has an FPA or floating point co-processor podule.
2104
2105 You may say N here if you are going to load the Acorn FPEmulator
2106 early in the bootup.
2107
2108config FPE_NWFPE_XP
2109 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002110 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111 help
2112 Say Y to include 80-bit support in the kernel floating-point
2113 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2114 Note that gcc does not generate 80-bit operations by default,
2115 so in most cases this option only enlarges the size of the
2116 floating point emulator without any good reason.
2117
2118 You almost surely want to say N here.
2119
2120config FPE_FASTFPE
2121 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002122 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123 ---help---
2124 Say Y here to include the FAST floating point emulator in the kernel.
2125 This is an experimental much faster emulator which now also has full
2126 precision for the mantissa. It does not support any exceptions.
2127 It is very simple, and approximately 3-6 times faster than NWFPE.
2128
2129 It should be sufficient for most programs. It may be not suitable
2130 for scientific calculations, but you have to check this for yourself.
2131 If you do not feel you need a faster FP emulation you should better
2132 choose NWFPE.
2133
2134config VFP
2135 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002136 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002137 help
2138 Say Y to include VFP support code in the kernel. This is needed
2139 if your hardware includes a VFP unit.
2140
2141 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2142 release notes and additional status information.
2143
2144 Say N if your target does not have VFP hardware.
2145
Catalin Marinas25ebee02007-09-25 15:22:24 +01002146config VFPv3
2147 bool
2148 depends on VFP
2149 default y if CPU_V7
2150
Catalin Marinasb5872db2008-01-10 19:16:17 +01002151config NEON
2152 bool "Advanced SIMD (NEON) Extension support"
2153 depends on VFPv3 && CPU_V7
2154 help
2155 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2156 Extension.
2157
Linus Torvalds1da177e2005-04-16 15:20:36 -07002158endmenu
2159
2160menu "Userspace binary formats"
2161
2162source "fs/Kconfig.binfmt"
2163
2164config ARTHUR
2165 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002166 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002167 help
2168 Say Y here to include the kernel code necessary if you want to run
2169 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2170 experimental; if this sounds frightening, say N and sleep in peace.
2171 You can also say M here to compile this support as a module (which
2172 will be called arthur).
2173
2174endmenu
2175
2176menu "Power management options"
2177
Russell Kingeceab4a2005-11-15 11:31:41 +00002178source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002179
Johannes Bergf4cb5702007-12-08 02:14:00 +01002180config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002181 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002182 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002183 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002184 def_bool y
2185
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002186config ARM_CPU_SUSPEND
2187 def_bool PM_SLEEP
2188
Linus Torvalds1da177e2005-04-16 15:20:36 -07002189endmenu
2190
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002191source "net/Kconfig"
2192
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002193source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002194
2195source "fs/Kconfig"
2196
Linus Torvalds1da177e2005-04-16 15:20:36 -07002197source "arch/arm/Kconfig.debug"
2198
2199source "security/Kconfig"
2200
2201source "crypto/Kconfig"
2202
2203source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002204
2205source "arch/arm/kvm/Kconfig"