blob: 5918d40bb12e1e84d018752e0a5f46a8a89ee44e [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
Mark Rutland3d067702012-10-30 12:13:42 +00006 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell King171b3f02013-09-12 21:24:42 +01007 select ARCH_HAVE_CUSTOM_GPIO_H
Mark Salterd7018842013-10-07 22:07:58 -04008 select ARCH_MIGHT_HAVE_PC_PARPORT
Peter Zijlstra4badad32014-06-06 19:53:16 +02009 select ARCH_SUPPORTS_ATOMIC_RMW
Kim Phillips017f1612013-11-06 05:15:24 +010010 select ARCH_USE_BUILTIN_BSWAP
Will Deacon0cbad9c2013-10-09 17:19:22 +010011 select ARCH_USE_CMPXCHG_LOCKREF
Russell Kingb1b3f492012-10-06 17:12:25 +010012 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +010013 select BUILDTIME_EXTABLE_SORT if MMU
Russell King171b3f02013-09-12 21:24:42 +010014 select CLONE_BACKWARDS
Russell Kingb1b3f492012-10-06 17:12:25 +010015 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacondce5c9e2013-12-17 19:50:16 +010016 select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010017 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010018 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
Russell King171b3f02013-09-12 21:24:42 +010019 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010020 select GENERIC_IRQ_PROBE
21 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010022 select GENERIC_PCI_IOMAP
Stephen Boyd38ff87f2013-06-01 23:39:40 -070023 select GENERIC_SCHED_CLOCK
Russell Kingb1b3f492012-10-06 17:12:25 +010024 select GENERIC_SMP_IDLE_THREAD
25 select GENERIC_STRNCPY_FROM_USER
26 select GENERIC_STRNLEN_USER
Marc Zyngiera71b0922014-08-26 11:03:18 +010027 select HANDLE_DOMAIN_IRQ
Russell Kingb1b3f492012-10-06 17:12:25 +010028 select HARDIRQS_SW_RESEND
AKASHI Takahiro7a017722014-02-25 18:16:24 +090029 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
Rabin Vincent09f05d82012-02-18 17:52:41 +010030 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060031 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010032 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010033 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010034 select HAVE_BPF_JIT
Russell King51aaf812014-04-22 22:26:27 +010035 select HAVE_CC_STACKPROTECTOR
Russell King171b3f02013-09-12 21:24:42 +010036 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010037 select HAVE_C_RECORDMCOUNT
38 select HAVE_DEBUG_KMEMLEAK
39 select HAVE_DMA_API_DEBUG
40 select HAVE_DMA_ATTRS
41 select HAVE_DMA_CONTIGUOUS if MMU
42 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Will Deacondce5c9e2013-12-17 19:50:16 +010043 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010044 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
45 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
46 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
47 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010048 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
49 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010050 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010051 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070052 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010053 select HAVE_KERNEL_LZMA
54 select HAVE_KERNEL_LZO
55 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010056 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080057 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010058 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010059 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010060 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010061 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010062 select HAVE_PERF_REGS
63 select HAVE_PERF_USER_STACK_DUMP
Will Deacone513f8b2010-06-25 12:24:53 +010064 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010065 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070066 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070067 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010068 select IRQ_FORCED_THREADING
Russell King171b3f02013-09-12 21:24:42 +010069 select MODULES_USE_ELF_REL
Santosh Shilimkar84f452b2013-06-30 00:28:46 -040070 select NO_BOOTMEM
Russell King171b3f02013-09-12 21:24:42 +010071 select OLD_SIGACTION
72 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010073 select PERF_USE_VMALLOC
74 select RTC_LIB
75 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010076 # Above selects are sorted alphabetically; please add new ones
77 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070078 help
79 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000080 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000082 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 Europe. There is an ARM Linux project with a web page at
84 <http://www.arm.linux.org.uk/>.
85
Russell King74facff2011-06-02 11:16:22 +010086config ARM_HAS_SG_CHAIN
Laura Abbott308c09f2014-08-08 14:23:25 -070087 select ARCH_HAS_SG_CHAIN
Russell King74facff2011-06-02 11:16:22 +010088 bool
89
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020090config NEED_SG_DMA_LENGTH
91 bool
92
93config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020094 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010095 select ARM_HAS_SG_CHAIN
96 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020097
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090098if ARM_DMA_USE_IOMMU
99
100config ARM_DMA_IOMMU_ALIGNMENT
101 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
102 range 4 9
103 default 8
104 help
105 DMA mapping framework by default aligns all buffers to the smallest
106 PAGE_SIZE order which is greater than or equal to the requested buffer
107 size. This works well for buffers up to a few hundreds kilobytes, but
108 for larger buffers it just a waste of address space. Drivers which has
109 relatively small addressing window (like 64Mib) might run out of
110 virtual space with just a few allocations.
111
112 With this parameter you can specify the maximum PAGE_SIZE order for
113 DMA IOMMU buffers. Larger buffers will be aligned only to this
114 specified order. The order is expressed as a power of two multiplied
115 by the PAGE_SIZE.
116
117endif
118
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100119config MIGHT_HAVE_PCI
120 bool
121
Ralf Baechle75e71532007-02-09 17:08:58 +0000122config SYS_SUPPORTS_APM_EMULATION
123 bool
124
Linus Walleijbc581772009-09-15 17:30:37 +0100125config HAVE_TCM
126 bool
127 select GENERIC_ALLOCATOR
128
Russell Kinge119bff2010-01-10 17:23:29 +0000129config HAVE_PROC_CPU
130 bool
131
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700132config NO_IOPORT_MAP
Al Viro5ea81762007-02-11 15:41:31 +0000133 bool
Al Viro5ea81762007-02-11 15:41:31 +0000134
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135config EISA
136 bool
137 ---help---
138 The Extended Industry Standard Architecture (EISA) bus was
139 developed as an open alternative to the IBM MicroChannel bus.
140
141 The EISA bus provided some of the features of the IBM MicroChannel
142 bus while maintaining backward compatibility with cards made for
143 the older ISA bus. The EISA bus saw limited use between 1988 and
144 1995 when it was made obsolete by the PCI bus.
145
146 Say Y here if you are building a kernel for an EISA-based machine.
147
148 Otherwise, say N.
149
150config SBUS
151 bool
152
Russell Kingf16fb1e2007-04-28 09:59:37 +0100153config STACKTRACE_SUPPORT
154 bool
155 default y
156
Nicolas Pitref76e9152008-04-24 01:31:46 -0400157config HAVE_LATENCYTOP_SUPPORT
158 bool
159 depends on !SMP
160 default y
161
Russell Kingf16fb1e2007-04-28 09:59:37 +0100162config LOCKDEP_SUPPORT
163 bool
164 default y
165
Russell King7ad1bcb2006-08-27 12:07:02 +0100166config TRACE_IRQFLAGS_SUPPORT
167 bool
168 default y
169
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170config RWSEM_XCHGADD_ALGORITHM
171 bool
Will Deacon8a874112014-05-02 17:06:19 +0100172 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173
David Howellsf0d1b0b2006-12-08 02:37:49 -0800174config ARCH_HAS_ILOG2_U32
175 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800176
177config ARCH_HAS_ILOG2_U64
178 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800179
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100180config ARCH_HAS_BANDGAP
181 bool
182
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800183config GENERIC_HWEIGHT
184 bool
185 default y
186
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187config GENERIC_CALIBRATE_DELAY
188 bool
189 default y
190
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100191config ARCH_MAY_HAVE_PC_FDC
192 bool
193
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800194config ZONE_DMA
195 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800196
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800197config NEED_DMA_MAP_STATE
198 def_bool y
199
David A. Longc7edc9e2014-03-07 11:23:04 -0500200config ARCH_SUPPORTS_UPROBES
201 def_bool y
202
Rob Herring58af4a22012-03-20 14:33:01 -0500203config ARCH_HAS_DMA_SET_COHERENT_MASK
204 bool
205
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206config GENERIC_ISA_DMA
207 bool
208
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209config FIQ
210 bool
211
Rob Herring13a50452012-02-07 09:28:22 -0600212config NEED_RET_TO_USER
213 bool
214
Al Viro034d2f52005-12-19 16:27:59 -0500215config ARCH_MTD_XIP
216 bool
217
Hyok S. Choic760fc12006-03-27 15:18:50 +0100218config VECTORS_BASE
219 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900220 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100221 default DRAM_BASE if REMAP_VECTORS_TO_RAM
222 default 0x00000000
223 help
Russell King19accfd2013-07-04 11:40:32 +0100224 The base address of exception vectors. This must be two pages
225 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100226
Russell Kingdc21af92011-01-04 19:09:43 +0000227config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100228 bool "Patch physical to virtual translations at runtime" if EMBEDDED
229 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100230 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000231 depends on !ARCH_REALVIEW || !SPARSEMEM
232 help
Russell King111e9a52011-05-12 10:02:42 +0100233 Patch phys-to-virt and virt-to-phys translation functions at
234 boot and module load time according to the position of the
235 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000236
Russell King111e9a52011-05-12 10:02:42 +0100237 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100238 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000239
Russell Kingc1beced2011-08-10 10:23:45 +0100240 Only disable this option if you know that you do not require
241 this feature (eg, building a kernel for a single machine) and
242 you need to shrink the kernel to the minimal size.
243
Rob Herringc334bc12012-03-04 22:03:33 -0600244config NEED_MACH_IO_H
245 bool
246 help
247 Select this when mach/io.h is required to provide special
248 definitions for this platform. The need for mach/io.h should
249 be avoided when possible.
250
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400251config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400252 bool
Russell King111e9a52011-05-12 10:02:42 +0100253 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400254 Select this when mach/memory.h is required to provide special
255 definitions for this platform. The need for mach/memory.h should
256 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400257
258config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100259 hex "Physical address of main memory" if MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100260 depends on !ARM_PATCH_PHYS_VIRT
Nicolas Pitre974c0722011-12-02 23:09:42 +0100261 default DRAM_BASE if !MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100262 default 0x00000000 if ARCH_EBSA110 || \
263 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
264 ARCH_FOOTBRIDGE || \
265 ARCH_INTEGRATOR || \
266 ARCH_IOP13XX || \
267 ARCH_KS8695 || \
268 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
269 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
270 default 0x20000000 if ARCH_S5PV210
271 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
272 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
273 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
274 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
275 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400276 help
277 Please provide the physical address corresponding to the
278 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000279
Simon Glass87e040b2011-08-16 23:44:26 +0100280config GENERIC_BUG
281 def_bool y
282 depends on BUG
283
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284source "init/Kconfig"
285
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700286source "kernel/Kconfig.freezer"
287
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288menu "System Type"
289
Hyok S. Choi3c427972009-07-24 12:35:00 +0100290config MMU
291 bool "MMU-based Paged Memory Management Support"
292 default y
293 help
294 Select if you want MMU-based virtualised addressing space
295 support by paged memory management. If unsure, say 'Y'.
296
Russell Kingccf50e22010-03-15 19:03:06 +0000297#
298# The "ARM system type" choice list is ordered alphabetically by option
299# text. Please add new entries in the option alphabetic order.
300#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301choice
302 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100303 default ARCH_VERSATILE if !MMU
304 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305
Rob Herring387798b2012-09-06 13:41:12 -0500306config ARCH_MULTIPLATFORM
307 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100308 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600309 select ARCH_WANT_OPTIONAL_GPIOLIB
Olof Johansson42dc8362014-03-09 12:46:59 -0700310 select ARM_HAS_SG_CHAIN
Rob Herring387798b2012-09-06 13:41:12 -0500311 select ARM_PATCH_PHYS_VIRT
312 select AUTO_ZRELADDR
Rob Herring6d0add42014-04-16 08:42:13 -0500313 select CLKSRC_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600314 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600315 select GENERIC_CLOCKEVENTS
Will Deacon08d38be2014-05-27 23:26:35 +0100316 select MIGHT_HAVE_PCI
Rob Herring387798b2012-09-06 13:41:12 -0500317 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600318 select SPARSE_IRQ
319 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600320
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100321config ARCH_INTEGRATOR
322 bool "ARM Ltd. Integrator family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100323 select ARM_AMBA
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100324 select ARM_PATCH_PHYS_VIRT if MMU
panchaxarife989142013-12-02 16:58:51 +0530325 select AUTO_ZRELADDR
Linus Walleija6131632012-06-11 17:33:12 +0200326 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200327 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100328 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100329 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000330 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100331 select MULTI_IRQ_HANDLER
Russell Kingf4b8b312010-01-14 12:48:06 +0000332 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100333 select SPARSE_IRQ
Linus Walleijd7057e12013-06-15 22:01:13 +0200334 select USE_OF
Linus Walleij2389d502012-10-31 22:04:31 +0100335 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336 help
337 Support for ARM's Integrator platform.
338
339config ARCH_REALVIEW
340 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100341 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100342 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100343 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200344 select COMMON_CLK
345 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100346 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100347 select GPIO_PL061 if GPIOLIB
348 select ICST
349 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000350 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100351 help
352 This enables support for ARM Ltd RealView boards.
353
354config ARCH_VERSATILE
355 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100356 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100357 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100358 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100359 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100360 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100361 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900362 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000363 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000364 select PLAT_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100365 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100366 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100367 help
368 This enables support for ARM Ltd Versatile board.
369
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100370config ARCH_AT91
371 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100372 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100373 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100374 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500375 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800376 select PINCTRL
377 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100378 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100379 This enables support for systems based on Atmel
380 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100381
Russell King93e22562012-10-12 14:20:52 +0100382config ARCH_CLPS711X
383 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400384 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400385 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400386 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100387 select COMMON_CLK
388 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400389 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400390 select MFD_SYSCON
Russell King93e22562012-10-12 14:20:52 +0100391 help
392 Support for Cirrus Logic 711x/721x/731x based boards.
393
Russell King788c9702009-04-26 14:21:59 +0100394config ARCH_GEMINI
395 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100396 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200397 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100398 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200399 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100400 help
401 Support for the Cortina Systems Gemini family SoCs
402
Linus Torvalds1da177e2005-04-16 15:20:36 -0700403config ARCH_EBSA110
404 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100405 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000406 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100407 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600408 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400409 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700410 select NO_IOPORT_MAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 help
412 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000413 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700414 Ethernet interface, two PCMCIA sockets, two serial ports and a
415 parallel port.
416
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100417config ARCH_EFM32
418 bool "Energy Micro efm32"
419 depends on !MMU
420 select ARCH_REQUIRE_GPIOLIB
421 select ARM_NVIC
Russell King51aaf812014-04-22 22:26:27 +0100422 select AUTO_ZRELADDR
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100423 select CLKSRC_OF
424 select COMMON_CLK
425 select CPU_V7M
426 select GENERIC_CLOCKEVENTS
427 select NO_DMA
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700428 select NO_IOPORT_MAP
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100429 select SPARSE_IRQ
430 select USE_OF
431 help
432 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
433 processors.
434
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000435config ARCH_EP93XX
436 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100437 select ARCH_HAS_HOLES_MEMORYMODEL
438 select ARCH_REQUIRE_GPIOLIB
439 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000440 select ARM_AMBA
441 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100442 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100443 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000444 help
445 This enables support for the Cirrus EP93xx series of CPUs.
446
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447config ARCH_FOOTBRIDGE
448 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000449 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700450 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000451 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200452 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600453 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400454 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000455 help
456 Support for systems based on the DC21285 companion chip
457 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100459config ARCH_NETX
460 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100461 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100462 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000463 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100464 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000465 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100466 This enables support for systems based on the Hilscher NetX Soc
467
Russell King3b938be2007-05-12 11:25:44 +0100468config ARCH_IOP13XX
469 bool "IOP13xx-based"
470 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100471 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400472 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600473 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100474 select PCI
475 select PLAT_IOP
476 select VMSPLIT_1G
Thomas Gleixner37ebbcf2014-05-07 15:44:04 +0000477 select SPARSE_IRQ
Russell King3b938be2007-05-12 11:25:44 +0100478 help
479 Support for Intel's IOP13XX (XScale) family of processors.
480
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100481config ARCH_IOP32X
482 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100483 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100484 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000485 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200486 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600487 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100488 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100489 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000490 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100491 Support for Intel's 80219 and IOP32X (XScale) family of
492 processors.
493
494config ARCH_IOP33X
495 bool "IOP33x-based"
496 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100497 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000498 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200499 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600500 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100501 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100502 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100503 help
504 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700505
Russell King3b938be2007-05-12 11:25:44 +0100506config ARCH_IXP4XX
507 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100508 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500509 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100510 select ARCH_REQUIRE_GPIOLIB
Russell King51aaf812014-04-22 22:26:27 +0100511 select ARCH_SUPPORTS_BIG_ENDIAN
Russell King234b6ced2011-05-08 14:09:47 +0100512 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000513 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100514 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100515 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100516 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600517 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200518 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100519 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100520 help
Russell King3b938be2007-05-12 11:25:44 +0100521 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100522
Saeed Bisharaedabd382009-08-06 15:12:43 +0300523config ARCH_DOVE
524 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300525 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100526 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300527 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100528 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100529 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100530 select PINCTRL
531 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200532 select PLAT_ORION_LEGACY
Saeed Bisharaedabd382009-08-06 15:12:43 +0300533 help
534 Support for the Marvell Dove SoC 88AP510
535
Russell King788c9702009-04-26 14:21:59 +0100536config ARCH_MV78XX0
537 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700538 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100539 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100540 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100541 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100542 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200543 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100544 help
545 Support for the following Marvell MV78xx0 series SoCs:
546 MV781x0, MV782x0.
547
548config ARCH_ORION5X
549 bool "Marvell Orion"
550 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700551 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100552 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100553 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100554 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100555 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200556 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100557 help
558 Support for the following Marvell Orion 5x series SoCs:
559 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
560 Orion-2 (5281), Orion-1-90 (6183).
561
562config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500563 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100564 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100565 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100566 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100567 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100568 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800569 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800570 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800571 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800572 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100573 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400574 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100575 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500576 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100577
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100578config ARCH_KS8695
579 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100580 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200581 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100582 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200583 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100584 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100585 help
586 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
587 System-on-Chip devices.
588
Russell King788c9702009-04-26 14:21:59 +0100589config ARCH_W90X900
590 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100591 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100592 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100593 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100594 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100595 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200596 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100597 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
598 At present, the w90x900 has been renamed nuc900, regarding
599 the ARM series product line, you can login the following
600 link address to know more.
601
602 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
603 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400604
Russell King93e22562012-10-12 14:20:52 +0100605config ARCH_LPC32XX
606 bool "NXP LPC32XX"
607 select ARCH_REQUIRE_GPIOLIB
608 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000609 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100610 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100611 select CPU_ARM926T
612 select GENERIC_CLOCKEVENTS
613 select HAVE_IDE
Russell King93e22562012-10-12 14:20:52 +0100614 select USE_OF
615 help
616 Support for the NXP LPC32XX family of processors
617
Linus Torvalds1da177e2005-04-16 15:20:36 -0700618config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700619 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100620 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100621 select ARCH_MTD_XIP
622 select ARCH_REQUIRE_GPIOLIB
623 select ARM_CPU_SUSPEND if PM
624 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100625 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100626 select CLKSRC_MMIO
Robert Jarzmik6f6caea2014-07-14 18:52:03 +0200627 select CLKSRC_OF
Eric Miao981d0f32007-07-24 01:22:43 +0100628 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800629 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100630 select HAVE_IDE
631 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800632 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800633 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000634 help
eric miao2c8086a2007-09-11 19:13:17 -0700635 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600637config ARCH_MSM
638 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700639 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700640 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100641 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800642 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800643 Support for Qualcomm MSM/QSD based systems. This runs on the
644 apps processor of the MSM/QSD and depends on a shared memory
645 interface to the modem processor which runs the baseband
646 stack and controls some vital subsystems
647 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800648
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100649config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100650 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100651 select ARCH_SHMOBILE
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100652 select ARM_PATCH_PHYS_VIRT if MMU
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900653 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100654 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800655 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc22013-02-15 16:02:20 -0800656 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900657 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000658 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000659 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000660 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700661 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200662 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100663 select PM_GENERIC_DOMAINS if PM
664 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000665 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100666 Support for Renesas ARM SoC platforms using a non-multiplatform
667 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
668 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000669
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670config ARCH_RPC
671 bool "RiscPC"
672 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100673 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100674 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000675 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100676 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100677 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200678 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100679 select HAVE_PATA_PLATFORM
680 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600681 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400682 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700683 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100684 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685 help
686 On the Acorn Risc-PC, Linux can support the internal IDE disk and
687 CD-ROM interface, serial and parallel port, and the floppy drive.
688
689config ARCH_SA1100
690 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100691 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700692 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100693 select ARCH_SPARSEMEM_ENABLE
694 select CLKDEV_LOOKUP
695 select CLKSRC_MMIO
696 select CPU_FREQ
697 select CPU_SA1100
698 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200699 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100700 select ISA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400701 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100702 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000703 help
704 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900706config ARCH_S3C24XX
707 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900708 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100709 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100710 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200711 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800712 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900713 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900714 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900715 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100716 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900717 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600718 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900719 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900721 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
722 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
723 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
724 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900725
Ben Dooksa08ab632008-10-21 14:06:39 +0100726config ARCH_S3C64XX
727 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900728 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200729 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100730 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100731 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100732 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200733 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900734 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900735 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800736 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900737 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900738 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900739 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100740 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700741 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100742 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100743 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100744 select S3C_DEV_NAND
745 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900746 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900747 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900748 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100749 help
750 Samsung S3C64XX series based systems
751
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100752config ARCH_DAVINCI
753 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100754 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700755 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100756 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700757 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100758 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100759 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100760 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500761 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530762 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100763 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100764 help
765 Support for TI's DaVinci platform.
766
Tony Lindgrena0694862013-01-11 11:24:20 -0800767config ARCH_OMAP1
768 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600769 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100770 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800771 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100772 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200773 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100774 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100775 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800776 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800777 select HAVE_IDE
778 select IRQ_DOMAIN
779 select NEED_MACH_IO_H if PCCARD
780 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100781 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800782 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800783
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784endchoice
785
Rob Herring387798b2012-09-06 13:41:12 -0500786menu "Multiple platform selection"
787 depends on ARCH_MULTIPLATFORM
788
789comment "CPU Core family selection"
790
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100791config ARCH_MULTI_V4
792 bool "ARMv4 based platforms (FA526)"
793 depends on !ARCH_MULTI_V6_V7
794 select ARCH_MULTI_V4_V5
795 select CPU_FA526
796
Rob Herring387798b2012-09-06 13:41:12 -0500797config ARCH_MULTI_V4T
798 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500799 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100800 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200801 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
802 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
803 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500804
805config ARCH_MULTI_V5
806 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500807 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100808 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100809 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200810 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
811 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500812
813config ARCH_MULTI_V4_V5
814 bool
815
816config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800817 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500818 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600819 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500820
821config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800822 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500823 default y
824 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100825 select CPU_V7
Rob Herring90bc8ac72014-01-31 15:32:02 -0600826 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500827
828config ARCH_MULTI_V6_V7
829 bool
Rob Herring9352b052014-01-31 15:36:10 -0600830 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500831
832config ARCH_MULTI_CPU_AUTO
833 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
834 select ARCH_MULTI_V5
835
836endmenu
837
Rob Herring05e2a3d2013-12-05 10:04:54 -0600838config ARCH_VIRT
839 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600840 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600841 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600842 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600843 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600844
Russell Kingccf50e22010-03-15 19:03:06 +0000845#
846# This is sorted alphabetically by mach-* pathname. However, plat-*
847# Kconfigs may be included either alphabetically (according to the
848# plat- suffix) or along side the corresponding mach-* source.
849#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200850source "arch/arm/mach-mvebu/Kconfig"
851
Russell King95b8f202010-01-14 11:43:54 +0000852source "arch/arm/mach-at91/Kconfig"
853
Anders Berg1d22924e2014-05-23 11:08:35 +0200854source "arch/arm/mach-axxia/Kconfig"
855
Christian Daudt8ac49e02012-11-19 09:46:10 -0800856source "arch/arm/mach-bcm/Kconfig"
857
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200858source "arch/arm/mach-berlin/Kconfig"
859
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860source "arch/arm/mach-clps711x/Kconfig"
861
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300862source "arch/arm/mach-cns3xxx/Kconfig"
863
Russell King95b8f202010-01-14 11:43:54 +0000864source "arch/arm/mach-davinci/Kconfig"
865
866source "arch/arm/mach-dove/Kconfig"
867
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000868source "arch/arm/mach-ep93xx/Kconfig"
869
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870source "arch/arm/mach-footbridge/Kconfig"
871
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200872source "arch/arm/mach-gemini/Kconfig"
873
Rob Herring387798b2012-09-06 13:41:12 -0500874source "arch/arm/mach-highbank/Kconfig"
875
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800876source "arch/arm/mach-hisi/Kconfig"
877
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878source "arch/arm/mach-integrator/Kconfig"
879
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100880source "arch/arm/mach-iop32x/Kconfig"
881
882source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700883
Dan Williams285f5fa2006-12-07 02:59:39 +0100884source "arch/arm/mach-iop13xx/Kconfig"
885
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886source "arch/arm/mach-ixp4xx/Kconfig"
887
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400888source "arch/arm/mach-keystone/Kconfig"
889
Russell King95b8f202010-01-14 11:43:54 +0000890source "arch/arm/mach-ks8695/Kconfig"
891
Russell King95b8f202010-01-14 11:43:54 +0000892source "arch/arm/mach-msm/Kconfig"
893
Jonas Jensen17723fd32013-12-18 13:58:45 +0100894source "arch/arm/mach-moxart/Kconfig"
895
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200896source "arch/arm/mach-mv78xx0/Kconfig"
897
Shawn Guo3995eb82012-09-13 19:48:07 +0800898source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
Matthias Bruggerf682a212014-05-13 01:06:13 +0200900source "arch/arm/mach-mediatek/Kconfig"
901
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800902source "arch/arm/mach-mxs/Kconfig"
903
Russell King95b8f202010-01-14 11:43:54 +0000904source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800905
Russell King95b8f202010-01-14 11:43:54 +0000906source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000907
Daniel Tang9851ca52013-06-11 18:40:17 +1000908source "arch/arm/mach-nspire/Kconfig"
909
Tony Lindgrend48af152005-07-10 19:58:17 +0100910source "arch/arm/plat-omap/Kconfig"
911
912source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913
Tony Lindgren1dbae812005-11-10 14:26:51 +0000914source "arch/arm/mach-omap2/Kconfig"
915
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400916source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400917
Rob Herring387798b2012-09-06 13:41:12 -0500918source "arch/arm/mach-picoxcell/Kconfig"
919
Russell King95b8f202010-01-14 11:43:54 +0000920source "arch/arm/mach-pxa/Kconfig"
921source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700922
Russell King95b8f202010-01-14 11:43:54 +0000923source "arch/arm/mach-mmp/Kconfig"
924
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600925source "arch/arm/mach-qcom/Kconfig"
926
Russell King95b8f202010-01-14 11:43:54 +0000927source "arch/arm/mach-realview/Kconfig"
928
Heiko Stuebnerd63dc0512013-06-02 23:09:41 +0200929source "arch/arm/mach-rockchip/Kconfig"
930
Russell King95b8f202010-01-14 11:43:54 +0000931source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300932
Rob Herring387798b2012-09-06 13:41:12 -0500933source "arch/arm/mach-socfpga/Kconfig"
934
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100935source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100936
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100937source "arch/arm/mach-sti/Kconfig"
938
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900939source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700940
Ben Dooks431107e2010-01-26 10:11:04 +0900941source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100942
Kukjin Kim170f4e42010-02-24 16:40:44 +0900943source "arch/arm/mach-s5pv210/Kconfig"
944
Kukjin Kim83014572011-11-06 13:54:56 +0900945source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -0500946source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900947
Russell King882d01f2010-03-02 23:40:15 +0000948source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949
Maxime Ripard3b526342012-11-08 12:40:16 +0100950source "arch/arm/mach-sunxi/Kconfig"
951
Barry Song156a0992012-08-23 13:41:58 +0800952source "arch/arm/mach-prima2/Kconfig"
953
Erik Gillingc5f80062010-01-21 16:53:02 -0800954source "arch/arm/mach-tegra/Kconfig"
955
Russell King95b8f202010-01-14 11:43:54 +0000956source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957
Russell King95b8f202010-01-14 11:43:54 +0000958source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959
960source "arch/arm/mach-versatile/Kconfig"
961
Russell Kingceade892010-02-11 21:44:53 +0000962source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +0000963source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +0000964
Tony Prisk6f35f9a2012-10-11 20:13:09 +1300965source "arch/arm/mach-vt8500/Kconfig"
966
wanzongshun7ec80dd2008-12-03 03:55:38 +0100967source "arch/arm/mach-w90x900/Kconfig"
968
Josh Cartwright9a45eb62012-11-19 11:38:29 -0600969source "arch/arm/mach-zynq/Kconfig"
970
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971# Definitions to make life easier
972config ARCH_ACORN
973 bool
974
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100975config PLAT_IOP
976 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700977 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7ec2006-09-18 23:12:53 +0100978
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400979config PLAT_ORION
980 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100981 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100982 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100983 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +0200984 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400985
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200986config PLAT_ORION_LEGACY
987 bool
988 select PLAT_ORION
989
Eric Miaobd5ce432009-01-20 12:06:01 +0800990config PLAT_PXA
991 bool
992
Russell Kingf4b8b312010-01-14 12:48:06 +0000993config PLAT_VERSATILE
994 bool
995
Russell Kinge3887712010-01-14 13:30:16 +0000996config ARM_TIMER_SP804
997 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100998 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -0500999 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001000
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001001source "arch/arm/firmware/Kconfig"
1002
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003source arch/arm/mm/Kconfig
1004
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001005config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001006 bool "Enable iWMMXt support"
1007 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1008 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001009 help
1010 Enable support for iWMMXt context switching at run time if
1011 running on a CPU that supports it.
1012
eric miao52108642010-12-13 09:42:34 +01001013config MULTI_IRQ_HANDLER
1014 bool
1015 help
1016 Allow each machine to specify it's own IRQ handler at run time.
1017
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001018if !MMU
1019source "arch/arm/Kconfig-nommu"
1020endif
1021
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001022config PJ4B_ERRATA_4742
1023 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1024 depends on CPU_PJ4B && MACH_ARMADA_370
1025 default y
1026 help
1027 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1028 Event (WFE) IDLE states, a specific timing sensitivity exists between
1029 the retiring WFI/WFE instructions and the newly issued subsequent
1030 instructions. This sensitivity can result in a CPU hang scenario.
1031 Workaround:
1032 The software must insert either a Data Synchronization Barrier (DSB)
1033 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1034 instruction
1035
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001036config ARM_ERRATA_326103
1037 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1038 depends on CPU_V6
1039 help
1040 Executing a SWP instruction to read-only memory does not set bit 11
1041 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1042 treat the access as a read, preventing a COW from occurring and
1043 causing the faulting task to livelock.
1044
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001045config ARM_ERRATA_411920
1046 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001047 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001048 help
1049 Invalidation of the Instruction Cache operation can
1050 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1051 It does not affect the MPCore. This option enables the ARM Ltd.
1052 recommended workaround.
1053
Catalin Marinas7ce236fc2009-04-30 17:06:09 +01001054config ARM_ERRATA_430973
1055 bool "ARM errata: Stale prediction on replaced interworking branch"
1056 depends on CPU_V7
1057 help
1058 This option enables the workaround for the 430973 Cortex-A8
1059 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1060 interworking branch is replaced with another code sequence at the
1061 same virtual address, whether due to self-modifying code or virtual
1062 to physical address re-mapping, Cortex-A8 does not recover from the
1063 stale interworking branch prediction. This results in Cortex-A8
1064 executing the new code sequence in the incorrect ARM or Thumb state.
1065 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1066 and also flushes the branch target cache at every context switch.
1067 Note that setting specific bits in the ACTLR register may not be
1068 available in non-secure mode.
1069
Catalin Marinas855c5512009-04-30 17:06:15 +01001070config ARM_ERRATA_458693
1071 bool "ARM errata: Processor deadlock when a false hazard is created"
1072 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001073 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001074 help
1075 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1076 erratum. For very specific sequences of memory operations, it is
1077 possible for a hazard condition intended for a cache line to instead
1078 be incorrectly associated with a different cache line. This false
1079 hazard might then cause a processor deadlock. The workaround enables
1080 the L1 caching of the NEON accesses and disables the PLD instruction
1081 in the ACTLR register. Note that setting specific bits in the ACTLR
1082 register may not be available in non-secure mode.
1083
Catalin Marinas0516e462009-04-30 17:06:20 +01001084config ARM_ERRATA_460075
1085 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1086 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001087 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001088 help
1089 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1090 erratum. Any asynchronous access to the L2 cache may encounter a
1091 situation in which recent store transactions to the L2 cache are lost
1092 and overwritten with stale memory contents from external memory. The
1093 workaround disables the write-allocate mode for the L2 cache via the
1094 ACTLR register. Note that setting specific bits in the ACTLR register
1095 may not be available in non-secure mode.
1096
Will Deacon9f050272010-09-14 09:51:43 +01001097config ARM_ERRATA_742230
1098 bool "ARM errata: DMB operation may be faulty"
1099 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001100 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001101 help
1102 This option enables the workaround for the 742230 Cortex-A9
1103 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1104 between two write operations may not ensure the correct visibility
1105 ordering of the two writes. This workaround sets a specific bit in
1106 the diagnostic register of the Cortex-A9 which causes the DMB
1107 instruction to behave as a DSB, ensuring the correct behaviour of
1108 the two writes.
1109
Will Deacona672e992010-09-14 09:53:02 +01001110config ARM_ERRATA_742231
1111 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1112 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001113 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001114 help
1115 This option enables the workaround for the 742231 Cortex-A9
1116 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1117 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1118 accessing some data located in the same cache line, may get corrupted
1119 data due to bad handling of the address hazard when the line gets
1120 replaced from one of the CPUs at the same time as another CPU is
1121 accessing it. This workaround sets specific bits in the diagnostic
1122 register of the Cortex-A9 which reduces the linefill issuing
1123 capabilities of the processor.
1124
Jon Medhurst69155792013-06-07 10:35:35 +01001125config ARM_ERRATA_643719
1126 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1127 depends on CPU_V7 && SMP
1128 help
1129 This option enables the workaround for the 643719 Cortex-A9 (prior to
1130 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1131 register returns zero when it should return one. The workaround
1132 corrects this value, ensuring cache maintenance operations which use
1133 it behave as intended and avoiding data corruption.
1134
Will Deaconcdf357f2010-08-05 11:20:51 +01001135config ARM_ERRATA_720789
1136 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001137 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001138 help
1139 This option enables the workaround for the 720789 Cortex-A9 (prior to
1140 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1141 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1142 As a consequence of this erratum, some TLB entries which should be
1143 invalidated are not, resulting in an incoherency in the system page
1144 tables. The workaround changes the TLB flushing routines to invalidate
1145 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001146
1147config ARM_ERRATA_743622
1148 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1149 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001150 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001151 help
1152 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001153 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001154 optimisation in the Cortex-A9 Store Buffer may lead to data
1155 corruption. This workaround sets a specific bit in the diagnostic
1156 register of the Cortex-A9 which disables the Store Buffer
1157 optimisation, preventing the defect from occurring. This has no
1158 visible impact on the overall performance or power consumption of the
1159 processor.
1160
Will Deacon9a27c272011-02-18 16:36:35 +01001161config ARM_ERRATA_751472
1162 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001163 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001164 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001165 help
1166 This option enables the workaround for the 751472 Cortex-A9 (prior
1167 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1168 completion of a following broadcasted operation if the second
1169 operation is received by a CPU before the ICIALLUIS has completed,
1170 potentially leading to corrupted entries in the cache or TLB.
1171
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001172config ARM_ERRATA_754322
1173 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1174 depends on CPU_V7
1175 help
1176 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1177 r3p*) erratum. A speculative memory access may cause a page table walk
1178 which starts prior to an ASID switch but completes afterwards. This
1179 can populate the micro-TLB with a stale entry which may be hit with
1180 the new ASID. This workaround places two dsb instructions in the mm
1181 switching code so that no page table walks can cross the ASID switch.
1182
Will Deacon5dab26a2011-03-04 12:38:54 +01001183config ARM_ERRATA_754327
1184 bool "ARM errata: no automatic Store Buffer drain"
1185 depends on CPU_V7 && SMP
1186 help
1187 This option enables the workaround for the 754327 Cortex-A9 (prior to
1188 r2p0) erratum. The Store Buffer does not have any automatic draining
1189 mechanism and therefore a livelock may occur if an external agent
1190 continuously polls a memory location waiting to observe an update.
1191 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1192 written polling loops from denying visibility of updates to memory.
1193
Catalin Marinas145e10e2011-08-15 11:04:41 +01001194config ARM_ERRATA_364296
1195 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001196 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001197 help
1198 This options enables the workaround for the 364296 ARM1136
1199 r0p2 erratum (possible cache data corruption with
1200 hit-under-miss enabled). It sets the undocumented bit 31 in
1201 the auxiliary control register and the FI bit in the control
1202 register, thus disabling hit-under-miss without putting the
1203 processor into full low interrupt latency mode. ARM11MPCore
1204 is not affected.
1205
Will Deaconf630c1b2011-09-15 11:45:15 +01001206config ARM_ERRATA_764369
1207 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1208 depends on CPU_V7 && SMP
1209 help
1210 This option enables the workaround for erratum 764369
1211 affecting Cortex-A9 MPCore with two or more processors (all
1212 current revisions). Under certain timing circumstances, a data
1213 cache line maintenance operation by MVA targeting an Inner
1214 Shareable memory region may fail to proceed up to either the
1215 Point of Coherency or to the Point of Unification of the
1216 system. This workaround adds a DSB instruction before the
1217 relevant cache maintenance functions and sets a specific bit
1218 in the diagnostic control register of the SCU.
1219
Simon Horman7253b852012-09-28 02:12:45 +01001220config ARM_ERRATA_775420
1221 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1222 depends on CPU_V7
1223 help
1224 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1225 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1226 operation aborts with MMU exception, it might cause the processor
1227 to deadlock. This workaround puts DSB before executing ISB if
1228 an abort may occur on cache maintenance.
1229
Catalin Marinas93dc6882013-03-26 23:35:04 +01001230config ARM_ERRATA_798181
1231 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1232 depends on CPU_V7 && SMP
1233 help
1234 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1235 adequately shooting down all use of the old entries. This
1236 option enables the Linux kernel workaround for this erratum
1237 which sends an IPI to the CPUs that are running the same ASID
1238 as the one being invalidated.
1239
Will Deacon84b65042013-08-20 17:29:55 +01001240config ARM_ERRATA_773022
1241 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1242 depends on CPU_V7
1243 help
1244 This option enables the workaround for the 773022 Cortex-A15
1245 (up to r0p4) erratum. In certain rare sequences of code, the
1246 loop buffer may deliver incorrect instructions. This
1247 workaround disables the loop buffer to avoid the erratum.
1248
Linus Torvalds1da177e2005-04-16 15:20:36 -07001249endmenu
1250
1251source "arch/arm/common/Kconfig"
1252
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253menu "Bus support"
1254
1255config ARM_AMBA
1256 bool
1257
1258config ISA
1259 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 help
1261 Find out whether you have ISA slots on your motherboard. ISA is the
1262 name of a bus system, i.e. the way the CPU talks to the other stuff
1263 inside your box. Other bus systems are PCI, EISA, MicroChannel
1264 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1265 newer boards don't support it. If you have ISA, say Y, otherwise N.
1266
Russell King065909b2006-01-04 15:44:16 +00001267# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268config ISA_DMA
1269 bool
Russell King065909b2006-01-04 15:44:16 +00001270 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271
Russell King065909b2006-01-04 15:44:16 +00001272# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001273config ISA_DMA_API
1274 bool
Al Viro5cae8412005-05-04 05:39:22 +01001275
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001277 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278 help
1279 Find out whether you have a PCI motherboard. PCI is the name of a
1280 bus system, i.e. the way the CPU talks to the other stuff inside
1281 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1282 VESA. If you have PCI, say Y, otherwise N.
1283
Anton Vorontsov52882172010-04-19 13:20:49 +01001284config PCI_DOMAINS
1285 bool
1286 depends on PCI
1287
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001288config PCI_NANOENGINE
1289 bool "BSE nanoEngine PCI support"
1290 depends on SA1100_NANOENGINE
1291 help
1292 Enable PCI on the BSE nanoEngine board.
1293
Matthew Wilcox36e23592007-07-10 10:54:40 -06001294config PCI_SYSCALL
1295 def_bool PCI
1296
Mike Rapoporta0113a92007-11-25 08:55:34 +01001297config PCI_HOST_ITE8152
1298 bool
1299 depends on PCI && MACH_ARMCORE
1300 default y
1301 select DMABOUNCE
1302
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001304source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305
1306source "drivers/pcmcia/Kconfig"
1307
1308endmenu
1309
1310menu "Kernel Features"
1311
Dave Martin3b556582011-12-07 15:38:04 +00001312config HAVE_SMP
1313 bool
1314 help
1315 This option should be selected by machines which have an SMP-
1316 capable CPU.
1317
1318 The only effect of this option is to make the SMP-related
1319 options available to the user for configuration.
1320
Linus Torvalds1da177e2005-04-16 15:20:36 -07001321config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001322 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001323 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001324 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001325 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001326 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001327 help
1328 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001329 a system with only one CPU, say N. If you have a system with more
1330 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001331
Robert Graffham4a474152014-01-23 15:55:29 -08001332 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001333 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001334 you say Y here, the kernel will run on many, but not all,
1335 uniprocessor machines. On a uniprocessor machine, the kernel
1336 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001337
Paul Bolle395cf962011-08-15 02:02:26 +02001338 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001340 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001341
1342 If you don't know what to do here, say N.
1343
Russell Kingf00ec482010-09-04 10:47:48 +01001344config SMP_ON_UP
1345 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001346 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001347 default y
1348 help
1349 SMP kernels contain instructions which fail on non-SMP processors.
1350 Enabling this option allows the kernel to modify itself to make
1351 these instructions safe. Disabling it allows about 1K of space
1352 savings.
1353
1354 If you don't know what to do here, say Y.
1355
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001356config ARM_CPU_TOPOLOGY
1357 bool "Support cpu topology definition"
1358 depends on SMP && CPU_V7
1359 default y
1360 help
1361 Support ARM cpu topology definition. The MPIDR register defines
1362 affinity between processors which is then used to describe the cpu
1363 topology of an ARM System.
1364
1365config SCHED_MC
1366 bool "Multi-core scheduler support"
1367 depends on ARM_CPU_TOPOLOGY
1368 help
1369 Multi-core scheduler support improves the CPU scheduler's decision
1370 making when dealing with multi-core CPU chips at a cost of slightly
1371 increased overhead in some places. If unsure say N here.
1372
1373config SCHED_SMT
1374 bool "SMT scheduler support"
1375 depends on ARM_CPU_TOPOLOGY
1376 help
1377 Improves the CPU scheduler's decision making when dealing with
1378 MultiThreading at a cost of slightly increased overhead in some
1379 places. If unsure say N here.
1380
Russell Kinga8cbcd92009-05-16 11:51:14 +01001381config HAVE_ARM_SCU
1382 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001383 help
1384 This option enables support for the ARM system coherency unit
1385
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001386config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001387 bool "Architected timer support"
1388 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001389 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001390 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001391 help
1392 This option enables support for the ARM architected timer
1393
Russell Kingf32f4ce2009-05-16 12:14:21 +01001394config HAVE_ARM_TWD
1395 bool
1396 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001397 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001398 help
1399 This options enables support for the ARM timer and watchdog unit
1400
Nicolas Pitree8db2882012-04-12 02:45:22 -04001401config MCPM
1402 bool "Multi-Cluster Power Management"
1403 depends on CPU_V7 && SMP
1404 help
1405 This option provides the common power management infrastructure
1406 for (multi-)cluster based systems, such as big.LITTLE based
1407 systems.
1408
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001409config BIG_LITTLE
1410 bool "big.LITTLE support (Experimental)"
1411 depends on CPU_V7 && SMP
1412 select MCPM
1413 help
1414 This option enables support selections for the big.LITTLE
1415 system architecture.
1416
1417config BL_SWITCHER
1418 bool "big.LITTLE switcher support"
1419 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001420 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001421 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001422 help
1423 The big.LITTLE "switcher" provides the core functionality to
1424 transparently handle transition between a cluster of A15's
1425 and a cluster of A7's in a big.LITTLE system.
1426
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001427config BL_SWITCHER_DUMMY_IF
1428 tristate "Simple big.LITTLE switcher user interface"
1429 depends on BL_SWITCHER && DEBUG_KERNEL
1430 help
1431 This is a simple and dummy char dev interface to control
1432 the big.LITTLE switcher core code. It is meant for
1433 debugging purposes only.
1434
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001435choice
1436 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001437 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001438 default VMSPLIT_3G
1439 help
1440 Select the desired split between kernel and user memory.
1441
1442 If you are not absolutely sure what you are doing, leave this
1443 option alone!
1444
1445 config VMSPLIT_3G
1446 bool "3G/1G user/kernel split"
1447 config VMSPLIT_2G
1448 bool "2G/2G user/kernel split"
1449 config VMSPLIT_1G
1450 bool "1G/3G user/kernel split"
1451endchoice
1452
1453config PAGE_OFFSET
1454 hex
Russell King006fa252014-02-26 19:40:46 +00001455 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001456 default 0x40000000 if VMSPLIT_1G
1457 default 0x80000000 if VMSPLIT_2G
1458 default 0xC0000000
1459
Linus Torvalds1da177e2005-04-16 15:20:36 -07001460config NR_CPUS
1461 int "Maximum number of CPUs (2-32)"
1462 range 2 32
1463 depends on SMP
1464 default "4"
1465
Russell Kinga054a812005-11-02 22:24:33 +00001466config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001467 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001468 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001469 help
1470 Say Y here to experiment with turning CPUs off and on. CPUs
1471 can be controlled through /sys/devices/system/cpu.
1472
Will Deacon2bdd4242012-12-12 19:20:52 +00001473config ARM_PSCI
1474 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1475 depends on CPU_V7
1476 help
1477 Say Y here if you want Linux to communicate with system firmware
1478 implementing the PSCI specification for CPU-centric power
1479 management operations described in ARM document number ARM DEN
1480 0022A ("Power State Coordination Interface System Software on
1481 ARM processors").
1482
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001483# The GPIO number here must be sorted by descending number. In case of
1484# a multiplatform kernel, we just want the highest value required by the
1485# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001486config ARCH_NR_GPIO
1487 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001488 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tomasz Figaaa425872014-07-03 13:17:12 +02001489 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1490 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001491 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001492 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001493 default 352 if ARCH_VT8500
Heiko Stuebner7b5da4c2014-05-26 00:13:51 +02001494 default 288 if ARCH_ROCKCHIP
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001495 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001496 default 0
1497 help
1498 Maximum number of GPIOs in the system.
1499
1500 If unsure, leave the default value.
1501
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001502source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001503
Russell Kingc9218b12013-04-27 23:31:10 +01001504config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001505 int
Kukjin Kim070b8b42014-07-02 07:50:15 +09001506 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001507 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001508 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001509 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001510 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001511
1512choice
Russell King47d84682013-09-10 23:47:55 +01001513 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001514 prompt "Timer frequency"
1515
1516config HZ_100
1517 bool "100 Hz"
1518
1519config HZ_200
1520 bool "200 Hz"
1521
1522config HZ_250
1523 bool "250 Hz"
1524
1525config HZ_300
1526 bool "300 Hz"
1527
1528config HZ_500
1529 bool "500 Hz"
1530
1531config HZ_1000
1532 bool "1000 Hz"
1533
1534endchoice
1535
1536config HZ
1537 int
Russell King47d84682013-09-10 23:47:55 +01001538 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001539 default 100 if HZ_100
1540 default 200 if HZ_200
1541 default 250 if HZ_250
1542 default 300 if HZ_300
1543 default 500 if HZ_500
1544 default 1000
1545
1546config SCHED_HRTICK
1547 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001548
Catalin Marinas16c79652009-07-24 12:33:02 +01001549config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001550 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001551 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001552 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001553 select AEABI
1554 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001555 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001556 help
1557 By enabling this option, the kernel will be compiled in
1558 Thumb-2 mode. A compiler/assembler that understand the unified
1559 ARM-Thumb syntax is needed.
1560
1561 If unsure, say N.
1562
Dave Martin6f685c52011-03-03 11:41:12 +01001563config THUMB2_AVOID_R_ARM_THM_JUMP11
1564 bool "Work around buggy Thumb-2 short branch relocations in gas"
1565 depends on THUMB2_KERNEL && MODULES
1566 default y
1567 help
1568 Various binutils versions can resolve Thumb-2 branches to
1569 locally-defined, preemptible global symbols as short-range "b.n"
1570 branch instructions.
1571
1572 This is a problem, because there's no guarantee the final
1573 destination of the symbol, or any candidate locations for a
1574 trampoline, are within range of the branch. For this reason, the
1575 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1576 relocation in modules at all, and it makes little sense to add
1577 support.
1578
1579 The symptom is that the kernel fails with an "unsupported
1580 relocation" error when loading some modules.
1581
1582 Until fixed tools are available, passing
1583 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1584 code which hits this problem, at the cost of a bit of extra runtime
1585 stack usage in some cases.
1586
1587 The problem is described in more detail at:
1588 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1589
1590 Only Thumb-2 kernels are affected.
1591
1592 Unless you are sure your tools don't have this problem, say Y.
1593
Catalin Marinas0becb082009-07-24 12:32:53 +01001594config ARM_ASM_UNIFIED
1595 bool
1596
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001597config AEABI
1598 bool "Use the ARM EABI to compile the kernel"
1599 help
1600 This option allows for the kernel to be compiled using the latest
1601 ARM ABI (aka EABI). This is only useful if you are using a user
1602 space environment that is also compiled with EABI.
1603
1604 Since there are major incompatibilities between the legacy ABI and
1605 EABI, especially with regard to structure member alignment, this
1606 option also changes the kernel syscall calling convention to
1607 disambiguate both ABIs and allow for backward compatibility support
1608 (selected with CONFIG_OABI_COMPAT).
1609
1610 To use this you need GCC version 4.0.0 or later.
1611
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001612config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001613 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001614 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001615 help
1616 This option preserves the old syscall interface along with the
1617 new (ARM EABI) one. It also provides a compatibility layer to
1618 intercept syscalls that have structure arguments which layout
1619 in memory differs between the legacy ABI and the new ARM EABI
1620 (only for non "thumb" binaries). This option adds a tiny
1621 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001622
1623 The seccomp filter system will not be available when this is
1624 selected, since there is no way yet to sensibly distinguish
1625 between calling conventions during filtering.
1626
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001627 If you know you'll be using only pure EABI user space then you
1628 can say N here. If this option is not selected and you attempt
1629 to execute a legacy ABI binary then the result will be
1630 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001631 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001632
Mel Gormaneb335752009-05-13 17:34:48 +01001633config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001634 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001635
Russell King05944d72006-11-30 20:43:51 +00001636config ARCH_SPARSEMEM_ENABLE
1637 bool
1638
Russell King07a2f732008-10-01 21:39:58 +01001639config ARCH_SPARSEMEM_DEFAULT
1640 def_bool ARCH_SPARSEMEM_ENABLE
1641
Russell King05944d72006-11-30 20:43:51 +00001642config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001643 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001644
Will Deacon7b7bf492011-05-19 13:21:14 +01001645config HAVE_ARCH_PFN_VALID
1646 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1647
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001648config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001649 bool "High Memory Support"
1650 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001651 help
1652 The address space of ARM processors is only 4 Gigabytes large
1653 and it has to accommodate user address space, kernel address
1654 space as well as some memory mapped IO. That means that, if you
1655 have a large amount of physical memory and/or IO, not all of the
1656 memory can be "permanently mapped" by the kernel. The physical
1657 memory that is not permanently mapped is called "high memory".
1658
1659 Depending on the selected kernel/user memory split, minimum
1660 vmalloc space and actual amount of RAM, you may not need this
1661 option which should result in a slightly faster kernel.
1662
1663 If unsure, say n.
1664
Russell King65cec8e2009-08-17 20:02:06 +01001665config HIGHPTE
1666 bool "Allocate 2nd-level pagetables from highmem"
1667 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001668
Jamie Iles1b8873a2010-02-02 20:25:44 +01001669config HW_PERF_EVENTS
1670 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001671 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001672 default y
1673 help
1674 Enable hardware performance counter support for perf events. If
1675 disabled, perf events will use software events only.
1676
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001677config SYS_SUPPORTS_HUGETLBFS
1678 def_bool y
1679 depends on ARM_LPAE
1680
Catalin Marinas8d962502012-07-25 14:39:26 +01001681config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1682 def_bool y
1683 depends on ARM_LPAE
1684
Steven Capper4bfab202013-07-26 14:58:22 +01001685config ARCH_WANT_GENERAL_HUGETLB
1686 def_bool y
1687
Dave Hansen3f22ab22005-06-23 00:07:43 -07001688source "mm/Kconfig"
1689
Magnus Dammc1b2d972010-07-05 10:00:11 +01001690config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001691 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1692 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001693 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001694 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001695 default "11"
1696 help
1697 The kernel memory allocator divides physically contiguous memory
1698 blocks into "zones", where each zone is a power of two number of
1699 pages. This option selects the largest power of two that the kernel
1700 keeps in the memory allocator. If you need to allocate very large
1701 blocks of physically contiguous memory, then you may need to
1702 increase this value.
1703
1704 This config option is actually maximum order plus one. For example,
1705 a value of 11 means that the largest free memory block is 2^10 pages.
1706
Linus Torvalds1da177e2005-04-16 15:20:36 -07001707config ALIGNMENT_TRAP
1708 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001709 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001710 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001711 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001712 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001713 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001714 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1715 address divisible by 4. On 32-bit ARM processors, these non-aligned
1716 fetch/store instructions will be emulated in software if you say
1717 here, which has a severe performance impact. This is necessary for
1718 correct operation of some network protocols. With an IP-only
1719 configuration it is safe to say N, otherwise say Y.
1720
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001721config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001722 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1723 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001724 default y if CPU_FEROCEON
1725 help
1726 Implement faster copy_to_user and clear_user methods for CPU
1727 cores where a 8-word STM instruction give significantly higher
1728 memory write throughput than a sequence of individual 32bit stores.
1729
1730 A possible side effect is a slight increase in scheduling latency
1731 between threads sharing the same address space if they invoke
1732 such copy operations with large buffers.
1733
1734 However, if the CPU data cache is using a write-allocate mode,
1735 this option is unlikely to provide any performance gain.
1736
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001737config SECCOMP
1738 bool
1739 prompt "Enable seccomp to safely compute untrusted bytecode"
1740 ---help---
1741 This kernel feature is useful for number crunching applications
1742 that may need to compute untrusted bytecode during their
1743 execution. By using pipes or other transports made available to
1744 the process as file descriptors supporting the read/write
1745 syscalls, it's possible to isolate those applications in
1746 their own address space using seccomp. Once seccomp is
1747 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1748 and the task is only allowed to execute a few safe syscalls
1749 defined by each seccomp mode.
1750
Stefano Stabellini06e62952013-10-15 15:47:14 +00001751config SWIOTLB
1752 def_bool y
1753
1754config IOMMU_HELPER
1755 def_bool SWIOTLB
1756
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001757config XEN_DOM0
1758 def_bool y
1759 depends on XEN
1760
1761config XEN
1762 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001763 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001764 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001765 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001766 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001767 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001768 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001769 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001770 help
1771 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1772
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773endmenu
1774
1775menu "Boot options"
1776
Grant Likely9eb8f672011-04-28 14:27:20 -06001777config USE_OF
1778 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001779 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001780 select OF
1781 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001782 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001783 help
1784 Include support for flattened device tree machine descriptions.
1785
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001786config ATAGS
1787 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1788 default y
1789 help
1790 This is the traditional way of passing data to the kernel at boot
1791 time. If you are solely relying on the flattened device tree (or
1792 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1793 to remove ATAGS support from your kernel binary. If unsure,
1794 leave this to y.
1795
1796config DEPRECATED_PARAM_STRUCT
1797 bool "Provide old way to pass kernel parameters"
1798 depends on ATAGS
1799 help
1800 This was deprecated in 2001 and announced to live on for 5 years.
1801 Some old boot loaders still use this way.
1802
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803# Compressed boot loader in ROM. Yes, we really want to ask about
1804# TEXT and BSS so we preserve their values in the config files.
1805config ZBOOT_ROM_TEXT
1806 hex "Compressed ROM boot loader base address"
1807 default "0"
1808 help
1809 The physical address at which the ROM-able zImage is to be
1810 placed in the target. Platforms which normally make use of
1811 ROM-able zImage formats normally set this to a suitable
1812 value in their defconfig file.
1813
1814 If ZBOOT_ROM is not enabled, this has no effect.
1815
1816config ZBOOT_ROM_BSS
1817 hex "Compressed ROM boot loader BSS address"
1818 default "0"
1819 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001820 The base address of an area of read/write memory in the target
1821 for the ROM-able zImage which must be available while the
1822 decompressor is running. It must be large enough to hold the
1823 entire decompressed kernel plus an additional 128 KiB.
1824 Platforms which normally make use of ROM-able zImage formats
1825 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001826
1827 If ZBOOT_ROM is not enabled, this has no effect.
1828
1829config ZBOOT_ROM
1830 bool "Compressed boot loader in ROM/flash"
1831 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001832 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001833 help
1834 Say Y here if you intend to execute your compressed kernel image
1835 (zImage) directly from ROM or flash. If unsure, say N.
1836
Simon Horman090ab3f2011-04-26 06:29:53 +01001837choice
1838 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001839 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001840 default ZBOOT_ROM_NONE
1841 help
1842 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001843 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001844 kernel image to an MMC or SD card and boot the kernel straight
1845 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001846 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001847 rest the kernel image to RAM.
1848
1849config ZBOOT_ROM_NONE
1850 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1851 help
1852 Do not load image from SD or MMC
1853
Simon Hormanf45b1142011-01-11 04:01:08 +01001854config ZBOOT_ROM_MMCIF
1855 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001856 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001857 Load image from MMCIF hardware block.
1858
1859config ZBOOT_ROM_SH_MOBILE_SDHI
1860 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1861 help
1862 Load image from SDHI hardware block
1863
1864endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001865
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001866config ARM_APPENDED_DTB
1867 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001868 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001869 help
1870 With this option, the boot code will look for a device tree binary
1871 (DTB) appended to zImage
1872 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1873
1874 This is meant as a backward compatibility convenience for those
1875 systems with a bootloader that can't be upgraded to accommodate
1876 the documented boot protocol using a device tree.
1877
1878 Beware that there is very little in terms of protection against
1879 this option being confused by leftover garbage in memory that might
1880 look like a DTB header after a reboot if no actual DTB is appended
1881 to zImage. Do not leave this option active in a production kernel
1882 if you don't intend to always append a DTB. Proper passing of the
1883 location into r2 of a bootloader provided DTB is always preferable
1884 to this option.
1885
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001886config ARM_ATAG_DTB_COMPAT
1887 bool "Supplement the appended DTB with traditional ATAG information"
1888 depends on ARM_APPENDED_DTB
1889 help
1890 Some old bootloaders can't be updated to a DTB capable one, yet
1891 they provide ATAGs with memory configuration, the ramdisk address,
1892 the kernel cmdline string, etc. Such information is dynamically
1893 provided by the bootloader and can't always be stored in a static
1894 DTB. To allow a device tree enabled kernel to be used with such
1895 bootloaders, this option allows zImage to extract the information
1896 from the ATAG list and store it at run time into the appended DTB.
1897
Genoud Richardd0f34a12012-06-26 16:37:59 +01001898choice
1899 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1900 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1901
1902config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1903 bool "Use bootloader kernel arguments if available"
1904 help
1905 Uses the command-line options passed by the boot loader instead of
1906 the device tree bootargs property. If the boot loader doesn't provide
1907 any, the device tree bootargs property will be used.
1908
1909config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1910 bool "Extend with bootloader kernel arguments"
1911 help
1912 The command-line arguments provided by the boot loader will be
1913 appended to the the device tree bootargs property.
1914
1915endchoice
1916
Linus Torvalds1da177e2005-04-16 15:20:36 -07001917config CMDLINE
1918 string "Default kernel command string"
1919 default ""
1920 help
1921 On some architectures (EBSA110 and CATS), there is currently no way
1922 for the boot loader to pass arguments to the kernel. For these
1923 architectures, you should supply some command-line options at build
1924 time by entering them here. As a minimum, you should specify the
1925 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1926
Victor Boivie4394c122011-05-04 17:07:55 +01001927choice
1928 prompt "Kernel command line type" if CMDLINE != ""
1929 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001930 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001931
1932config CMDLINE_FROM_BOOTLOADER
1933 bool "Use bootloader kernel arguments if available"
1934 help
1935 Uses the command-line options passed by the boot loader. If
1936 the boot loader doesn't provide any, the default kernel command
1937 string provided in CMDLINE will be used.
1938
1939config CMDLINE_EXTEND
1940 bool "Extend bootloader kernel arguments"
1941 help
1942 The command-line arguments provided by the boot loader will be
1943 appended to the default kernel command string.
1944
Alexander Holler92d20402010-02-16 19:04:53 +01001945config CMDLINE_FORCE
1946 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001947 help
1948 Always use the default kernel command string, even if the boot
1949 loader passes other arguments to the kernel.
1950 This is useful if you cannot or don't want to change the
1951 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001952endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001953
Linus Torvalds1da177e2005-04-16 15:20:36 -07001954config XIP_KERNEL
1955 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00001956 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001957 help
1958 Execute-In-Place allows the kernel to run from non-volatile storage
1959 directly addressable by the CPU, such as NOR flash. This saves RAM
1960 space since the text section of the kernel is not loaded from flash
1961 to RAM. Read-write sections, such as the data section and stack,
1962 are still copied to RAM. The XIP kernel is not compressed since
1963 it has to run directly from flash, so it will take more space to
1964 store it. The flash address used to link the kernel object files,
1965 and for storing it, is configuration dependent. Therefore, if you
1966 say Y here, you must know the proper physical address where to
1967 store the kernel image depending on your own flash memory usage.
1968
1969 Also note that the make target becomes "make xipImage" rather than
1970 "make zImage" or "make Image". The final kernel binary to put in
1971 ROM memory will be arch/arm/boot/xipImage.
1972
1973 If unsure, say N.
1974
1975config XIP_PHYS_ADDR
1976 hex "XIP Kernel Physical Location"
1977 depends on XIP_KERNEL
1978 default "0x00080000"
1979 help
1980 This is the physical address in your flash memory the kernel will
1981 be linked for and stored to. This address is dependent on your
1982 own flash usage.
1983
Richard Purdiec587e4a2007-02-06 21:29:00 +01001984config KEXEC
1985 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01001986 depends on (!SMP || PM_SLEEP_SMP)
Vivek Goyal12db5562014-08-08 14:26:04 -07001987 select CRYPTO
1988 select CRYPTO_SHA256
Richard Purdiec587e4a2007-02-06 21:29:00 +01001989 help
1990 kexec is a system call that implements the ability to shutdown your
1991 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001992 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001993 you can start any kernel with it, not just Linux.
1994
1995 It is an ongoing process to be certain the hardware in a machine
1996 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02001997 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01001998
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001999config ATAGS_PROC
2000 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002001 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002002 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002003 help
2004 Should the atags used to boot the kernel be exported in an "atags"
2005 file in procfs. Useful with kexec.
2006
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002007config CRASH_DUMP
2008 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002009 help
2010 Generate crash dump after being started by kexec. This should
2011 be normally only set in special crash dump kernels which are
2012 loaded in the main kernel with kexec-tools into a specially
2013 reserved region and then later executed after a crash by
2014 kdump/kexec. The crash dump kernel must be compiled to a
2015 memory address not used by the main kernel
2016
2017 For more details see Documentation/kdump/kdump.txt
2018
Eric Miaoe69edc792010-07-05 15:56:50 +02002019config AUTO_ZRELADDR
2020 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002021 help
2022 ZRELADDR is the physical address where the decompressed kernel
2023 image will be placed. If AUTO_ZRELADDR is selected, the address
2024 will be determined at run-time by masking the current IP with
2025 0xf8000000. This assumes the zImage being placed in the first 128MB
2026 from start of memory.
2027
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028endmenu
2029
Russell Kingac9d7ef2008-08-18 17:26:00 +01002030menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002031
Linus Torvalds1da177e2005-04-16 15:20:36 -07002032source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033
Russell Kingac9d7ef2008-08-18 17:26:00 +01002034source "drivers/cpuidle/Kconfig"
2035
2036endmenu
2037
Linus Torvalds1da177e2005-04-16 15:20:36 -07002038menu "Floating point emulation"
2039
2040comment "At least one emulation must be selected"
2041
2042config FPE_NWFPE
2043 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002044 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002045 ---help---
2046 Say Y to include the NWFPE floating point emulator in the kernel.
2047 This is necessary to run most binaries. Linux does not currently
2048 support floating point hardware so you need to say Y here even if
2049 your machine has an FPA or floating point co-processor podule.
2050
2051 You may say N here if you are going to load the Acorn FPEmulator
2052 early in the bootup.
2053
2054config FPE_NWFPE_XP
2055 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002056 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057 help
2058 Say Y to include 80-bit support in the kernel floating-point
2059 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2060 Note that gcc does not generate 80-bit operations by default,
2061 so in most cases this option only enlarges the size of the
2062 floating point emulator without any good reason.
2063
2064 You almost surely want to say N here.
2065
2066config FPE_FASTFPE
2067 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002068 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002069 ---help---
2070 Say Y here to include the FAST floating point emulator in the kernel.
2071 This is an experimental much faster emulator which now also has full
2072 precision for the mantissa. It does not support any exceptions.
2073 It is very simple, and approximately 3-6 times faster than NWFPE.
2074
2075 It should be sufficient for most programs. It may be not suitable
2076 for scientific calculations, but you have to check this for yourself.
2077 If you do not feel you need a faster FP emulation you should better
2078 choose NWFPE.
2079
2080config VFP
2081 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002082 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002083 help
2084 Say Y to include VFP support code in the kernel. This is needed
2085 if your hardware includes a VFP unit.
2086
2087 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2088 release notes and additional status information.
2089
2090 Say N if your target does not have VFP hardware.
2091
Catalin Marinas25ebee02007-09-25 15:22:24 +01002092config VFPv3
2093 bool
2094 depends on VFP
2095 default y if CPU_V7
2096
Catalin Marinasb5872db2008-01-10 19:16:17 +01002097config NEON
2098 bool "Advanced SIMD (NEON) Extension support"
2099 depends on VFPv3 && CPU_V7
2100 help
2101 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2102 Extension.
2103
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002104config KERNEL_MODE_NEON
2105 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002106 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002107 help
2108 Say Y to include support for NEON in kernel mode.
2109
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110endmenu
2111
2112menu "Userspace binary formats"
2113
2114source "fs/Kconfig.binfmt"
2115
2116config ARTHUR
2117 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002118 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002119 help
2120 Say Y here to include the kernel code necessary if you want to run
2121 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2122 experimental; if this sounds frightening, say N and sleep in peace.
2123 You can also say M here to compile this support as a module (which
2124 will be called arthur).
2125
2126endmenu
2127
2128menu "Power management options"
2129
Russell Kingeceab4a2005-11-15 11:31:41 +00002130source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002131
Johannes Bergf4cb5702007-12-08 02:14:00 +01002132config ARCH_SUSPEND_POSSIBLE
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002133 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002134 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002135 def_bool y
2136
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002137config ARM_CPU_SUSPEND
2138 def_bool PM_SLEEP
2139
Sebastian Capella603fb422014-03-25 01:20:29 +01002140config ARCH_HIBERNATION_POSSIBLE
2141 bool
2142 depends on MMU
2143 default y if ARCH_SUSPEND_POSSIBLE
2144
Linus Torvalds1da177e2005-04-16 15:20:36 -07002145endmenu
2146
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002147source "net/Kconfig"
2148
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002149source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002150
2151source "fs/Kconfig"
2152
Linus Torvalds1da177e2005-04-16 15:20:36 -07002153source "arch/arm/Kconfig.debug"
2154
2155source "security/Kconfig"
2156
2157source "crypto/Kconfig"
2158
2159source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002160
2161source "arch/arm/kvm/Kconfig"