blob: 32cbbd5659023cffe04faf6c97eb7ee5be196585 [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
27 select HARDIRQS_SW_RESEND
AKASHI Takahiro7a017722014-02-25 18:16:24 +090028 select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
Rabin Vincent09f05d82012-02-18 17:52:41 +010029 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060030 select HAVE_ARCH_KGDB
Kees Cook91702172013-11-09 00:51:56 +010031 select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
Wade Farnsworth0693bf62012-04-04 16:19:47 +010032 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010033 select HAVE_BPF_JIT
Russell King51aaf812014-04-22 22:26:27 +010034 select HAVE_CC_STACKPROTECTOR
Russell King171b3f02013-09-12 21:24:42 +010035 select HAVE_CONTEXT_TRACKING
Russell Kingb1b3f492012-10-06 17:12:25 +010036 select HAVE_C_RECORDMCOUNT
37 select HAVE_DEBUG_KMEMLEAK
38 select HAVE_DMA_API_DEBUG
39 select HAVE_DMA_ATTRS
40 select HAVE_DMA_CONTIGUOUS if MMU
41 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
Will Deacondce5c9e2013-12-17 19:50:16 +010042 select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010043 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
44 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
45 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
46 select HAVE_GENERIC_DMA_COHERENT
Russell Kingb1b3f492012-10-06 17:12:25 +010047 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
48 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010049 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010050 select HAVE_KERNEL_GZIP
Kyungsik Leef9b493a2013-07-08 16:01:48 -070051 select HAVE_KERNEL_LZ4
Russell Kingb1b3f492012-10-06 17:12:25 +010052 select HAVE_KERNEL_LZMA
53 select HAVE_KERNEL_LZO
54 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010055 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080056 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010057 select HAVE_MEMBLOCK
Russell King171b3f02013-09-12 21:24:42 +010058 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
Russell Kingb1b3f492012-10-06 17:12:25 +010059 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010060 select HAVE_PERF_EVENTS
Will Deacon49863892013-09-26 12:36:35 +010061 select HAVE_PERF_REGS
62 select HAVE_PERF_USER_STACK_DUMP
Will Deacone513f8b2010-06-25 12:24:53 +010063 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010064 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070065 select HAVE_UID16
Kevin Hilman31c1fc82013-09-16 15:28:22 -070066 select HAVE_VIRT_CPU_ACCOUNTING_GEN
Thomas Gleixnerda0ec6f2013-08-14 20:43:17 +010067 select IRQ_FORCED_THREADING
Russell King171b3f02013-09-12 21:24:42 +010068 select MODULES_USE_ELF_REL
Santosh Shilimkar84f452b2013-06-30 00:28:46 -040069 select NO_BOOTMEM
Russell King171b3f02013-09-12 21:24:42 +010070 select OLD_SIGACTION
71 select OLD_SIGSUSPEND3
Russell Kingb1b3f492012-10-06 17:12:25 +010072 select PERF_USE_VMALLOC
73 select RTC_LIB
74 select SYS_SUPPORTS_APM_EMULATION
Russell King171b3f02013-09-12 21:24:42 +010075 # Above selects are sorted alphabetically; please add new ones
76 # according to that. Thanks.
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 help
78 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000079 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070080 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000081 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070082 Europe. There is an ARM Linux project with a web page at
83 <http://www.arm.linux.org.uk/>.
84
Russell King74facff2011-06-02 11:16:22 +010085config ARM_HAS_SG_CHAIN
Laura Abbott308c09f2014-08-08 14:23:25 -070086 select ARCH_HAS_SG_CHAIN
Russell King74facff2011-06-02 11:16:22 +010087 bool
88
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020089config NEED_SG_DMA_LENGTH
90 bool
91
92config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020093 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010094 select ARM_HAS_SG_CHAIN
95 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020096
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090097if ARM_DMA_USE_IOMMU
98
99config ARM_DMA_IOMMU_ALIGNMENT
100 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
101 range 4 9
102 default 8
103 help
104 DMA mapping framework by default aligns all buffers to the smallest
105 PAGE_SIZE order which is greater than or equal to the requested buffer
106 size. This works well for buffers up to a few hundreds kilobytes, but
107 for larger buffers it just a waste of address space. Drivers which has
108 relatively small addressing window (like 64Mib) might run out of
109 virtual space with just a few allocations.
110
111 With this parameter you can specify the maximum PAGE_SIZE order for
112 DMA IOMMU buffers. Larger buffers will be aligned only to this
113 specified order. The order is expressed as a power of two multiplied
114 by the PAGE_SIZE.
115
116endif
117
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100118config MIGHT_HAVE_PCI
119 bool
120
Ralf Baechle75e71532007-02-09 17:08:58 +0000121config SYS_SUPPORTS_APM_EMULATION
122 bool
123
Linus Walleijbc581772009-09-15 17:30:37 +0100124config HAVE_TCM
125 bool
126 select GENERIC_ALLOCATOR
127
Russell Kinge119bff2010-01-10 17:23:29 +0000128config HAVE_PROC_CPU
129 bool
130
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700131config NO_IOPORT_MAP
Al Viro5ea81762007-02-11 15:41:31 +0000132 bool
Al Viro5ea81762007-02-11 15:41:31 +0000133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134config EISA
135 bool
136 ---help---
137 The Extended Industry Standard Architecture (EISA) bus was
138 developed as an open alternative to the IBM MicroChannel bus.
139
140 The EISA bus provided some of the features of the IBM MicroChannel
141 bus while maintaining backward compatibility with cards made for
142 the older ISA bus. The EISA bus saw limited use between 1988 and
143 1995 when it was made obsolete by the PCI bus.
144
145 Say Y here if you are building a kernel for an EISA-based machine.
146
147 Otherwise, say N.
148
149config SBUS
150 bool
151
Russell Kingf16fb1e2007-04-28 09:59:37 +0100152config STACKTRACE_SUPPORT
153 bool
154 default y
155
Nicolas Pitref76e9152008-04-24 01:31:46 -0400156config HAVE_LATENCYTOP_SUPPORT
157 bool
158 depends on !SMP
159 default y
160
Russell Kingf16fb1e2007-04-28 09:59:37 +0100161config LOCKDEP_SUPPORT
162 bool
163 default y
164
Russell King7ad1bcb2006-08-27 12:07:02 +0100165config TRACE_IRQFLAGS_SUPPORT
166 bool
167 default y
168
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169config RWSEM_XCHGADD_ALGORITHM
170 bool
Will Deacon8a874112014-05-02 17:06:19 +0100171 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172
David Howellsf0d1b0b2006-12-08 02:37:49 -0800173config ARCH_HAS_ILOG2_U32
174 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800175
176config ARCH_HAS_ILOG2_U64
177 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800178
Eduardo Valentin4a1b5732013-06-13 22:58:52 +0100179config ARCH_HAS_BANDGAP
180 bool
181
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800182config GENERIC_HWEIGHT
183 bool
184 default y
185
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186config GENERIC_CALIBRATE_DELAY
187 bool
188 default y
189
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100190config ARCH_MAY_HAVE_PC_FDC
191 bool
192
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800193config ZONE_DMA
194 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800195
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800196config NEED_DMA_MAP_STATE
197 def_bool y
198
David A. Longc7edc9e2014-03-07 11:23:04 -0500199config ARCH_SUPPORTS_UPROBES
200 def_bool y
201
Rob Herring58af4a22012-03-20 14:33:01 -0500202config ARCH_HAS_DMA_SET_COHERENT_MASK
203 bool
204
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205config GENERIC_ISA_DMA
206 bool
207
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208config FIQ
209 bool
210
Rob Herring13a50452012-02-07 09:28:22 -0600211config NEED_RET_TO_USER
212 bool
213
Al Viro034d2f52005-12-19 16:27:59 -0500214config ARCH_MTD_XIP
215 bool
216
Hyok S. Choic760fc12006-03-27 15:18:50 +0100217config VECTORS_BASE
218 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900219 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100220 default DRAM_BASE if REMAP_VECTORS_TO_RAM
221 default 0x00000000
222 help
Russell King19accfd2013-07-04 11:40:32 +0100223 The base address of exception vectors. This must be two pages
224 in size.
Hyok S. Choic760fc12006-03-27 15:18:50 +0100225
Russell Kingdc21af92011-01-04 19:09:43 +0000226config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100227 bool "Patch physical to virtual translations at runtime" if EMBEDDED
228 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100229 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000230 depends on !ARCH_REALVIEW || !SPARSEMEM
231 help
Russell King111e9a52011-05-12 10:02:42 +0100232 Patch phys-to-virt and virt-to-phys translation functions at
233 boot and module load time according to the position of the
234 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000235
Russell King111e9a52011-05-12 10:02:42 +0100236 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100237 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000238
Russell Kingc1beced2011-08-10 10:23:45 +0100239 Only disable this option if you know that you do not require
240 this feature (eg, building a kernel for a single machine) and
241 you need to shrink the kernel to the minimal size.
242
Rob Herringc334bc12012-03-04 22:03:33 -0600243config NEED_MACH_IO_H
244 bool
245 help
246 Select this when mach/io.h is required to provide special
247 definitions for this platform. The need for mach/io.h should
248 be avoided when possible.
249
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400250config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400251 bool
Russell King111e9a52011-05-12 10:02:42 +0100252 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400253 Select this when mach/memory.h is required to provide special
254 definitions for this platform. The need for mach/memory.h should
255 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400256
257config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100258 hex "Physical address of main memory" if MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100259 depends on !ARM_PATCH_PHYS_VIRT
Nicolas Pitre974c0722011-12-02 23:09:42 +0100260 default DRAM_BASE if !MMU
Uwe Kleine-Königc6f54a92014-07-23 20:37:43 +0100261 default 0x00000000 if ARCH_EBSA110 || \
262 EP93XX_SDCE3_SYNC_PHYS_OFFSET || \
263 ARCH_FOOTBRIDGE || \
264 ARCH_INTEGRATOR || \
265 ARCH_IOP13XX || \
266 ARCH_KS8695 || \
267 (ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET)
268 default 0x10000000 if ARCH_OMAP1 || ARCH_RPC
269 default 0x20000000 if ARCH_S5PV210
270 default 0x70000000 if REALVIEW_HIGH_PHYS_OFFSET
271 default 0xc0000000 if EP93XX_SDCE0_PHYS_OFFSET || ARCH_SA1100
272 default 0xd0000000 if EP93XX_SDCE1_PHYS_OFFSET
273 default 0xe0000000 if EP93XX_SDCE2_PHYS_OFFSET
274 default 0xf0000000 if EP93XX_SDCE3_ASYNC_PHYS_OFFSET
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400275 help
276 Please provide the physical address corresponding to the
277 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000278
Simon Glass87e040b2011-08-16 23:44:26 +0100279config GENERIC_BUG
280 def_bool y
281 depends on BUG
282
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283source "init/Kconfig"
284
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700285source "kernel/Kconfig.freezer"
286
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287menu "System Type"
288
Hyok S. Choi3c427972009-07-24 12:35:00 +0100289config MMU
290 bool "MMU-based Paged Memory Management Support"
291 default y
292 help
293 Select if you want MMU-based virtualised addressing space
294 support by paged memory management. If unsure, say 'Y'.
295
Russell Kingccf50e22010-03-15 19:03:06 +0000296#
297# The "ARM system type" choice list is ordered alphabetically by option
298# text. Please add new entries in the option alphabetic order.
299#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300choice
301 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100302 default ARCH_VERSATILE if !MMU
303 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304
Rob Herring387798b2012-09-06 13:41:12 -0500305config ARCH_MULTIPLATFORM
306 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100307 depends on MMU
Rob Herringddb902c2013-11-22 09:29:37 -0600308 select ARCH_WANT_OPTIONAL_GPIOLIB
Olof Johansson42dc8362014-03-09 12:46:59 -0700309 select ARM_HAS_SG_CHAIN
Rob Herring387798b2012-09-06 13:41:12 -0500310 select ARM_PATCH_PHYS_VIRT
311 select AUTO_ZRELADDR
Rob Herring6d0add42014-04-16 08:42:13 -0500312 select CLKSRC_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600313 select COMMON_CLK
Rob Herringddb902c2013-11-22 09:29:37 -0600314 select GENERIC_CLOCKEVENTS
Will Deacon08d38be2014-05-27 23:26:35 +0100315 select MIGHT_HAVE_PCI
Rob Herring387798b2012-09-06 13:41:12 -0500316 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600317 select SPARSE_IRQ
318 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600319
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100320config ARCH_INTEGRATOR
321 bool "ARM Ltd. Integrator family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100322 select ARM_AMBA
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100323 select ARM_PATCH_PHYS_VIRT if MMU
panchaxarife989142013-12-02 16:58:51 +0530324 select AUTO_ZRELADDR
Linus Walleija6131632012-06-11 17:33:12 +0200325 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200326 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100327 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100328 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000329 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100330 select MULTI_IRQ_HANDLER
Russell Kingf4b8b312010-01-14 12:48:06 +0000331 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100332 select SPARSE_IRQ
Linus Walleijd7057e12013-06-15 22:01:13 +0200333 select USE_OF
Linus Walleij2389d502012-10-31 22:04:31 +0100334 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100335 help
336 Support for ARM's Integrator platform.
337
338config ARCH_REALVIEW
339 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100340 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100341 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100342 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200343 select COMMON_CLK
344 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100345 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100346 select GPIO_PL061 if GPIOLIB
347 select ICST
348 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000349 select PLAT_VERSATILE
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100350 help
351 This enables support for ARM Ltd RealView boards.
352
353config ARCH_VERSATILE
354 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100355 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100356 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100357 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100358 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100359 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100360 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900361 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000362 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000363 select PLAT_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100364 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100365 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100366 help
367 This enables support for ARM Ltd Versatile board.
368
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100369config ARCH_AT91
370 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100371 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100372 select CLKDEV_LOOKUP
Nicolas Ferree2615012011-11-22 22:26:09 +0100373 select IRQ_DOMAIN
Rob Herring1ac02d72012-04-04 17:48:04 -0500374 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800375 select PINCTRL
376 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100377 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100378 This enables support for systems based on Atmel
379 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100380
Russell King93e22562012-10-12 14:20:52 +0100381config ARCH_CLPS711X
382 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400383 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400384 select AUTO_ZRELADDR
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400385 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100386 select COMMON_CLK
387 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400388 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400389 select MFD_SYSCON
Russell King93e22562012-10-12 14:20:52 +0100390 help
391 Support for Cirrus Logic 711x/721x/731x based boards.
392
Russell King788c9702009-04-26 14:21:59 +0100393config ARCH_GEMINI
394 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100395 select ARCH_REQUIRE_GPIOLIB
Linus Walleijf3372c02013-10-01 12:57:20 +0200396 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100397 select CPU_FA526
Linus Walleijf3372c02013-10-01 12:57:20 +0200398 select GENERIC_CLOCKEVENTS
Russell King788c9702009-04-26 14:21:59 +0100399 help
400 Support for the Cortina Systems Gemini family SoCs
401
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402config ARCH_EBSA110
403 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100404 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000405 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100406 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600407 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400408 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700409 select NO_IOPORT_MAP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700410 help
411 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000412 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700413 Ethernet interface, two PCMCIA sockets, two serial ports and a
414 parallel port.
415
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100416config ARCH_EFM32
417 bool "Energy Micro efm32"
418 depends on !MMU
419 select ARCH_REQUIRE_GPIOLIB
420 select ARM_NVIC
Russell King51aaf812014-04-22 22:26:27 +0100421 select AUTO_ZRELADDR
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100422 select CLKSRC_OF
423 select COMMON_CLK
424 select CPU_V7M
425 select GENERIC_CLOCKEVENTS
426 select NO_DMA
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700427 select NO_IOPORT_MAP
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +0100428 select SPARSE_IRQ
429 select USE_OF
430 help
431 Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko
432 processors.
433
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000434config ARCH_EP93XX
435 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100436 select ARCH_HAS_HOLES_MEMORYMODEL
437 select ARCH_REQUIRE_GPIOLIB
438 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000439 select ARM_AMBA
440 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100441 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100442 select CPU_ARM920T
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000443 help
444 This enables support for the Cirrus EP93xx series of CPUs.
445
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446config ARCH_FOOTBRIDGE
447 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000448 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000450 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200451 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600452 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400453 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000454 help
455 Support for systems based on the DC21285 companion chip
456 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100458config ARCH_NETX
459 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100460 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100461 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000462 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100463 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000464 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100465 This enables support for systems based on the Hilscher NetX Soc
466
Russell King3b938be2007-05-12 11:25:44 +0100467config ARCH_IOP13XX
468 bool "IOP13xx-based"
469 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100470 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400471 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600472 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100473 select PCI
474 select PLAT_IOP
475 select VMSPLIT_1G
Thomas Gleixner37ebbcf2014-05-07 15:44:04 +0000476 select SPARSE_IRQ
Russell King3b938be2007-05-12 11:25:44 +0100477 help
478 Support for Intel's IOP13XX (XScale) family of processors.
479
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100480config ARCH_IOP32X
481 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100482 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100483 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000484 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200485 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600486 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100487 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100488 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000489 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100490 Support for Intel's 80219 and IOP32X (XScale) family of
491 processors.
492
493config ARCH_IOP33X
494 bool "IOP33x-based"
495 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100496 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000497 select CPU_XSCALE
Linus Walleije9004f52013-09-09 11:59:51 +0200498 select GPIO_IOP
Rob Herring13a50452012-02-07 09:28:22 -0600499 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100500 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100501 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100502 help
503 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504
Russell King3b938be2007-05-12 11:25:44 +0100505config ARCH_IXP4XX
506 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100507 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500508 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100509 select ARCH_REQUIRE_GPIOLIB
Russell King51aaf812014-04-22 22:26:27 +0100510 select ARCH_SUPPORTS_BIG_ENDIAN
Russell King234b6ced2011-05-08 14:09:47 +0100511 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000512 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100513 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100514 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100515 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600516 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200517 select USB_EHCI_BIG_ENDIAN_DESC
Russell King171b3f02013-09-12 21:24:42 +0100518 select USB_EHCI_BIG_ENDIAN_MMIO
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100519 help
Russell King3b938be2007-05-12 11:25:44 +0100520 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100521
Saeed Bisharaedabd382009-08-06 15:12:43 +0300522config ARCH_DOVE
523 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300524 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100525 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300526 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100527 select MIGHT_HAVE_PCI
Russell King171b3f02013-09-12 21:24:42 +0100528 select MVEBU_MBUS
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100529 select PINCTRL
530 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200531 select PLAT_ORION_LEGACY
Saeed Bisharaedabd382009-08-06 15:12:43 +0300532 help
533 Support for the Marvell Dove SoC 88AP510
534
Russell King788c9702009-04-26 14:21:59 +0100535config ARCH_MV78XX0
536 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700537 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100538 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100539 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100540 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100541 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200542 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100543 help
544 Support for the following Marvell MV78xx0 series SoCs:
545 MV781x0, MV782x0.
546
547config ARCH_ORION5X
548 bool "Marvell Orion"
549 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700550 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100551 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100552 select GENERIC_CLOCKEVENTS
Russell King171b3f02013-09-12 21:24:42 +0100553 select MVEBU_MBUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100554 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200555 select PLAT_ORION_LEGACY
Russell King788c9702009-04-26 14:21:59 +0100556 help
557 Support for the following Marvell Orion 5x series SoCs:
558 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
559 Orion-2 (5281), Orion-1-90 (6183).
560
561config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500562 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100563 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100564 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100565 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100566 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100567 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800568 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800569 select IRQ_DOMAIN
Haojian Zhuang0f374562013-04-21 16:53:02 +0800570 select MULTI_IRQ_HANDLER
Axel Lin7c8f86a2012-11-28 14:42:35 +0800571 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100572 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400573 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100574 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500575 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100576
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100577config ARCH_KS8695
578 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100579 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200580 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100581 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200582 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100583 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100584 help
585 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
586 System-on-Chip devices.
587
Russell King788c9702009-04-26 14:21:59 +0100588config ARCH_W90X900
589 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100590 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100591 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100592 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100593 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100594 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200595 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100596 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
597 At present, the w90x900 has been renamed nuc900, regarding
598 the ARM series product line, you can login the following
599 link address to know more.
600
601 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
602 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400603
Russell King93e22562012-10-12 14:20:52 +0100604config ARCH_LPC32XX
605 bool "NXP LPC32XX"
606 select ARCH_REQUIRE_GPIOLIB
607 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000608 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100609 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100610 select CPU_ARM926T
611 select GENERIC_CLOCKEVENTS
612 select HAVE_IDE
Russell King93e22562012-10-12 14:20:52 +0100613 select USE_OF
614 help
615 Support for the NXP LPC32XX family of processors
616
Linus Torvalds1da177e2005-04-16 15:20:36 -0700617config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700618 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100619 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100620 select ARCH_MTD_XIP
621 select ARCH_REQUIRE_GPIOLIB
622 select ARM_CPU_SUSPEND if PM
623 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100624 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100625 select CLKSRC_MMIO
Robert Jarzmik6f6caea2014-07-14 18:52:03 +0200626 select CLKSRC_OF
Eric Miao981d0f32007-07-24 01:22:43 +0100627 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800628 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100629 select HAVE_IDE
630 select MULTI_IRQ_HANDLER
Eric Miaobd5ce432009-01-20 12:06:01 +0800631 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800632 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000633 help
eric miao2c8086a2007-09-11 19:13:17 -0700634 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600636config ARCH_MSM
637 bool "Qualcomm MSM (non-multiplatform)"
Pavel Machek923a0812010-06-02 11:11:12 -0700638 select ARCH_REQUIRE_GPIOLIB
Stephen Boyd8cc7f532013-06-17 10:43:19 -0700639 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100640 select GENERIC_CLOCKEVENTS
Eric Miao49cbe782009-01-20 14:15:18 +0800641 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800642 Support for Qualcomm MSM/QSD based systems. This runs on the
643 apps processor of the MSM/QSD and depends on a shared memory
644 interface to the modem processor which runs the baseband
645 stack and controls some vital subsystems
646 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800647
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100648config ARCH_SHMOBILE_LEGACY
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100649 bool "Renesas ARM SoCs (non-multiplatform)"
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +0100650 select ARCH_SHMOBILE
Uwe Kleine-König91942d12014-07-23 20:37:44 +0100651 select ARM_PATCH_PHYS_VIRT if MMU
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900652 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100653 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800654 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800655 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900656 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000657 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000658 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000659 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700660 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200661 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100662 select PM_GENERIC_DOMAINS if PM
663 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000664 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100665 Support for Renesas ARM SoC platforms using a non-multiplatform
666 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
667 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000668
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669config ARCH_RPC
670 bool "RiscPC"
671 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100672 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100673 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000674 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100675 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100676 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200677 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100678 select HAVE_PATA_PLATFORM
679 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600680 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400681 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700682 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100683 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 help
685 On the Acorn Risc-PC, Linux can support the internal IDE disk and
686 CD-ROM interface, serial and parallel port, and the floppy drive.
687
688config ARCH_SA1100
689 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100690 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700691 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100692 select ARCH_SPARSEMEM_ENABLE
693 select CLKDEV_LOOKUP
694 select CLKSRC_MMIO
695 select CPU_FREQ
696 select CPU_SA1100
697 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200698 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100699 select ISA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400700 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100701 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000702 help
703 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900705config ARCH_S3C24XX
706 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900707 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100708 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100709 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200710 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800711 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900712 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900713 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900714 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100715 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900716 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600717 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900718 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900720 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
721 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
722 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
723 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900724
Ben Dooksa08ab632008-10-21 14:06:39 +0100725config ARCH_S3C64XX
726 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900727 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200728 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100729 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100730 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100731 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200732 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900733 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900734 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800735 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900736 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900737 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900738 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100739 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700740 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100741 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100742 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100743 select S3C_DEV_NAND
744 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900745 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900746 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900747 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100748 help
749 Samsung S3C64XX series based systems
750
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100751config ARCH_DAVINCI
752 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100753 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700754 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100755 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700756 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100757 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100758 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100759 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500760 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530761 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100762 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100763 help
764 Support for TI's DaVinci platform.
765
Tony Lindgrena0694862013-01-11 11:24:20 -0800766config ARCH_OMAP1
767 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600768 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100769 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800770 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100771 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200772 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100773 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100774 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800775 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800776 select HAVE_IDE
777 select IRQ_DOMAIN
778 select NEED_MACH_IO_H if PCCARD
779 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100780 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800781 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800782
Linus Torvalds1da177e2005-04-16 15:20:36 -0700783endchoice
784
Rob Herring387798b2012-09-06 13:41:12 -0500785menu "Multiple platform selection"
786 depends on ARCH_MULTIPLATFORM
787
788comment "CPU Core family selection"
789
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100790config ARCH_MULTI_V4
791 bool "ARMv4 based platforms (FA526)"
792 depends on !ARCH_MULTI_V6_V7
793 select ARCH_MULTI_V4_V5
794 select CPU_FA526
795
Rob Herring387798b2012-09-06 13:41:12 -0500796config ARCH_MULTI_V4T
797 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500798 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100799 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200800 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
801 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
802 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500803
804config ARCH_MULTI_V5
805 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500806 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100807 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100808 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200809 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
810 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500811
812config ARCH_MULTI_V4_V5
813 bool
814
815config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800816 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500817 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600818 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500819
820config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800821 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500822 default y
823 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100824 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600825 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500826
827config ARCH_MULTI_V6_V7
828 bool
Rob Herring9352b052014-01-31 15:36:10 -0600829 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500830
831config ARCH_MULTI_CPU_AUTO
832 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
833 select ARCH_MULTI_V5
834
835endmenu
836
Rob Herring05e2a3d2013-12-05 10:04:54 -0600837config ARCH_VIRT
838 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600839 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600840 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600841 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600842 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600843
Russell Kingccf50e22010-03-15 19:03:06 +0000844#
845# This is sorted alphabetically by mach-* pathname. However, plat-*
846# Kconfigs may be included either alphabetically (according to the
847# plat- suffix) or along side the corresponding mach-* source.
848#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200849source "arch/arm/mach-mvebu/Kconfig"
850
Russell King95b8f202010-01-14 11:43:54 +0000851source "arch/arm/mach-at91/Kconfig"
852
Anders Berg1d22924e2014-05-23 11:08:35 +0200853source "arch/arm/mach-axxia/Kconfig"
854
Christian Daudt8ac49e02012-11-19 09:46:10 -0800855source "arch/arm/mach-bcm/Kconfig"
856
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200857source "arch/arm/mach-berlin/Kconfig"
858
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859source "arch/arm/mach-clps711x/Kconfig"
860
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300861source "arch/arm/mach-cns3xxx/Kconfig"
862
Russell King95b8f202010-01-14 11:43:54 +0000863source "arch/arm/mach-davinci/Kconfig"
864
865source "arch/arm/mach-dove/Kconfig"
866
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000867source "arch/arm/mach-ep93xx/Kconfig"
868
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869source "arch/arm/mach-footbridge/Kconfig"
870
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200871source "arch/arm/mach-gemini/Kconfig"
872
Rob Herring387798b2012-09-06 13:41:12 -0500873source "arch/arm/mach-highbank/Kconfig"
874
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800875source "arch/arm/mach-hisi/Kconfig"
876
Linus Torvalds1da177e2005-04-16 15:20:36 -0700877source "arch/arm/mach-integrator/Kconfig"
878
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100879source "arch/arm/mach-iop32x/Kconfig"
880
881source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700882
Dan Williams285f5fa2006-12-07 02:59:39 +0100883source "arch/arm/mach-iop13xx/Kconfig"
884
Linus Torvalds1da177e2005-04-16 15:20:36 -0700885source "arch/arm/mach-ixp4xx/Kconfig"
886
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400887source "arch/arm/mach-keystone/Kconfig"
888
Russell King95b8f202010-01-14 11:43:54 +0000889source "arch/arm/mach-ks8695/Kconfig"
890
Russell King95b8f202010-01-14 11:43:54 +0000891source "arch/arm/mach-msm/Kconfig"
892
Jonas Jensen17723fd32013-12-18 13:58:45 +0100893source "arch/arm/mach-moxart/Kconfig"
894
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200895source "arch/arm/mach-mv78xx0/Kconfig"
896
Shawn Guo3995eb82012-09-13 19:48:07 +0800897source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700898
Matthias Bruggerf682a212014-05-13 01:06:13 +0200899source "arch/arm/mach-mediatek/Kconfig"
900
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800901source "arch/arm/mach-mxs/Kconfig"
902
Russell King95b8f202010-01-14 11:43:54 +0000903source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800904
Russell King95b8f202010-01-14 11:43:54 +0000905source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000906
Daniel Tang9851ca52013-06-11 18:40:17 +1000907source "arch/arm/mach-nspire/Kconfig"
908
Tony Lindgrend48af152005-07-10 19:58:17 +0100909source "arch/arm/plat-omap/Kconfig"
910
911source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912
Tony Lindgren1dbae812005-11-10 14:26:51 +0000913source "arch/arm/mach-omap2/Kconfig"
914
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400915source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400916
Rob Herring387798b2012-09-06 13:41:12 -0500917source "arch/arm/mach-picoxcell/Kconfig"
918
Russell King95b8f202010-01-14 11:43:54 +0000919source "arch/arm/mach-pxa/Kconfig"
920source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700921
Russell King95b8f202010-01-14 11:43:54 +0000922source "arch/arm/mach-mmp/Kconfig"
923
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600924source "arch/arm/mach-qcom/Kconfig"
925
Russell King95b8f202010-01-14 11:43:54 +0000926source "arch/arm/mach-realview/Kconfig"
927
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200928source "arch/arm/mach-rockchip/Kconfig"
929
Russell King95b8f202010-01-14 11:43:54 +0000930source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300931
Rob Herring387798b2012-09-06 13:41:12 -0500932source "arch/arm/mach-socfpga/Kconfig"
933
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100934source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100935
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100936source "arch/arm/mach-sti/Kconfig"
937
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900938source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700939
Ben Dooks431107e2010-01-26 10:11:04 +0900940source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100941
Kukjin Kim170f4e42010-02-24 16:40:44 +0900942source "arch/arm/mach-s5pv210/Kconfig"
943
Kukjin Kim83014572011-11-06 13:54:56 +0900944source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -0500945source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900946
Russell King882d01f2010-03-02 23:40:15 +0000947source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948
Maxime Ripard3b526342012-11-08 12:40:16 +0100949source "arch/arm/mach-sunxi/Kconfig"
950
Barry Song156a0992012-08-23 13:41:58 +0800951source "arch/arm/mach-prima2/Kconfig"
952
Erik Gillingc5f80062010-01-21 16:53:02 -0800953source "arch/arm/mach-tegra/Kconfig"
954
Russell King95b8f202010-01-14 11:43:54 +0000955source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
959source "arch/arm/mach-versatile/Kconfig"
960
Russell Kingceade892010-02-11 21:44:53 +0000961source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +0000962source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +0000963
Tony Prisk6f35f9a2012-10-11 20:13:09 +1300964source "arch/arm/mach-vt8500/Kconfig"
965
wanzongshun7ec80dd2008-12-03 03:55:38 +0100966source "arch/arm/mach-w90x900/Kconfig"
967
Josh Cartwright9a45eb62012-11-19 11:38:29 -0600968source "arch/arm/mach-zynq/Kconfig"
969
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970# Definitions to make life easier
971config ARCH_ACORN
972 bool
973
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100974config PLAT_IOP
975 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700976 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100977
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400978config PLAT_ORION
979 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100980 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100981 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100982 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +0200983 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400984
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200985config PLAT_ORION_LEGACY
986 bool
987 select PLAT_ORION
988
Eric Miaobd5ce432009-01-20 12:06:01 +0800989config PLAT_PXA
990 bool
991
Russell Kingf4b8b312010-01-14 12:48:06 +0000992config PLAT_VERSATILE
993 bool
994
Russell Kinge3887712010-01-14 13:30:16 +0000995config ARM_TIMER_SP804
996 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100997 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -0500998 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +0000999
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001000source "arch/arm/firmware/Kconfig"
1001
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002source arch/arm/mm/Kconfig
1003
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001004config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001005 bool "Enable iWMMXt support"
1006 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1007 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001008 help
1009 Enable support for iWMMXt context switching at run time if
1010 running on a CPU that supports it.
1011
eric miao52108642010-12-13 09:42:34 +01001012config MULTI_IRQ_HANDLER
1013 bool
1014 help
1015 Allow each machine to specify it's own IRQ handler at run time.
1016
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001017if !MMU
1018source "arch/arm/Kconfig-nommu"
1019endif
1020
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001021config PJ4B_ERRATA_4742
1022 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1023 depends on CPU_PJ4B && MACH_ARMADA_370
1024 default y
1025 help
1026 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1027 Event (WFE) IDLE states, a specific timing sensitivity exists between
1028 the retiring WFI/WFE instructions and the newly issued subsequent
1029 instructions. This sensitivity can result in a CPU hang scenario.
1030 Workaround:
1031 The software must insert either a Data Synchronization Barrier (DSB)
1032 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1033 instruction
1034
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001035config ARM_ERRATA_326103
1036 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1037 depends on CPU_V6
1038 help
1039 Executing a SWP instruction to read-only memory does not set bit 11
1040 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1041 treat the access as a read, preventing a COW from occurring and
1042 causing the faulting task to livelock.
1043
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001044config ARM_ERRATA_411920
1045 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001046 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001047 help
1048 Invalidation of the Instruction Cache operation can
1049 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1050 It does not affect the MPCore. This option enables the ARM Ltd.
1051 recommended workaround.
1052
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001053config ARM_ERRATA_430973
1054 bool "ARM errata: Stale prediction on replaced interworking branch"
1055 depends on CPU_V7
1056 help
1057 This option enables the workaround for the 430973 Cortex-A8
1058 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1059 interworking branch is replaced with another code sequence at the
1060 same virtual address, whether due to self-modifying code or virtual
1061 to physical address re-mapping, Cortex-A8 does not recover from the
1062 stale interworking branch prediction. This results in Cortex-A8
1063 executing the new code sequence in the incorrect ARM or Thumb state.
1064 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1065 and also flushes the branch target cache at every context switch.
1066 Note that setting specific bits in the ACTLR register may not be
1067 available in non-secure mode.
1068
Catalin Marinas855c5512009-04-30 17:06:15 +01001069config ARM_ERRATA_458693
1070 bool "ARM errata: Processor deadlock when a false hazard is created"
1071 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001072 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001073 help
1074 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1075 erratum. For very specific sequences of memory operations, it is
1076 possible for a hazard condition intended for a cache line to instead
1077 be incorrectly associated with a different cache line. This false
1078 hazard might then cause a processor deadlock. The workaround enables
1079 the L1 caching of the NEON accesses and disables the PLD instruction
1080 in the ACTLR register. Note that setting specific bits in the ACTLR
1081 register may not be available in non-secure mode.
1082
Catalin Marinas0516e462009-04-30 17:06:20 +01001083config ARM_ERRATA_460075
1084 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1085 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001086 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001087 help
1088 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1089 erratum. Any asynchronous access to the L2 cache may encounter a
1090 situation in which recent store transactions to the L2 cache are lost
1091 and overwritten with stale memory contents from external memory. The
1092 workaround disables the write-allocate mode for the L2 cache via the
1093 ACTLR register. Note that setting specific bits in the ACTLR register
1094 may not be available in non-secure mode.
1095
Will Deacon9f050272010-09-14 09:51:43 +01001096config ARM_ERRATA_742230
1097 bool "ARM errata: DMB operation may be faulty"
1098 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001099 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001100 help
1101 This option enables the workaround for the 742230 Cortex-A9
1102 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1103 between two write operations may not ensure the correct visibility
1104 ordering of the two writes. This workaround sets a specific bit in
1105 the diagnostic register of the Cortex-A9 which causes the DMB
1106 instruction to behave as a DSB, ensuring the correct behaviour of
1107 the two writes.
1108
Will Deacona672e992010-09-14 09:53:02 +01001109config ARM_ERRATA_742231
1110 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1111 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001112 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001113 help
1114 This option enables the workaround for the 742231 Cortex-A9
1115 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1116 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1117 accessing some data located in the same cache line, may get corrupted
1118 data due to bad handling of the address hazard when the line gets
1119 replaced from one of the CPUs at the same time as another CPU is
1120 accessing it. This workaround sets specific bits in the diagnostic
1121 register of the Cortex-A9 which reduces the linefill issuing
1122 capabilities of the processor.
1123
Jon Medhurst69155792013-06-07 10:35:35 +01001124config ARM_ERRATA_643719
1125 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1126 depends on CPU_V7 && SMP
1127 help
1128 This option enables the workaround for the 643719 Cortex-A9 (prior to
1129 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1130 register returns zero when it should return one. The workaround
1131 corrects this value, ensuring cache maintenance operations which use
1132 it behave as intended and avoiding data corruption.
1133
Will Deaconcdf357f2010-08-05 11:20:51 +01001134config ARM_ERRATA_720789
1135 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001136 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001137 help
1138 This option enables the workaround for the 720789 Cortex-A9 (prior to
1139 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1140 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1141 As a consequence of this erratum, some TLB entries which should be
1142 invalidated are not, resulting in an incoherency in the system page
1143 tables. The workaround changes the TLB flushing routines to invalidate
1144 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001145
1146config ARM_ERRATA_743622
1147 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1148 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001149 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001150 help
1151 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001152 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001153 optimisation in the Cortex-A9 Store Buffer may lead to data
1154 corruption. This workaround sets a specific bit in the diagnostic
1155 register of the Cortex-A9 which disables the Store Buffer
1156 optimisation, preventing the defect from occurring. This has no
1157 visible impact on the overall performance or power consumption of the
1158 processor.
1159
Will Deacon9a27c272011-02-18 16:36:35 +01001160config ARM_ERRATA_751472
1161 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001162 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001163 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001164 help
1165 This option enables the workaround for the 751472 Cortex-A9 (prior
1166 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1167 completion of a following broadcasted operation if the second
1168 operation is received by a CPU before the ICIALLUIS has completed,
1169 potentially leading to corrupted entries in the cache or TLB.
1170
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001171config ARM_ERRATA_754322
1172 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1173 depends on CPU_V7
1174 help
1175 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1176 r3p*) erratum. A speculative memory access may cause a page table walk
1177 which starts prior to an ASID switch but completes afterwards. This
1178 can populate the micro-TLB with a stale entry which may be hit with
1179 the new ASID. This workaround places two dsb instructions in the mm
1180 switching code so that no page table walks can cross the ASID switch.
1181
Will Deacon5dab26a2011-03-04 12:38:54 +01001182config ARM_ERRATA_754327
1183 bool "ARM errata: no automatic Store Buffer drain"
1184 depends on CPU_V7 && SMP
1185 help
1186 This option enables the workaround for the 754327 Cortex-A9 (prior to
1187 r2p0) erratum. The Store Buffer does not have any automatic draining
1188 mechanism and therefore a livelock may occur if an external agent
1189 continuously polls a memory location waiting to observe an update.
1190 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1191 written polling loops from denying visibility of updates to memory.
1192
Catalin Marinas145e10e2011-08-15 11:04:41 +01001193config ARM_ERRATA_364296
1194 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001195 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001196 help
1197 This options enables the workaround for the 364296 ARM1136
1198 r0p2 erratum (possible cache data corruption with
1199 hit-under-miss enabled). It sets the undocumented bit 31 in
1200 the auxiliary control register and the FI bit in the control
1201 register, thus disabling hit-under-miss without putting the
1202 processor into full low interrupt latency mode. ARM11MPCore
1203 is not affected.
1204
Will Deaconf630c1b2011-09-15 11:45:15 +01001205config ARM_ERRATA_764369
1206 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1207 depends on CPU_V7 && SMP
1208 help
1209 This option enables the workaround for erratum 764369
1210 affecting Cortex-A9 MPCore with two or more processors (all
1211 current revisions). Under certain timing circumstances, a data
1212 cache line maintenance operation by MVA targeting an Inner
1213 Shareable memory region may fail to proceed up to either the
1214 Point of Coherency or to the Point of Unification of the
1215 system. This workaround adds a DSB instruction before the
1216 relevant cache maintenance functions and sets a specific bit
1217 in the diagnostic control register of the SCU.
1218
Simon Horman7253b852012-09-28 02:12:45 +01001219config ARM_ERRATA_775420
1220 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1221 depends on CPU_V7
1222 help
1223 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1224 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1225 operation aborts with MMU exception, it might cause the processor
1226 to deadlock. This workaround puts DSB before executing ISB if
1227 an abort may occur on cache maintenance.
1228
Catalin Marinas93dc6882013-03-26 23:35:04 +01001229config ARM_ERRATA_798181
1230 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1231 depends on CPU_V7 && SMP
1232 help
1233 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1234 adequately shooting down all use of the old entries. This
1235 option enables the Linux kernel workaround for this erratum
1236 which sends an IPI to the CPUs that are running the same ASID
1237 as the one being invalidated.
1238
Will Deacon84b65042013-08-20 17:29:55 +01001239config ARM_ERRATA_773022
1240 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1241 depends on CPU_V7
1242 help
1243 This option enables the workaround for the 773022 Cortex-A15
1244 (up to r0p4) erratum. In certain rare sequences of code, the
1245 loop buffer may deliver incorrect instructions. This
1246 workaround disables the loop buffer to avoid the erratum.
1247
Linus Torvalds1da177e2005-04-16 15:20:36 -07001248endmenu
1249
1250source "arch/arm/common/Kconfig"
1251
Linus Torvalds1da177e2005-04-16 15:20:36 -07001252menu "Bus support"
1253
1254config ARM_AMBA
1255 bool
1256
1257config ISA
1258 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001259 help
1260 Find out whether you have ISA slots on your motherboard. ISA is the
1261 name of a bus system, i.e. the way the CPU talks to the other stuff
1262 inside your box. Other bus systems are PCI, EISA, MicroChannel
1263 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1264 newer boards don't support it. If you have ISA, say Y, otherwise N.
1265
Russell King065909b2006-01-04 15:44:16 +00001266# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267config ISA_DMA
1268 bool
Russell King065909b2006-01-04 15:44:16 +00001269 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270
Russell King065909b2006-01-04 15:44:16 +00001271# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001272config ISA_DMA_API
1273 bool
Al Viro5cae8412005-05-04 05:39:22 +01001274
Linus Torvalds1da177e2005-04-16 15:20:36 -07001275config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001276 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277 help
1278 Find out whether you have a PCI motherboard. PCI is the name of a
1279 bus system, i.e. the way the CPU talks to the other stuff inside
1280 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1281 VESA. If you have PCI, say Y, otherwise N.
1282
Anton Vorontsov52882172010-04-19 13:20:49 +01001283config PCI_DOMAINS
1284 bool
1285 depends on PCI
1286
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001287config PCI_NANOENGINE
1288 bool "BSE nanoEngine PCI support"
1289 depends on SA1100_NANOENGINE
1290 help
1291 Enable PCI on the BSE nanoEngine board.
1292
Matthew Wilcox36e23592007-07-10 10:54:40 -06001293config PCI_SYSCALL
1294 def_bool PCI
1295
Mike Rapoporta0113a92007-11-25 08:55:34 +01001296config PCI_HOST_ITE8152
1297 bool
1298 depends on PCI && MACH_ARMCORE
1299 default y
1300 select DMABOUNCE
1301
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001303source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304
1305source "drivers/pcmcia/Kconfig"
1306
1307endmenu
1308
1309menu "Kernel Features"
1310
Dave Martin3b556582011-12-07 15:38:04 +00001311config HAVE_SMP
1312 bool
1313 help
1314 This option should be selected by machines which have an SMP-
1315 capable CPU.
1316
1317 The only effect of this option is to make the SMP-related
1318 options available to the user for configuration.
1319
Linus Torvalds1da177e2005-04-16 15:20:36 -07001320config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001321 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001322 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001323 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001324 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001325 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001326 help
1327 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001328 a system with only one CPU, say N. If you have a system with more
1329 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001330
Robert Graffham4a474152014-01-23 15:55:29 -08001331 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001333 you say Y here, the kernel will run on many, but not all,
1334 uniprocessor machines. On a uniprocessor machine, the kernel
1335 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001336
Paul Bolle395cf962011-08-15 02:02:26 +02001337 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001339 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340
1341 If you don't know what to do here, say N.
1342
Russell Kingf00ec482010-09-04 10:47:48 +01001343config SMP_ON_UP
1344 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001345 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001346 default y
1347 help
1348 SMP kernels contain instructions which fail on non-SMP processors.
1349 Enabling this option allows the kernel to modify itself to make
1350 these instructions safe. Disabling it allows about 1K of space
1351 savings.
1352
1353 If you don't know what to do here, say Y.
1354
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001355config ARM_CPU_TOPOLOGY
1356 bool "Support cpu topology definition"
1357 depends on SMP && CPU_V7
1358 default y
1359 help
1360 Support ARM cpu topology definition. The MPIDR register defines
1361 affinity between processors which is then used to describe the cpu
1362 topology of an ARM System.
1363
1364config SCHED_MC
1365 bool "Multi-core scheduler support"
1366 depends on ARM_CPU_TOPOLOGY
1367 help
1368 Multi-core scheduler support improves the CPU scheduler's decision
1369 making when dealing with multi-core CPU chips at a cost of slightly
1370 increased overhead in some places. If unsure say N here.
1371
1372config SCHED_SMT
1373 bool "SMT scheduler support"
1374 depends on ARM_CPU_TOPOLOGY
1375 help
1376 Improves the CPU scheduler's decision making when dealing with
1377 MultiThreading at a cost of slightly increased overhead in some
1378 places. If unsure say N here.
1379
Russell Kinga8cbcd92009-05-16 11:51:14 +01001380config HAVE_ARM_SCU
1381 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001382 help
1383 This option enables support for the ARM system coherency unit
1384
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001385config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001386 bool "Architected timer support"
1387 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001388 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001389 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001390 help
1391 This option enables support for the ARM architected timer
1392
Russell Kingf32f4ce2009-05-16 12:14:21 +01001393config HAVE_ARM_TWD
1394 bool
1395 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001396 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001397 help
1398 This options enables support for the ARM timer and watchdog unit
1399
Nicolas Pitree8db2882012-04-12 02:45:22 -04001400config MCPM
1401 bool "Multi-Cluster Power Management"
1402 depends on CPU_V7 && SMP
1403 help
1404 This option provides the common power management infrastructure
1405 for (multi-)cluster based systems, such as big.LITTLE based
1406 systems.
1407
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001408config BIG_LITTLE
1409 bool "big.LITTLE support (Experimental)"
1410 depends on CPU_V7 && SMP
1411 select MCPM
1412 help
1413 This option enables support selections for the big.LITTLE
1414 system architecture.
1415
1416config BL_SWITCHER
1417 bool "big.LITTLE switcher support"
1418 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001419 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001420 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001421 help
1422 The big.LITTLE "switcher" provides the core functionality to
1423 transparently handle transition between a cluster of A15's
1424 and a cluster of A7's in a big.LITTLE system.
1425
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001426config BL_SWITCHER_DUMMY_IF
1427 tristate "Simple big.LITTLE switcher user interface"
1428 depends on BL_SWITCHER && DEBUG_KERNEL
1429 help
1430 This is a simple and dummy char dev interface to control
1431 the big.LITTLE switcher core code. It is meant for
1432 debugging purposes only.
1433
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001434choice
1435 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001436 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001437 default VMSPLIT_3G
1438 help
1439 Select the desired split between kernel and user memory.
1440
1441 If you are not absolutely sure what you are doing, leave this
1442 option alone!
1443
1444 config VMSPLIT_3G
1445 bool "3G/1G user/kernel split"
1446 config VMSPLIT_2G
1447 bool "2G/2G user/kernel split"
1448 config VMSPLIT_1G
1449 bool "1G/3G user/kernel split"
1450endchoice
1451
1452config PAGE_OFFSET
1453 hex
Russell King006fa252014-02-26 19:40:46 +00001454 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001455 default 0x40000000 if VMSPLIT_1G
1456 default 0x80000000 if VMSPLIT_2G
1457 default 0xC0000000
1458
Linus Torvalds1da177e2005-04-16 15:20:36 -07001459config NR_CPUS
1460 int "Maximum number of CPUs (2-32)"
1461 range 2 32
1462 depends on SMP
1463 default "4"
1464
Russell Kinga054a812005-11-02 22:24:33 +00001465config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001466 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001467 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001468 help
1469 Say Y here to experiment with turning CPUs off and on. CPUs
1470 can be controlled through /sys/devices/system/cpu.
1471
Will Deacon2bdd4242012-12-12 19:20:52 +00001472config ARM_PSCI
1473 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1474 depends on CPU_V7
1475 help
1476 Say Y here if you want Linux to communicate with system firmware
1477 implementing the PSCI specification for CPU-centric power
1478 management operations described in ARM document number ARM DEN
1479 0022A ("Power State Coordination Interface System Software on
1480 ARM processors").
1481
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001482# The GPIO number here must be sorted by descending number. In case of
1483# a multiplatform kernel, we just want the highest value required by the
1484# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001485config ARCH_NR_GPIO
1486 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001487 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tomasz Figaaa425872014-07-03 13:17:12 +02001488 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1489 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001490 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001491 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001492 default 352 if ARCH_VT8500
Heiko Stuebner7b5da4c2014-05-26 00:13:51 +02001493 default 288 if ARCH_ROCKCHIP
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001494 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001495 default 0
1496 help
1497 Maximum number of GPIOs in the system.
1498
1499 If unsure, leave the default value.
1500
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001501source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502
Russell Kingc9218b12013-04-27 23:31:10 +01001503config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001504 int
Kukjin Kim070b8b42014-07-02 07:50:15 +09001505 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001506 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001507 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001508 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001509 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001510
1511choice
Russell King47d84682013-09-10 23:47:55 +01001512 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001513 prompt "Timer frequency"
1514
1515config HZ_100
1516 bool "100 Hz"
1517
1518config HZ_200
1519 bool "200 Hz"
1520
1521config HZ_250
1522 bool "250 Hz"
1523
1524config HZ_300
1525 bool "300 Hz"
1526
1527config HZ_500
1528 bool "500 Hz"
1529
1530config HZ_1000
1531 bool "1000 Hz"
1532
1533endchoice
1534
1535config HZ
1536 int
Russell King47d84682013-09-10 23:47:55 +01001537 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001538 default 100 if HZ_100
1539 default 200 if HZ_200
1540 default 250 if HZ_250
1541 default 300 if HZ_300
1542 default 500 if HZ_500
1543 default 1000
1544
1545config SCHED_HRTICK
1546 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001547
Catalin Marinas16c79652009-07-24 12:33:02 +01001548config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001549 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001550 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001551 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001552 select AEABI
1553 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001554 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001555 help
1556 By enabling this option, the kernel will be compiled in
1557 Thumb-2 mode. A compiler/assembler that understand the unified
1558 ARM-Thumb syntax is needed.
1559
1560 If unsure, say N.
1561
Dave Martin6f685c52011-03-03 11:41:12 +01001562config THUMB2_AVOID_R_ARM_THM_JUMP11
1563 bool "Work around buggy Thumb-2 short branch relocations in gas"
1564 depends on THUMB2_KERNEL && MODULES
1565 default y
1566 help
1567 Various binutils versions can resolve Thumb-2 branches to
1568 locally-defined, preemptible global symbols as short-range "b.n"
1569 branch instructions.
1570
1571 This is a problem, because there's no guarantee the final
1572 destination of the symbol, or any candidate locations for a
1573 trampoline, are within range of the branch. For this reason, the
1574 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1575 relocation in modules at all, and it makes little sense to add
1576 support.
1577
1578 The symptom is that the kernel fails with an "unsupported
1579 relocation" error when loading some modules.
1580
1581 Until fixed tools are available, passing
1582 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1583 code which hits this problem, at the cost of a bit of extra runtime
1584 stack usage in some cases.
1585
1586 The problem is described in more detail at:
1587 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1588
1589 Only Thumb-2 kernels are affected.
1590
1591 Unless you are sure your tools don't have this problem, say Y.
1592
Catalin Marinas0becb082009-07-24 12:32:53 +01001593config ARM_ASM_UNIFIED
1594 bool
1595
Nicolas Pitre704bdda2006-01-14 16:33:50 +00001596config AEABI
1597 bool "Use the ARM EABI to compile the kernel"
1598 help
1599 This option allows for the kernel to be compiled using the latest
1600 ARM ABI (aka EABI). This is only useful if you are using a user
1601 space environment that is also compiled with EABI.
1602
1603 Since there are major incompatibilities between the legacy ABI and
1604 EABI, especially with regard to structure member alignment, this
1605 option also changes the kernel syscall calling convention to
1606 disambiguate both ABIs and allow for backward compatibility support
1607 (selected with CONFIG_OABI_COMPAT).
1608
1609 To use this you need GCC version 4.0.0 or later.
1610
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001611config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001612 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001613 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001614 help
1615 This option preserves the old syscall interface along with the
1616 new (ARM EABI) one. It also provides a compatibility layer to
1617 intercept syscalls that have structure arguments which layout
1618 in memory differs between the legacy ABI and the new ARM EABI
1619 (only for non "thumb" binaries). This option adds a tiny
1620 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001621
1622 The seccomp filter system will not be available when this is
1623 selected, since there is no way yet to sensibly distinguish
1624 between calling conventions during filtering.
1625
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001626 If you know you'll be using only pure EABI user space then you
1627 can say N here. If this option is not selected and you attempt
1628 to execute a legacy ABI binary then the result will be
1629 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001630 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001631
Mel Gormaneb335752009-05-13 17:34:48 +01001632config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001633 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001634
Russell King05944d72006-11-30 20:43:51 +00001635config ARCH_SPARSEMEM_ENABLE
1636 bool
1637
Russell King07a2f732008-10-01 21:39:58 +01001638config ARCH_SPARSEMEM_DEFAULT
1639 def_bool ARCH_SPARSEMEM_ENABLE
1640
Russell King05944d72006-11-30 20:43:51 +00001641config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001642 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001643
Will Deacon7b7bf492011-05-19 13:21:14 +01001644config HAVE_ARCH_PFN_VALID
1645 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1646
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001647config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001648 bool "High Memory Support"
1649 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001650 help
1651 The address space of ARM processors is only 4 Gigabytes large
1652 and it has to accommodate user address space, kernel address
1653 space as well as some memory mapped IO. That means that, if you
1654 have a large amount of physical memory and/or IO, not all of the
1655 memory can be "permanently mapped" by the kernel. The physical
1656 memory that is not permanently mapped is called "high memory".
1657
1658 Depending on the selected kernel/user memory split, minimum
1659 vmalloc space and actual amount of RAM, you may not need this
1660 option which should result in a slightly faster kernel.
1661
1662 If unsure, say n.
1663
Russell King65cec8e2009-08-17 20:02:06 +01001664config HIGHPTE
1665 bool "Allocate 2nd-level pagetables from highmem"
1666 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001667
Jamie Iles1b8873a2010-02-02 20:25:44 +01001668config HW_PERF_EVENTS
1669 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001670 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001671 default y
1672 help
1673 Enable hardware performance counter support for perf events. If
1674 disabled, perf events will use software events only.
1675
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001676config SYS_SUPPORTS_HUGETLBFS
1677 def_bool y
1678 depends on ARM_LPAE
1679
Catalin Marinas8d962502012-07-25 14:39:26 +01001680config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1681 def_bool y
1682 depends on ARM_LPAE
1683
Steven Capper4bfab202013-07-26 14:58:22 +01001684config ARCH_WANT_GENERAL_HUGETLB
1685 def_bool y
1686
Dave Hansen3f22ab22005-06-23 00:07:43 -07001687source "mm/Kconfig"
1688
Magnus Dammc1b2d972010-07-05 10:00:11 +01001689config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001690 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1691 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001692 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001693 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001694 default "11"
1695 help
1696 The kernel memory allocator divides physically contiguous memory
1697 blocks into "zones", where each zone is a power of two number of
1698 pages. This option selects the largest power of two that the kernel
1699 keeps in the memory allocator. If you need to allocate very large
1700 blocks of physically contiguous memory, then you may need to
1701 increase this value.
1702
1703 This config option is actually maximum order plus one. For example,
1704 a value of 11 means that the largest free memory block is 2^10 pages.
1705
Linus Torvalds1da177e2005-04-16 15:20:36 -07001706config ALIGNMENT_TRAP
1707 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001708 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001709 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001710 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001712 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1714 address divisible by 4. On 32-bit ARM processors, these non-aligned
1715 fetch/store instructions will be emulated in software if you say
1716 here, which has a severe performance impact. This is necessary for
1717 correct operation of some network protocols. With an IP-only
1718 configuration it is safe to say N, otherwise say Y.
1719
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001720config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001721 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1722 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001723 default y if CPU_FEROCEON
1724 help
1725 Implement faster copy_to_user and clear_user methods for CPU
1726 cores where a 8-word STM instruction give significantly higher
1727 memory write throughput than a sequence of individual 32bit stores.
1728
1729 A possible side effect is a slight increase in scheduling latency
1730 between threads sharing the same address space if they invoke
1731 such copy operations with large buffers.
1732
1733 However, if the CPU data cache is using a write-allocate mode,
1734 this option is unlikely to provide any performance gain.
1735
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001736config SECCOMP
1737 bool
1738 prompt "Enable seccomp to safely compute untrusted bytecode"
1739 ---help---
1740 This kernel feature is useful for number crunching applications
1741 that may need to compute untrusted bytecode during their
1742 execution. By using pipes or other transports made available to
1743 the process as file descriptors supporting the read/write
1744 syscalls, it's possible to isolate those applications in
1745 their own address space using seccomp. Once seccomp is
1746 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1747 and the task is only allowed to execute a few safe syscalls
1748 defined by each seccomp mode.
1749
Stefano Stabellini06e62952013-10-15 15:47:14 +00001750config SWIOTLB
1751 def_bool y
1752
1753config IOMMU_HELPER
1754 def_bool SWIOTLB
1755
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001756config XEN_DOM0
1757 def_bool y
1758 depends on XEN
1759
1760config XEN
1761 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001762 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001763 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001764 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001765 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001766 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001767 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001768 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001769 help
1770 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1771
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772endmenu
1773
1774menu "Boot options"
1775
Grant Likely9eb8f672011-04-28 14:27:20 -06001776config USE_OF
1777 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001778 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001779 select OF
1780 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001781 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001782 help
1783 Include support for flattened device tree machine descriptions.
1784
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001785config ATAGS
1786 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1787 default y
1788 help
1789 This is the traditional way of passing data to the kernel at boot
1790 time. If you are solely relying on the flattened device tree (or
1791 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1792 to remove ATAGS support from your kernel binary. If unsure,
1793 leave this to y.
1794
1795config DEPRECATED_PARAM_STRUCT
1796 bool "Provide old way to pass kernel parameters"
1797 depends on ATAGS
1798 help
1799 This was deprecated in 2001 and announced to live on for 5 years.
1800 Some old boot loaders still use this way.
1801
Linus Torvalds1da177e2005-04-16 15:20:36 -07001802# Compressed boot loader in ROM. Yes, we really want to ask about
1803# TEXT and BSS so we preserve their values in the config files.
1804config ZBOOT_ROM_TEXT
1805 hex "Compressed ROM boot loader base address"
1806 default "0"
1807 help
1808 The physical address at which the ROM-able zImage is to be
1809 placed in the target. Platforms which normally make use of
1810 ROM-able zImage formats normally set this to a suitable
1811 value in their defconfig file.
1812
1813 If ZBOOT_ROM is not enabled, this has no effect.
1814
1815config ZBOOT_ROM_BSS
1816 hex "Compressed ROM boot loader BSS address"
1817 default "0"
1818 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001819 The base address of an area of read/write memory in the target
1820 for the ROM-able zImage which must be available while the
1821 decompressor is running. It must be large enough to hold the
1822 entire decompressed kernel plus an additional 128 KiB.
1823 Platforms which normally make use of ROM-able zImage formats
1824 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001825
1826 If ZBOOT_ROM is not enabled, this has no effect.
1827
1828config ZBOOT_ROM
1829 bool "Compressed boot loader in ROM/flash"
1830 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001831 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001832 help
1833 Say Y here if you intend to execute your compressed kernel image
1834 (zImage) directly from ROM or flash. If unsure, say N.
1835
Simon Horman090ab3f2011-04-26 06:29:53 +01001836choice
1837 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001838 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001839 default ZBOOT_ROM_NONE
1840 help
1841 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001842 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001843 kernel image to an MMC or SD card and boot the kernel straight
1844 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001845 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001846 rest the kernel image to RAM.
1847
1848config ZBOOT_ROM_NONE
1849 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1850 help
1851 Do not load image from SD or MMC
1852
Simon Hormanf45b1142011-01-11 04:01:08 +01001853config ZBOOT_ROM_MMCIF
1854 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001855 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001856 Load image from MMCIF hardware block.
1857
1858config ZBOOT_ROM_SH_MOBILE_SDHI
1859 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1860 help
1861 Load image from SDHI hardware block
1862
1863endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001864
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001865config ARM_APPENDED_DTB
1866 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001867 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001868 help
1869 With this option, the boot code will look for a device tree binary
1870 (DTB) appended to zImage
1871 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1872
1873 This is meant as a backward compatibility convenience for those
1874 systems with a bootloader that can't be upgraded to accommodate
1875 the documented boot protocol using a device tree.
1876
1877 Beware that there is very little in terms of protection against
1878 this option being confused by leftover garbage in memory that might
1879 look like a DTB header after a reboot if no actual DTB is appended
1880 to zImage. Do not leave this option active in a production kernel
1881 if you don't intend to always append a DTB. Proper passing of the
1882 location into r2 of a bootloader provided DTB is always preferable
1883 to this option.
1884
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001885config ARM_ATAG_DTB_COMPAT
1886 bool "Supplement the appended DTB with traditional ATAG information"
1887 depends on ARM_APPENDED_DTB
1888 help
1889 Some old bootloaders can't be updated to a DTB capable one, yet
1890 they provide ATAGs with memory configuration, the ramdisk address,
1891 the kernel cmdline string, etc. Such information is dynamically
1892 provided by the bootloader and can't always be stored in a static
1893 DTB. To allow a device tree enabled kernel to be used with such
1894 bootloaders, this option allows zImage to extract the information
1895 from the ATAG list and store it at run time into the appended DTB.
1896
Genoud Richardd0f34a12012-06-26 16:37:59 +01001897choice
1898 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1899 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1900
1901config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1902 bool "Use bootloader kernel arguments if available"
1903 help
1904 Uses the command-line options passed by the boot loader instead of
1905 the device tree bootargs property. If the boot loader doesn't provide
1906 any, the device tree bootargs property will be used.
1907
1908config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1909 bool "Extend with bootloader kernel arguments"
1910 help
1911 The command-line arguments provided by the boot loader will be
1912 appended to the the device tree bootargs property.
1913
1914endchoice
1915
Linus Torvalds1da177e2005-04-16 15:20:36 -07001916config CMDLINE
1917 string "Default kernel command string"
1918 default ""
1919 help
1920 On some architectures (EBSA110 and CATS), there is currently no way
1921 for the boot loader to pass arguments to the kernel. For these
1922 architectures, you should supply some command-line options at build
1923 time by entering them here. As a minimum, you should specify the
1924 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1925
Victor Boivie4394c122011-05-04 17:07:55 +01001926choice
1927 prompt "Kernel command line type" if CMDLINE != ""
1928 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001929 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001930
1931config CMDLINE_FROM_BOOTLOADER
1932 bool "Use bootloader kernel arguments if available"
1933 help
1934 Uses the command-line options passed by the boot loader. If
1935 the boot loader doesn't provide any, the default kernel command
1936 string provided in CMDLINE will be used.
1937
1938config CMDLINE_EXTEND
1939 bool "Extend bootloader kernel arguments"
1940 help
1941 The command-line arguments provided by the boot loader will be
1942 appended to the default kernel command string.
1943
Alexander Holler92d20402010-02-16 19:04:53 +01001944config CMDLINE_FORCE
1945 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001946 help
1947 Always use the default kernel command string, even if the boot
1948 loader passes other arguments to the kernel.
1949 This is useful if you cannot or don't want to change the
1950 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001951endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001952
Linus Torvalds1da177e2005-04-16 15:20:36 -07001953config XIP_KERNEL
1954 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00001955 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001956 help
1957 Execute-In-Place allows the kernel to run from non-volatile storage
1958 directly addressable by the CPU, such as NOR flash. This saves RAM
1959 space since the text section of the kernel is not loaded from flash
1960 to RAM. Read-write sections, such as the data section and stack,
1961 are still copied to RAM. The XIP kernel is not compressed since
1962 it has to run directly from flash, so it will take more space to
1963 store it. The flash address used to link the kernel object files,
1964 and for storing it, is configuration dependent. Therefore, if you
1965 say Y here, you must know the proper physical address where to
1966 store the kernel image depending on your own flash memory usage.
1967
1968 Also note that the make target becomes "make xipImage" rather than
1969 "make zImage" or "make Image". The final kernel binary to put in
1970 ROM memory will be arch/arm/boot/xipImage.
1971
1972 If unsure, say N.
1973
1974config XIP_PHYS_ADDR
1975 hex "XIP Kernel Physical Location"
1976 depends on XIP_KERNEL
1977 default "0x00080000"
1978 help
1979 This is the physical address in your flash memory the kernel will
1980 be linked for and stored to. This address is dependent on your
1981 own flash usage.
1982
Richard Purdiec587e4a2007-02-06 21:29:00 +01001983config KEXEC
1984 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01001985 depends on (!SMP || PM_SLEEP_SMP)
Richard Purdiec587e4a2007-02-06 21:29:00 +01001986 help
1987 kexec is a system call that implements the ability to shutdown your
1988 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001989 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001990 you can start any kernel with it, not just Linux.
1991
1992 It is an ongoing process to be certain the hardware in a machine
1993 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02001994 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01001995
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01001996config ATAGS_PROC
1997 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001998 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01001999 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002000 help
2001 Should the atags used to boot the kernel be exported in an "atags"
2002 file in procfs. Useful with kexec.
2003
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002004config CRASH_DUMP
2005 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002006 help
2007 Generate crash dump after being started by kexec. This should
2008 be normally only set in special crash dump kernels which are
2009 loaded in the main kernel with kexec-tools into a specially
2010 reserved region and then later executed after a crash by
2011 kdump/kexec. The crash dump kernel must be compiled to a
2012 memory address not used by the main kernel
2013
2014 For more details see Documentation/kdump/kdump.txt
2015
Eric Miaoe69edc792010-07-05 15:56:50 +02002016config AUTO_ZRELADDR
2017 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002018 help
2019 ZRELADDR is the physical address where the decompressed kernel
2020 image will be placed. If AUTO_ZRELADDR is selected, the address
2021 will be determined at run-time by masking the current IP with
2022 0xf8000000. This assumes the zImage being placed in the first 128MB
2023 from start of memory.
2024
Linus Torvalds1da177e2005-04-16 15:20:36 -07002025endmenu
2026
Russell Kingac9d7ef2008-08-18 17:26:00 +01002027menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002028
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002030
Russell Kingac9d7ef2008-08-18 17:26:00 +01002031source "drivers/cpuidle/Kconfig"
2032
2033endmenu
2034
Linus Torvalds1da177e2005-04-16 15:20:36 -07002035menu "Floating point emulation"
2036
2037comment "At least one emulation must be selected"
2038
2039config FPE_NWFPE
2040 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002041 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002042 ---help---
2043 Say Y to include the NWFPE floating point emulator in the kernel.
2044 This is necessary to run most binaries. Linux does not currently
2045 support floating point hardware so you need to say Y here even if
2046 your machine has an FPA or floating point co-processor podule.
2047
2048 You may say N here if you are going to load the Acorn FPEmulator
2049 early in the bootup.
2050
2051config FPE_NWFPE_XP
2052 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002053 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002054 help
2055 Say Y to include 80-bit support in the kernel floating-point
2056 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2057 Note that gcc does not generate 80-bit operations by default,
2058 so in most cases this option only enlarges the size of the
2059 floating point emulator without any good reason.
2060
2061 You almost surely want to say N here.
2062
2063config FPE_FASTFPE
2064 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002065 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002066 ---help---
2067 Say Y here to include the FAST floating point emulator in the kernel.
2068 This is an experimental much faster emulator which now also has full
2069 precision for the mantissa. It does not support any exceptions.
2070 It is very simple, and approximately 3-6 times faster than NWFPE.
2071
2072 It should be sufficient for most programs. It may be not suitable
2073 for scientific calculations, but you have to check this for yourself.
2074 If you do not feel you need a faster FP emulation you should better
2075 choose NWFPE.
2076
2077config VFP
2078 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002079 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002080 help
2081 Say Y to include VFP support code in the kernel. This is needed
2082 if your hardware includes a VFP unit.
2083
2084 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2085 release notes and additional status information.
2086
2087 Say N if your target does not have VFP hardware.
2088
Catalin Marinas25ebee02007-09-25 15:22:24 +01002089config VFPv3
2090 bool
2091 depends on VFP
2092 default y if CPU_V7
2093
Catalin Marinasb5872db2008-01-10 19:16:17 +01002094config NEON
2095 bool "Advanced SIMD (NEON) Extension support"
2096 depends on VFPv3 && CPU_V7
2097 help
2098 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2099 Extension.
2100
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002101config KERNEL_MODE_NEON
2102 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002103 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002104 help
2105 Say Y to include support for NEON in kernel mode.
2106
Linus Torvalds1da177e2005-04-16 15:20:36 -07002107endmenu
2108
2109menu "Userspace binary formats"
2110
2111source "fs/Kconfig.binfmt"
2112
2113config ARTHUR
2114 tristate "RISC OS personality"
Nicolas Pitre704bdda2006-01-14 16:33:50 +00002115 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116 help
2117 Say Y here to include the kernel code necessary if you want to run
2118 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2119 experimental; if this sounds frightening, say N and sleep in peace.
2120 You can also say M here to compile this support as a module (which
2121 will be called arthur).
2122
2123endmenu
2124
2125menu "Power management options"
2126
Russell Kingeceab4a2005-11-15 11:31:41 +00002127source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002128
Johannes Bergf4cb5702007-12-08 02:14:00 +01002129config ARCH_SUSPEND_POSSIBLE
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002130 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002131 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002132 def_bool y
2133
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002134config ARM_CPU_SUSPEND
2135 def_bool PM_SLEEP
2136
Sebastian Capella603fb422014-03-25 01:20:29 +01002137config ARCH_HIBERNATION_POSSIBLE
2138 bool
2139 depends on MMU
2140 default y if ARCH_SUSPEND_POSSIBLE
2141
Linus Torvalds1da177e2005-04-16 15:20:36 -07002142endmenu
2143
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002144source "net/Kconfig"
2145
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002146source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002147
2148source "fs/Kconfig"
2149
Linus Torvalds1da177e2005-04-16 15:20:36 -07002150source "arch/arm/Kconfig.debug"
2151
2152source "security/Kconfig"
2153
2154source "crypto/Kconfig"
2155
2156source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002157
2158source "arch/arm/kvm/Kconfig"