blob: bd8beaebf0ec1db57eca052e4c68a94d830542ec [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
Magnus Damm0ed82bc2014-08-25 12:45:41 +0900653 select CPU_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100654 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800655 select HAVE_ARM_SCU if SMP
Stephen Boyda894fcc2013-02-15 16:02:20 -0800656 select HAVE_ARM_TWD if SMP
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900657 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000658 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000659 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000660 select MULTI_IRQ_HANDLER
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700661 select NO_IOPORT_MAP
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200662 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100663 select PM_GENERIC_DOMAINS if PM
Magnus Damm0cdc23d2014-08-25 12:45:50 +0900664 select SH_CLK_CPG
Russell Kingb1b3f492012-10-06 17:12:25 +0100665 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000666 help
Laurent Pinchart0d9fd612013-11-28 17:27:29 +0100667 Support for Renesas ARM SoC platforms using a non-multiplatform
668 kernel. This includes the SH-Mobile, R-Mobile, EMMA-Mobile, R-Car
669 and RZ families.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000670
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671config ARCH_RPC
672 bool "RiscPC"
673 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100674 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100675 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000676 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmannfa04e202014-02-26 17:39:12 +0100677 select CPU_SA110
Russell Kingb1b3f492012-10-06 17:12:25 +0100678 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200679 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100680 select HAVE_PATA_PLATFORM
681 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600682 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400683 select NEED_MACH_MEMORY_H
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700684 select NO_IOPORT_MAP
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100685 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700686 help
687 On the Acorn Risc-PC, Linux can support the internal IDE disk and
688 CD-ROM interface, serial and parallel port, and the floppy drive.
689
690config ARCH_SA1100
691 bool "SA1100-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100692 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700693 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100694 select ARCH_SPARSEMEM_ENABLE
695 select CLKDEV_LOOKUP
696 select CLKSRC_MMIO
697 select CPU_FREQ
698 select CPU_SA1100
699 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200700 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100701 select ISA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400702 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100703 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000704 help
705 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900707config ARCH_S3C24XX
708 bool "Samsung S3C24XX SoCs"
Kukjin Kim53650432013-04-04 09:04:30 +0900709 select ARCH_REQUIRE_GPIOLIB
Arnd Bergmann335cce72014-03-13 14:11:16 +0100710 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100711 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200712 select CLKSRC_SAMSUNG_PWM
Romain Naour7f78b6e2013-01-09 18:47:04 -0800713 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900714 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900715 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900716 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100717 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900718 select MULTI_IRQ_HANDLER
Rob Herringc334bc12012-03-04 22:03:33 -0600719 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900720 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700721 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900722 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
723 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
724 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
725 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900726
Ben Dooksa08ab632008-10-21 14:06:39 +0100727config ARCH_S3C64XX
728 bool "Samsung S3C64XX"
Ben Dooks89f0ce72010-01-26 15:49:15 +0900729 select ARCH_REQUIRE_GPIOLIB
Tomasz Figa1db02872013-10-16 21:10:54 +0200730 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100731 select ARM_VIC
Arnd Bergmann335cce72014-03-13 14:11:16 +0100732 select ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100733 select CLKDEV_LOOKUP
Tomasz Figa42805062013-04-28 02:25:01 +0200734 select CLKSRC_SAMSUNG_PWM
Pankaj Dubeyccecba32014-05-08 13:07:09 +0900735 select COMMON_CLK_SAMSUNG
Tomasz Figa70bacad2013-10-21 06:56:51 +0900736 select CPU_V6K
Romain Naour04a49b72013-01-09 18:47:04 -0800737 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900738 select GPIO_SAMSUNG
Kukjin Kim20676c12010-11-13 16:08:32 +0900739 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900740 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100741 select HAVE_TCM
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700742 select NO_IOPORT_MAP
Russell Kingb1b3f492012-10-06 17:12:25 +0100743 select PLAT_SAMSUNG
Arnd Bergmann4ab75a32014-03-13 14:35:38 +0100744 select PM_GENERIC_DOMAINS if PM
Russell Kingb1b3f492012-10-06 17:12:25 +0100745 select S3C_DEV_NAND
746 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900747 select SAMSUNG_ATAGS
Tomasz Figa6e2d9e92013-10-06 09:06:27 +0900748 select SAMSUNG_WAKEMASK
Tomasz Figa88f59732013-06-17 23:45:37 +0900749 select SAMSUNG_WDT_RESET
Ben Dooksa08ab632008-10-21 14:06:39 +0100750 help
751 Samsung S3C64XX series based systems
752
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100753config ARCH_DAVINCI
754 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100755 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700756 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100757 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700758 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100759 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100760 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100761 select HAVE_IDE
Matt Porter3ad7a422013-03-06 11:15:31 -0500762 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530763 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100764 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100765 help
766 Support for TI's DaVinci platform.
767
Tony Lindgrena0694862013-01-11 11:24:20 -0800768config ARCH_OMAP1
769 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600770 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100771 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800772 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100773 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200774 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100775 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100776 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800777 select GENERIC_IRQ_CHIP
Tony Lindgrena0694862013-01-11 11:24:20 -0800778 select HAVE_IDE
779 select IRQ_DOMAIN
780 select NEED_MACH_IO_H if PCCARD
781 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100782 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800783 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800784
Linus Torvalds1da177e2005-04-16 15:20:36 -0700785endchoice
786
Rob Herring387798b2012-09-06 13:41:12 -0500787menu "Multiple platform selection"
788 depends on ARCH_MULTIPLATFORM
789
790comment "CPU Core family selection"
791
Arnd Bergmannf8afae42014-03-25 22:19:00 +0100792config ARCH_MULTI_V4
793 bool "ARMv4 based platforms (FA526)"
794 depends on !ARCH_MULTI_V6_V7
795 select ARCH_MULTI_V4_V5
796 select CPU_FA526
797
Rob Herring387798b2012-09-06 13:41:12 -0500798config ARCH_MULTI_V4T
799 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500800 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100801 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200802 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
803 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
804 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500805
806config ARCH_MULTI_V5
807 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500808 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100809 select ARCH_MULTI_V4_V5
Andrew Lunn12567bb2014-02-22 20:14:54 +0100810 select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200811 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
812 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500813
814config ARCH_MULTI_V4_V5
815 bool
816
817config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800818 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500819 select ARCH_MULTI_V6_V7
Rob Herring42f47542014-01-31 14:26:04 -0600820 select CPU_V6K
Rob Herring387798b2012-09-06 13:41:12 -0500821
822config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800823 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500824 default y
825 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100826 select CPU_V7
Rob Herring90bc8ac2014-01-31 15:32:02 -0600827 select HAVE_SMP
Rob Herring387798b2012-09-06 13:41:12 -0500828
829config ARCH_MULTI_V6_V7
830 bool
Rob Herring9352b052014-01-31 15:36:10 -0600831 select MIGHT_HAVE_CACHE_L2X0
Rob Herring387798b2012-09-06 13:41:12 -0500832
833config ARCH_MULTI_CPU_AUTO
834 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
835 select ARCH_MULTI_V5
836
837endmenu
838
Rob Herring05e2a3d2013-12-05 10:04:54 -0600839config ARCH_VIRT
840 bool "Dummy Virtual Machine" if ARCH_MULTI_V7
Rob Herring4b8b5f22013-12-05 10:10:34 -0600841 select ARM_AMBA
Rob Herring05e2a3d2013-12-05 10:04:54 -0600842 select ARM_GIC
Rob Herring05e2a3d2013-12-05 10:04:54 -0600843 select ARM_PSCI
Rob Herring4b8b5f22013-12-05 10:10:34 -0600844 select HAVE_ARM_ARCH_TIMER
Rob Herring05e2a3d2013-12-05 10:04:54 -0600845
Russell Kingccf50e22010-03-15 19:03:06 +0000846#
847# This is sorted alphabetically by mach-* pathname. However, plat-*
848# Kconfigs may be included either alphabetically (according to the
849# plat- suffix) or along side the corresponding mach-* source.
850#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200851source "arch/arm/mach-mvebu/Kconfig"
852
Russell King95b8f202010-01-14 11:43:54 +0000853source "arch/arm/mach-at91/Kconfig"
854
Anders Berg1d22924e2014-05-23 11:08:35 +0200855source "arch/arm/mach-axxia/Kconfig"
856
Christian Daudt8ac49e02012-11-19 09:46:10 -0800857source "arch/arm/mach-bcm/Kconfig"
858
Sebastian Hesselbarth1c37fa12013-09-09 14:36:19 +0200859source "arch/arm/mach-berlin/Kconfig"
860
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861source "arch/arm/mach-clps711x/Kconfig"
862
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300863source "arch/arm/mach-cns3xxx/Kconfig"
864
Russell King95b8f202010-01-14 11:43:54 +0000865source "arch/arm/mach-davinci/Kconfig"
866
867source "arch/arm/mach-dove/Kconfig"
868
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000869source "arch/arm/mach-ep93xx/Kconfig"
870
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871source "arch/arm/mach-footbridge/Kconfig"
872
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200873source "arch/arm/mach-gemini/Kconfig"
874
Rob Herring387798b2012-09-06 13:41:12 -0500875source "arch/arm/mach-highbank/Kconfig"
876
Haojian Zhuang389ee0c2013-12-20 10:52:56 +0800877source "arch/arm/mach-hisi/Kconfig"
878
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879source "arch/arm/mach-integrator/Kconfig"
880
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100881source "arch/arm/mach-iop32x/Kconfig"
882
883source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884
Dan Williams285f5fa2006-12-07 02:59:39 +0100885source "arch/arm/mach-iop13xx/Kconfig"
886
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887source "arch/arm/mach-ixp4xx/Kconfig"
888
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400889source "arch/arm/mach-keystone/Kconfig"
890
Russell King95b8f202010-01-14 11:43:54 +0000891source "arch/arm/mach-ks8695/Kconfig"
892
Russell King95b8f202010-01-14 11:43:54 +0000893source "arch/arm/mach-msm/Kconfig"
894
Jonas Jensen17723fd32013-12-18 13:58:45 +0100895source "arch/arm/mach-moxart/Kconfig"
896
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200897source "arch/arm/mach-mv78xx0/Kconfig"
898
Shawn Guo3995eb82012-09-13 19:48:07 +0800899source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700900
Matthias Bruggerf682a212014-05-13 01:06:13 +0200901source "arch/arm/mach-mediatek/Kconfig"
902
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800903source "arch/arm/mach-mxs/Kconfig"
904
Russell King95b8f202010-01-14 11:43:54 +0000905source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800906
Russell King95b8f202010-01-14 11:43:54 +0000907source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000908
Daniel Tang9851ca52013-06-11 18:40:17 +1000909source "arch/arm/mach-nspire/Kconfig"
910
Tony Lindgrend48af152005-07-10 19:58:17 +0100911source "arch/arm/plat-omap/Kconfig"
912
913source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700914
Tony Lindgren1dbae812005-11-10 14:26:51 +0000915source "arch/arm/mach-omap2/Kconfig"
916
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400917source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400918
Rob Herring387798b2012-09-06 13:41:12 -0500919source "arch/arm/mach-picoxcell/Kconfig"
920
Russell King95b8f202010-01-14 11:43:54 +0000921source "arch/arm/mach-pxa/Kconfig"
922source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700923
Russell King95b8f202010-01-14 11:43:54 +0000924source "arch/arm/mach-mmp/Kconfig"
925
Kumar Gala8fc1b0f2014-01-21 17:14:10 -0600926source "arch/arm/mach-qcom/Kconfig"
927
Russell King95b8f202010-01-14 11:43:54 +0000928source "arch/arm/mach-realview/Kconfig"
929
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200930source "arch/arm/mach-rockchip/Kconfig"
931
Russell King95b8f202010-01-14 11:43:54 +0000932source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300933
Rob Herring387798b2012-09-06 13:41:12 -0500934source "arch/arm/mach-socfpga/Kconfig"
935
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100936source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100937
Srinivas Kandagatla65ebcc12013-06-25 12:15:10 +0100938source "arch/arm/mach-sti/Kconfig"
939
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900940source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941
Ben Dooks431107e2010-01-26 10:11:04 +0900942source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +0100943
Kukjin Kim170f4e42010-02-24 16:40:44 +0900944source "arch/arm/mach-s5pv210/Kconfig"
945
Kukjin Kim83014572011-11-06 13:54:56 +0900946source "arch/arm/mach-exynos/Kconfig"
Rob Herringe509b282014-06-10 09:06:09 -0500947source "arch/arm/plat-samsung/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900948
Russell King882d01f2010-03-02 23:40:15 +0000949source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950
Maxime Ripard3b526342012-11-08 12:40:16 +0100951source "arch/arm/mach-sunxi/Kconfig"
952
Barry Song156a0992012-08-23 13:41:58 +0800953source "arch/arm/mach-prima2/Kconfig"
954
Erik Gillingc5f80062010-01-21 16:53:02 -0800955source "arch/arm/mach-tegra/Kconfig"
956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958
Russell King95b8f202010-01-14 11:43:54 +0000959source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700960
961source "arch/arm/mach-versatile/Kconfig"
962
Russell Kingceade892010-02-11 21:44:53 +0000963source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +0000964source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +0000965
Tony Prisk6f35f9a2012-10-11 20:13:09 +1300966source "arch/arm/mach-vt8500/Kconfig"
967
wanzongshun7ec80dd2008-12-03 03:55:38 +0100968source "arch/arm/mach-w90x900/Kconfig"
969
Josh Cartwright9a45eb62012-11-19 11:38:29 -0600970source "arch/arm/mach-zynq/Kconfig"
971
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972# Definitions to make life easier
973config ARCH_ACORN
974 bool
975
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100976config PLAT_IOP
977 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -0700978 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +0100979
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400980config PLAT_ORION
981 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100982 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100983 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100984 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +0200985 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -0400986
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200987config PLAT_ORION_LEGACY
988 bool
989 select PLAT_ORION
990
Eric Miaobd5ce432009-01-20 12:06:01 +0800991config PLAT_PXA
992 bool
993
Russell Kingf4b8b312010-01-14 12:48:06 +0000994config PLAT_VERSATILE
995 bool
996
Russell Kinge3887712010-01-14 13:30:16 +0000997config ARM_TIMER_SP804
998 bool
Russell Kingbfe45e02011-05-08 15:33:30 +0100999 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001000 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001001
Alexandre Courbotd9a1bea2013-11-24 15:30:46 +09001002source "arch/arm/firmware/Kconfig"
1003
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004source arch/arm/mm/Kconfig
1005
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001006config IWMMXT
Sebastian Hesselbarthd93003e2014-04-24 22:58:30 +01001007 bool "Enable iWMMXt support"
1008 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B
1009 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001010 help
1011 Enable support for iWMMXt context switching at run time if
1012 running on a CPU that supports it.
1013
eric miao52108642010-12-13 09:42:34 +01001014config MULTI_IRQ_HANDLER
1015 bool
1016 help
1017 Allow each machine to specify it's own IRQ handler at run time.
1018
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001019if !MMU
1020source "arch/arm/Kconfig-nommu"
1021endif
1022
Gregory CLEMENT3e0a07f2013-06-23 10:17:11 +01001023config PJ4B_ERRATA_4742
1024 bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation"
1025 depends on CPU_PJ4B && MACH_ARMADA_370
1026 default y
1027 help
1028 When coming out of either a Wait for Interrupt (WFI) or a Wait for
1029 Event (WFE) IDLE states, a specific timing sensitivity exists between
1030 the retiring WFI/WFE instructions and the newly issued subsequent
1031 instructions. This sensitivity can result in a CPU hang scenario.
1032 Workaround:
1033 The software must insert either a Data Synchronization Barrier (DSB)
1034 or Data Memory Barrier (DMB) command immediately after the WFI/WFE
1035 instruction
1036
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001037config ARM_ERRATA_326103
1038 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1039 depends on CPU_V6
1040 help
1041 Executing a SWP instruction to read-only memory does not set bit 11
1042 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1043 treat the access as a read, preventing a COW from occurring and
1044 causing the faulting task to livelock.
1045
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001046config ARM_ERRATA_411920
1047 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001048 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001049 help
1050 Invalidation of the Instruction Cache operation can
1051 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1052 It does not affect the MPCore. This option enables the ARM Ltd.
1053 recommended workaround.
1054
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001055config ARM_ERRATA_430973
1056 bool "ARM errata: Stale prediction on replaced interworking branch"
1057 depends on CPU_V7
1058 help
1059 This option enables the workaround for the 430973 Cortex-A8
1060 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1061 interworking branch is replaced with another code sequence at the
1062 same virtual address, whether due to self-modifying code or virtual
1063 to physical address re-mapping, Cortex-A8 does not recover from the
1064 stale interworking branch prediction. This results in Cortex-A8
1065 executing the new code sequence in the incorrect ARM or Thumb state.
1066 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1067 and also flushes the branch target cache at every context switch.
1068 Note that setting specific bits in the ACTLR register may not be
1069 available in non-secure mode.
1070
Catalin Marinas855c5512009-04-30 17:06:15 +01001071config ARM_ERRATA_458693
1072 bool "ARM errata: Processor deadlock when a false hazard is created"
1073 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001074 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001075 help
1076 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1077 erratum. For very specific sequences of memory operations, it is
1078 possible for a hazard condition intended for a cache line to instead
1079 be incorrectly associated with a different cache line. This false
1080 hazard might then cause a processor deadlock. The workaround enables
1081 the L1 caching of the NEON accesses and disables the PLD instruction
1082 in the ACTLR register. Note that setting specific bits in the ACTLR
1083 register may not be available in non-secure mode.
1084
Catalin Marinas0516e462009-04-30 17:06:20 +01001085config ARM_ERRATA_460075
1086 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1087 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001088 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001089 help
1090 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1091 erratum. Any asynchronous access to the L2 cache may encounter a
1092 situation in which recent store transactions to the L2 cache are lost
1093 and overwritten with stale memory contents from external memory. The
1094 workaround disables the write-allocate mode for the L2 cache via the
1095 ACTLR register. Note that setting specific bits in the ACTLR register
1096 may not be available in non-secure mode.
1097
Will Deacon9f050272010-09-14 09:51:43 +01001098config ARM_ERRATA_742230
1099 bool "ARM errata: DMB operation may be faulty"
1100 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001101 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001102 help
1103 This option enables the workaround for the 742230 Cortex-A9
1104 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1105 between two write operations may not ensure the correct visibility
1106 ordering of the two writes. This workaround sets a specific bit in
1107 the diagnostic register of the Cortex-A9 which causes the DMB
1108 instruction to behave as a DSB, ensuring the correct behaviour of
1109 the two writes.
1110
Will Deacona672e992010-09-14 09:53:02 +01001111config ARM_ERRATA_742231
1112 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1113 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001114 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001115 help
1116 This option enables the workaround for the 742231 Cortex-A9
1117 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1118 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1119 accessing some data located in the same cache line, may get corrupted
1120 data due to bad handling of the address hazard when the line gets
1121 replaced from one of the CPUs at the same time as another CPU is
1122 accessing it. This workaround sets specific bits in the diagnostic
1123 register of the Cortex-A9 which reduces the linefill issuing
1124 capabilities of the processor.
1125
Jon Medhurst69155792013-06-07 10:35:35 +01001126config ARM_ERRATA_643719
1127 bool "ARM errata: LoUIS bit field in CLIDR register is incorrect"
1128 depends on CPU_V7 && SMP
1129 help
1130 This option enables the workaround for the 643719 Cortex-A9 (prior to
1131 r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR
1132 register returns zero when it should return one. The workaround
1133 corrects this value, ensuring cache maintenance operations which use
1134 it behave as intended and avoiding data corruption.
1135
Will Deaconcdf357f2010-08-05 11:20:51 +01001136config ARM_ERRATA_720789
1137 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001138 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001139 help
1140 This option enables the workaround for the 720789 Cortex-A9 (prior to
1141 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1142 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1143 As a consequence of this erratum, some TLB entries which should be
1144 invalidated are not, resulting in an incoherency in the system page
1145 tables. The workaround changes the TLB flushing routines to invalidate
1146 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001147
1148config ARM_ERRATA_743622
1149 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1150 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001151 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001152 help
1153 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001154 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001155 optimisation in the Cortex-A9 Store Buffer may lead to data
1156 corruption. This workaround sets a specific bit in the diagnostic
1157 register of the Cortex-A9 which disables the Store Buffer
1158 optimisation, preventing the defect from occurring. This has no
1159 visible impact on the overall performance or power consumption of the
1160 processor.
1161
Will Deacon9a27c272011-02-18 16:36:35 +01001162config ARM_ERRATA_751472
1163 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001164 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001165 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001166 help
1167 This option enables the workaround for the 751472 Cortex-A9 (prior
1168 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1169 completion of a following broadcasted operation if the second
1170 operation is received by a CPU before the ICIALLUIS has completed,
1171 potentially leading to corrupted entries in the cache or TLB.
1172
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001173config ARM_ERRATA_754322
1174 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1175 depends on CPU_V7
1176 help
1177 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1178 r3p*) erratum. A speculative memory access may cause a page table walk
1179 which starts prior to an ASID switch but completes afterwards. This
1180 can populate the micro-TLB with a stale entry which may be hit with
1181 the new ASID. This workaround places two dsb instructions in the mm
1182 switching code so that no page table walks can cross the ASID switch.
1183
Will Deacon5dab26af2011-03-04 12:38:54 +01001184config ARM_ERRATA_754327
1185 bool "ARM errata: no automatic Store Buffer drain"
1186 depends on CPU_V7 && SMP
1187 help
1188 This option enables the workaround for the 754327 Cortex-A9 (prior to
1189 r2p0) erratum. The Store Buffer does not have any automatic draining
1190 mechanism and therefore a livelock may occur if an external agent
1191 continuously polls a memory location waiting to observe an update.
1192 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1193 written polling loops from denying visibility of updates to memory.
1194
Catalin Marinas145e10e2011-08-15 11:04:41 +01001195config ARM_ERRATA_364296
1196 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
Fabio Estevamfd832472013-07-09 18:34:01 +01001197 depends on CPU_V6
Catalin Marinas145e10e2011-08-15 11:04:41 +01001198 help
1199 This options enables the workaround for the 364296 ARM1136
1200 r0p2 erratum (possible cache data corruption with
1201 hit-under-miss enabled). It sets the undocumented bit 31 in
1202 the auxiliary control register and the FI bit in the control
1203 register, thus disabling hit-under-miss without putting the
1204 processor into full low interrupt latency mode. ARM11MPCore
1205 is not affected.
1206
Will Deaconf630c1b2011-09-15 11:45:15 +01001207config ARM_ERRATA_764369
1208 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1209 depends on CPU_V7 && SMP
1210 help
1211 This option enables the workaround for erratum 764369
1212 affecting Cortex-A9 MPCore with two or more processors (all
1213 current revisions). Under certain timing circumstances, a data
1214 cache line maintenance operation by MVA targeting an Inner
1215 Shareable memory region may fail to proceed up to either the
1216 Point of Coherency or to the Point of Unification of the
1217 system. This workaround adds a DSB instruction before the
1218 relevant cache maintenance functions and sets a specific bit
1219 in the diagnostic control register of the SCU.
1220
Simon Horman7253b852012-09-28 02:12:45 +01001221config ARM_ERRATA_775420
1222 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1223 depends on CPU_V7
1224 help
1225 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1226 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1227 operation aborts with MMU exception, it might cause the processor
1228 to deadlock. This workaround puts DSB before executing ISB if
1229 an abort may occur on cache maintenance.
1230
Catalin Marinas93dc6882013-03-26 23:35:04 +01001231config ARM_ERRATA_798181
1232 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1233 depends on CPU_V7 && SMP
1234 help
1235 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1236 adequately shooting down all use of the old entries. This
1237 option enables the Linux kernel workaround for this erratum
1238 which sends an IPI to the CPUs that are running the same ASID
1239 as the one being invalidated.
1240
Will Deacon84b65042013-08-20 17:29:55 +01001241config ARM_ERRATA_773022
1242 bool "ARM errata: incorrect instructions may be executed from loop buffer"
1243 depends on CPU_V7
1244 help
1245 This option enables the workaround for the 773022 Cortex-A15
1246 (up to r0p4) erratum. In certain rare sequences of code, the
1247 loop buffer may deliver incorrect instructions. This
1248 workaround disables the loop buffer to avoid the erratum.
1249
Linus Torvalds1da177e2005-04-16 15:20:36 -07001250endmenu
1251
1252source "arch/arm/common/Kconfig"
1253
Linus Torvalds1da177e2005-04-16 15:20:36 -07001254menu "Bus support"
1255
1256config ARM_AMBA
1257 bool
1258
1259config ISA
1260 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001261 help
1262 Find out whether you have ISA slots on your motherboard. ISA is the
1263 name of a bus system, i.e. the way the CPU talks to the other stuff
1264 inside your box. Other bus systems are PCI, EISA, MicroChannel
1265 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1266 newer boards don't support it. If you have ISA, say Y, otherwise N.
1267
Russell King065909b2006-01-04 15:44:16 +00001268# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269config ISA_DMA
1270 bool
Russell King065909b2006-01-04 15:44:16 +00001271 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001272
Russell King065909b2006-01-04 15:44:16 +00001273# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001274config ISA_DMA_API
1275 bool
Al Viro5cae8412005-05-04 05:39:22 +01001276
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001278 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001279 help
1280 Find out whether you have a PCI motherboard. PCI is the name of a
1281 bus system, i.e. the way the CPU talks to the other stuff inside
1282 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1283 VESA. If you have PCI, say Y, otherwise N.
1284
Anton Vorontsov52882172010-04-19 13:20:49 +01001285config PCI_DOMAINS
1286 bool
1287 depends on PCI
1288
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001289config PCI_NANOENGINE
1290 bool "BSE nanoEngine PCI support"
1291 depends on SA1100_NANOENGINE
1292 help
1293 Enable PCI on the BSE nanoEngine board.
1294
Matthew Wilcox36e23592007-07-10 10:54:40 -06001295config PCI_SYSCALL
1296 def_bool PCI
1297
Mike Rapoporta0113a92007-11-25 08:55:34 +01001298config PCI_HOST_ITE8152
1299 bool
1300 depends on PCI && MACH_ARMCORE
1301 default y
1302 select DMABOUNCE
1303
Linus Torvalds1da177e2005-04-16 15:20:36 -07001304source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001305source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306
1307source "drivers/pcmcia/Kconfig"
1308
1309endmenu
1310
1311menu "Kernel Features"
1312
Dave Martin3b556582011-12-07 15:38:04 +00001313config HAVE_SMP
1314 bool
1315 help
1316 This option should be selected by machines which have an SMP-
1317 capable CPU.
1318
1319 The only effect of this option is to make the SMP-related
1320 options available to the user for configuration.
1321
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001323 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001324 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001325 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001326 depends on HAVE_SMP
Jonathan Austin801bb212013-02-22 18:56:04 +00001327 depends on MMU || ARM_MPU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001328 help
1329 This enables support for systems with more than one CPU. If you have
Robert Graffham4a474152014-01-23 15:55:29 -08001330 a system with only one CPU, say N. If you have a system with more
1331 than one CPU, say Y.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001332
Robert Graffham4a474152014-01-23 15:55:29 -08001333 If you say N here, the kernel will run on uni- and multiprocessor
Linus Torvalds1da177e2005-04-16 15:20:36 -07001334 machines, but will use only one CPU of a multiprocessor machine. If
Robert Graffham4a474152014-01-23 15:55:29 -08001335 you say Y here, the kernel will run on many, but not all,
1336 uniprocessor machines. On a uniprocessor machine, the kernel
1337 will run faster if you say N here.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001338
Paul Bolle395cf962011-08-15 02:02:26 +02001339 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001340 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001341 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001342
1343 If you don't know what to do here, say N.
1344
Russell Kingf00ec482010-09-04 10:47:48 +01001345config SMP_ON_UP
1346 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Jonathan Austin801bb212013-02-22 18:56:04 +00001347 depends on SMP && !XIP_KERNEL && MMU
Russell Kingf00ec482010-09-04 10:47:48 +01001348 default y
1349 help
1350 SMP kernels contain instructions which fail on non-SMP processors.
1351 Enabling this option allows the kernel to modify itself to make
1352 these instructions safe. Disabling it allows about 1K of space
1353 savings.
1354
1355 If you don't know what to do here, say Y.
1356
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001357config ARM_CPU_TOPOLOGY
1358 bool "Support cpu topology definition"
1359 depends on SMP && CPU_V7
1360 default y
1361 help
1362 Support ARM cpu topology definition. The MPIDR register defines
1363 affinity between processors which is then used to describe the cpu
1364 topology of an ARM System.
1365
1366config SCHED_MC
1367 bool "Multi-core scheduler support"
1368 depends on ARM_CPU_TOPOLOGY
1369 help
1370 Multi-core scheduler support improves the CPU scheduler's decision
1371 making when dealing with multi-core CPU chips at a cost of slightly
1372 increased overhead in some places. If unsure say N here.
1373
1374config SCHED_SMT
1375 bool "SMT scheduler support"
1376 depends on ARM_CPU_TOPOLOGY
1377 help
1378 Improves the CPU scheduler's decision making when dealing with
1379 MultiThreading at a cost of slightly increased overhead in some
1380 places. If unsure say N here.
1381
Russell Kinga8cbcd92009-05-16 11:51:14 +01001382config HAVE_ARM_SCU
1383 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001384 help
1385 This option enables support for the ARM system coherency unit
1386
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001387config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001388 bool "Architected timer support"
1389 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001390 select ARM_ARCH_TIMER
Will Deacon0c4034622013-11-19 15:46:17 +01001391 select GENERIC_CLOCKEVENTS
Marc Zyngier022c03a2012-01-11 17:25:17 +00001392 help
1393 This option enables support for the ARM architected timer
1394
Russell Kingf32f4ce2009-05-16 12:14:21 +01001395config HAVE_ARM_TWD
1396 bool
1397 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001398 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001399 help
1400 This options enables support for the ARM timer and watchdog unit
1401
Nicolas Pitree8db2882012-04-12 02:45:22 -04001402config MCPM
1403 bool "Multi-Cluster Power Management"
1404 depends on CPU_V7 && SMP
1405 help
1406 This option provides the common power management infrastructure
1407 for (multi-)cluster based systems, such as big.LITTLE based
1408 systems.
1409
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001410config BIG_LITTLE
1411 bool "big.LITTLE support (Experimental)"
1412 depends on CPU_V7 && SMP
1413 select MCPM
1414 help
1415 This option enables support selections for the big.LITTLE
1416 system architecture.
1417
1418config BL_SWITCHER
1419 bool "big.LITTLE switcher support"
1420 depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001421 select ARM_CPU_SUSPEND
Russell King51aaf812014-04-22 22:26:27 +01001422 select CPU_PM
Nicolas Pitre1c33be52012-04-12 02:56:10 -04001423 help
1424 The big.LITTLE "switcher" provides the core functionality to
1425 transparently handle transition between a cluster of A15's
1426 and a cluster of A7's in a big.LITTLE system.
1427
Nicolas Pitreb22537c2012-04-12 03:04:28 -04001428config BL_SWITCHER_DUMMY_IF
1429 tristate "Simple big.LITTLE switcher user interface"
1430 depends on BL_SWITCHER && DEBUG_KERNEL
1431 help
1432 This is a simple and dummy char dev interface to control
1433 the big.LITTLE switcher core code. It is meant for
1434 debugging purposes only.
1435
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001436choice
1437 prompt "Memory split"
Russell King006fa252014-02-26 19:40:46 +00001438 depends on MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001439 default VMSPLIT_3G
1440 help
1441 Select the desired split between kernel and user memory.
1442
1443 If you are not absolutely sure what you are doing, leave this
1444 option alone!
1445
1446 config VMSPLIT_3G
1447 bool "3G/1G user/kernel split"
1448 config VMSPLIT_2G
1449 bool "2G/2G user/kernel split"
1450 config VMSPLIT_1G
1451 bool "1G/3G user/kernel split"
1452endchoice
1453
1454config PAGE_OFFSET
1455 hex
Russell King006fa252014-02-26 19:40:46 +00001456 default PHYS_OFFSET if !MMU
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001457 default 0x40000000 if VMSPLIT_1G
1458 default 0x80000000 if VMSPLIT_2G
1459 default 0xC0000000
1460
Linus Torvalds1da177e2005-04-16 15:20:36 -07001461config NR_CPUS
1462 int "Maximum number of CPUs (2-32)"
1463 range 2 32
1464 depends on SMP
1465 default "4"
1466
Russell Kinga054a812005-11-02 22:24:33 +00001467config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001468 bool "Support for hot-pluggable CPUs"
Stephen Rothwell40b31362013-05-21 13:49:35 +10001469 depends on SMP
Russell Kinga054a812005-11-02 22:24:33 +00001470 help
1471 Say Y here to experiment with turning CPUs off and on. CPUs
1472 can be controlled through /sys/devices/system/cpu.
1473
Will Deacon2bdd4242012-12-12 19:20:52 +00001474config ARM_PSCI
1475 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1476 depends on CPU_V7
1477 help
1478 Say Y here if you want Linux to communicate with system firmware
1479 implementing the PSCI specification for CPU-centric power
1480 management operations described in ARM document number ARM DEN
1481 0022A ("Power State Coordination Interface System Software on
1482 ARM processors").
1483
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001484# The GPIO number here must be sorted by descending number. In case of
1485# a multiplatform kernel, we just want the highest value required by the
1486# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001487config ARCH_NR_GPIO
1488 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001489 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tomasz Figaaa425872014-07-03 13:17:12 +02001490 default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \
1491 SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210
Boris BREZILLONeb171a92014-04-10 15:52:46 +02001492 default 416 if ARCH_SUNXI
Olof Johansson06b851e2013-04-02 18:33:58 -07001493 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001494 default 352 if ARCH_VT8500
Heiko Stuebner7b5da4c2014-05-26 00:13:51 +02001495 default 288 if ARCH_ROCKCHIP
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001496 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001497 default 0
1498 help
1499 Maximum number of GPIOs in the system.
1500
1501 If unsure, leave the default value.
1502
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001503source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001504
Russell Kingc9218b12013-04-27 23:31:10 +01001505config HZ_FIXED
Russell Kingf8065812006-03-02 22:41:59 +00001506 int
Kukjin Kim070b8b42014-07-02 07:50:15 +09001507 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001508 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001509 default AT91_TIMER_HZ if ARCH_AT91
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001510 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE_LEGACY
Russell King47d84682013-09-10 23:47:55 +01001511 default 0
Russell Kingc9218b12013-04-27 23:31:10 +01001512
1513choice
Russell King47d84682013-09-10 23:47:55 +01001514 depends on HZ_FIXED = 0
Russell Kingc9218b12013-04-27 23:31:10 +01001515 prompt "Timer frequency"
1516
1517config HZ_100
1518 bool "100 Hz"
1519
1520config HZ_200
1521 bool "200 Hz"
1522
1523config HZ_250
1524 bool "250 Hz"
1525
1526config HZ_300
1527 bool "300 Hz"
1528
1529config HZ_500
1530 bool "500 Hz"
1531
1532config HZ_1000
1533 bool "1000 Hz"
1534
1535endchoice
1536
1537config HZ
1538 int
Russell King47d84682013-09-10 23:47:55 +01001539 default HZ_FIXED if HZ_FIXED != 0
Russell Kingc9218b12013-04-27 23:31:10 +01001540 default 100 if HZ_100
1541 default 200 if HZ_200
1542 default 250 if HZ_250
1543 default 300 if HZ_300
1544 default 500 if HZ_500
1545 default 1000
1546
1547config SCHED_HRTICK
1548 def_bool HIGH_RES_TIMERS
Russell Kingf8065812006-03-02 22:41:59 +00001549
Catalin Marinas16c79652009-07-24 12:33:02 +01001550config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001551 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001552 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001553 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001554 select AEABI
1555 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001556 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001557 help
1558 By enabling this option, the kernel will be compiled in
1559 Thumb-2 mode. A compiler/assembler that understand the unified
1560 ARM-Thumb syntax is needed.
1561
1562 If unsure, say N.
1563
Dave Martin6f685c52011-03-03 11:41:12 +01001564config THUMB2_AVOID_R_ARM_THM_JUMP11
1565 bool "Work around buggy Thumb-2 short branch relocations in gas"
1566 depends on THUMB2_KERNEL && MODULES
1567 default y
1568 help
1569 Various binutils versions can resolve Thumb-2 branches to
1570 locally-defined, preemptible global symbols as short-range "b.n"
1571 branch instructions.
1572
1573 This is a problem, because there's no guarantee the final
1574 destination of the symbol, or any candidate locations for a
1575 trampoline, are within range of the branch. For this reason, the
1576 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1577 relocation in modules at all, and it makes little sense to add
1578 support.
1579
1580 The symptom is that the kernel fails with an "unsupported
1581 relocation" error when loading some modules.
1582
1583 Until fixed tools are available, passing
1584 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1585 code which hits this problem, at the cost of a bit of extra runtime
1586 stack usage in some cases.
1587
1588 The problem is described in more detail at:
1589 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1590
1591 Only Thumb-2 kernels are affected.
1592
1593 Unless you are sure your tools don't have this problem, say Y.
1594
Catalin Marinas0becb082009-07-24 12:32:53 +01001595config ARM_ASM_UNIFIED
1596 bool
1597
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001598config AEABI
1599 bool "Use the ARM EABI to compile the kernel"
1600 help
1601 This option allows for the kernel to be compiled using the latest
1602 ARM ABI (aka EABI). This is only useful if you are using a user
1603 space environment that is also compiled with EABI.
1604
1605 Since there are major incompatibilities between the legacy ABI and
1606 EABI, especially with regard to structure member alignment, this
1607 option also changes the kernel syscall calling convention to
1608 disambiguate both ABIs and allow for backward compatibility support
1609 (selected with CONFIG_OABI_COMPAT).
1610
1611 To use this you need GCC version 4.0.0 or later.
1612
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001613config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001614 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001615 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001616 help
1617 This option preserves the old syscall interface along with the
1618 new (ARM EABI) one. It also provides a compatibility layer to
1619 intercept syscalls that have structure arguments which layout
1620 in memory differs between the legacy ABI and the new ARM EABI
1621 (only for non "thumb" binaries). This option adds a tiny
1622 overhead to all syscalls and produces a slightly larger kernel.
Kees Cook91702172013-11-09 00:51:56 +01001623
1624 The seccomp filter system will not be available when this is
1625 selected, since there is no way yet to sensibly distinguish
1626 between calling conventions during filtering.
1627
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001628 If you know you'll be using only pure EABI user space then you
1629 can say N here. If this option is not selected and you attempt
1630 to execute a legacy ABI binary then the result will be
1631 UNPREDICTABLE (in fact it can be predicted that it won't work
Kees Cookb02f8462013-11-09 00:31:11 +01001632 at all). If in doubt say N.
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001633
Mel Gormaneb335752009-05-13 17:34:48 +01001634config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001635 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001636
Russell King05944d72006-11-30 20:43:51 +00001637config ARCH_SPARSEMEM_ENABLE
1638 bool
1639
Russell King07a2f732008-10-01 21:39:58 +01001640config ARCH_SPARSEMEM_DEFAULT
1641 def_bool ARCH_SPARSEMEM_ENABLE
1642
Russell King05944d72006-11-30 20:43:51 +00001643config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001644 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001645
Will Deacon7b7bf492011-05-19 13:21:14 +01001646config HAVE_ARCH_PFN_VALID
1647 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1648
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001649config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001650 bool "High Memory Support"
1651 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001652 help
1653 The address space of ARM processors is only 4 Gigabytes large
1654 and it has to accommodate user address space, kernel address
1655 space as well as some memory mapped IO. That means that, if you
1656 have a large amount of physical memory and/or IO, not all of the
1657 memory can be "permanently mapped" by the kernel. The physical
1658 memory that is not permanently mapped is called "high memory".
1659
1660 Depending on the selected kernel/user memory split, minimum
1661 vmalloc space and actual amount of RAM, you may not need this
1662 option which should result in a slightly faster kernel.
1663
1664 If unsure, say n.
1665
Russell King65cec8e2009-08-17 20:02:06 +01001666config HIGHPTE
1667 bool "Allocate 2nd-level pagetables from highmem"
1668 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001669
Jamie Iles1b8873a2010-02-02 20:25:44 +01001670config HW_PERF_EVENTS
1671 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001672 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001673 default y
1674 help
1675 Enable hardware performance counter support for perf events. If
1676 disabled, perf events will use software events only.
1677
Catalin Marinas1355e2a2012-07-25 14:32:38 +01001678config SYS_SUPPORTS_HUGETLBFS
1679 def_bool y
1680 depends on ARM_LPAE
1681
Catalin Marinas8d962502012-07-25 14:39:26 +01001682config HAVE_ARCH_TRANSPARENT_HUGEPAGE
1683 def_bool y
1684 depends on ARM_LPAE
1685
Steven Capper4bfab202013-07-26 14:58:22 +01001686config ARCH_WANT_GENERAL_HUGETLB
1687 def_bool y
1688
Dave Hansen3f22ab22005-06-23 00:07:43 -07001689source "mm/Kconfig"
1690
Magnus Dammc1b2d972010-07-05 10:00:11 +01001691config FORCE_MAX_ZONEORDER
Laurent Pinchartbf98c1e2013-11-09 13:33:48 +01001692 int "Maximum zone order" if ARCH_SHMOBILE_LEGACY
1693 range 11 64 if ARCH_SHMOBILE_LEGACY
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001694 default "12" if SOC_AM33XX
Uwe Kleine-König6d85e2b2011-11-17 14:36:23 +01001695 default "9" if SA1111 || ARCH_EFM32
Magnus Dammc1b2d972010-07-05 10:00:11 +01001696 default "11"
1697 help
1698 The kernel memory allocator divides physically contiguous memory
1699 blocks into "zones", where each zone is a power of two number of
1700 pages. This option selects the largest power of two that the kernel
1701 keeps in the memory allocator. If you need to allocate very large
1702 blocks of physically contiguous memory, then you may need to
1703 increase this value.
1704
1705 This config option is actually maximum order plus one. For example,
1706 a value of 11 means that the largest free memory block is 2^10 pages.
1707
Linus Torvalds1da177e2005-04-16 15:20:36 -07001708config ALIGNMENT_TRAP
1709 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001710 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001712 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001713 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001714 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001715 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1716 address divisible by 4. On 32-bit ARM processors, these non-aligned
1717 fetch/store instructions will be emulated in software if you say
1718 here, which has a severe performance impact. This is necessary for
1719 correct operation of some network protocols. With an IP-only
1720 configuration it is safe to say N, otherwise say Y.
1721
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001722config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001723 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1724 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001725 default y if CPU_FEROCEON
1726 help
1727 Implement faster copy_to_user and clear_user methods for CPU
1728 cores where a 8-word STM instruction give significantly higher
1729 memory write throughput than a sequence of individual 32bit stores.
1730
1731 A possible side effect is a slight increase in scheduling latency
1732 between threads sharing the same address space if they invoke
1733 such copy operations with large buffers.
1734
1735 However, if the CPU data cache is using a write-allocate mode,
1736 this option is unlikely to provide any performance gain.
1737
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001738config SECCOMP
1739 bool
1740 prompt "Enable seccomp to safely compute untrusted bytecode"
1741 ---help---
1742 This kernel feature is useful for number crunching applications
1743 that may need to compute untrusted bytecode during their
1744 execution. By using pipes or other transports made available to
1745 the process as file descriptors supporting the read/write
1746 syscalls, it's possible to isolate those applications in
1747 their own address space using seccomp. Once seccomp is
1748 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1749 and the task is only allowed to execute a few safe syscalls
1750 defined by each seccomp mode.
1751
Stefano Stabellini06e62952013-10-15 15:47:14 +00001752config SWIOTLB
1753 def_bool y
1754
1755config IOMMU_HELPER
1756 def_bool SWIOTLB
1757
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001758config XEN_DOM0
1759 def_bool y
1760 depends on XEN
1761
1762config XEN
1763 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001764 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001765 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001766 depends on !GENERIC_ATOMIC64
Uwe Kleine-König7693dec2014-03-03 09:25:52 -05001767 depends on MMU
Russell King51aaf812014-04-22 22:26:27 +01001768 select ARCH_DMA_ADDR_T_64BIT
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001769 select ARM_PSCI
Stefano Stabellini83862cc2013-10-10 13:40:44 +00001770 select SWIOTLB_XEN
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001771 help
1772 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1773
Linus Torvalds1da177e2005-04-16 15:20:36 -07001774endmenu
1775
1776menu "Boot options"
1777
Grant Likely9eb8f672011-04-28 14:27:20 -06001778config USE_OF
1779 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001780 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001781 select OF
1782 select OF_EARLY_FLATTREE
Marek Szyprowskibcedb5f2014-02-28 14:42:54 +01001783 select OF_RESERVED_MEM
Grant Likely9eb8f672011-04-28 14:27:20 -06001784 help
1785 Include support for flattened device tree machine descriptions.
1786
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001787config ATAGS
1788 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1789 default y
1790 help
1791 This is the traditional way of passing data to the kernel at boot
1792 time. If you are solely relying on the flattened device tree (or
1793 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1794 to remove ATAGS support from your kernel binary. If unsure,
1795 leave this to y.
1796
1797config DEPRECATED_PARAM_STRUCT
1798 bool "Provide old way to pass kernel parameters"
1799 depends on ATAGS
1800 help
1801 This was deprecated in 2001 and announced to live on for 5 years.
1802 Some old boot loaders still use this way.
1803
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804# Compressed boot loader in ROM. Yes, we really want to ask about
1805# TEXT and BSS so we preserve their values in the config files.
1806config ZBOOT_ROM_TEXT
1807 hex "Compressed ROM boot loader base address"
1808 default "0"
1809 help
1810 The physical address at which the ROM-able zImage is to be
1811 placed in the target. Platforms which normally make use of
1812 ROM-able zImage formats normally set this to a suitable
1813 value in their defconfig file.
1814
1815 If ZBOOT_ROM is not enabled, this has no effect.
1816
1817config ZBOOT_ROM_BSS
1818 hex "Compressed ROM boot loader BSS address"
1819 default "0"
1820 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001821 The base address of an area of read/write memory in the target
1822 for the ROM-able zImage which must be available while the
1823 decompressor is running. It must be large enough to hold the
1824 entire decompressed kernel plus an additional 128 KiB.
1825 Platforms which normally make use of ROM-able zImage formats
1826 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001827
1828 If ZBOOT_ROM is not enabled, this has no effect.
1829
1830config ZBOOT_ROM
1831 bool "Compressed boot loader in ROM/flash"
1832 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
Russell King10968132014-01-01 11:59:44 +00001833 depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR
Linus Torvalds1da177e2005-04-16 15:20:36 -07001834 help
1835 Say Y here if you intend to execute your compressed kernel image
1836 (zImage) directly from ROM or flash. If unsure, say N.
1837
Simon Horman090ab3f2011-04-26 06:29:53 +01001838choice
1839 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001840 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001841 default ZBOOT_ROM_NONE
1842 help
1843 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001844 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001845 kernel image to an MMC or SD card and boot the kernel straight
1846 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001847 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001848 rest the kernel image to RAM.
1849
1850config ZBOOT_ROM_NONE
1851 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1852 help
1853 Do not load image from SD or MMC
1854
Simon Hormanf45b1142011-01-11 04:01:08 +01001855config ZBOOT_ROM_MMCIF
1856 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001857 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001858 Load image from MMCIF hardware block.
1859
1860config ZBOOT_ROM_SH_MOBILE_SDHI
1861 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1862 help
1863 Load image from SDHI hardware block
1864
1865endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001866
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001867config ARM_APPENDED_DTB
1868 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Russell King10968132014-01-01 11:59:44 +00001869 depends on OF
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001870 help
1871 With this option, the boot code will look for a device tree binary
1872 (DTB) appended to zImage
1873 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1874
1875 This is meant as a backward compatibility convenience for those
1876 systems with a bootloader that can't be upgraded to accommodate
1877 the documented boot protocol using a device tree.
1878
1879 Beware that there is very little in terms of protection against
1880 this option being confused by leftover garbage in memory that might
1881 look like a DTB header after a reboot if no actual DTB is appended
1882 to zImage. Do not leave this option active in a production kernel
1883 if you don't intend to always append a DTB. Proper passing of the
1884 location into r2 of a bootloader provided DTB is always preferable
1885 to this option.
1886
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001887config ARM_ATAG_DTB_COMPAT
1888 bool "Supplement the appended DTB with traditional ATAG information"
1889 depends on ARM_APPENDED_DTB
1890 help
1891 Some old bootloaders can't be updated to a DTB capable one, yet
1892 they provide ATAGs with memory configuration, the ramdisk address,
1893 the kernel cmdline string, etc. Such information is dynamically
1894 provided by the bootloader and can't always be stored in a static
1895 DTB. To allow a device tree enabled kernel to be used with such
1896 bootloaders, this option allows zImage to extract the information
1897 from the ATAG list and store it at run time into the appended DTB.
1898
Genoud Richardd0f34a112012-06-26 16:37:59 +01001899choice
1900 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1901 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1902
1903config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1904 bool "Use bootloader kernel arguments if available"
1905 help
1906 Uses the command-line options passed by the boot loader instead of
1907 the device tree bootargs property. If the boot loader doesn't provide
1908 any, the device tree bootargs property will be used.
1909
1910config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1911 bool "Extend with bootloader kernel arguments"
1912 help
1913 The command-line arguments provided by the boot loader will be
1914 appended to the the device tree bootargs property.
1915
1916endchoice
1917
Linus Torvalds1da177e2005-04-16 15:20:36 -07001918config CMDLINE
1919 string "Default kernel command string"
1920 default ""
1921 help
1922 On some architectures (EBSA110 and CATS), there is currently no way
1923 for the boot loader to pass arguments to the kernel. For these
1924 architectures, you should supply some command-line options at build
1925 time by entering them here. As a minimum, you should specify the
1926 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1927
Victor Boivie4394c122011-05-04 17:07:55 +01001928choice
1929 prompt "Kernel command line type" if CMDLINE != ""
1930 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001931 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001932
1933config CMDLINE_FROM_BOOTLOADER
1934 bool "Use bootloader kernel arguments if available"
1935 help
1936 Uses the command-line options passed by the boot loader. If
1937 the boot loader doesn't provide any, the default kernel command
1938 string provided in CMDLINE will be used.
1939
1940config CMDLINE_EXTEND
1941 bool "Extend bootloader kernel arguments"
1942 help
1943 The command-line arguments provided by the boot loader will be
1944 appended to the default kernel command string.
1945
Alexander Holler92d20402010-02-16 19:04:53 +01001946config CMDLINE_FORCE
1947 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001948 help
1949 Always use the default kernel command string, even if the boot
1950 loader passes other arguments to the kernel.
1951 This is useful if you cannot or don't want to change the
1952 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001953endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001954
Linus Torvalds1da177e2005-04-16 15:20:36 -07001955config XIP_KERNEL
1956 bool "Kernel Execute-In-Place from ROM"
Russell King10968132014-01-01 11:59:44 +00001957 depends on !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001958 help
1959 Execute-In-Place allows the kernel to run from non-volatile storage
1960 directly addressable by the CPU, such as NOR flash. This saves RAM
1961 space since the text section of the kernel is not loaded from flash
1962 to RAM. Read-write sections, such as the data section and stack,
1963 are still copied to RAM. The XIP kernel is not compressed since
1964 it has to run directly from flash, so it will take more space to
1965 store it. The flash address used to link the kernel object files,
1966 and for storing it, is configuration dependent. Therefore, if you
1967 say Y here, you must know the proper physical address where to
1968 store the kernel image depending on your own flash memory usage.
1969
1970 Also note that the make target becomes "make xipImage" rather than
1971 "make zImage" or "make Image". The final kernel binary to put in
1972 ROM memory will be arch/arm/boot/xipImage.
1973
1974 If unsure, say N.
1975
1976config XIP_PHYS_ADDR
1977 hex "XIP Kernel Physical Location"
1978 depends on XIP_KERNEL
1979 default "0x00080000"
1980 help
1981 This is the physical address in your flash memory the kernel will
1982 be linked for and stored to. This address is dependent on your
1983 own flash usage.
1984
Richard Purdiec587e4a2007-02-06 21:29:00 +01001985config KEXEC
1986 bool "Kexec system call (EXPERIMENTAL)"
Stephen Warren19ab4282013-06-14 16:14:14 +01001987 depends on (!SMP || PM_SLEEP_SMP)
Vivek Goyal12db5562014-08-08 14:26:04 -07001988 select CRYPTO
1989 select CRYPTO_SHA256
Richard Purdiec587e4a2007-02-06 21:29:00 +01001990 help
1991 kexec is a system call that implements the ability to shutdown your
1992 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02001993 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01001994 you can start any kernel with it, not just Linux.
1995
1996 It is an ongoing process to be certain the hardware in a machine
1997 is properly shutdown, so do not be surprised if this code does not
Geert Uytterhoevenbf220692013-08-20 21:38:03 +02001998 initially work for you.
Richard Purdiec587e4a2007-02-06 21:29:00 +01001999
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002000config ATAGS_PROC
2001 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002002 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002003 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002004 help
2005 Should the atags used to boot the kernel be exported in an "atags"
2006 file in procfs. Useful with kexec.
2007
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002008config CRASH_DUMP
2009 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002010 help
2011 Generate crash dump after being started by kexec. This should
2012 be normally only set in special crash dump kernels which are
2013 loaded in the main kernel with kexec-tools into a specially
2014 reserved region and then later executed after a crash by
2015 kdump/kexec. The crash dump kernel must be compiled to a
2016 memory address not used by the main kernel
2017
2018 For more details see Documentation/kdump/kdump.txt
2019
Eric Miaoe69edc792010-07-05 15:56:50 +02002020config AUTO_ZRELADDR
2021 bool "Auto calculation of the decompressed kernel image address"
Eric Miaoe69edc792010-07-05 15:56:50 +02002022 help
2023 ZRELADDR is the physical address where the decompressed kernel
2024 image will be placed. If AUTO_ZRELADDR is selected, the address
2025 will be determined at run-time by masking the current IP with
2026 0xf8000000. This assumes the zImage being placed in the first 128MB
2027 from start of memory.
2028
Linus Torvalds1da177e2005-04-16 15:20:36 -07002029endmenu
2030
Russell Kingac9d7ef2008-08-18 17:26:00 +01002031menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002032
Linus Torvalds1da177e2005-04-16 15:20:36 -07002033source "drivers/cpufreq/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002034
Russell Kingac9d7ef2008-08-18 17:26:00 +01002035source "drivers/cpuidle/Kconfig"
2036
2037endmenu
2038
Linus Torvalds1da177e2005-04-16 15:20:36 -07002039menu "Floating point emulation"
2040
2041comment "At least one emulation must be selected"
2042
2043config FPE_NWFPE
2044 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002045 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002046 ---help---
2047 Say Y to include the NWFPE floating point emulator in the kernel.
2048 This is necessary to run most binaries. Linux does not currently
2049 support floating point hardware so you need to say Y here even if
2050 your machine has an FPA or floating point co-processor podule.
2051
2052 You may say N here if you are going to load the Acorn FPEmulator
2053 early in the bootup.
2054
2055config FPE_NWFPE_XP
2056 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002057 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002058 help
2059 Say Y to include 80-bit support in the kernel floating-point
2060 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2061 Note that gcc does not generate 80-bit operations by default,
2062 so in most cases this option only enlarges the size of the
2063 floating point emulator without any good reason.
2064
2065 You almost surely want to say N here.
2066
2067config FPE_FASTFPE
2068 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002069 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002070 ---help---
2071 Say Y here to include the FAST floating point emulator in the kernel.
2072 This is an experimental much faster emulator which now also has full
2073 precision for the mantissa. It does not support any exceptions.
2074 It is very simple, and approximately 3-6 times faster than NWFPE.
2075
2076 It should be sufficient for most programs. It may be not suitable
2077 for scientific calculations, but you have to check this for yourself.
2078 If you do not feel you need a faster FP emulation you should better
2079 choose NWFPE.
2080
2081config VFP
2082 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002083 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002084 help
2085 Say Y to include VFP support code in the kernel. This is needed
2086 if your hardware includes a VFP unit.
2087
2088 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2089 release notes and additional status information.
2090
2091 Say N if your target does not have VFP hardware.
2092
Catalin Marinas25ebee02007-09-25 15:22:24 +01002093config VFPv3
2094 bool
2095 depends on VFP
2096 default y if CPU_V7
2097
Catalin Marinasb5872db2008-01-10 19:16:17 +01002098config NEON
2099 bool "Advanced SIMD (NEON) Extension support"
2100 depends on VFPv3 && CPU_V7
2101 help
2102 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2103 Extension.
2104
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002105config KERNEL_MODE_NEON
2106 bool "Support for NEON in kernel mode"
Russell Kingc4a30c32013-09-22 11:08:50 +01002107 depends on NEON && AEABI
Ard Biesheuvel73c132c2013-05-16 11:41:48 +02002108 help
2109 Say Y to include support for NEON in kernel mode.
2110
Linus Torvalds1da177e2005-04-16 15:20:36 -07002111endmenu
2112
2113menu "Userspace binary formats"
2114
2115source "fs/Kconfig.binfmt"
2116
2117config ARTHUR
2118 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002119 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002120 help
2121 Say Y here to include the kernel code necessary if you want to run
2122 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2123 experimental; if this sounds frightening, say N and sleep in peace.
2124 You can also say M here to compile this support as a module (which
2125 will be called arthur).
2126
2127endmenu
2128
2129menu "Power management options"
2130
Russell Kingeceab4a2005-11-15 11:31:41 +00002131source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002132
Johannes Bergf4cb5702007-12-08 02:14:00 +01002133config ARCH_SUSPEND_POSSIBLE
Ezequiel Garcia19a05192013-08-16 10:28:24 +01002134 depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \
Uwe Kleine-Königf0d75152012-02-01 10:00:00 +01002135 CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002136 def_bool y
2137
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002138config ARM_CPU_SUSPEND
2139 def_bool PM_SLEEP
2140
Sebastian Capella603fb422014-03-25 01:20:29 +01002141config ARCH_HIBERNATION_POSSIBLE
2142 bool
2143 depends on MMU
2144 default y if ARCH_SUSPEND_POSSIBLE
2145
Linus Torvalds1da177e2005-04-16 15:20:36 -07002146endmenu
2147
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002148source "net/Kconfig"
2149
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002150source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002151
2152source "fs/Kconfig"
2153
Linus Torvalds1da177e2005-04-16 15:20:36 -07002154source "arch/arm/Kconfig.debug"
2155
2156source "security/Kconfig"
2157
2158source "crypto/Kconfig"
2159
2160source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002161
2162source "arch/arm/kvm/Kconfig"