blob: d70260dd7428dc01777c4e917a9cfd5051de854f [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001config ARM
2 bool
3 default y
Russell Kingb1b3f492012-10-06 17:12:25 +01004 select ARCH_BINFMT_ELF_RANDOMIZE_PIE
Catalin Marinas74634492012-07-30 14:41:09 -07005 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
Russell Kingb1b3f492012-10-06 17:12:25 +01006 select ARCH_HAVE_CUSTOM_GPIO_H
Mark Rutland3d067702012-10-30 12:13:42 +00007 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
Russell Kingb1b3f492012-10-06 17:12:25 +01008 select ARCH_WANT_IPC_PARSE_VERSION
Stephen Boydee951c62012-10-29 19:19:34 +01009 select BUILDTIME_EXTABLE_SORT if MMU
Russell Kingb1b3f492012-10-06 17:12:25 +010010 select CPU_PM if (SUSPEND || CPU_IDLE)
Will Deacon39b175a2012-12-04 12:57:11 +010011 select DCACHE_WORD_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && !CPU_BIG_ENDIAN && MMU
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010012 select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI)
Russell Kingb1b3f492012-10-06 17:12:25 +010013 select GENERIC_CLOCKEVENTS_BROADCAST if SMP
14 select GENERIC_IRQ_PROBE
15 select GENERIC_IRQ_SHOW
Russell Kingb1b3f492012-10-06 17:12:25 +010016 select GENERIC_PCI_IOMAP
17 select GENERIC_SMP_IDLE_THREAD
Thomas Gleixnerf7b861b2013-03-21 22:49:38 +010018 select GENERIC_IDLE_POLL_SETUP
Russell Kingb1b3f492012-10-06 17:12:25 +010019 select GENERIC_STRNCPY_FROM_USER
20 select GENERIC_STRNLEN_USER
21 select HARDIRQS_SW_RESEND
22 select HAVE_AOUT
Rabin Vincent09f05d82012-02-18 17:52:41 +010023 select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
Jason Wessel5cbad0e2008-02-20 13:33:40 -060024 select HAVE_ARCH_KGDB
Will Drewry4095ccc2012-11-15 22:12:29 +010025 select HAVE_ARCH_SECCOMP_FILTER
Wade Farnsworth0693bf62012-04-04 16:19:47 +010026 select HAVE_ARCH_TRACEHOOK
Russell Kingb1b3f492012-10-06 17:12:25 +010027 select HAVE_BPF_JIT
28 select HAVE_C_RECORDMCOUNT
29 select HAVE_DEBUG_KMEMLEAK
30 select HAVE_DMA_API_DEBUG
31 select HAVE_DMA_ATTRS
32 select HAVE_DMA_CONTIGUOUS if MMU
33 select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
34 select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
35 select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
36 select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
37 select HAVE_GENERIC_DMA_COHERENT
38 select HAVE_GENERIC_HARDIRQS
39 select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7))
40 select HAVE_IDE if PCI || ISA || PCMCIA
Russell King87c46b62013-05-04 14:38:59 +010041 select HAVE_IRQ_TIME_ACCOUNTING
Russell Kingb1b3f492012-10-06 17:12:25 +010042 select HAVE_KERNEL_GZIP
43 select HAVE_KERNEL_LZMA
44 select HAVE_KERNEL_LZO
45 select HAVE_KERNEL_XZ
Jon Medhurst856bc352011-06-14 13:09:39 +010046 select HAVE_KPROBES if !XIP_KERNEL
Ananth N Mavinakayanahalli9edddaa2008-03-04 14:28:37 -080047 select HAVE_KRETPROBES if (HAVE_KPROBES)
Russell Kingb1b3f492012-10-06 17:12:25 +010048 select HAVE_MEMBLOCK
49 select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
Jamie Iles7ada1892010-02-02 20:24:58 +010050 select HAVE_PERF_EVENTS
Will Deacone513f8b2010-06-25 12:24:53 +010051 select HAVE_REGS_AND_STACK_ACCESS_API
Russell Kingb1b3f492012-10-06 17:12:25 +010052 select HAVE_SYSCALL_TRACEPOINTS
Catalin Marinasaf1839e2012-10-08 16:28:08 -070053 select HAVE_UID16
Anna-Maria Gleixner3d92a712012-05-18 16:45:44 +000054 select KTIME_SCALAR
Russell Kingb1b3f492012-10-06 17:12:25 +010055 select PERF_USE_VMALLOC
56 select RTC_LIB
57 select SYS_SUPPORTS_APM_EMULATION
David Howells786d35d2012-09-28 14:31:03 +093058 select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
59 select MODULES_USE_ELF_REL
Al Viro38a61b62012-10-21 15:54:27 -040060 select CLONE_BACKWARDS
Al Virob68fec22012-12-25 16:29:48 -050061 select OLD_SIGSUSPEND3
Al Viro50bcb7e2012-12-25 19:32:07 -050062 select OLD_SIGACTION
Kevin Hilmanb0088482013-03-28 22:54:40 +010063 select HAVE_CONTEXT_TRACKING
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 help
65 The ARM series is a line of low-power-consumption RISC chip designs
Martin Michlmayrf6c89652006-02-08 21:09:07 +000066 licensed by ARM Ltd and targeted at embedded applications and
Linus Torvalds1da177e2005-04-16 15:20:36 -070067 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
Martin Michlmayrf6c89652006-02-08 21:09:07 +000068 manufactured, but legacy ARM-based PC hardware remains popular in
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 Europe. There is an ARM Linux project with a web page at
70 <http://www.arm.linux.org.uk/>.
71
Russell King74facff2011-06-02 11:16:22 +010072config ARM_HAS_SG_CHAIN
73 bool
74
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020075config NEED_SG_DMA_LENGTH
76 bool
77
78config ARM_DMA_USE_IOMMU
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020079 bool
Russell Kingb1b3f492012-10-06 17:12:25 +010080 select ARM_HAS_SG_CHAIN
81 select NEED_SG_DMA_LENGTH
Marek Szyprowski4ce63fc2012-05-16 15:48:21 +020082
Seung-Woo Kim60460ab2013-02-06 13:21:14 +090083if ARM_DMA_USE_IOMMU
84
85config ARM_DMA_IOMMU_ALIGNMENT
86 int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers"
87 range 4 9
88 default 8
89 help
90 DMA mapping framework by default aligns all buffers to the smallest
91 PAGE_SIZE order which is greater than or equal to the requested buffer
92 size. This works well for buffers up to a few hundreds kilobytes, but
93 for larger buffers it just a waste of address space. Drivers which has
94 relatively small addressing window (like 64Mib) might run out of
95 virtual space with just a few allocations.
96
97 With this parameter you can specify the maximum PAGE_SIZE order for
98 DMA IOMMU buffers. Larger buffers will be aligned only to this
99 specified order. The order is expressed as a power of two multiplied
100 by the PAGE_SIZE.
101
102endif
103
Russell King1a189b92008-04-13 21:41:55 +0100104config HAVE_PWM
105 bool
106
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100107config MIGHT_HAVE_PCI
108 bool
109
Ralf Baechle75e71532007-02-09 17:08:58 +0000110config SYS_SUPPORTS_APM_EMULATION
111 bool
112
Linus Walleijbc581772009-09-15 17:30:37 +0100113config HAVE_TCM
114 bool
115 select GENERIC_ALLOCATOR
116
Russell Kinge119bff2010-01-10 17:23:29 +0000117config HAVE_PROC_CPU
118 bool
119
Al Viro5ea81762007-02-11 15:41:31 +0000120config NO_IOPORT
121 bool
Al Viro5ea81762007-02-11 15:41:31 +0000122
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123config EISA
124 bool
125 ---help---
126 The Extended Industry Standard Architecture (EISA) bus was
127 developed as an open alternative to the IBM MicroChannel bus.
128
129 The EISA bus provided some of the features of the IBM MicroChannel
130 bus while maintaining backward compatibility with cards made for
131 the older ISA bus. The EISA bus saw limited use between 1988 and
132 1995 when it was made obsolete by the PCI bus.
133
134 Say Y here if you are building a kernel for an EISA-based machine.
135
136 Otherwise, say N.
137
138config SBUS
139 bool
140
Russell Kingf16fb1e2007-04-28 09:59:37 +0100141config STACKTRACE_SUPPORT
142 bool
143 default y
144
Nicolas Pitref76e9152008-04-24 01:31:46 -0400145config HAVE_LATENCYTOP_SUPPORT
146 bool
147 depends on !SMP
148 default y
149
Russell Kingf16fb1e2007-04-28 09:59:37 +0100150config LOCKDEP_SUPPORT
151 bool
152 default y
153
Russell King7ad1bcb2006-08-27 12:07:02 +0100154config TRACE_IRQFLAGS_SUPPORT
155 bool
156 default y
157
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158config RWSEM_GENERIC_SPINLOCK
159 bool
160 default y
161
162config RWSEM_XCHGADD_ALGORITHM
163 bool
164
David Howellsf0d1b0b2006-12-08 02:37:49 -0800165config ARCH_HAS_ILOG2_U32
166 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800167
168config ARCH_HAS_ILOG2_U64
169 bool
David Howellsf0d1b0b2006-12-08 02:37:49 -0800170
Ben Dooks89c52ed2009-07-30 23:23:24 +0100171config ARCH_HAS_CPUFREQ
172 bool
173 help
174 Internal node to signify that the ARCH has CPUFREQ support
175 and that the relevant menu configurations are displayed for
176 it.
177
Akinobu Mitab89c3b12006-03-26 01:39:19 -0800178config GENERIC_HWEIGHT
179 bool
180 default y
181
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182config GENERIC_CALIBRATE_DELAY
183 bool
184 default y
185
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100186config ARCH_MAY_HAVE_PC_FDC
187 bool
188
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800189config ZONE_DMA
190 bool
Christoph Lameter5ac6da62007-02-10 01:43:14 -0800191
FUJITA Tomonoriccd7ab72010-03-10 15:23:23 -0800192config NEED_DMA_MAP_STATE
193 def_bool y
194
Rob Herring58af4a22012-03-20 14:33:01 -0500195config ARCH_HAS_DMA_SET_COHERENT_MASK
196 bool
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198config GENERIC_ISA_DMA
199 bool
200
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201config FIQ
202 bool
203
Rob Herring13a50452012-02-07 09:28:22 -0600204config NEED_RET_TO_USER
205 bool
206
Al Viro034d2f52005-12-19 16:27:59 -0500207config ARCH_MTD_XIP
208 bool
209
Hyok S. Choic760fc12006-03-27 15:18:50 +0100210config VECTORS_BASE
211 hex
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900212 default 0xffff0000 if MMU || CPU_HIGH_VECTOR
Hyok S. Choic760fc12006-03-27 15:18:50 +0100213 default DRAM_BASE if REMAP_VECTORS_TO_RAM
214 default 0x00000000
215 help
216 The base address of exception vectors.
217
Russell Kingdc21af92011-01-04 19:09:43 +0000218config ARM_PATCH_PHYS_VIRT
Russell Kingc1beced2011-08-10 10:23:45 +0100219 bool "Patch physical to virtual translations at runtime" if EMBEDDED
220 default y
Nicolas Pitreb511d752011-02-21 06:53:35 +0100221 depends on !XIP_KERNEL && MMU
Russell Kingdc21af92011-01-04 19:09:43 +0000222 depends on !ARCH_REALVIEW || !SPARSEMEM
223 help
Russell King111e9a52011-05-12 10:02:42 +0100224 Patch phys-to-virt and virt-to-phys translation functions at
225 boot and module load time according to the position of the
226 kernel in system memory.
Russell Kingdc21af92011-01-04 19:09:43 +0000227
Russell King111e9a52011-05-12 10:02:42 +0100228 This can only be used with non-XIP MMU kernels where the base
Nicolas Pitredaece592011-08-12 00:14:29 +0100229 of physical memory is at a 16MB boundary.
Russell Kingdc21af92011-01-04 19:09:43 +0000230
Russell Kingc1beced2011-08-10 10:23:45 +0100231 Only disable this option if you know that you do not require
232 this feature (eg, building a kernel for a single machine) and
233 you need to shrink the kernel to the minimal size.
234
Rob Herring01464222012-08-28 13:06:41 -0500235config NEED_MACH_GPIO_H
236 bool
237 help
238 Select this when mach/gpio.h is required to provide special
239 definitions for this platform. The need for mach/gpio.h should
240 be avoided when possible.
241
Rob Herringc334bc12012-03-04 22:03:33 -0600242config NEED_MACH_IO_H
243 bool
244 help
245 Select this when mach/io.h is required to provide special
246 definitions for this platform. The need for mach/io.h should
247 be avoided when possible.
248
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400249config NEED_MACH_MEMORY_H
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400250 bool
Russell King111e9a52011-05-12 10:02:42 +0100251 help
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400252 Select this when mach/memory.h is required to provide special
253 definitions for this platform. The need for mach/memory.h should
254 be avoided when possible.
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400255
256config PHYS_OFFSET
Nicolas Pitre974c0722011-12-02 23:09:42 +0100257 hex "Physical address of main memory" if MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400258 depends on !ARM_PATCH_PHYS_VIRT && !NEED_MACH_MEMORY_H
Nicolas Pitre974c0722011-12-02 23:09:42 +0100259 default DRAM_BASE if !MMU
Nicolas Pitre1b9f95f2011-07-05 22:52:51 -0400260 help
261 Please provide the physical address corresponding to the
262 location of main memory in your system.
Russell Kingcada3c02011-01-04 19:39:29 +0000263
Simon Glass87e040b2011-08-16 23:44:26 +0100264config GENERIC_BUG
265 def_bool y
266 depends on BUG
267
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268source "init/Kconfig"
269
Matt Helsleydc52ddc2008-10-18 20:27:21 -0700270source "kernel/Kconfig.freezer"
271
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272menu "System Type"
273
Hyok S. Choi3c427972009-07-24 12:35:00 +0100274config MMU
275 bool "MMU-based Paged Memory Management Support"
276 default y
277 help
278 Select if you want MMU-based virtualised addressing space
279 support by paged memory management. If unsure, say 'Y'.
280
Russell Kingccf50e22010-03-15 19:03:06 +0000281#
282# The "ARM system type" choice list is ordered alphabetically by option
283# text. Please add new entries in the option alphabetic order.
284#
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285choice
286 prompt "ARM system type"
Arnd Bergmann1420b222013-02-14 13:33:36 +0100287 default ARCH_VERSATILE if !MMU
288 default ARCH_MULTIPLATFORM if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289
Rob Herring387798b2012-09-06 13:41:12 -0500290config ARCH_MULTIPLATFORM
291 bool "Allow multiple platforms to be selected"
Russell Kingb1b3f492012-10-06 17:12:25 +0100292 depends on MMU
Rob Herring387798b2012-09-06 13:41:12 -0500293 select ARM_PATCH_PHYS_VIRT
294 select AUTO_ZRELADDR
Dinh Nguyen66314222012-07-18 16:07:18 -0600295 select COMMON_CLK
Rob Herring387798b2012-09-06 13:41:12 -0500296 select MULTI_IRQ_HANDLER
Dinh Nguyen66314222012-07-18 16:07:18 -0600297 select SPARSE_IRQ
298 select USE_OF
Dinh Nguyen66314222012-07-18 16:07:18 -0600299
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100300config ARCH_INTEGRATOR
301 bool "ARM Ltd. Integrator family"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100302 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100303 select ARM_AMBA
Linus Walleija6131632012-06-11 17:33:12 +0200304 select COMMON_CLK
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200305 select COMMON_CLK_VERSATILE
Russell Kingb1b3f492012-10-06 17:12:25 +0100306 select GENERIC_CLOCKEVENTS
Linus Walleij9904f792011-12-09 10:29:23 +0100307 select HAVE_TCM
Russell Kingc5a0adb2010-01-16 20:16:10 +0000308 select ICST
Russell Kingb1b3f492012-10-06 17:12:25 +0100309 select MULTI_IRQ_HANDLER
310 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000311 select PLAT_VERSATILE
Linus Walleij695436e2012-02-26 10:46:48 +0100312 select SPARSE_IRQ
Linus Walleij2389d502012-10-31 22:04:31 +0100313 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100314 help
315 Support for ARM's Integrator platform.
316
317config ARCH_REALVIEW
318 bool "ARM Ltd. RealView family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100319 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100320 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100321 select ARM_TIMER_SP804
Linus Walleijf9a6aa42012-08-06 18:32:08 +0200322 select COMMON_CLK
323 select COMMON_CLK_VERSATILE
Catalin Marinasae30cea2008-02-04 17:26:55 +0100324 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100325 select GPIO_PL061 if GPIOLIB
326 select ICST
327 select NEED_MACH_MEMORY_H
Russell Kingf4b8b312010-01-14 12:48:06 +0000328 select PLAT_VERSATILE
Russell King3cb5ee42011-01-18 20:13:20 +0000329 select PLAT_VERSATILE_CLCD
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100330 help
331 This enables support for ARM Ltd RealView boards.
332
333config ARCH_VERSATILE
334 bool "ARM Ltd. Versatile family"
Russell Kingb1b3f492012-10-06 17:12:25 +0100335 select ARCH_WANT_OPTIONAL_GPIOLIB
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100336 select ARM_AMBA
Russell Kingb1b3f492012-10-06 17:12:25 +0100337 select ARM_TIMER_SP804
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100338 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100339 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100340 select GENERIC_CLOCKEVENTS
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900341 select HAVE_MACH_CLKDEV
Russell Kingc5a0adb2010-01-16 20:16:10 +0000342 select ICST
Russell Kingf4b8b312010-01-14 12:48:06 +0000343 select PLAT_VERSATILE
Russell King3414ba82011-01-18 20:12:10 +0000344 select PLAT_VERSATILE_CLCD
Russell Kingb1b3f492012-10-06 17:12:25 +0100345 select PLAT_VERSATILE_CLOCK
Linus Walleij2389d502012-10-31 22:04:31 +0100346 select VERSATILE_FPGA_IRQ
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100347 help
348 This enables support for ARM Ltd Versatile board.
349
Andrew Victor8fc5ffa2006-06-29 16:06:33 +0100350config ARCH_AT91
351 bool "Atmel AT91"
Ryan Mallonf373e8c2009-02-10 21:02:08 +0100352 select ARCH_REQUIRE_GPIOLIB
Jean-Christophe PLAGNIOL-VILLARDbd602992011-02-02 07:27:07 +0100353 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100354 select HAVE_CLK
Nicolas Ferree2615012011-11-22 22:26:09 +0100355 select IRQ_DOMAIN
Rob Herring01464222012-08-28 13:06:41 -0500356 select NEED_MACH_GPIO_H
Rob Herring1ac02d72012-04-04 17:48:04 -0500357 select NEED_MACH_IO_H if PCCARD
Jean-Christophe PLAGNIOL-VILLARD6732ae52012-07-12 23:35:02 +0800358 select PINCTRL
359 select PINCTRL_AT91 if USE_OF
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100360 help
Nicolas Ferre929e9942012-03-15 12:21:12 +0100361 This enables support for systems based on Atmel
362 AT91RM9200 and AT91SAM9* processors.
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100363
Russell King93e22562012-10-12 14:20:52 +0100364config ARCH_CLPS711X
365 bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
Alexander Shiyana3b8d4a2012-10-09 20:05:56 +0400366 select ARCH_REQUIRE_GPIOLIB
Alexander Shiyanea7d1bc2012-11-17 17:57:11 +0400367 select AUTO_ZRELADDR
Russell King93e22562012-10-12 14:20:52 +0100368 select CLKDEV_LOOKUP
Alexander Shiyanc99f72a2013-05-13 21:07:32 +0400369 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100370 select COMMON_CLK
371 select CPU_ARM720T
Alexander Shiyan4a8355c2012-10-10 19:45:27 +0400372 select GENERIC_CLOCKEVENTS
Alexander Shiyan65976192013-05-13 21:07:36 +0400373 select MFD_SYSCON
Alexander Shiyan99f04c82012-11-17 17:57:14 +0400374 select MULTI_IRQ_HANDLER
Alexander Shiyan0d8be812012-11-17 17:57:13 +0400375 select SPARSE_IRQ
Russell King93e22562012-10-12 14:20:52 +0100376 help
377 Support for Cirrus Logic 711x/721x/731x based boards.
378
Russell King788c9702009-04-26 14:21:59 +0100379config ARCH_GEMINI
380 bool "Cortina Systems Gemini"
Russell King788c9702009-04-26 14:21:59 +0100381 select ARCH_REQUIRE_GPIOLIB
John Stultz5cfc8ee2010-03-24 00:22:36 +0000382 select ARCH_USES_GETTIMEOFFSET
Arnd Bergmann662146b2013-01-04 13:38:03 +0000383 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100384 select CPU_FA526
Russell King788c9702009-04-26 14:21:59 +0100385 help
386 Support for the Cortina Systems Gemini family SoCs
387
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388config ARCH_EBSA110
389 bool "EBSA-110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100390 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000391 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100392 select ISA
Rob Herringc334bc12012-03-04 22:03:33 -0600393 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400394 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100395 select NO_IOPORT
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 help
397 This is an evaluation board for the StrongARM processor available
Martin Michlmayrf6c89652006-02-08 21:09:07 +0000398 from Digital. It has limited hardware on-board, including an
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399 Ethernet interface, two PCMCIA sockets, two serial ports and a
400 parallel port.
401
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000402config ARCH_EP93XX
403 bool "EP93xx-based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100404 select ARCH_HAS_HOLES_MEMORYMODEL
405 select ARCH_REQUIRE_GPIOLIB
406 select ARCH_USES_GETTIMEOFFSET
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000407 select ARM_AMBA
408 select ARM_VIC
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100409 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100410 select CPU_ARM920T
Arnd Bergmann5725aea2011-10-31 23:11:46 +0100411 select NEED_MACH_MEMORY_H
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000412 help
413 This enables support for the Cirrus EP93xx series of CPUs.
414
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415config ARCH_FOOTBRIDGE
416 bool "FootBridge"
Russell Kingc7508152008-10-26 10:55:14 +0000417 select CPU_SA110
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 select FOOTBRIDGE
Russell King4e8d7632011-01-28 21:00:39 +0000419 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200420 select HAVE_IDE
Rob Herring8ef6e622012-03-01 20:48:12 -0600421 select NEED_MACH_IO_H if !MMU
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400422 select NEED_MACH_MEMORY_H
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000423 help
424 Support for systems based on the DC21285 companion chip
425 ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100427config ARCH_NETX
428 bool "Hilscher NetX based"
Russell Kingb1b3f492012-10-06 17:12:25 +0100429 select ARM_VIC
Russell King234b6ced2011-05-08 14:09:47 +0100430 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000431 select CPU_ARM926T
Uwe Kleine-König2fcfe6b2008-12-09 21:57:24 +0100432 select GENERIC_CLOCKEVENTS
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000433 help
Deepak Saxena4af6fee2006-06-20 21:30:44 +0100434 This enables support for systems based on the Hilscher NetX Soc
435
Russell King3b938be2007-05-12 11:25:44 +0100436config ARCH_IOP13XX
437 bool "IOP13xx-based"
438 depends on MMU
Russell King3b938be2007-05-12 11:25:44 +0100439 select ARCH_SUPPORTS_MSI
Russell Kingb1b3f492012-10-06 17:12:25 +0100440 select CPU_XSC3
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400441 select NEED_MACH_MEMORY_H
Rob Herring13a50452012-02-07 09:28:22 -0600442 select NEED_RET_TO_USER
Russell Kingb1b3f492012-10-06 17:12:25 +0100443 select PCI
444 select PLAT_IOP
445 select VMSPLIT_1G
Russell King3b938be2007-05-12 11:25:44 +0100446 help
447 Support for Intel's IOP13XX (XScale) family of processors.
448
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100449config ARCH_IOP32X
450 bool "IOP32x-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100451 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100452 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000453 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500454 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600455 select NEED_RET_TO_USER
Russell Kingf7e68bb2005-05-05 14:49:01 +0100456 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100457 select PLAT_IOP
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000458 help
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100459 Support for Intel's 80219 and IOP32X (XScale) family of
460 processors.
461
462config ARCH_IOP33X
463 bool "IOP33x-based"
464 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +0100465 select ARCH_REQUIRE_GPIOLIB
Russell Kingc7508152008-10-26 10:55:14 +0000466 select CPU_XSCALE
Rob Herring01464222012-08-28 13:06:41 -0500467 select NEED_MACH_GPIO_H
Rob Herring13a50452012-02-07 09:28:22 -0600468 select NEED_RET_TO_USER
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100469 select PCI
Russell Kingb1b3f492012-10-06 17:12:25 +0100470 select PLAT_IOP
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100471 help
472 Support for Intel's IOP33X (XScale) family of processors.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473
Russell King3b938be2007-05-12 11:25:44 +0100474config ARCH_IXP4XX
475 bool "IXP4xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100476 depends on MMU
Rob Herring58af4a22012-03-20 14:33:01 -0500477 select ARCH_HAS_DMA_SET_COHERENT_MASK
Russell Kingb1b3f492012-10-06 17:12:25 +0100478 select ARCH_REQUIRE_GPIOLIB
Russell King234b6ced2011-05-08 14:09:47 +0100479 select CLKSRC_MMIO
Russell Kingc7508152008-10-26 10:55:14 +0000480 select CPU_XSCALE
Russell Kingb1b3f492012-10-06 17:12:25 +0100481 select DMABOUNCE if PCI
Russell King3b938be2007-05-12 11:25:44 +0100482 select GENERIC_CLOCKEVENTS
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +0100483 select MIGHT_HAVE_PCI
Rob Herringc334bc12012-03-04 22:03:33 -0600484 select NEED_MACH_IO_H
Florian Fainelli9296d942013-04-09 14:29:26 +0200485 select USB_EHCI_BIG_ENDIAN_MMIO
486 select USB_EHCI_BIG_ENDIAN_DESC
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100487 help
Russell King3b938be2007-05-12 11:25:44 +0100488 Support for Intel's IXP4XX (XScale) family of processors.
Lennert Buytenhekc4713072006-03-28 21:18:54 +0100489
Saeed Bisharaedabd382009-08-06 15:12:43 +0300490config ARCH_DOVE
491 bool "Marvell Dove"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300492 select ARCH_REQUIRE_GPIOLIB
Sebastian Hesselbarth756b2532013-05-02 19:56:12 +0100493 select CPU_PJ4
Saeed Bisharaedabd382009-08-06 15:12:43 +0300494 select GENERIC_CLOCKEVENTS
Russell King0f81bd42012-09-09 20:34:13 +0100495 select MIGHT_HAVE_PCI
Sebastian Hesselbarth9139acd2012-11-19 10:39:55 +0100496 select PINCTRL
497 select PINCTRL_DOVE
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200498 select PLAT_ORION_LEGACY
Russell King0f81bd42012-09-09 20:34:13 +0100499 select USB_ARCH_HAS_EHCI
Thomas Petazzoni7d554902013-03-21 17:59:17 +0100500 select MVEBU_MBUS
Saeed Bisharaedabd382009-08-06 15:12:43 +0300501 help
502 Support for the Marvell Dove SoC 88AP510
503
Saeed Bishara651c74c2008-06-22 22:45:06 +0200504config ARCH_KIRKWOOD
505 bool "Marvell Kirkwood"
Andrew Lunn0e2ee0c2013-01-27 11:07:23 +0100506 select ARCH_HAS_CPUFREQ
Erik Benadaa8865652009-05-28 17:08:55 -0700507 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100508 select CPU_FEROCEON
Saeed Bishara651c74c2008-06-22 22:45:06 +0200509 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100510 select PCI
Jason Gunthorpe1dc831b2012-11-21 00:19:06 -0700511 select PCI_QUIRKS
Andrew Lunnf9e75922012-11-17 17:00:44 +0100512 select PINCTRL
513 select PINCTRL_KIRKWOOD
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200514 select PLAT_ORION_LEGACY
Thomas Petazzoni5cc06732013-03-21 17:59:16 +0100515 select MVEBU_MBUS
Saeed Bishara651c74c2008-06-22 22:45:06 +0200516 help
517 Support for the following Marvell Kirkwood series SoCs:
518 88F6180, 88F6192 and 88F6281.
519
Russell King788c9702009-04-26 14:21:59 +0100520config ARCH_MV78XX0
521 bool "Marvell MV78xx0"
Erik Benadaa8865652009-05-28 17:08:55 -0700522 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100523 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100524 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100525 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200526 select PLAT_ORION_LEGACY
Thomas Petazzoni95b80e02013-03-21 17:59:19 +0100527 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100528 help
529 Support for the following Marvell MV78xx0 series SoCs:
530 MV781x0, MV782x0.
531
532config ARCH_ORION5X
533 bool "Marvell Orion"
534 depends on MMU
Erik Benadaa8865652009-05-28 17:08:55 -0700535 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100536 select CPU_FEROCEON
Russell King788c9702009-04-26 14:21:59 +0100537 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100538 select PCI
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +0200539 select PLAT_ORION_LEGACY
Thomas Petazzoni5d1190e2013-03-21 17:59:18 +0100540 select MVEBU_MBUS
Russell King788c9702009-04-26 14:21:59 +0100541 help
542 Support for the following Marvell Orion 5x series SoCs:
543 Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
544 Orion-2 (5281), Orion-1-90 (6183).
545
546config ARCH_MMP
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500547 bool "Marvell PXA168/910/MMP2"
Russell King788c9702009-04-26 14:21:59 +0100548 depends on MMU
Russell King788c9702009-04-26 14:21:59 +0100549 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100550 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100551 select GENERIC_ALLOCATOR
Russell King788c9702009-04-26 14:21:59 +0100552 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800553 select GPIO_PXA
Haojian Zhuangc24b3112012-04-12 19:02:02 +0800554 select IRQ_DOMAIN
Russell Kingb1b3f492012-10-06 17:12:25 +0100555 select NEED_MACH_GPIO_H
Axel Lin7c8f86a2012-11-28 14:42:35 +0800556 select PINCTRL
Russell King788c9702009-04-26 14:21:59 +0100557 select PLAT_PXA
Haojian Zhuang0bd86962010-09-08 09:42:42 -0400558 select SPARSE_IRQ
Russell King788c9702009-04-26 14:21:59 +0100559 help
Haojian Zhuang2f7e8fa2009-12-04 09:41:28 -0500560 Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
Russell King788c9702009-04-26 14:21:59 +0100561
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100562config ARCH_KS8695
563 bool "Micrel/Kendin KS8695"
Hartley Sweeten98830bc2010-05-17 17:18:10 +0100564 select ARCH_REQUIRE_GPIOLIB
Linus Walleijc7e783d2012-08-29 20:27:22 +0200565 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100566 select CPU_ARM922T
Linus Walleijc7e783d2012-08-29 20:27:22 +0200567 select GENERIC_CLOCKEVENTS
Russell Kingb1b3f492012-10-06 17:12:25 +0100568 select NEED_MACH_MEMORY_H
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100569 help
570 Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
571 System-on-Chip devices.
572
Russell King788c9702009-04-26 14:21:59 +0100573config ARCH_W90X900
574 bool "Nuvoton W90X900 CPU"
wanzongshunc52d3d62009-06-10 15:49:32 +0100575 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100576 select CLKDEV_LOOKUP
Russell King6fa5d5f2011-05-08 15:34:39 +0100577 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100578 select CPU_ARM926T
wanzongshun58b53692009-08-14 15:36:44 +0100579 select GENERIC_CLOCKEVENTS
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200580 help
wanzongshuna8bc4ea2009-08-14 15:38:29 +0100581 Support for Nuvoton (Winbond logic dept.) ARM9 processor,
582 At present, the w90x900 has been renamed nuc900, regarding
583 the ARM series product line, you can login the following
584 link address to know more.
585
586 <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
587 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400588
Russell King93e22562012-10-12 14:20:52 +0100589config ARCH_LPC32XX
590 bool "NXP LPC32XX"
591 select ARCH_REQUIRE_GPIOLIB
592 select ARM_AMBA
Russell King40737232011-01-06 22:32:52 +0000593 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100594 select CLKSRC_MMIO
Russell King93e22562012-10-12 14:20:52 +0100595 select CPU_ARM926T
596 select GENERIC_CLOCKEVENTS
597 select HAVE_IDE
598 select HAVE_PWM
599 select USB_ARCH_HAS_OHCI
600 select USE_OF
601 help
602 Support for the NXP LPC32XX family of processors
603
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604config ARCH_PXA
eric miao2c8086a2007-09-11 19:13:17 -0700605 bool "PXA2xx/PXA3xx-based"
Russell Kinga4f7e762006-06-28 12:52:41 +0100606 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100607 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100608 select ARCH_MTD_XIP
609 select ARCH_REQUIRE_GPIOLIB
610 select ARM_CPU_SUSPEND if PM
611 select AUTO_ZRELADDR
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100612 select CLKDEV_LOOKUP
Russell King234b6ced2011-05-08 14:09:47 +0100613 select CLKSRC_MMIO
Eric Miao981d0f32007-07-24 01:22:43 +0100614 select GENERIC_CLOCKEVENTS
Haojian Zhuang157d2642011-10-17 20:37:52 +0800615 select GPIO_PXA
Russell Kingb1b3f492012-10-06 17:12:25 +0100616 select HAVE_IDE
617 select MULTI_IRQ_HANDLER
618 select NEED_MACH_GPIO_H
Eric Miaobd5ce432009-01-20 12:06:01 +0800619 select PLAT_PXA
Haojian Zhuang6ac6b812010-08-20 15:23:59 +0800620 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000621 help
eric miao2c8086a2007-09-11 19:13:17 -0700622 Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700623
Russell King788c9702009-04-26 14:21:59 +0100624config ARCH_MSM
625 bool "Qualcomm MSM"
Pavel Machek923a0812010-06-02 11:11:12 -0700626 select ARCH_REQUIRE_GPIOLIB
Stephen Boydbd323442011-02-23 09:37:42 -0800627 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100628 select GENERIC_CLOCKEVENTS
629 select HAVE_CLK
Eric Miao49cbe782009-01-20 14:15:18 +0800630 help
Daniel Walker4b53eb42010-01-01 15:11:43 -0800631 Support for Qualcomm MSM/QSD based systems. This runs on the
632 apps processor of the MSM/QSD and depends on a shared memory
633 interface to the modem processor which runs the baseband
634 stack and controls some vital subsystems
635 (clock and power control, etc).
Eric Miao49cbe782009-01-20 14:15:18 +0800636
Magnus Dammc793c1b2010-02-05 11:14:49 +0000637config ARCH_SHMOBILE
Paul Mundt6d72ad32010-11-16 16:10:20 +0900638 bool "Renesas SH-Mobile / R-Mobile"
Magnus Damm69469992013-06-10 18:46:47 +0900639 select ARM_PATCH_PHYS_VIRT
Paul Mundt5e93c6b2011-01-07 10:29:26 +0900640 select CLKDEV_LOOKUP
Russell Kingb1b3f492012-10-06 17:12:25 +0100641 select GENERIC_CLOCKEVENTS
Stephen Boyd4c3ffff2013-02-27 15:28:14 -0800642 select HAVE_ARM_SCU if SMP
643 select HAVE_ARM_TWD if LOCAL_TIMERS
Russell Kingb1b3f492012-10-06 17:12:25 +0100644 select HAVE_CLK
Kyungmin Parkaa3831c2011-07-18 16:34:54 +0900645 select HAVE_MACH_CLKDEV
Dave Martin3b556582011-12-07 15:38:04 +0000646 select HAVE_SMP
Dave Martince5ea9f2011-11-29 15:56:19 +0000647 select MIGHT_HAVE_CACHE_L2X0
Magnus Damm60f14352010-12-28 08:26:52 +0000648 select MULTI_IRQ_HANDLER
Russell Kingb1b3f492012-10-06 17:12:25 +0100649 select NO_IOPORT
Laurent Pinchart2cd3c922013-05-31 05:00:27 +0200650 select PINCTRL
Russell Kingb1b3f492012-10-06 17:12:25 +0100651 select PM_GENERIC_DOMAINS if PM
652 select SPARSE_IRQ
Magnus Dammc793c1b2010-02-05 11:14:49 +0000653 help
Paul Mundt6d72ad32010-11-16 16:10:20 +0900654 Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
Magnus Dammc793c1b2010-02-05 11:14:49 +0000655
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656config ARCH_RPC
657 bool "RiscPC"
658 select ARCH_ACORN
viro@ZenIV.linux.org.uka08b6b72005-09-06 01:48:42 +0100659 select ARCH_MAY_HAVE_PC_FDC
Russell King07f841b2008-10-01 17:11:06 +0100660 select ARCH_SPARSEMEM_ENABLE
John Stultz5cfc8ee2010-03-24 00:22:36 +0000661 select ARCH_USES_GETTIMEOFFSET
Russell Kingb1b3f492012-10-06 17:12:25 +0100662 select FIQ
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200663 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100664 select HAVE_PATA_PLATFORM
665 select ISA_DMA_API
Rob Herringc334bc12012-03-04 22:03:33 -0600666 select NEED_MACH_IO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400667 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100668 select NO_IOPORT
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100669 select VIRT_TO_BUS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 help
671 On the Acorn Risc-PC, Linux can support the internal IDE disk and
672 CD-ROM interface, serial and parallel port, and the floppy drive.
673
674config ARCH_SA1100
675 bool "SA1100-based"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100676 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100677 select ARCH_MTD_XIP
Michael Buesch7444a722008-07-25 01:46:11 -0700678 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100679 select ARCH_SPARSEMEM_ENABLE
680 select CLKDEV_LOOKUP
681 select CLKSRC_MMIO
682 select CPU_FREQ
683 select CPU_SA1100
684 select GENERIC_CLOCKEVENTS
Arnd Bergmannd0ee9f42011-10-01 21:10:32 +0200685 select HAVE_IDE
Russell Kingb1b3f492012-10-06 17:12:25 +0100686 select ISA
Rob Herring01464222012-08-28 13:06:41 -0500687 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400688 select NEED_MACH_MEMORY_H
Russell King375dec92012-02-23 14:29:33 +0100689 select SPARSE_IRQ
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000690 help
691 Support for StrongARM 11x0 based boards.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700692
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900693config ARCH_S3C24XX
694 bool "Samsung S3C24XX SoCs"
Ben Dooks9d56c022009-07-30 23:23:25 +0100695 select ARCH_HAS_CPUFREQ
Kukjin Kim53650432013-04-04 09:04:30 +0900696 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100697 select CLKDEV_LOOKUP
Romain Naour7f78b6e2013-01-09 18:47:04 -0800698 select CLKSRC_MMIO
699 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900700 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100701 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900702 select HAVE_S3C2410_I2C if I2C
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900703 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100704 select HAVE_S3C_RTC if RTC_CLASS
Heiko Stuebner17453dd2013-03-07 12:38:25 +0900705 select MULTI_IRQ_HANDLER
Rob Herring01464222012-08-28 13:06:41 -0500706 select NEED_MACH_GPIO_H
Rob Herringc334bc12012-03-04 22:03:33 -0600707 select NEED_MACH_IO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900708 select SAMSUNG_ATAGS
Linus Torvalds1da177e2005-04-16 15:20:36 -0700709 help
Kukjin Kimb130d5c2012-02-03 14:29:23 +0900710 Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443
711 and S3C2450 SoCs based systems, such as the Simtec Electronics BAST
712 (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
713 Samsung SMDK2410 development board (and derivatives).
Ben Dooks63b1f512010-04-30 16:32:26 +0900714
Ben Dooksa08ab632008-10-21 14:06:39 +0100715config ARCH_S3C64XX
716 bool "Samsung S3C64XX"
Ben Dooks89c52ed2009-07-30 23:23:24 +0100717 select ARCH_HAS_CPUFREQ
Ben Dooks89f0ce72010-01-26 15:49:15 +0900718 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100719 select ARM_VIC
720 select CLKDEV_LOOKUP
Romain Naour04a49b72013-01-09 18:47:04 -0800721 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100722 select CPU_V6
Romain Naour04a49b72013-01-09 18:47:04 -0800723 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900724 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100725 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900726 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900727 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100728 select HAVE_TCM
Rob Herring01464222012-08-28 13:06:41 -0500729 select NEED_MACH_GPIO_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100730 select NO_IOPORT
731 select PLAT_SAMSUNG
732 select S3C_DEV_NAND
733 select S3C_GPIO_TRACK
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900734 select SAMSUNG_ATAGS
Russell Kingb1b3f492012-10-06 17:12:25 +0100735 select SAMSUNG_CLKSRC
736 select SAMSUNG_GPIOLIB_4BIT
737 select SAMSUNG_IRQ_VIC_TIMER
738 select USB_ARCH_HAS_OHCI
Ben Dooksa08ab632008-10-21 14:06:39 +0100739 help
740 Samsung S3C64XX series based systems
741
Kukjin Kim49b7a492010-09-07 15:47:18 +0900742config ARCH_S5P64X0
743 bool "Samsung S5P6440 S5P6450"
Thomas Abrahamd8b22d22011-06-14 19:12:27 +0900744 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900745 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100746 select CPU_V6
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900747 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900748 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100749 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900750 select HAVE_S3C2410_I2C if I2C
Russell Kingb1b3f492012-10-06 17:12:25 +0100751 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Kukjin Kim754961a2010-11-13 16:11:46 +0900752 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500753 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900754 select SAMSUNG_ATAGS
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900755 help
Kukjin Kim49b7a492010-09-07 15:47:18 +0900756 Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
757 SMDK6450.
Kukjin Kimc4ffccd2010-01-14 08:19:36 +0900758
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200759config ARCH_S5PC100
760 bool "Samsung S5PC100"
Kukjin Kim53650432013-04-04 09:04:30 +0900761 select ARCH_REQUIRE_GPIOLIB
Thomas Abraham29e8eb02011-06-14 19:12:27 +0900762 select CLKDEV_LOOKUP
Romain Naour6a5a2e32013-01-09 18:47:04 -0800763 select CLKSRC_MMIO
Byungho Min5a7652f2009-06-23 21:39:42 +0900764 select CPU_V7
Romain Naour6a5a2e32013-01-09 18:47:04 -0800765 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900766 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100767 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900768 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900769 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100770 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500771 select NEED_MACH_GPIO_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900772 select SAMSUNG_ATAGS
Byungho Min5a7652f2009-06-23 21:39:42 +0900773 help
Marek Szyprowskiacc84702010-05-20 07:51:08 +0200774 Samsung S5PC100 series based systems
Byungho Min5a7652f2009-06-23 21:39:42 +0900775
Kukjin Kim170f4e42010-02-24 16:40:44 +0900776config ARCH_S5PV210
777 bool "Samsung S5PV210/S5PC110"
Russell Kingb1b3f492012-10-06 17:12:25 +0100778 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900779 select ARCH_HAS_HOLES_MEMORYMODEL
Russell Kingb1b3f492012-10-06 17:12:25 +0100780 select ARCH_SPARSEMEM_ENABLE
Thomas Abrahamb2a9dd42011-06-14 19:12:27 +0900781 select CLKDEV_LOOKUP
Chanwoo Choi0665ccc2011-07-18 15:07:14 +0900782 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100783 select CPU_V7
Sangbeom Kim9e65bbf2011-03-12 08:05:19 +0900784 select GENERIC_CLOCKEVENTS
Tomasz Figa880cf072013-06-19 01:22:20 +0900785 select GPIO_SAMSUNG
Russell Kingb1b3f492012-10-06 17:12:25 +0100786 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900787 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900788 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100789 select HAVE_S3C_RTC if RTC_CLASS
Rob Herring01464222012-08-28 13:06:41 -0500790 select NEED_MACH_GPIO_H
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400791 select NEED_MACH_MEMORY_H
Tomasz Figacd8dc7a2013-06-15 09:01:49 +0900792 select SAMSUNG_ATAGS
Kukjin Kim170f4e42010-02-24 16:40:44 +0900793 help
794 Samsung S5PV210/S5PC110 series based systems
795
Kukjin Kim83014572011-11-06 13:54:56 +0900796config ARCH_EXYNOS
Russell King93e22562012-10-12 14:20:52 +0100797 bool "Samsung EXYNOS"
Russell Kingb1b3f492012-10-06 17:12:25 +0100798 select ARCH_HAS_CPUFREQ
Kamil Debski0f75a962011-07-21 16:42:30 +0900799 select ARCH_HAS_HOLES_MEMORYMODEL
Tomasz Figae245f962013-06-19 01:26:42 +0900800 select ARCH_REQUIRE_GPIOLIB
Russell Kingb1b3f492012-10-06 17:12:25 +0100801 select ARCH_SPARSEMEM_ENABLE
Tomasz Figae245f962013-06-19 01:26:42 +0900802 select ARM_GIC
Russell Kingb1b3f492012-10-06 17:12:25 +0100803 select CLKDEV_LOOKUP
Olof Johansson340fcb52013-04-26 11:47:45 -0700804 select COMMON_CLK
Russell Kingb1b3f492012-10-06 17:12:25 +0100805 select CPU_V7
806 select GENERIC_CLOCKEVENTS
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900807 select HAVE_CLK
Kukjin Kim20676c12010-11-13 16:08:32 +0900808 select HAVE_S3C2410_I2C if I2C
Kyungmin Parkc39d8d52010-11-13 16:01:59 +0900809 select HAVE_S3C2410_WATCHDOG if WATCHDOG
Russell Kingb1b3f492012-10-06 17:12:25 +0100810 select HAVE_S3C_RTC if RTC_CLASS
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400811 select NEED_MACH_MEMORY_H
Tomasz Figa6e726ea2013-06-15 09:28:55 +0900812 select SPARSE_IRQ
Tomasz Figaf8b1ac02013-06-15 09:01:11 +0900813 select USE_OF
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900814 help
Kukjin Kim83014572011-11-06 13:54:56 +0900815 Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
Changhwan Youncc0e72b2010-07-16 12:15:38 +0900816
Linus Torvalds1da177e2005-04-16 15:20:36 -0700817config ARCH_SHARK
818 bool "Shark"
Russell Kingb1b3f492012-10-06 17:12:25 +0100819 select ARCH_USES_GETTIMEOFFSET
Russell Kingc7508152008-10-26 10:55:14 +0000820 select CPU_SA110
Russell Kingf7e68bb2005-05-05 14:49:01 +0100821 select ISA
822 select ISA_DMA
Nicolas Pitre0cdc8b92011-09-02 22:26:55 -0400823 select NEED_MACH_MEMORY_H
Russell Kingb1b3f492012-10-06 17:12:25 +0100824 select PCI
Arnd Bergmannb4811ba2013-03-13 17:36:37 +0100825 select VIRT_TO_BUS
Russell Kingb1b3f492012-10-06 17:12:25 +0100826 select ZONE_DMA
Martin Michlmayrf999b8b2006-02-08 21:09:05 +0000827 help
828 Support for the StrongARM based Digital DNARD machine, also known
829 as "Shark" (<http://www.shark-linux.de/shark.html>).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100831config ARCH_DAVINCI
832 bool "TI DaVinci"
Russell Kingb1b3f492012-10-06 17:12:25 +0100833 select ARCH_HAS_HOLES_MEMORYMODEL
David Brownelldce11152008-09-07 23:41:04 -0700834 select ARCH_REQUIRE_GPIOLIB
Jean-Christop PLAGNIOL-VILLARD6d803ba2010-11-17 10:04:33 +0100835 select CLKDEV_LOOKUP
David Brownell20e99692009-05-07 09:31:42 -0700836 select GENERIC_ALLOCATOR
Russell Kingb1b3f492012-10-06 17:12:25 +0100837 select GENERIC_CLOCKEVENTS
Russell Kingdc7ad3b2011-05-22 10:01:21 +0100838 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100839 select HAVE_IDE
Rob Herring01464222012-08-28 13:06:41 -0500840 select NEED_MACH_GPIO_H
Matt Porter3ad7a422013-03-06 11:15:31 -0500841 select TI_PRIV_EDMA
Sekhar Nori689e3312012-08-28 15:27:52 +0530842 select USE_OF
Russell Kingb1b3f492012-10-06 17:12:25 +0100843 select ZONE_DMA
Kevin Hilman7c6337e2007-04-30 19:37:19 +0100844 help
845 Support for TI's DaVinci platform.
846
Tony Lindgrena0694862013-01-11 11:24:20 -0800847config ARCH_OMAP1
848 bool "TI OMAP1"
Arnd Bergmann00a36692012-06-07 18:50:51 -0600849 depends on MMU
Ben Dooks89c52ed2009-07-30 23:23:24 +0100850 select ARCH_HAS_CPUFREQ
Russell Kingb1b3f492012-10-06 17:12:25 +0100851 select ARCH_HAS_HOLES_MEMORYMODEL
Tony Lindgrena0694862013-01-11 11:24:20 -0800852 select ARCH_OMAP
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100853 select ARCH_REQUIRE_GPIOLIB
Tony Priske9a91de2012-08-03 21:00:06 +1200854 select CLKDEV_LOOKUP
viresh kumarcee37e52010-04-01 12:31:05 +0100855 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +0100856 select GENERIC_CLOCKEVENTS
Tony Lindgrena0694862013-01-11 11:24:20 -0800857 select GENERIC_IRQ_CHIP
Russell Kingb1b3f492012-10-06 17:12:25 +0100858 select HAVE_CLK
Tony Lindgrena0694862013-01-11 11:24:20 -0800859 select HAVE_IDE
860 select IRQ_DOMAIN
861 select NEED_MACH_IO_H if PCCARD
862 select NEED_MACH_MEMORY_H
Alexey Charkov21f47fb2010-12-23 13:11:21 +0100863 help
Tony Lindgrena0694862013-01-11 11:24:20 -0800864 Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx)
Binghua Duan02c981c2011-07-08 17:40:12 +0800865
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866endchoice
867
Rob Herring387798b2012-09-06 13:41:12 -0500868menu "Multiple platform selection"
869 depends on ARCH_MULTIPLATFORM
870
871comment "CPU Core family selection"
872
Rob Herring387798b2012-09-06 13:41:12 -0500873config ARCH_MULTI_V4T
874 bool "ARMv4T based platforms (ARM720T, ARM920T, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500875 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100876 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200877 select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \
878 CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \
879 CPU_ARM925T || CPU_ARM940T)
Rob Herring387798b2012-09-06 13:41:12 -0500880
881config ARCH_MULTI_V5
882 bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)"
Rob Herring387798b2012-09-06 13:41:12 -0500883 depends on !ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100884 select ARCH_MULTI_V4_V5
Arnd Bergmann24e860f2013-06-03 15:38:58 +0200885 select CPU_ARM926T if (!CPU_ARM946E || CPU_ARM1020 || \
886 CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \
887 CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON)
Rob Herring387798b2012-09-06 13:41:12 -0500888
889config ARCH_MULTI_V4_V5
890 bool
891
892config ARCH_MULTI_V6
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800893 bool "ARMv6 based platforms (ARM11)"
Rob Herring387798b2012-09-06 13:41:12 -0500894 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100895 select CPU_V6
Rob Herring387798b2012-09-06 13:41:12 -0500896
897config ARCH_MULTI_V7
Stephen Boyd8dda05c2013-03-04 15:19:19 -0800898 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
Rob Herring387798b2012-09-06 13:41:12 -0500899 default y
900 select ARCH_MULTI_V6_V7
Russell Kingb1b3f492012-10-06 17:12:25 +0100901 select CPU_V7
Rob Herring387798b2012-09-06 13:41:12 -0500902
903config ARCH_MULTI_V6_V7
904 bool
905
906config ARCH_MULTI_CPU_AUTO
907 def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7)
908 select ARCH_MULTI_V5
909
910endmenu
911
Russell Kingccf50e22010-03-15 19:03:06 +0000912#
913# This is sorted alphabetically by mach-* pathname. However, plat-*
914# Kconfigs may be included either alphabetically (according to the
915# plat- suffix) or along side the corresponding mach-* source.
916#
Gregory CLEMENT3e93a222012-06-04 18:38:56 +0200917source "arch/arm/mach-mvebu/Kconfig"
918
Russell King95b8f202010-01-14 11:43:54 +0000919source "arch/arm/mach-at91/Kconfig"
920
Christian Daudt8ac49e02012-11-19 09:46:10 -0800921source "arch/arm/mach-bcm/Kconfig"
922
Stephen Warrenf1ac9222013-03-11 22:40:18 -0600923source "arch/arm/mach-bcm2835/Kconfig"
924
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925source "arch/arm/mach-clps711x/Kconfig"
926
Anton Vorontsovd94f9442010-03-25 17:12:41 +0300927source "arch/arm/mach-cns3xxx/Kconfig"
928
Russell King95b8f202010-01-14 11:43:54 +0000929source "arch/arm/mach-davinci/Kconfig"
930
931source "arch/arm/mach-dove/Kconfig"
932
Lennert Buytenheke7736d42006-03-20 17:10:13 +0000933source "arch/arm/mach-ep93xx/Kconfig"
934
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935source "arch/arm/mach-footbridge/Kconfig"
936
Paulius Zaleckas59d3a192009-03-26 10:06:08 +0200937source "arch/arm/mach-gemini/Kconfig"
938
Rob Herring387798b2012-09-06 13:41:12 -0500939source "arch/arm/mach-highbank/Kconfig"
940
Linus Torvalds1da177e2005-04-16 15:20:36 -0700941source "arch/arm/mach-integrator/Kconfig"
942
Lennert Buytenhek3f7e5812006-09-18 23:10:26 +0100943source "arch/arm/mach-iop32x/Kconfig"
944
945source "arch/arm/mach-iop33x/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
Dan Williams285f5fa2006-12-07 02:59:39 +0100947source "arch/arm/mach-iop13xx/Kconfig"
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949source "arch/arm/mach-ixp4xx/Kconfig"
950
Santosh Shilimkar828989a2013-06-10 11:27:13 -0400951source "arch/arm/mach-keystone/Kconfig"
952
Russell King95b8f202010-01-14 11:43:54 +0000953source "arch/arm/mach-kirkwood/Kconfig"
954
955source "arch/arm/mach-ks8695/Kconfig"
956
Russell King95b8f202010-01-14 11:43:54 +0000957source "arch/arm/mach-msm/Kconfig"
958
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200959source "arch/arm/mach-mv78xx0/Kconfig"
960
Shawn Guo3995eb82012-09-13 19:48:07 +0800961source "arch/arm/mach-imx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700962
Shawn Guo1d3f33d2010-12-13 20:55:03 +0800963source "arch/arm/mach-mxs/Kconfig"
964
Russell King95b8f202010-01-14 11:43:54 +0000965source "arch/arm/mach-netx/Kconfig"
Eric Miao49cbe782009-01-20 14:15:18 +0800966
Russell King95b8f202010-01-14 11:43:54 +0000967source "arch/arm/mach-nomadik/Kconfig"
Russell King95b8f202010-01-14 11:43:54 +0000968
Tony Lindgrend48af152005-07-10 19:58:17 +0100969source "arch/arm/plat-omap/Kconfig"
970
971source "arch/arm/mach-omap1/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972
Tony Lindgren1dbae812005-11-10 14:26:51 +0000973source "arch/arm/mach-omap2/Kconfig"
974
Lennert Buytenhek9dd0b192008-03-27 14:51:41 -0400975source "arch/arm/mach-orion5x/Kconfig"
Tzachi Perelstein585cf172007-10-23 15:14:41 -0400976
Rob Herring387798b2012-09-06 13:41:12 -0500977source "arch/arm/mach-picoxcell/Kconfig"
978
Russell King95b8f202010-01-14 11:43:54 +0000979source "arch/arm/mach-pxa/Kconfig"
980source "arch/arm/plat-pxa/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981
Russell King95b8f202010-01-14 11:43:54 +0000982source "arch/arm/mach-mmp/Kconfig"
983
984source "arch/arm/mach-realview/Kconfig"
985
Heiko Stuebnerd63dc052013-06-02 23:09:41 +0200986source "arch/arm/mach-rockchip/Kconfig"
987
Russell King95b8f202010-01-14 11:43:54 +0000988source "arch/arm/mach-sa1100/Kconfig"
Saeed Bisharaedabd382009-08-06 15:12:43 +0300989
Ben Dookscf383672009-11-10 00:14:58 +0000990source "arch/arm/plat-samsung/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100991
Rob Herring387798b2012-09-06 13:41:12 -0500992source "arch/arm/mach-socfpga/Kconfig"
993
Arnd Bergmanna7ed0992012-12-02 15:12:47 +0100994source "arch/arm/mach-spear/Kconfig"
Ben Dooksa21765a2007-02-11 18:31:01 +0100995
Kukjin Kim85fd6d62012-02-06 09:38:19 +0900996source "arch/arm/mach-s3c24xx/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
Ben Dooksa08ab632008-10-21 14:06:39 +0100998if ARCH_S3C64XX
Ben Dooks431107e2010-01-26 10:11:04 +0900999source "arch/arm/mach-s3c64xx/Kconfig"
Ben Dooksa08ab632008-10-21 14:06:39 +01001000endif
1001
Kukjin Kim49b7a492010-09-07 15:47:18 +09001002source "arch/arm/mach-s5p64x0/Kconfig"
Kukjin Kimc4ffccd2010-01-14 08:19:36 +09001003
Byungho Min5a7652f2009-06-23 21:39:42 +09001004source "arch/arm/mach-s5pc100/Kconfig"
Byungho Min5a7652f2009-06-23 21:39:42 +09001005
Kukjin Kim170f4e42010-02-24 16:40:44 +09001006source "arch/arm/mach-s5pv210/Kconfig"
1007
Kukjin Kim83014572011-11-06 13:54:56 +09001008source "arch/arm/mach-exynos/Kconfig"
Changhwan Youncc0e72b2010-07-16 12:15:38 +09001009
Russell King882d01f2010-03-02 23:40:15 +00001010source "arch/arm/mach-shmobile/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011
Maxime Ripard3b526342012-11-08 12:40:16 +01001012source "arch/arm/mach-sunxi/Kconfig"
1013
Barry Song156a0992012-08-23 13:41:58 +08001014source "arch/arm/mach-prima2/Kconfig"
1015
Erik Gillingc5f80062010-01-21 16:53:02 -08001016source "arch/arm/mach-tegra/Kconfig"
1017
Russell King95b8f202010-01-14 11:43:54 +00001018source "arch/arm/mach-u300/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001019
Russell King95b8f202010-01-14 11:43:54 +00001020source "arch/arm/mach-ux500/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001021
1022source "arch/arm/mach-versatile/Kconfig"
1023
Russell Kingceade892010-02-11 21:44:53 +00001024source "arch/arm/mach-vexpress/Kconfig"
Russell King420c34e2011-01-18 20:08:06 +00001025source "arch/arm/plat-versatile/Kconfig"
Russell Kingceade892010-02-11 21:44:53 +00001026
Marc Zyngier2a0ba732012-10-05 13:47:39 +01001027source "arch/arm/mach-virt/Kconfig"
1028
Tony Prisk6f35f9a2012-10-11 20:13:09 +13001029source "arch/arm/mach-vt8500/Kconfig"
1030
wanzongshun7ec80dd2008-12-03 03:55:38 +01001031source "arch/arm/mach-w90x900/Kconfig"
1032
Josh Cartwright9a45eb62012-11-19 11:38:29 -06001033source "arch/arm/mach-zynq/Kconfig"
1034
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035# Definitions to make life easier
1036config ARCH_ACORN
1037 bool
1038
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001039config PLAT_IOP
1040 bool
Mikael Pettersson469d30442009-10-29 11:46:54 -07001041 select GENERIC_CLOCKEVENTS
Lennert Buytenhek7ae1f7e2006-09-18 23:12:53 +01001042
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001043config PLAT_ORION
1044 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001045 select CLKSRC_MMIO
Russell Kingb1b3f492012-10-06 17:12:25 +01001046 select COMMON_CLK
Russell Kingdc7ad3b2011-05-22 10:01:21 +01001047 select GENERIC_IRQ_CHIP
Andrew Lunn278b45b2012-06-27 13:40:04 +02001048 select IRQ_DOMAIN
Lennert Buytenhek69b02f62008-03-27 14:51:39 -04001049
Thomas Petazzoniabcda1d2012-09-11 14:27:27 +02001050config PLAT_ORION_LEGACY
1051 bool
1052 select PLAT_ORION
1053
Eric Miaobd5ce432009-01-20 12:06:01 +08001054config PLAT_PXA
1055 bool
1056
Russell Kingf4b8b312010-01-14 12:48:06 +00001057config PLAT_VERSATILE
1058 bool
1059
Russell Kinge3887712010-01-14 13:30:16 +00001060config ARM_TIMER_SP804
1061 bool
Russell Kingbfe45e02011-05-08 15:33:30 +01001062 select CLKSRC_MMIO
Rob Herring7a0eca72013-03-25 11:23:52 -05001063 select CLKSRC_OF if OF
Russell Kinge3887712010-01-14 13:30:16 +00001064
Linus Torvalds1da177e2005-04-16 15:20:36 -07001065source arch/arm/mm/Kconfig
1066
Russell King958cab02011-12-11 10:04:00 +00001067config ARM_NR_BANKS
1068 int
1069 default 16 if ARCH_EP93XX
1070 default 8
1071
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001072config IWMMXT
Russell King698613b2013-04-03 16:33:26 +01001073 bool "Enable iWMMXt support" if !CPU_PJ4
Haojian Zhuangef6c8442010-11-24 11:54:25 +08001074 depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
Russell King698613b2013-04-03 16:33:26 +01001075 default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4
Lennert Buytenhekafe4b252006-12-03 18:51:14 +01001076 help
1077 Enable support for iWMMXt context switching at run time if
1078 running on a CPU that supports it.
1079
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080config XSCALE_PMU
1081 bool
Paul Bollebfc994b2011-10-30 12:51:41 +01001082 depends on CPU_XSCALE
Linus Torvalds1da177e2005-04-16 15:20:36 -07001083 default y
1084
eric miao52108642010-12-13 09:42:34 +01001085config MULTI_IRQ_HANDLER
1086 bool
1087 help
1088 Allow each machine to specify it's own IRQ handler at run time.
1089
Hyok S. Choi3b93e7b2006-06-22 11:48:56 +01001090if !MMU
1091source "arch/arm/Kconfig-nommu"
1092endif
1093
Will Deaconf0c4b8d2012-04-20 17:20:08 +01001094config ARM_ERRATA_326103
1095 bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory"
1096 depends on CPU_V6
1097 help
1098 Executing a SWP instruction to read-only memory does not set bit 11
1099 of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to
1100 treat the access as a read, preventing a COW from occurring and
1101 causing the faulting task to livelock.
1102
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001103config ARM_ERRATA_411920
1104 bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
Russell Kinge399b1a2011-01-17 15:08:32 +00001105 depends on CPU_V6 || CPU_V6K
Catalin Marinas9cba3cc2009-04-30 17:06:03 +01001106 help
1107 Invalidation of the Instruction Cache operation can
1108 fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1109 It does not affect the MPCore. This option enables the ARM Ltd.
1110 recommended workaround.
1111
Catalin Marinas7ce236f2009-04-30 17:06:09 +01001112config ARM_ERRATA_430973
1113 bool "ARM errata: Stale prediction on replaced interworking branch"
1114 depends on CPU_V7
1115 help
1116 This option enables the workaround for the 430973 Cortex-A8
1117 (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1118 interworking branch is replaced with another code sequence at the
1119 same virtual address, whether due to self-modifying code or virtual
1120 to physical address re-mapping, Cortex-A8 does not recover from the
1121 stale interworking branch prediction. This results in Cortex-A8
1122 executing the new code sequence in the incorrect ARM or Thumb state.
1123 The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1124 and also flushes the branch target cache at every context switch.
1125 Note that setting specific bits in the ACTLR register may not be
1126 available in non-secure mode.
1127
Catalin Marinas855c5512009-04-30 17:06:15 +01001128config ARM_ERRATA_458693
1129 bool "ARM errata: Processor deadlock when a false hazard is created"
1130 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001131 depends on !ARCH_MULTIPLATFORM
Catalin Marinas855c5512009-04-30 17:06:15 +01001132 help
1133 This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1134 erratum. For very specific sequences of memory operations, it is
1135 possible for a hazard condition intended for a cache line to instead
1136 be incorrectly associated with a different cache line. This false
1137 hazard might then cause a processor deadlock. The workaround enables
1138 the L1 caching of the NEON accesses and disables the PLD instruction
1139 in the ACTLR register. Note that setting specific bits in the ACTLR
1140 register may not be available in non-secure mode.
1141
Catalin Marinas0516e462009-04-30 17:06:20 +01001142config ARM_ERRATA_460075
1143 bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1144 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001145 depends on !ARCH_MULTIPLATFORM
Catalin Marinas0516e462009-04-30 17:06:20 +01001146 help
1147 This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1148 erratum. Any asynchronous access to the L2 cache may encounter a
1149 situation in which recent store transactions to the L2 cache are lost
1150 and overwritten with stale memory contents from external memory. The
1151 workaround disables the write-allocate mode for the L2 cache via the
1152 ACTLR register. Note that setting specific bits in the ACTLR register
1153 may not be available in non-secure mode.
1154
Will Deacon9f050272010-09-14 09:51:43 +01001155config ARM_ERRATA_742230
1156 bool "ARM errata: DMB operation may be faulty"
1157 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001158 depends on !ARCH_MULTIPLATFORM
Will Deacon9f050272010-09-14 09:51:43 +01001159 help
1160 This option enables the workaround for the 742230 Cortex-A9
1161 (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1162 between two write operations may not ensure the correct visibility
1163 ordering of the two writes. This workaround sets a specific bit in
1164 the diagnostic register of the Cortex-A9 which causes the DMB
1165 instruction to behave as a DSB, ensuring the correct behaviour of
1166 the two writes.
1167
Will Deacona672e992010-09-14 09:53:02 +01001168config ARM_ERRATA_742231
1169 bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1170 depends on CPU_V7 && SMP
Rob Herring62e4d352012-12-21 22:42:40 +01001171 depends on !ARCH_MULTIPLATFORM
Will Deacona672e992010-09-14 09:53:02 +01001172 help
1173 This option enables the workaround for the 742231 Cortex-A9
1174 (r2p0..r2p2) erratum. Under certain conditions, specific to the
1175 Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1176 accessing some data located in the same cache line, may get corrupted
1177 data due to bad handling of the address hazard when the line gets
1178 replaced from one of the CPUs at the same time as another CPU is
1179 accessing it. This workaround sets specific bits in the diagnostic
1180 register of the Cortex-A9 which reduces the linefill issuing
1181 capabilities of the processor.
1182
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001183config PL310_ERRATA_588369
Will Deaconfa0ce402011-11-14 17:24:57 +01001184 bool "PL310 errata: Clean & Invalidate maintenance operations do not invalidate clean lines"
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001185 depends on CACHE_L2X0
Santosh Shilimkar9e655822010-02-04 19:42:42 +01001186 help
1187 The PL310 L2 cache controller implements three types of Clean &
1188 Invalidate maintenance operations: by Physical Address
1189 (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1190 They are architecturally defined to behave as the execution of a
1191 clean operation followed immediately by an invalidate operation,
1192 both performing to the same memory location. This functionality
1193 is not correctly implemented in PL310 as clean lines are not
Santosh Shilimkar2839e062011-03-08 06:59:54 +01001194 invalidated as a result of these operations.
Will Deaconcdf357f2010-08-05 11:20:51 +01001195
1196config ARM_ERRATA_720789
1197 bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
Dave Martine66dc742011-12-08 13:37:46 +01001198 depends on CPU_V7
Will Deaconcdf357f2010-08-05 11:20:51 +01001199 help
1200 This option enables the workaround for the 720789 Cortex-A9 (prior to
1201 r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1202 broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1203 As a consequence of this erratum, some TLB entries which should be
1204 invalidated are not, resulting in an incoherency in the system page
1205 tables. The workaround changes the TLB flushing routines to invalidate
1206 entries regardless of the ASID.
Will Deacon475d92f2010-09-28 14:02:02 +01001207
Russell King1f0090a2011-03-16 23:35:25 +00001208config PL310_ERRATA_727915
Will Deaconfa0ce402011-11-14 17:24:57 +01001209 bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
Russell King1f0090a2011-03-16 23:35:25 +00001210 depends on CACHE_L2X0
1211 help
1212 PL310 implements the Clean & Invalidate by Way L2 cache maintenance
1213 operation (offset 0x7FC). This operation runs in background so that
1214 PL310 can handle normal accesses while it is in progress. Under very
1215 rare circumstances, due to this erratum, write data can be lost when
1216 PL310 treats a cacheable write transaction during a Clean &
1217 Invalidate by Way operation.
1218
Will Deacon475d92f2010-09-28 14:02:02 +01001219config ARM_ERRATA_743622
1220 bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1221 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001222 depends on !ARCH_MULTIPLATFORM
Will Deacon475d92f2010-09-28 14:02:02 +01001223 help
1224 This option enables the workaround for the 743622 Cortex-A9
Will Deaconefbc74a2012-02-24 12:12:38 +01001225 (r2p*) erratum. Under very rare conditions, a faulty
Will Deacon475d92f2010-09-28 14:02:02 +01001226 optimisation in the Cortex-A9 Store Buffer may lead to data
1227 corruption. This workaround sets a specific bit in the diagnostic
1228 register of the Cortex-A9 which disables the Store Buffer
1229 optimisation, preventing the defect from occurring. This has no
1230 visible impact on the overall performance or power consumption of the
1231 processor.
1232
Will Deacon9a27c272011-02-18 16:36:35 +01001233config ARM_ERRATA_751472
1234 bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation"
Dave Martinba90c512011-12-08 13:41:06 +01001235 depends on CPU_V7
Rob Herring62e4d352012-12-21 22:42:40 +01001236 depends on !ARCH_MULTIPLATFORM
Will Deacon9a27c272011-02-18 16:36:35 +01001237 help
1238 This option enables the workaround for the 751472 Cortex-A9 (prior
1239 to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the
1240 completion of a following broadcasted operation if the second
1241 operation is received by a CPU before the ICIALLUIS has completed,
1242 potentially leading to corrupted entries in the cache or TLB.
1243
Will Deaconfa0ce402011-11-14 17:24:57 +01001244config PL310_ERRATA_753970
1245 bool "PL310 errata: cache sync operation may be faulty"
Srinidhi Kasagar885028e2011-02-17 07:03:51 +01001246 depends on CACHE_PL310
1247 help
1248 This option enables the workaround for the 753970 PL310 (r3p0) erratum.
1249
1250 Under some condition the effect of cache sync operation on
1251 the store buffer still remains when the operation completes.
1252 This means that the store buffer is always asked to drain and
1253 this prevents it from merging any further writes. The workaround
1254 is to replace the normal offset of cache sync operation (0x730)
1255 by another offset targeting an unmapped PL310 register 0x740.
1256 This has the same effect as the cache sync operation: store buffer
1257 drain and waiting for all buffers empty.
1258
Will Deaconfcbdc5fe2011-02-28 18:15:16 +01001259config ARM_ERRATA_754322
1260 bool "ARM errata: possible faulty MMU translations following an ASID switch"
1261 depends on CPU_V7
1262 help
1263 This option enables the workaround for the 754322 Cortex-A9 (r2p*,
1264 r3p*) erratum. A speculative memory access may cause a page table walk
1265 which starts prior to an ASID switch but completes afterwards. This
1266 can populate the micro-TLB with a stale entry which may be hit with
1267 the new ASID. This workaround places two dsb instructions in the mm
1268 switching code so that no page table walks can cross the ASID switch.
1269
Will Deacon5dab26af2011-03-04 12:38:54 +01001270config ARM_ERRATA_754327
1271 bool "ARM errata: no automatic Store Buffer drain"
1272 depends on CPU_V7 && SMP
1273 help
1274 This option enables the workaround for the 754327 Cortex-A9 (prior to
1275 r2p0) erratum. The Store Buffer does not have any automatic draining
1276 mechanism and therefore a livelock may occur if an external agent
1277 continuously polls a memory location waiting to observe an update.
1278 This workaround defines cpu_relax() as smp_mb(), preventing correctly
1279 written polling loops from denying visibility of updates to memory.
1280
Catalin Marinas145e10e2011-08-15 11:04:41 +01001281config ARM_ERRATA_364296
1282 bool "ARM errata: Possible cache data corruption with hit-under-miss enabled"
1283 depends on CPU_V6 && !SMP
1284 help
1285 This options enables the workaround for the 364296 ARM1136
1286 r0p2 erratum (possible cache data corruption with
1287 hit-under-miss enabled). It sets the undocumented bit 31 in
1288 the auxiliary control register and the FI bit in the control
1289 register, thus disabling hit-under-miss without putting the
1290 processor into full low interrupt latency mode. ARM11MPCore
1291 is not affected.
1292
Will Deaconf630c1b2011-09-15 11:45:15 +01001293config ARM_ERRATA_764369
1294 bool "ARM errata: Data cache line maintenance operation by MVA may not succeed"
1295 depends on CPU_V7 && SMP
1296 help
1297 This option enables the workaround for erratum 764369
1298 affecting Cortex-A9 MPCore with two or more processors (all
1299 current revisions). Under certain timing circumstances, a data
1300 cache line maintenance operation by MVA targeting an Inner
1301 Shareable memory region may fail to proceed up to either the
1302 Point of Coherency or to the Point of Unification of the
1303 system. This workaround adds a DSB instruction before the
1304 relevant cache maintenance functions and sets a specific bit
1305 in the diagnostic control register of the SCU.
1306
Will Deacon11ed0ba2011-11-14 17:24:58 +01001307config PL310_ERRATA_769419
1308 bool "PL310 errata: no automatic Store Buffer drain"
1309 depends on CACHE_L2X0
1310 help
1311 On revisions of the PL310 prior to r3p2, the Store Buffer does
1312 not automatically drain. This can cause normal, non-cacheable
1313 writes to be retained when the memory system is idle, leading
1314 to suboptimal I/O performance for drivers using coherent DMA.
1315 This option adds a write barrier to the cpu_idle loop so that,
1316 on systems with an outer cache, the store buffer is drained
1317 explicitly.
1318
Simon Horman7253b852012-09-28 02:12:45 +01001319config ARM_ERRATA_775420
1320 bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock"
1321 depends on CPU_V7
1322 help
1323 This option enables the workaround for the 775420 Cortex-A9 (r2p2,
1324 r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance
1325 operation aborts with MMU exception, it might cause the processor
1326 to deadlock. This workaround puts DSB before executing ISB if
1327 an abort may occur on cache maintenance.
1328
Catalin Marinas93dc6882013-03-26 23:35:04 +01001329config ARM_ERRATA_798181
1330 bool "ARM errata: TLBI/DSB failure on Cortex-A15"
1331 depends on CPU_V7 && SMP
1332 help
1333 On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not
1334 adequately shooting down all use of the old entries. This
1335 option enables the Linux kernel workaround for this erratum
1336 which sends an IPI to the CPUs that are running the same ASID
1337 as the one being invalidated.
1338
Linus Torvalds1da177e2005-04-16 15:20:36 -07001339endmenu
1340
1341source "arch/arm/common/Kconfig"
1342
Linus Torvalds1da177e2005-04-16 15:20:36 -07001343menu "Bus support"
1344
1345config ARM_AMBA
1346 bool
1347
1348config ISA
1349 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350 help
1351 Find out whether you have ISA slots on your motherboard. ISA is the
1352 name of a bus system, i.e. the way the CPU talks to the other stuff
1353 inside your box. Other bus systems are PCI, EISA, MicroChannel
1354 (MCA) or VESA. ISA is an older system, now being displaced by PCI;
1355 newer boards don't support it. If you have ISA, say Y, otherwise N.
1356
Russell King065909b2006-01-04 15:44:16 +00001357# Select ISA DMA controller support
Linus Torvalds1da177e2005-04-16 15:20:36 -07001358config ISA_DMA
1359 bool
Russell King065909b2006-01-04 15:44:16 +00001360 select ISA_DMA_API
Linus Torvalds1da177e2005-04-16 15:20:36 -07001361
Russell King065909b2006-01-04 15:44:16 +00001362# Select ISA DMA interface
Al Viro5cae8412005-05-04 05:39:22 +01001363config ISA_DMA_API
1364 bool
Al Viro5cae8412005-05-04 05:39:22 +01001365
Linus Torvalds1da177e2005-04-16 15:20:36 -07001366config PCI
Hans Ulli Kroll0b05da72010-12-02 12:32:15 +01001367 bool "PCI support" if MIGHT_HAVE_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -07001368 help
1369 Find out whether you have a PCI motherboard. PCI is the name of a
1370 bus system, i.e. the way the CPU talks to the other stuff inside
1371 your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1372 VESA. If you have PCI, say Y, otherwise N.
1373
Anton Vorontsov52882172010-04-19 13:20:49 +01001374config PCI_DOMAINS
1375 bool
1376 depends on PCI
1377
Marcelo Roberto Jimenezb080ac82010-12-16 21:34:51 +01001378config PCI_NANOENGINE
1379 bool "BSE nanoEngine PCI support"
1380 depends on SA1100_NANOENGINE
1381 help
1382 Enable PCI on the BSE nanoEngine board.
1383
Matthew Wilcox36e23592007-07-10 10:54:40 -06001384config PCI_SYSCALL
1385 def_bool PCI
1386
Linus Torvalds1da177e2005-04-16 15:20:36 -07001387# Select the host bridge type
1388config PCI_HOST_VIA82C505
1389 bool
1390 depends on PCI && ARCH_SHARK
1391 default y
1392
Mike Rapoporta0113a92007-11-25 08:55:34 +01001393config PCI_HOST_ITE8152
1394 bool
1395 depends on PCI && MACH_ARMCORE
1396 default y
1397 select DMABOUNCE
1398
Linus Torvalds1da177e2005-04-16 15:20:36 -07001399source "drivers/pci/Kconfig"
Jingoo Han3f06d152013-06-21 16:25:29 +09001400source "drivers/pci/pcie/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07001401
1402source "drivers/pcmcia/Kconfig"
1403
1404endmenu
1405
1406menu "Kernel Features"
1407
Dave Martin3b556582011-12-07 15:38:04 +00001408config HAVE_SMP
1409 bool
1410 help
1411 This option should be selected by machines which have an SMP-
1412 capable CPU.
1413
1414 The only effect of this option is to make the SMP-related
1415 options available to the user for configuration.
1416
Linus Torvalds1da177e2005-04-16 15:20:36 -07001417config SMP
Russell Kingbb2d8132011-05-12 09:52:02 +01001418 bool "Symmetric Multi-Processing"
Russell Kingfbb4dda2011-01-17 18:01:58 +00001419 depends on CPU_V6K || CPU_V7
Russell Kingbc282482009-05-17 18:58:34 +01001420 depends on GENERIC_CLOCKEVENTS
Dave Martin3b556582011-12-07 15:38:04 +00001421 depends on HAVE_SMP
Arnd Bergmann9934ebb2011-06-10 14:05:22 +00001422 depends on MMU
Russell Kingb1b3f492012-10-06 17:12:25 +01001423 select USE_GENERIC_SMP_HELPERS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001424 help
1425 This enables support for systems with more than one CPU. If you have
1426 a system with only one CPU, like most personal computers, say N. If
1427 you have a system with more than one CPU, say Y.
1428
1429 If you say N here, the kernel will run on single and multiprocessor
1430 machines, but will use only one CPU of a multiprocessor machine. If
1431 you say Y here, the kernel will run on many, but not all, single
1432 processor machines. On a single processor machine, the kernel will
1433 run faster if you say N here.
1434
Paul Bolle395cf962011-08-15 02:02:26 +02001435 See also <file:Documentation/x86/i386/IO-APIC.txt>,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001436 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
Justin P. Mattock50a23e62010-10-16 10:36:23 -07001437 <http://tldp.org/HOWTO/SMP-HOWTO.html>.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001438
1439 If you don't know what to do here, say N.
1440
Russell Kingf00ec482010-09-04 10:47:48 +01001441config SMP_ON_UP
1442 bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
Nicolas Pitre4d2692a2011-01-14 07:33:24 +01001443 depends on SMP && !XIP_KERNEL
Russell Kingf00ec482010-09-04 10:47:48 +01001444 default y
1445 help
1446 SMP kernels contain instructions which fail on non-SMP processors.
1447 Enabling this option allows the kernel to modify itself to make
1448 these instructions safe. Disabling it allows about 1K of space
1449 savings.
1450
1451 If you don't know what to do here, say Y.
1452
Vincent Guittotc9018aa2011-08-08 13:21:59 +01001453config ARM_CPU_TOPOLOGY
1454 bool "Support cpu topology definition"
1455 depends on SMP && CPU_V7
1456 default y
1457 help
1458 Support ARM cpu topology definition. The MPIDR register defines
1459 affinity between processors which is then used to describe the cpu
1460 topology of an ARM System.
1461
1462config SCHED_MC
1463 bool "Multi-core scheduler support"
1464 depends on ARM_CPU_TOPOLOGY
1465 help
1466 Multi-core scheduler support improves the CPU scheduler's decision
1467 making when dealing with multi-core CPU chips at a cost of slightly
1468 increased overhead in some places. If unsure say N here.
1469
1470config SCHED_SMT
1471 bool "SMT scheduler support"
1472 depends on ARM_CPU_TOPOLOGY
1473 help
1474 Improves the CPU scheduler's decision making when dealing with
1475 MultiThreading at a cost of slightly increased overhead in some
1476 places. If unsure say N here.
1477
Russell Kinga8cbcd92009-05-16 11:51:14 +01001478config HAVE_ARM_SCU
1479 bool
Russell Kinga8cbcd92009-05-16 11:51:14 +01001480 help
1481 This option enables support for the ARM system coherency unit
1482
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001483config HAVE_ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001484 bool "Architected timer support"
1485 depends on CPU_V7
Mark Rutland8a4da6e2012-11-12 14:33:44 +00001486 select ARM_ARCH_TIMER
Marc Zyngier022c03a2012-01-11 17:25:17 +00001487 help
1488 This option enables support for the ARM architected timer
1489
Russell Kingf32f4ce2009-05-16 12:14:21 +01001490config HAVE_ARM_TWD
1491 bool
1492 depends on SMP
Rob Herringda4a6862013-02-06 21:17:47 -06001493 select CLKSRC_OF if OF
Russell Kingf32f4ce2009-05-16 12:14:21 +01001494 help
1495 This options enables support for the ARM timer and watchdog unit
1496
Nicolas Pitree8db2882012-04-12 02:45:22 -04001497config MCPM
1498 bool "Multi-Cluster Power Management"
1499 depends on CPU_V7 && SMP
1500 help
1501 This option provides the common power management infrastructure
1502 for (multi-)cluster based systems, such as big.LITTLE based
1503 systems.
1504
Lennert Buytenhek8d5796d2008-08-25 21:03:32 +01001505choice
1506 prompt "Memory split"
1507 default VMSPLIT_3G
1508 help
1509 Select the desired split between kernel and user memory.
1510
1511 If you are not absolutely sure what you are doing, leave this
1512 option alone!
1513
1514 config VMSPLIT_3G
1515 bool "3G/1G user/kernel split"
1516 config VMSPLIT_2G
1517 bool "2G/2G user/kernel split"
1518 config VMSPLIT_1G
1519 bool "1G/3G user/kernel split"
1520endchoice
1521
1522config PAGE_OFFSET
1523 hex
1524 default 0x40000000 if VMSPLIT_1G
1525 default 0x80000000 if VMSPLIT_2G
1526 default 0xC0000000
1527
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528config NR_CPUS
1529 int "Maximum number of CPUs (2-32)"
1530 range 2 32
1531 depends on SMP
1532 default "4"
1533
Russell Kinga054a812005-11-02 22:24:33 +00001534config HOTPLUG_CPU
Russell King00b7ded2012-10-22 22:54:30 +01001535 bool "Support for hot-pluggable CPUs"
1536 depends on SMP && HOTPLUG
Russell Kinga054a812005-11-02 22:24:33 +00001537 help
1538 Say Y here to experiment with turning CPUs off and on. CPUs
1539 can be controlled through /sys/devices/system/cpu.
1540
Will Deacon2bdd4242012-12-12 19:20:52 +00001541config ARM_PSCI
1542 bool "Support for the ARM Power State Coordination Interface (PSCI)"
1543 depends on CPU_V7
1544 help
1545 Say Y here if you want Linux to communicate with system firmware
1546 implementing the PSCI specification for CPU-centric power
1547 management operations described in ARM document number ARM DEN
1548 0022A ("Power State Coordination Interface System Software on
1549 ARM processors").
1550
Russell King37ee16a2005-11-08 19:08:05 +00001551config LOCAL_TIMERS
1552 bool "Use local timer interrupts"
Russell King971acb92010-09-04 08:16:30 +01001553 depends on SMP
Russell King37ee16a2005-11-08 19:08:05 +00001554 default y
1555 help
1556 Enable support for local timers on SMP platforms, rather then the
1557 legacy IPI broadcast method. Local timers allows the system
1558 accounting to be spread across the timer interval, preventing a
1559 "thundering herd" at every timer tick.
1560
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001561# The GPIO number here must be sorted by descending number. In case of
1562# a multiplatform kernel, we just want the highest value required by the
1563# selected platforms.
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001564config ARCH_NR_GPIO
1565 int
Peter De Schrijver (NVIDIA)3dea19e2011-12-21 15:14:52 +01001566 default 1024 if ARCH_SHMOBILE || ARCH_TEGRA
Tarun Kanti DebBarma39f47d92012-04-26 18:31:17 +05301567 default 512 if SOC_OMAP5
Santosh Shilimkar828989a2013-06-10 11:27:13 -04001568 default 512 if ARCH_KEYSTONE
Olof Johansson06b851e2013-04-02 18:33:58 -07001569 default 392 if ARCH_U8500
Tony Prisk01bb9142013-03-09 18:22:30 +13001570 default 352 if ARCH_VT8500
1571 default 288 if ARCH_SUNXI
Maxime Ripard2a6ad872013-02-03 12:24:48 +01001572 default 264 if MACH_H4700
Peter De Schrijver (NVIDIA)44986ab2011-12-21 10:48:45 +01001573 default 0
1574 help
1575 Maximum number of GPIOs in the system.
1576
1577 If unsure, leave the default value.
1578
Uwe Kleine-Königd45a3982009-08-13 20:38:17 +02001579source kernel/Kconfig.preempt
Linus Torvalds1da177e2005-04-16 15:20:36 -07001580
Russell Kingf8065812006-03-02 22:41:59 +00001581config HZ
1582 int
Kukjin Kimb130d5c2012-02-03 14:29:23 +09001583 default 200 if ARCH_EBSA110 || ARCH_S3C24XX || ARCH_S5P64X0 || \
Kukjin Kima73ddc62011-05-11 16:27:51 +09001584 ARCH_S5PV210 || ARCH_EXYNOS4
David Brownell5248c652007-11-12 17:59:10 +01001585 default AT91_TIMER_HZ if ARCH_AT91
Magnus Damm5da3e712010-07-29 14:03:04 +01001586 default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
Russell Kingf8065812006-03-02 22:41:59 +00001587 default 100
1588
Russell Kingb28748f2013-02-17 14:40:33 +00001589config SCHED_HRTICK
1590 def_bool HIGH_RES_TIMERS
1591
Catalin Marinas16c79652009-07-24 12:33:02 +01001592config THUMB2_KERNEL
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001593 bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
Uwe Kleine-König4477ca42013-03-21 21:02:37 +01001594 depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K
Uwe Kleine-Königbc7dea02011-12-09 20:52:10 +01001595 default y if CPU_THUMBONLY
Catalin Marinas16c79652009-07-24 12:33:02 +01001596 select AEABI
1597 select ARM_ASM_UNIFIED
Arnd Bergmann89bace62011-06-10 14:12:21 +00001598 select ARM_UNWIND
Catalin Marinas16c79652009-07-24 12:33:02 +01001599 help
1600 By enabling this option, the kernel will be compiled in
1601 Thumb-2 mode. A compiler/assembler that understand the unified
1602 ARM-Thumb syntax is needed.
1603
1604 If unsure, say N.
1605
Dave Martin6f685c52011-03-03 11:41:12 +01001606config THUMB2_AVOID_R_ARM_THM_JUMP11
1607 bool "Work around buggy Thumb-2 short branch relocations in gas"
1608 depends on THUMB2_KERNEL && MODULES
1609 default y
1610 help
1611 Various binutils versions can resolve Thumb-2 branches to
1612 locally-defined, preemptible global symbols as short-range "b.n"
1613 branch instructions.
1614
1615 This is a problem, because there's no guarantee the final
1616 destination of the symbol, or any candidate locations for a
1617 trampoline, are within range of the branch. For this reason, the
1618 kernel does not support fixing up the R_ARM_THM_JUMP11 (102)
1619 relocation in modules at all, and it makes little sense to add
1620 support.
1621
1622 The symptom is that the kernel fails with an "unsupported
1623 relocation" error when loading some modules.
1624
1625 Until fixed tools are available, passing
1626 -fno-optimize-sibling-calls to gcc should prevent gcc generating
1627 code which hits this problem, at the cost of a bit of extra runtime
1628 stack usage in some cases.
1629
1630 The problem is described in more detail at:
1631 https://bugs.launchpad.net/binutils-linaro/+bug/725126
1632
1633 Only Thumb-2 kernels are affected.
1634
1635 Unless you are sure your tools don't have this problem, say Y.
1636
Catalin Marinas0becb082009-07-24 12:32:53 +01001637config ARM_ASM_UNIFIED
1638 bool
1639
Nicolas Pitre704bdda02006-01-14 16:33:50 +00001640config AEABI
1641 bool "Use the ARM EABI to compile the kernel"
1642 help
1643 This option allows for the kernel to be compiled using the latest
1644 ARM ABI (aka EABI). This is only useful if you are using a user
1645 space environment that is also compiled with EABI.
1646
1647 Since there are major incompatibilities between the legacy ABI and
1648 EABI, especially with regard to structure member alignment, this
1649 option also changes the kernel syscall calling convention to
1650 disambiguate both ABIs and allow for backward compatibility support
1651 (selected with CONFIG_OABI_COMPAT).
1652
1653 To use this you need GCC version 4.0.0 or later.
1654
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001655config OABI_COMPAT
Russell Kinga73a3ff2006-02-08 21:09:55 +00001656 bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001657 depends on AEABI && !THUMB2_KERNEL
Nicolas Pitre6c90c872006-01-14 16:37:15 +00001658 default y
1659 help
1660 This option preserves the old syscall interface along with the
1661 new (ARM EABI) one. It also provides a compatibility layer to
1662 intercept syscalls that have structure arguments which layout
1663 in memory differs between the legacy ABI and the new ARM EABI
1664 (only for non "thumb" binaries). This option adds a tiny
1665 overhead to all syscalls and produces a slightly larger kernel.
1666 If you know you'll be using only pure EABI user space then you
1667 can say N here. If this option is not selected and you attempt
1668 to execute a legacy ABI binary then the result will be
1669 UNPREDICTABLE (in fact it can be predicted that it won't work
1670 at all). If in doubt say Y.
1671
Mel Gormaneb335752009-05-13 17:34:48 +01001672config ARCH_HAS_HOLES_MEMORYMODEL
Mel Gormane80d6a22008-08-14 11:10:14 +01001673 bool
Mel Gormane80d6a22008-08-14 11:10:14 +01001674
Russell King05944d72006-11-30 20:43:51 +00001675config ARCH_SPARSEMEM_ENABLE
1676 bool
1677
Russell King07a2f732008-10-01 21:39:58 +01001678config ARCH_SPARSEMEM_DEFAULT
1679 def_bool ARCH_SPARSEMEM_ENABLE
1680
Russell King05944d72006-11-30 20:43:51 +00001681config ARCH_SELECT_MEMORY_MODEL
Russell Kingbe370302010-05-07 17:40:33 +01001682 def_bool ARCH_SPARSEMEM_ENABLE
Yasunori Gotoc80d79d2006-04-10 22:53:53 -07001683
Will Deacon7b7bf492011-05-19 13:21:14 +01001684config HAVE_ARCH_PFN_VALID
1685 def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
1686
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001687config HIGHMEM
Russell Kinge8db89a2011-05-12 09:53:05 +01001688 bool "High Memory Support"
1689 depends on MMU
Nicolas Pitre053a96c2008-09-19 00:36:12 -04001690 help
1691 The address space of ARM processors is only 4 Gigabytes large
1692 and it has to accommodate user address space, kernel address
1693 space as well as some memory mapped IO. That means that, if you
1694 have a large amount of physical memory and/or IO, not all of the
1695 memory can be "permanently mapped" by the kernel. The physical
1696 memory that is not permanently mapped is called "high memory".
1697
1698 Depending on the selected kernel/user memory split, minimum
1699 vmalloc space and actual amount of RAM, you may not need this
1700 option which should result in a slightly faster kernel.
1701
1702 If unsure, say n.
1703
Russell King65cec8e2009-08-17 20:02:06 +01001704config HIGHPTE
1705 bool "Allocate 2nd-level pagetables from highmem"
1706 depends on HIGHMEM
Russell King65cec8e2009-08-17 20:02:06 +01001707
Jamie Iles1b8873a2010-02-02 20:25:44 +01001708config HW_PERF_EVENTS
1709 bool "Enable hardware performance counter support for perf events"
Will Deaconf0d1bc42012-07-28 16:27:03 +01001710 depends on PERF_EVENTS
Jamie Iles1b8873a2010-02-02 20:25:44 +01001711 default y
1712 help
1713 Enable hardware performance counter support for perf events. If
1714 disabled, perf events will use software events only.
1715
Dave Hansen3f22ab22005-06-23 00:07:43 -07001716source "mm/Kconfig"
1717
Magnus Dammc1b2d972010-07-05 10:00:11 +01001718config FORCE_MAX_ZONEORDER
1719 int "Maximum zone order" if ARCH_SHMOBILE
1720 range 11 64 if ARCH_SHMOBILE
Yegor Yefremov898f08e2012-10-08 14:37:53 -07001721 default "12" if SOC_AM33XX
Magnus Dammc1b2d972010-07-05 10:00:11 +01001722 default "9" if SA1111
1723 default "11"
1724 help
1725 The kernel memory allocator divides physically contiguous memory
1726 blocks into "zones", where each zone is a power of two number of
1727 pages. This option selects the largest power of two that the kernel
1728 keeps in the memory allocator. If you need to allocate very large
1729 blocks of physically contiguous memory, then you may need to
1730 increase this value.
1731
1732 This config option is actually maximum order plus one. For example,
1733 a value of 11 means that the largest free memory block is 2^10 pages.
1734
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735config ALIGNMENT_TRAP
1736 bool
Hyok S. Choif12d0d72006-09-26 17:36:37 +09001737 depends on CPU_CP15_MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 default y if !ARCH_EBSA110
Russell Kinge119bff2010-01-10 17:23:29 +00001739 select HAVE_PROC_CPU if PROC_FS
Linus Torvalds1da177e2005-04-16 15:20:36 -07001740 help
Matt LaPlante84eb8d02006-10-03 22:53:09 +02001741 ARM processors cannot fetch/store information which is not
Linus Torvalds1da177e2005-04-16 15:20:36 -07001742 naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1743 address divisible by 4. On 32-bit ARM processors, these non-aligned
1744 fetch/store instructions will be emulated in software if you say
1745 here, which has a severe performance impact. This is necessary for
1746 correct operation of some network protocols. With an IP-only
1747 configuration it is safe to say N, otherwise say Y.
1748
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001749config UACCESS_WITH_MEMCPY
Linus Walleij38ef2ad2012-09-10 16:36:37 +01001750 bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()"
1751 depends on MMU
Lennert Buytenhek39ec58f2009-03-09 14:30:09 -04001752 default y if CPU_FEROCEON
1753 help
1754 Implement faster copy_to_user and clear_user methods for CPU
1755 cores where a 8-word STM instruction give significantly higher
1756 memory write throughput than a sequence of individual 32bit stores.
1757
1758 A possible side effect is a slight increase in scheduling latency
1759 between threads sharing the same address space if they invoke
1760 such copy operations with large buffers.
1761
1762 However, if the CPU data cache is using a write-allocate mode,
1763 this option is unlikely to provide any performance gain.
1764
Nicolas Pitre70c70d92010-08-26 15:08:35 -07001765config SECCOMP
1766 bool
1767 prompt "Enable seccomp to safely compute untrusted bytecode"
1768 ---help---
1769 This kernel feature is useful for number crunching applications
1770 that may need to compute untrusted bytecode during their
1771 execution. By using pipes or other transports made available to
1772 the process as file descriptors supporting the read/write
1773 syscalls, it's possible to isolate those applications in
1774 their own address space using seccomp. Once seccomp is
1775 enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1776 and the task is only allowed to execute a few safe syscalls
1777 defined by each seccomp mode.
1778
Nicolas Pitrec743f382010-05-24 23:55:42 -04001779config CC_STACKPROTECTOR
1780 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1781 help
1782 This option turns on the -fstack-protector GCC feature. This
1783 feature puts, at the beginning of functions, a canary value on
1784 the stack just before the return address, and validates
1785 the value just before actually returning. Stack based buffer
1786 overflows (that need to overwrite this return address) now also
1787 overwrite the canary, which gets detected and the attack is then
1788 neutralized via a kernel panic.
1789 This feature requires gcc version 4.2 or above.
1790
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001791config XEN_DOM0
1792 def_bool y
1793 depends on XEN
1794
1795config XEN
1796 bool "Xen guest support on ARM (EXPERIMENTAL)"
Ian Campbell85323a92013-03-07 07:17:25 +00001797 depends on ARM && AEABI && OF
Arnd Bergmannf880b672012-10-09 10:33:52 +00001798 depends on CPU_V7 && !CPU_V6
Ian Campbell85323a92013-03-07 07:17:25 +00001799 depends on !GENERIC_ATOMIC64
Stefano Stabellini17b7ab82013-04-24 18:47:18 +00001800 select ARM_PSCI
Stefano Stabellinieff8d642012-09-17 14:58:17 +00001801 help
1802 Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
1803
Linus Torvalds1da177e2005-04-16 15:20:36 -07001804endmenu
1805
1806menu "Boot options"
1807
Grant Likely9eb8f672011-04-28 14:27:20 -06001808config USE_OF
1809 bool "Flattened Device Tree support"
Russell Kingb1b3f492012-10-06 17:12:25 +01001810 select IRQ_DOMAIN
Grant Likely9eb8f672011-04-28 14:27:20 -06001811 select OF
1812 select OF_EARLY_FLATTREE
1813 help
1814 Include support for flattened device tree machine descriptions.
1815
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001816config ATAGS
1817 bool "Support for the traditional ATAGS boot data passing" if USE_OF
1818 default y
1819 help
1820 This is the traditional way of passing data to the kernel at boot
1821 time. If you are solely relying on the flattened device tree (or
1822 the ARM_ATAG_DTB_COMPAT option) then you may unselect this option
1823 to remove ATAGS support from your kernel binary. If unsure,
1824 leave this to y.
1825
1826config DEPRECATED_PARAM_STRUCT
1827 bool "Provide old way to pass kernel parameters"
1828 depends on ATAGS
1829 help
1830 This was deprecated in 2001 and announced to live on for 5 years.
1831 Some old boot loaders still use this way.
1832
Linus Torvalds1da177e2005-04-16 15:20:36 -07001833# Compressed boot loader in ROM. Yes, we really want to ask about
1834# TEXT and BSS so we preserve their values in the config files.
1835config ZBOOT_ROM_TEXT
1836 hex "Compressed ROM boot loader base address"
1837 default "0"
1838 help
1839 The physical address at which the ROM-able zImage is to be
1840 placed in the target. Platforms which normally make use of
1841 ROM-able zImage formats normally set this to a suitable
1842 value in their defconfig file.
1843
1844 If ZBOOT_ROM is not enabled, this has no effect.
1845
1846config ZBOOT_ROM_BSS
1847 hex "Compressed ROM boot loader BSS address"
1848 default "0"
1849 help
Dan Fandrichf8c440b2006-09-20 23:28:51 +01001850 The base address of an area of read/write memory in the target
1851 for the ROM-able zImage which must be available while the
1852 decompressor is running. It must be large enough to hold the
1853 entire decompressed kernel plus an additional 128 KiB.
1854 Platforms which normally make use of ROM-able zImage formats
1855 normally set this to a suitable value in their defconfig file.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001856
1857 If ZBOOT_ROM is not enabled, this has no effect.
1858
1859config ZBOOT_ROM
1860 bool "Compressed boot loader in ROM/flash"
1861 depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1862 help
1863 Say Y here if you intend to execute your compressed kernel image
1864 (zImage) directly from ROM or flash. If unsure, say N.
1865
Simon Horman090ab3f2011-04-26 06:29:53 +01001866choice
1867 prompt "Include SD/MMC loader in zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001868 depends on ZBOOT_ROM && ARCH_SH7372
Simon Horman090ab3f2011-04-26 06:29:53 +01001869 default ZBOOT_ROM_NONE
1870 help
1871 Include experimental SD/MMC loading code in the ROM-able zImage.
Masanari Iida59bf8962012-04-18 00:01:21 +09001872 With this enabled it is possible to write the ROM-able zImage
Simon Horman090ab3f2011-04-26 06:29:53 +01001873 kernel image to an MMC or SD card and boot the kernel straight
1874 from the reset vector. At reset the processor Mask ROM will load
Masanari Iida59bf8962012-04-18 00:01:21 +09001875 the first part of the ROM-able zImage which in turn loads the
Simon Horman090ab3f2011-04-26 06:29:53 +01001876 rest the kernel image to RAM.
1877
1878config ZBOOT_ROM_NONE
1879 bool "No SD/MMC loader in zImage (EXPERIMENTAL)"
1880 help
1881 Do not load image from SD or MMC
1882
Simon Hormanf45b1142011-01-11 04:01:08 +01001883config ZBOOT_ROM_MMCIF
1884 bool "Include MMCIF loader in zImage (EXPERIMENTAL)"
Simon Hormanf45b1142011-01-11 04:01:08 +01001885 help
Simon Horman090ab3f2011-04-26 06:29:53 +01001886 Load image from MMCIF hardware block.
1887
1888config ZBOOT_ROM_SH_MOBILE_SDHI
1889 bool "Include SuperH Mobile SDHI loader in zImage (EXPERIMENTAL)"
1890 help
1891 Load image from SDHI hardware block
1892
1893endchoice
Simon Hormanf45b1142011-01-11 04:01:08 +01001894
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001895config ARM_APPENDED_DTB
1896 bool "Use appended device tree blob to zImage (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08001897 depends on OF && !ZBOOT_ROM
John Bonesioe2a6a3a2011-05-27 18:45:50 -04001898 help
1899 With this option, the boot code will look for a device tree binary
1900 (DTB) appended to zImage
1901 (e.g. cat zImage <filename>.dtb > zImage_w_dtb).
1902
1903 This is meant as a backward compatibility convenience for those
1904 systems with a bootloader that can't be upgraded to accommodate
1905 the documented boot protocol using a device tree.
1906
1907 Beware that there is very little in terms of protection against
1908 this option being confused by leftover garbage in memory that might
1909 look like a DTB header after a reboot if no actual DTB is appended
1910 to zImage. Do not leave this option active in a production kernel
1911 if you don't intend to always append a DTB. Proper passing of the
1912 location into r2 of a bootloader provided DTB is always preferable
1913 to this option.
1914
Nicolas Pitreb90b9a32011-09-13 22:37:07 -04001915config ARM_ATAG_DTB_COMPAT
1916 bool "Supplement the appended DTB with traditional ATAG information"
1917 depends on ARM_APPENDED_DTB
1918 help
1919 Some old bootloaders can't be updated to a DTB capable one, yet
1920 they provide ATAGs with memory configuration, the ramdisk address,
1921 the kernel cmdline string, etc. Such information is dynamically
1922 provided by the bootloader and can't always be stored in a static
1923 DTB. To allow a device tree enabled kernel to be used with such
1924 bootloaders, this option allows zImage to extract the information
1925 from the ATAG list and store it at run time into the appended DTB.
1926
Genoud Richardd0f34a12012-06-26 16:37:59 +01001927choice
1928 prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT
1929 default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1930
1931config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER
1932 bool "Use bootloader kernel arguments if available"
1933 help
1934 Uses the command-line options passed by the boot loader instead of
1935 the device tree bootargs property. If the boot loader doesn't provide
1936 any, the device tree bootargs property will be used.
1937
1938config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND
1939 bool "Extend with bootloader kernel arguments"
1940 help
1941 The command-line arguments provided by the boot loader will be
1942 appended to the the device tree bootargs property.
1943
1944endchoice
1945
Linus Torvalds1da177e2005-04-16 15:20:36 -07001946config CMDLINE
1947 string "Default kernel command string"
1948 default ""
1949 help
1950 On some architectures (EBSA110 and CATS), there is currently no way
1951 for the boot loader to pass arguments to the kernel. For these
1952 architectures, you should supply some command-line options at build
1953 time by entering them here. As a minimum, you should specify the
1954 memory size and the root device (e.g., mem=64M root=/dev/nfs).
1955
Victor Boivie4394c122011-05-04 17:07:55 +01001956choice
1957 prompt "Kernel command line type" if CMDLINE != ""
1958 default CMDLINE_FROM_BOOTLOADER
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01001959 depends on ATAGS
Victor Boivie4394c122011-05-04 17:07:55 +01001960
1961config CMDLINE_FROM_BOOTLOADER
1962 bool "Use bootloader kernel arguments if available"
1963 help
1964 Uses the command-line options passed by the boot loader. If
1965 the boot loader doesn't provide any, the default kernel command
1966 string provided in CMDLINE will be used.
1967
1968config CMDLINE_EXTEND
1969 bool "Extend bootloader kernel arguments"
1970 help
1971 The command-line arguments provided by the boot loader will be
1972 appended to the default kernel command string.
1973
Alexander Holler92d20402010-02-16 19:04:53 +01001974config CMDLINE_FORCE
1975 bool "Always use the default kernel command string"
Alexander Holler92d20402010-02-16 19:04:53 +01001976 help
1977 Always use the default kernel command string, even if the boot
1978 loader passes other arguments to the kernel.
1979 This is useful if you cannot or don't want to change the
1980 command-line options your boot loader passes to the kernel.
Victor Boivie4394c122011-05-04 17:07:55 +01001981endchoice
Alexander Holler92d20402010-02-16 19:04:53 +01001982
Linus Torvalds1da177e2005-04-16 15:20:36 -07001983config XIP_KERNEL
1984 bool "Kernel Execute-In-Place from ROM"
Rob Herring387798b2012-09-06 13:41:12 -05001985 depends on !ZBOOT_ROM && !ARM_LPAE && !ARCH_MULTIPLATFORM
Linus Torvalds1da177e2005-04-16 15:20:36 -07001986 help
1987 Execute-In-Place allows the kernel to run from non-volatile storage
1988 directly addressable by the CPU, such as NOR flash. This saves RAM
1989 space since the text section of the kernel is not loaded from flash
1990 to RAM. Read-write sections, such as the data section and stack,
1991 are still copied to RAM. The XIP kernel is not compressed since
1992 it has to run directly from flash, so it will take more space to
1993 store it. The flash address used to link the kernel object files,
1994 and for storing it, is configuration dependent. Therefore, if you
1995 say Y here, you must know the proper physical address where to
1996 store the kernel image depending on your own flash memory usage.
1997
1998 Also note that the make target becomes "make xipImage" rather than
1999 "make zImage" or "make Image". The final kernel binary to put in
2000 ROM memory will be arch/arm/boot/xipImage.
2001
2002 If unsure, say N.
2003
2004config XIP_PHYS_ADDR
2005 hex "XIP Kernel Physical Location"
2006 depends on XIP_KERNEL
2007 default "0x00080000"
2008 help
2009 This is the physical address in your flash memory the kernel will
2010 be linked for and stored to. This address is dependent on your
2011 own flash usage.
2012
Richard Purdiec587e4a2007-02-06 21:29:00 +01002013config KEXEC
2014 bool "Kexec system call (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002015 depends on (!SMP || HOTPLUG_CPU)
Richard Purdiec587e4a2007-02-06 21:29:00 +01002016 help
2017 kexec is a system call that implements the ability to shutdown your
2018 current kernel, and to start another kernel. It is like a reboot
Matt LaPlante01dd2fb2007-10-20 01:34:40 +02002019 but it is independent of the system firmware. And like a reboot
Richard Purdiec587e4a2007-02-06 21:29:00 +01002020 you can start any kernel with it, not just Linux.
2021
2022 It is an ongoing process to be certain the hardware in a machine
2023 is properly shutdown, so do not be surprised if this code does not
2024 initially work for you. It may help to enable device hotplugging
2025 support.
2026
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002027config ATAGS_PROC
2028 bool "Export atags in procfs"
Nicolas Pitrebd51e2f2012-09-01 03:03:25 +01002029 depends on ATAGS && KEXEC
Uli Luckasb98d7292008-02-22 16:45:18 +01002030 default y
Richard Purdie4cd9d6f2008-01-02 00:56:46 +01002031 help
2032 Should the atags used to boot the kernel be exported in an "atags"
2033 file in procfs. Useful with kexec.
2034
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002035config CRASH_DUMP
2036 bool "Build kdump crash kernel (EXPERIMENTAL)"
Mika Westerbergcb5d39b2010-11-18 19:14:52 +01002037 help
2038 Generate crash dump after being started by kexec. This should
2039 be normally only set in special crash dump kernels which are
2040 loaded in the main kernel with kexec-tools into a specially
2041 reserved region and then later executed after a crash by
2042 kdump/kexec. The crash dump kernel must be compiled to a
2043 memory address not used by the main kernel
2044
2045 For more details see Documentation/kdump/kdump.txt
2046
Eric Miaoe69edc792010-07-05 15:56:50 +02002047config AUTO_ZRELADDR
2048 bool "Auto calculation of the decompressed kernel image address"
Linus Walleije1b31442013-05-02 18:01:46 +02002049 depends on !ZBOOT_ROM
Eric Miaoe69edc792010-07-05 15:56:50 +02002050 help
2051 ZRELADDR is the physical address where the decompressed kernel
2052 image will be placed. If AUTO_ZRELADDR is selected, the address
2053 will be determined at run-time by masking the current IP with
2054 0xf8000000. This assumes the zImage being placed in the first 128MB
2055 from start of memory.
2056
Linus Torvalds1da177e2005-04-16 15:20:36 -07002057endmenu
2058
Russell Kingac9d7ef2008-08-18 17:26:00 +01002059menu "CPU Power Management"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002060
Ben Dooks89c52ed2009-07-30 23:23:24 +01002061if ARCH_HAS_CPUFREQ
Linus Torvalds1da177e2005-04-16 15:20:36 -07002062source "drivers/cpufreq/Kconfig"
2063
Ben Dooks9d56c022009-07-30 23:23:25 +01002064config CPU_FREQ_S3C
2065 bool
2066 help
2067 Internal configuration node for common cpufreq on Samsung SoC
2068
2069config CPU_FREQ_S3C24XX
Russell King4a50bfe2010-12-05 23:06:22 +00002070 bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002071 depends on ARCH_S3C24XX && CPU_FREQ
Ben Dooks9d56c022009-07-30 23:23:25 +01002072 select CPU_FREQ_S3C
2073 help
2074 This enables the CPUfreq driver for the Samsung S3C24XX family
2075 of CPUs.
2076
2077 For details, take a look at <file:Documentation/cpu-freq>.
2078
2079 If in doubt, say N.
2080
2081config CPU_FREQ_S3C24XX_PLL
Russell King4a50bfe2010-12-05 23:06:22 +00002082 bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002083 depends on CPU_FREQ_S3C24XX
Ben Dooks9d56c022009-07-30 23:23:25 +01002084 help
2085 Compile in support for changing the PLL frequency from the
2086 S3C24XX series CPUfreq driver. The PLL takes time to settle
2087 after a frequency change, so by default it is not enabled.
2088
2089 This also means that the PLL tables for the selected CPU(s) will
2090 be built which may increase the size of the kernel image.
2091
2092config CPU_FREQ_S3C24XX_DEBUG
2093 bool "Debug CPUfreq Samsung driver core"
2094 depends on CPU_FREQ_S3C24XX
2095 help
2096 Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
2097
2098config CPU_FREQ_S3C24XX_IODEBUG
2099 bool "Debug CPUfreq Samsung driver IO timing"
2100 depends on CPU_FREQ_S3C24XX
2101 help
2102 Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
2103
Ben Dookse6d197a2009-07-30 23:23:42 +01002104config CPU_FREQ_S3C24XX_DEBUGFS
2105 bool "Export debugfs for CPUFreq"
2106 depends on CPU_FREQ_S3C24XX && DEBUG_FS
2107 help
2108 Export status information via debugfs.
2109
Linus Torvalds1da177e2005-04-16 15:20:36 -07002110endif
2111
Russell Kingac9d7ef2008-08-18 17:26:00 +01002112source "drivers/cpuidle/Kconfig"
2113
2114endmenu
2115
Linus Torvalds1da177e2005-04-16 15:20:36 -07002116menu "Floating point emulation"
2117
2118comment "At least one emulation must be selected"
2119
2120config FPE_NWFPE
2121 bool "NWFPE math emulation"
Dave Martin593c2522010-12-13 21:56:03 +01002122 depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
Linus Torvalds1da177e2005-04-16 15:20:36 -07002123 ---help---
2124 Say Y to include the NWFPE floating point emulator in the kernel.
2125 This is necessary to run most binaries. Linux does not currently
2126 support floating point hardware so you need to say Y here even if
2127 your machine has an FPA or floating point co-processor podule.
2128
2129 You may say N here if you are going to load the Acorn FPEmulator
2130 early in the bootup.
2131
2132config FPE_NWFPE_XP
2133 bool "Support extended precision"
Lennert Buytenhekbedf1422005-11-07 21:12:08 +00002134 depends on FPE_NWFPE
Linus Torvalds1da177e2005-04-16 15:20:36 -07002135 help
2136 Say Y to include 80-bit support in the kernel floating-point
2137 emulator. Otherwise, only 32 and 64-bit support is compiled in.
2138 Note that gcc does not generate 80-bit operations by default,
2139 so in most cases this option only enlarges the size of the
2140 floating point emulator without any good reason.
2141
2142 You almost surely want to say N here.
2143
2144config FPE_FASTFPE
2145 bool "FastFPE math emulation (EXPERIMENTAL)"
Kees Cookd6f94fa2013-01-16 18:53:14 -08002146 depends on (!AEABI || OABI_COMPAT) && !CPU_32v3
Linus Torvalds1da177e2005-04-16 15:20:36 -07002147 ---help---
2148 Say Y here to include the FAST floating point emulator in the kernel.
2149 This is an experimental much faster emulator which now also has full
2150 precision for the mantissa. It does not support any exceptions.
2151 It is very simple, and approximately 3-6 times faster than NWFPE.
2152
2153 It should be sufficient for most programs. It may be not suitable
2154 for scientific calculations, but you have to check this for yourself.
2155 If you do not feel you need a faster FP emulation you should better
2156 choose NWFPE.
2157
2158config VFP
2159 bool "VFP-format floating point maths"
Russell Kinge399b1a2011-01-17 15:08:32 +00002160 depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -07002161 help
2162 Say Y to include VFP support code in the kernel. This is needed
2163 if your hardware includes a VFP unit.
2164
2165 Please see <file:Documentation/arm/VFP/release-notes.txt> for
2166 release notes and additional status information.
2167
2168 Say N if your target does not have VFP hardware.
2169
Catalin Marinas25ebee02007-09-25 15:22:24 +01002170config VFPv3
2171 bool
2172 depends on VFP
2173 default y if CPU_V7
2174
Catalin Marinasb5872db2008-01-10 19:16:17 +01002175config NEON
2176 bool "Advanced SIMD (NEON) Extension support"
2177 depends on VFPv3 && CPU_V7
2178 help
2179 Say Y to include support code for NEON, the ARMv7 Advanced SIMD
2180 Extension.
2181
Linus Torvalds1da177e2005-04-16 15:20:36 -07002182endmenu
2183
2184menu "Userspace binary formats"
2185
2186source "fs/Kconfig.binfmt"
2187
2188config ARTHUR
2189 tristate "RISC OS personality"
Nicolas Pitre704bdda02006-01-14 16:33:50 +00002190 depends on !AEABI
Linus Torvalds1da177e2005-04-16 15:20:36 -07002191 help
2192 Say Y here to include the kernel code necessary if you want to run
2193 Acorn RISC OS/Arthur binaries under Linux. This code is still very
2194 experimental; if this sounds frightening, say N and sleep in peace.
2195 You can also say M here to compile this support as a module (which
2196 will be called arthur).
2197
2198endmenu
2199
2200menu "Power management options"
2201
Russell Kingeceab4a2005-11-15 11:31:41 +00002202source "kernel/power/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002203
Johannes Bergf4cb5702007-12-08 02:14:00 +01002204config ARCH_SUSPEND_POSSIBLE
Stephen Warren4b1082c2012-09-05 09:58:27 -06002205 depends on !ARCH_S5PC100
Russell King6a786182011-04-02 10:15:28 +01002206 depends on CPU_ARM920T || CPU_ARM926T || CPU_SA1100 || \
Chao Xie3f5d0812012-05-07 11:23:58 +08002207 CPU_V6 || CPU_V6K || CPU_V7 || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK
Johannes Bergf4cb5702007-12-08 02:14:00 +01002208 def_bool y
2209
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +02002210config ARM_CPU_SUSPEND
2211 def_bool PM_SLEEP
2212
Linus Torvalds1da177e2005-04-16 15:20:36 -07002213endmenu
2214
Sam Ravnborgd5950b42005-07-11 21:03:49 -07002215source "net/Kconfig"
2216
Uwe Kleine-Königac251502009-08-13 21:09:21 +02002217source "drivers/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -07002218
2219source "fs/Kconfig"
2220
Linus Torvalds1da177e2005-04-16 15:20:36 -07002221source "arch/arm/Kconfig.debug"
2222
2223source "security/Kconfig"
2224
2225source "crypto/Kconfig"
2226
2227source "lib/Kconfig"
Christoffer Dall749cf76c2013-01-20 18:28:06 -05002228
2229source "arch/arm/kvm/Kconfig"