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Linus Torvalds1da177e2005-04-16 15:20:36 -07001comment "Processor Type"
2
Linus Torvalds1da177e2005-04-16 15:20:36 -07003# Select CPU types depending on the architecture selected. This selects
4# which CPUs we support in the kernel image, and the compiler instruction
5# optimiser behaviour.
6
7# ARM610
8config CPU_ARM610
Russell Kingc7508152008-10-26 10:55:14 +00009 bool "Support ARM610 processor" if ARCH_RPC
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 select CPU_32v3
11 select CPU_CACHE_V3
12 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090013 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010014 select CPU_COPY_V3 if MMU
15 select CPU_TLB_V3 if MMU
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010016 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -070017 help
18 The ARM610 is the successor to the ARM3 processor
19 and was produced by VLSI Technology Inc.
20
21 Say Y if you want support for the ARM610 processor.
22 Otherwise, say N.
23
Hyok S. Choi07e0da72006-09-26 17:37:36 +090024# ARM7TDMI
25config CPU_ARM7TDMI
26 bool "Support ARM7TDMI processor"
Russell King6b237a32006-09-27 17:44:39 +010027 depends on !MMU
Hyok S. Choi07e0da72006-09-26 17:37:36 +090028 select CPU_32v4T
29 select CPU_ABRT_LV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010030 select CPU_PABRT_LEGACY
Hyok S. Choi07e0da72006-09-26 17:37:36 +090031 select CPU_CACHE_V4
32 help
33 A 32-bit RISC microprocessor based on the ARM7 processor core
34 which has no memory control unit and cache.
35
36 Say Y if you want support for the ARM7TDMI processor.
37 Otherwise, say N.
38
Linus Torvalds1da177e2005-04-16 15:20:36 -070039# ARM710
40config CPU_ARM710
Russell Kingc7508152008-10-26 10:55:14 +000041 bool "Support ARM710 processor" if ARCH_RPC
Linus Torvalds1da177e2005-04-16 15:20:36 -070042 select CPU_32v3
43 select CPU_CACHE_V3
44 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090045 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010046 select CPU_COPY_V3 if MMU
47 select CPU_TLB_V3 if MMU
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010048 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -070049 help
50 A 32-bit RISC microprocessor based on the ARM7 processor core
51 designed by Advanced RISC Machines Ltd. The ARM710 is the
52 successor to the ARM610 processor. It was released in
53 July 1994 by VLSI Technology Inc.
54
55 Say Y if you want support for the ARM710 processor.
56 Otherwise, say N.
57
58# ARM720T
59config CPU_ARM720T
Russell Kingc7508152008-10-26 10:55:14 +000060 bool "Support ARM720T processor" if ARCH_INTEGRATOR
Lennert Buytenhek260e98e2006-08-28 12:51:20 +010061 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 select CPU_ABRT_LV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010063 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -070064 select CPU_CACHE_V4
65 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090066 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010067 select CPU_COPY_V4WT if MMU
68 select CPU_TLB_V4WT if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 help
70 A 32-bit RISC processor with 8kByte Cache, Write Buffer and
71 MMU built around an ARM7TDMI core.
72
73 Say Y if you want support for the ARM720T processor.
74 Otherwise, say N.
75
Hyok S. Choib731c312006-09-26 17:37:50 +090076# ARM740T
77config CPU_ARM740T
78 bool "Support ARM740T processor" if ARCH_INTEGRATOR
Russell King6b237a32006-09-27 17:44:39 +010079 depends on !MMU
Hyok S. Choib731c312006-09-26 17:37:50 +090080 select CPU_32v4T
81 select CPU_ABRT_LV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010082 select CPU_PABRT_LEGACY
Hyok S. Choib731c312006-09-26 17:37:50 +090083 select CPU_CACHE_V3 # although the core is v4t
84 select CPU_CP15_MPU
85 help
86 A 32-bit RISC processor with 8KB cache or 4KB variants,
87 write buffer and MPU(Protection Unit) built around
88 an ARM7TDMI core.
89
90 Say Y if you want support for the ARM740T processor.
91 Otherwise, say N.
92
Hyok S. Choi43f5f012006-09-26 17:38:05 +090093# ARM9TDMI
94config CPU_ARM9TDMI
95 bool "Support ARM9TDMI processor"
Russell King6b237a32006-09-27 17:44:39 +010096 depends on !MMU
Hyok S. Choi43f5f012006-09-26 17:38:05 +090097 select CPU_32v4T
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +090098 select CPU_ABRT_NOMMU
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010099 select CPU_PABRT_LEGACY
Hyok S. Choi43f5f012006-09-26 17:38:05 +0900100 select CPU_CACHE_V4
101 help
102 A 32-bit RISC microprocessor based on the ARM9 processor core
103 which has no memory control unit and cache.
104
105 Say Y if you want support for the ARM9TDMI processor.
106 Otherwise, say N.
107
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108# ARM920T
109config CPU_ARM920T
Russell Kingc7508152008-10-26 10:55:14 +0000110 bool "Support ARM920T processor" if ARCH_INTEGRATOR
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100111 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112 select CPU_ABRT_EV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100113 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 select CPU_CACHE_V4WT
115 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900116 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100117 select CPU_COPY_V4WB if MMU
118 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700119 help
120 The ARM920T is licensed to be produced by numerous vendors,
Hartley Sweetenc768e672009-10-21 02:27:01 +0100121 and is used in the Cirrus EP93xx and the Samsung S3C2410.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700122
123 Say Y if you want support for the ARM920T processor.
124 Otherwise, say N.
125
126# ARM922T
127config CPU_ARM922T
128 bool "Support ARM922T processor" if ARCH_INTEGRATOR
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100129 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 select CPU_ABRT_EV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100131 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132 select CPU_CACHE_V4WT
133 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900134 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100135 select CPU_COPY_V4WB if MMU
136 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137 help
138 The ARM922T is a version of the ARM920T, but with smaller
139 instruction and data caches. It is used in Altera's
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100140 Excalibur XA device family and Micrel's KS8695 Centaur.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141
142 Say Y if you want support for the ARM922T processor.
143 Otherwise, say N.
144
145# ARM925T
146config CPU_ARM925T
Tony Lindgrenb288f752005-07-10 19:58:08 +0100147 bool "Support ARM925T processor" if ARCH_OMAP1
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100148 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 select CPU_ABRT_EV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100150 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 select CPU_CACHE_V4WT
152 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900153 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100154 select CPU_COPY_V4WB if MMU
155 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 help
157 The ARM925T is a mix between the ARM920T and ARM926T, but with
158 different instruction and data caches. It is used in TI's OMAP
159 device family.
160
161 Say Y if you want support for the ARM925T processor.
162 Otherwise, say N.
163
164# ARM926T
165config CPU_ARM926T
Russell Kingc7508152008-10-26 10:55:14 +0000166 bool "Support ARM926T processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 select CPU_32v5
168 select CPU_ABRT_EV5TJ
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100169 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900171 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100172 select CPU_COPY_V4WB if MMU
173 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 help
175 This is a variant of the ARM920. It has slightly different
176 instruction sequences for cache and TLB operations. Curiously,
177 there is no documentation on it at the ARM corporate website.
178
179 Say Y if you want support for the ARM926T processor.
180 Otherwise, say N.
181
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200182# FA526
183config CPU_FA526
184 bool
185 select CPU_32v4
186 select CPU_ABRT_EV4
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100187 select CPU_PABRT_LEGACY
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200188 select CPU_CACHE_VIVT
189 select CPU_CP15_MMU
190 select CPU_CACHE_FA
191 select CPU_COPY_FA if MMU
192 select CPU_TLB_FA if MMU
193 help
194 The FA526 is a version of the ARMv4 compatible processor with
195 Branch Target Buffer, Unified TLB and cache line size 16.
196
197 Say Y if you want support for the FA526 processor.
198 Otherwise, say N.
199
Hyok S. Choid60674e2006-09-26 17:38:18 +0900200# ARM940T
201config CPU_ARM940T
202 bool "Support ARM940T processor" if ARCH_INTEGRATOR
Russell King6b237a32006-09-27 17:44:39 +0100203 depends on !MMU
Hyok S. Choid60674e2006-09-26 17:38:18 +0900204 select CPU_32v4T
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900205 select CPU_ABRT_NOMMU
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100206 select CPU_PABRT_LEGACY
Hyok S. Choid60674e2006-09-26 17:38:18 +0900207 select CPU_CACHE_VIVT
208 select CPU_CP15_MPU
209 help
210 ARM940T is a member of the ARM9TDMI family of general-
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +0100211 purpose microprocessors with MPU and separate 4KB
Hyok S. Choid60674e2006-09-26 17:38:18 +0900212 instruction and 4KB data cases, each with a 4-word line
213 length.
214
215 Say Y if you want support for the ARM940T processor.
216 Otherwise, say N.
217
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900218# ARM946E-S
219config CPU_ARM946E
220 bool "Support ARM946E-S processor" if ARCH_INTEGRATOR
Russell King6b237a32006-09-27 17:44:39 +0100221 depends on !MMU
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900222 select CPU_32v5
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900223 select CPU_ABRT_NOMMU
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100224 select CPU_PABRT_LEGACY
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900225 select CPU_CACHE_VIVT
226 select CPU_CP15_MPU
227 help
228 ARM946E-S is a member of the ARM9E-S family of high-
229 performance, 32-bit system-on-chip processor solutions.
230 The TCM and ARMv5TE 32-bit instruction set is supported.
231
232 Say Y if you want support for the ARM946E-S processor.
233 Otherwise, say N.
234
Linus Torvalds1da177e2005-04-16 15:20:36 -0700235# ARM1020 - needs validating
236config CPU_ARM1020
Russell Kingc7508152008-10-26 10:55:14 +0000237 bool "Support ARM1020T (rev 0) processor" if ARCH_INTEGRATOR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 select CPU_32v5
239 select CPU_ABRT_EV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100240 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 select CPU_CACHE_V4WT
242 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900243 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100244 select CPU_COPY_V4WB if MMU
245 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 help
247 The ARM1020 is the 32K cached version of the ARM10 processor,
248 with an addition of a floating-point unit.
249
250 Say Y if you want support for the ARM1020 processor.
251 Otherwise, say N.
252
253# ARM1020E - needs validating
254config CPU_ARM1020E
Russell Kingc7508152008-10-26 10:55:14 +0000255 bool "Support ARM1020E processor" if ARCH_INTEGRATOR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 select CPU_32v5
257 select CPU_ABRT_EV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100258 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259 select CPU_CACHE_V4WT
260 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900261 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100262 select CPU_COPY_V4WB if MMU
263 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 depends on n
265
266# ARM1022E
267config CPU_ARM1022
Russell Kingc7508152008-10-26 10:55:14 +0000268 bool "Support ARM1022E processor" if ARCH_INTEGRATOR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700269 select CPU_32v5
270 select CPU_ABRT_EV4T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100271 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900273 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100274 select CPU_COPY_V4WB if MMU # can probably do better
275 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 help
277 The ARM1022E is an implementation of the ARMv5TE architecture
278 based upon the ARM10 integer core with a 16KiB L1 Harvard cache,
279 embedded trace macrocell, and a floating-point unit.
280
281 Say Y if you want support for the ARM1022E processor.
282 Otherwise, say N.
283
284# ARM1026EJ-S
285config CPU_ARM1026
Russell Kingc7508152008-10-26 10:55:14 +0000286 bool "Support ARM1026EJ-S processor" if ARCH_INTEGRATOR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 select CPU_32v5
288 select CPU_ABRT_EV5T # But need Jazelle, but EV5TJ ignores bit 10
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100289 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900291 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100292 select CPU_COPY_V4WB if MMU # can probably do better
293 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 help
295 The ARM1026EJ-S is an implementation of the ARMv5TEJ architecture
296 based upon the ARM10 integer core.
297
298 Say Y if you want support for the ARM1026EJ-S processor.
299 Otherwise, say N.
300
301# SA110
302config CPU_SA110
Russell Kingc7508152008-10-26 10:55:14 +0000303 bool "Support StrongARM(R) SA-110 processor" if ARCH_RPC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304 select CPU_32v3 if ARCH_RPC
305 select CPU_32v4 if !ARCH_RPC
306 select CPU_ABRT_EV4
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100307 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 select CPU_CACHE_V4WB
309 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900310 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100311 select CPU_COPY_V4WB if MMU
312 select CPU_TLB_V4WB if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 help
314 The Intel StrongARM(R) SA-110 is a 32-bit microprocessor and
315 is available at five speeds ranging from 100 MHz to 233 MHz.
316 More information is available at
317 <http://developer.intel.com/design/strong/sa110.htm>.
318
319 Say Y if you want support for the SA-110 processor.
320 Otherwise, say N.
321
322# SA1100
323config CPU_SA1100
324 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325 select CPU_32v4
326 select CPU_ABRT_EV4
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100327 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 select CPU_CACHE_V4WB
329 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900330 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100331 select CPU_TLB_V4WB if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332
333# XScale
334config CPU_XSCALE
335 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336 select CPU_32v5
337 select CPU_ABRT_EV5T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100338 select CPU_PABRT_LEGACY
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900340 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100341 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100343# XScale Core Version 3
344config CPU_XSC3
345 bool
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100346 select CPU_32v5
347 select CPU_ABRT_EV5T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100348 select CPU_PABRT_LEGACY
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100349 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900350 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100351 select CPU_TLB_V4WBI if MMU
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100352 select IO_36
353
Eric Miao49cbe782009-01-20 14:15:18 +0800354# Marvell PJ1 (Mohawk)
355config CPU_MOHAWK
356 bool
357 select CPU_32v5
358 select CPU_ABRT_EV5T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100359 select CPU_PABRT_LEGACY
Eric Miao49cbe782009-01-20 14:15:18 +0800360 select CPU_CACHE_VIVT
361 select CPU_CP15_MMU
362 select CPU_TLB_V4WBI if MMU
363 select CPU_COPY_V4WB if MMU
364
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400365# Feroceon
366config CPU_FEROCEON
367 bool
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400368 select CPU_32v5
369 select CPU_ABRT_EV5T
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100370 select CPU_PABRT_LEGACY
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400371 select CPU_CACHE_VIVT
372 select CPU_CP15_MMU
Lennert Buytenhek0ed15072008-04-24 01:31:45 -0400373 select CPU_COPY_FEROCEON if MMU
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200374 select CPU_TLB_FEROCEON if MMU
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400375
Tzachi Perelsteind910a0a2007-11-06 10:35:40 +0200376config CPU_FEROCEON_OLD_ID
377 bool "Accept early Feroceon cores with an ARM926 ID"
378 depends on CPU_FEROCEON && !CPU_ARM926T
379 default y
380 help
381 This enables the usage of some old Feroceon cores
382 for which the CPU ID is equal to the ARM926 ID.
383 Relevant for Feroceon-1850 and early Feroceon-2850.
384
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385# ARMv6
386config CPU_V6
Saeed Bisharaedabd382009-08-06 15:12:43 +0300387 bool "Support ARM V6 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX || ARCH_DOVE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700388 select CPU_32v6
389 select CPU_ABRT_EV6
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100390 select CPU_PABRT_V6
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391 select CPU_CACHE_V6
392 select CPU_CACHE_VIPT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900393 select CPU_CP15_MMU
Catalin Marinas7b4c9652007-07-20 11:42:57 +0100394 select CPU_HAS_ASID if MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100395 select CPU_COPY_V6 if MMU
396 select CPU_TLB_V6 if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397
Russell King4a5f79e2005-11-03 15:48:21 +0000398# ARMv6k
399config CPU_32v6K
400 bool "Support ARM V6K processor extensions" if !SMP
401 depends on CPU_V6
Tony Lindgren1a28e3d2010-02-01 23:30:26 +0100402 default y if SMP && !(ARCH_MX3 || ARCH_OMAP2)
Russell King4a5f79e2005-11-03 15:48:21 +0000403 help
404 Say Y here if your ARMv6 processor supports the 'K' extension.
405 This enables the kernel to use some instructions not present
406 on previous processors, and as such a kernel build with this
407 enabled will not boot on processors with do not support these
408 instructions.
409
Catalin Marinas23688e92007-05-08 22:45:26 +0100410# ARMv7
411config CPU_V7
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100412 bool "Support ARM V7 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX
Tony Lindgren1a28e3d2010-02-01 23:30:26 +0100413 select CPU_32v6K if !ARCH_OMAP2
Catalin Marinas23688e92007-05-08 22:45:26 +0100414 select CPU_32v7
415 select CPU_ABRT_EV7
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100416 select CPU_PABRT_V7
Catalin Marinas23688e92007-05-08 22:45:26 +0100417 select CPU_CACHE_V7
418 select CPU_CACHE_VIPT
419 select CPU_CP15_MMU
Catalin Marinas2eb8c822007-07-20 11:43:02 +0100420 select CPU_HAS_ASID if MMU
Catalin Marinas23688e92007-05-08 22:45:26 +0100421 select CPU_COPY_V6 if MMU
Catalin Marinas2ccdd1e2007-05-18 11:25:31 +0100422 select CPU_TLB_V7 if MMU
Catalin Marinas23688e92007-05-08 22:45:26 +0100423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424# Figure out what processor architecture version we should be using.
425# This defines the compiler instruction set which depends on the machine type.
426config CPU_32v3
427 bool
Russell King60b6cf62006-06-19 17:36:43 +0100428 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000429 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430
431config CPU_32v4
432 bool
Russell King60b6cf62006-06-19 17:36:43 +0100433 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000434 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100436config CPU_32v4T
437 bool
438 select TLS_REG_EMUL if SMP || !MMU
439 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
440
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441config CPU_32v5
442 bool
Russell King60b6cf62006-06-19 17:36:43 +0100443 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000444 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445
446config CPU_32v6
447 bool
Catalin Marinas367afaf2007-07-20 11:42:51 +0100448 select TLS_REG_EMUL if !CPU_32v6K && !MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449
Catalin Marinas23688e92007-05-08 22:45:26 +0100450config CPU_32v7
451 bool
452
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453# The abort model
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900454config CPU_ABRT_NOMMU
455 bool
456
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457config CPU_ABRT_EV4
458 bool
459
460config CPU_ABRT_EV4T
461 bool
462
463config CPU_ABRT_LV4T
464 bool
465
466config CPU_ABRT_EV5T
467 bool
468
469config CPU_ABRT_EV5TJ
470 bool
471
472config CPU_ABRT_EV6
473 bool
474
Catalin Marinas23688e92007-05-08 22:45:26 +0100475config CPU_ABRT_EV7
476 bool
477
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100478config CPU_PABRT_LEGACY
Paul Brook48d79272008-04-18 22:43:07 +0100479 bool
480
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100481config CPU_PABRT_V6
482 bool
483
484config CPU_PABRT_V7
Paul Brook48d79272008-04-18 22:43:07 +0100485 bool
486
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487# The cache model
488config CPU_CACHE_V3
489 bool
490
491config CPU_CACHE_V4
492 bool
493
494config CPU_CACHE_V4WT
495 bool
496
497config CPU_CACHE_V4WB
498 bool
499
500config CPU_CACHE_V6
501 bool
502
Catalin Marinas23688e92007-05-08 22:45:26 +0100503config CPU_CACHE_V7
504 bool
505
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506config CPU_CACHE_VIVT
507 bool
508
509config CPU_CACHE_VIPT
510 bool
511
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200512config CPU_CACHE_FA
513 bool
514
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100515if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516# The copy-page model
517config CPU_COPY_V3
518 bool
519
520config CPU_COPY_V4WT
521 bool
522
523config CPU_COPY_V4WB
524 bool
525
Lennert Buytenhek0ed15072008-04-24 01:31:45 -0400526config CPU_COPY_FEROCEON
527 bool
528
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200529config CPU_COPY_FA
530 bool
531
Linus Torvalds1da177e2005-04-16 15:20:36 -0700532config CPU_COPY_V6
533 bool
534
535# This selects the TLB model
536config CPU_TLB_V3
537 bool
538 help
539 ARM Architecture Version 3 TLB.
540
541config CPU_TLB_V4WT
542 bool
543 help
544 ARM Architecture Version 4 TLB with writethrough cache.
545
546config CPU_TLB_V4WB
547 bool
548 help
549 ARM Architecture Version 4 TLB with writeback cache.
550
551config CPU_TLB_V4WBI
552 bool
553 help
554 ARM Architecture Version 4 TLB with writeback cache and invalidate
555 instruction cache entry.
556
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200557config CPU_TLB_FEROCEON
558 bool
559 help
560 Feroceon TLB (v4wbi with non-outer-cachable page table walks).
561
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200562config CPU_TLB_FA
563 bool
564 help
565 Faraday ARM FA526 architecture, unified TLB with writeback cache
566 and invalidate instruction cache entry. Branch target buffer is
567 also supported.
568
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569config CPU_TLB_V6
570 bool
571
Catalin Marinas2ccdd1e2007-05-18 11:25:31 +0100572config CPU_TLB_V7
573 bool
574
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100575endif
576
Russell King516793c2007-05-17 10:19:23 +0100577config CPU_HAS_ASID
578 bool
579 help
580 This indicates whether the CPU has the ASID register; used to
581 tag TLB and possibly cache entries.
582
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900583config CPU_CP15
584 bool
585 help
586 Processor has the CP15 register.
587
588config CPU_CP15_MMU
589 bool
590 select CPU_CP15
591 help
592 Processor has the CP15 register, which has MMU related registers.
593
594config CPU_CP15_MPU
595 bool
596 select CPU_CP15
597 help
598 Processor has the CP15 register, which has MPU related registers.
599
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100600#
601# CPU supports 36-bit I/O
602#
603config IO_36
604 bool
605
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606comment "Processor Features"
607
608config ARM_THUMB
609 bool "Support Thumb user binaries"
Eric Miao49cbe782009-01-20 14:15:18 +0800610 depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_V6 || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611 default y
612 help
613 Say Y if you want to include kernel support for running user space
614 Thumb binaries.
615
616 The Thumb instruction set is a compressed form of the standard ARM
617 instruction set resulting in smaller binaries at the expense of
618 slightly less efficient code.
619
620 If you don't know what this all is, saying Y is a safe choice.
621
Catalin Marinasd7f864b2008-04-18 22:43:06 +0100622config ARM_THUMBEE
623 bool "Enable ThumbEE CPU extension"
624 depends on CPU_V7
625 help
626 Say Y here if you have a CPU with the ThumbEE extension and code to
627 make use of it. Say N for code that can run on CPUs without ThumbEE.
628
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629config CPU_BIG_ENDIAN
630 bool "Build big-endian kernel"
631 depends on ARCH_SUPPORTS_BIG_ENDIAN
632 help
633 Say Y if you plan on running a kernel in big-endian mode.
634 Note that your board must be properly built and your board
635 port must properly enable any big-endian related features
636 of your chipset/board/processor.
637
Catalin Marinas26584852009-05-30 14:00:18 +0100638config CPU_ENDIAN_BE8
639 bool
640 depends on CPU_BIG_ENDIAN
641 default CPU_V6 || CPU_V7
642 help
643 Support for the BE-8 (big-endian) mode on ARMv6 and ARMv7 processors.
644
645config CPU_ENDIAN_BE32
646 bool
647 depends on CPU_BIG_ENDIAN
648 default !CPU_ENDIAN_BE8
649 help
650 Support for the BE-32 (big-endian) mode on pre-ARMv6 processors.
651
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900652config CPU_HIGH_VECTOR
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100653 depends on !MMU && CPU_CP15 && !CPU_ARM740T
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900654 bool "Select the High exception vector"
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900655 help
656 Say Y here to select high exception vector(0xFFFF0000~).
657 The exception vector can be vary depending on the platform
658 design in nommu mode. If your platform needs to select
659 high exception vector, say Y.
660 Otherwise or if you are unsure, say N, and the low exception
661 vector (0x00000000~) will be used.
662
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663config CPU_ICACHE_DISABLE
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900664 bool "Disable I-Cache (I-bit)"
665 depends on CPU_CP15 && !(CPU_ARM610 || CPU_ARM710 || CPU_ARM720T || CPU_ARM740T || CPU_XSCALE || CPU_XSC3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666 help
667 Say Y here to disable the processor instruction cache. Unless
668 you have a reason not to or are unsure, say N.
669
670config CPU_DCACHE_DISABLE
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900671 bool "Disable D-Cache (C-bit)"
672 depends on CPU_CP15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 help
674 Say Y here to disable the processor data cache. Unless
675 you have a reason not to or are unsure, say N.
676
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900677config CPU_DCACHE_SIZE
678 hex
679 depends on CPU_ARM740T || CPU_ARM946E
680 default 0x00001000 if CPU_ARM740T
681 default 0x00002000 # default size for ARM946E-S
682 help
683 Some cores are synthesizable to have various sized cache. For
684 ARM946E-S case, it can vary from 0KB to 1MB.
685 To support such cache operations, it is efficient to know the size
686 before compile time.
687 If your SoC is configured to have a different size, define the value
688 here with proper conditions.
689
Linus Torvalds1da177e2005-04-16 15:20:36 -0700690config CPU_DCACHE_WRITETHROUGH
691 bool "Force write through D-cache"
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200692 depends on (CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_FA526) && !CPU_DCACHE_DISABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700693 default y if CPU_ARM925T
694 help
695 Say Y here to use the data cache in writethrough mode. Unless you
696 specifically require this or are unsure, say N.
697
698config CPU_CACHE_ROUND_ROBIN
699 bool "Round robin I and D cache replacement algorithm"
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900700 depends on (CPU_ARM926T || CPU_ARM946E || CPU_ARM1020) && (!CPU_ICACHE_DISABLE || !CPU_DCACHE_DISABLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701 help
702 Say Y here to use the predictable round-robin cache replacement
703 policy. Unless you specifically require this or are unsure, say N.
704
705config CPU_BPREDICT_DISABLE
706 bool "Disable branch prediction"
Russell King542f8692009-03-26 23:10:11 +0000707 depends on CPU_ARM1020 || CPU_V6 || CPU_MOHAWK || CPU_XSC3 || CPU_V7 || CPU_FA526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 help
709 Say Y here to disable branch prediction. If unsure, say N.
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100710
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100711config TLS_REG_EMUL
712 bool
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100713 help
Nicolas Pitre70489c82005-05-12 19:27:12 +0100714 An SMP system using a pre-ARMv6 processor (there are apparently
715 a few prototypes like that in existence) and therefore access to
716 that required register must be emulated.
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100717
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100718config HAS_TLS_REG
719 bool
Nicolas Pitre70489c82005-05-12 19:27:12 +0100720 depends on !TLS_REG_EMUL
721 default y if SMP || CPU_32v7
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100722 help
723 This selects support for the CP15 thread register.
Nicolas Pitre70489c82005-05-12 19:27:12 +0100724 It is defined to be available on some ARMv6 processors (including
725 all SMP capable ARMv6's) or later processors. User space may
726 assume directly accessing that register and always obtain the
727 expected value only on ARMv7 and above.
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100728
Nicolas Pitredcef1f62005-06-08 19:00:47 +0100729config NEEDS_SYSCALL_FOR_CMPXCHG
730 bool
Nicolas Pitredcef1f62005-06-08 19:00:47 +0100731 help
732 SMP on a pre-ARMv6 processor? Well OK then.
733 Forget about fast user space cmpxchg support.
734 It is just not possible.
735
Catalin Marinas953233d2007-02-05 14:48:08 +0100736config OUTER_CACHE
737 bool
Catalin Marinas382266a2007-02-05 14:48:19 +0100738
Catalin Marinas319f5512010-03-24 16:47:53 +0100739config OUTER_CACHE_SYNC
740 bool
741 help
742 The outer cache has a outer_cache_fns.sync function pointer
743 that can be used to drain the write buffer of the outer cache.
744
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200745config CACHE_FEROCEON_L2
746 bool "Enable the Feroceon L2 cache controller"
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200747 depends on ARCH_KIRKWOOD || ARCH_MV78XX0
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200748 default y
Catalin Marinas382266a2007-02-05 14:48:19 +0100749 select OUTER_CACHE
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200750 help
751 This option enables the Feroceon L2 cache controller.
752
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300753config CACHE_FEROCEON_L2_WRITETHROUGH
754 bool "Force Feroceon L2 cache write through"
755 depends on CACHE_FEROCEON_L2
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300756 help
757 Say Y here to use the Feroceon L2 cache in writethrough mode.
758 Unless you specifically require this, say N for writeback mode.
759
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760config CACHE_L2X0
Catalin Marinasba927952008-04-18 22:43:17 +0100761 bool "Enable the L2x0 outer cache controller"
Sascha Hauercb882142009-02-08 02:00:50 +0100762 depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \
Santosh Shilimkard309427e2010-02-04 19:37:09 +0100763 REALVIEW_EB_A9MP || ARCH_MX35 || ARCH_MX31 || MACH_REALVIEW_PBX || ARCH_NOMADIK || ARCH_OMAP4
Catalin Marinasba927952008-04-18 22:43:17 +0100764 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700765 select OUTER_CACHE
Catalin Marinas23107c52010-03-24 16:48:53 +0100766 select OUTER_CACHE_SYNC
Catalin Marinasba927952008-04-18 22:43:17 +0100767 help
768 This option enables the L2x0 PrimeCell.
Eric Miao905a09d2008-06-06 16:34:03 +0800769
Lennert Buytenhek573a6522009-11-24 19:33:52 +0200770config CACHE_TAUROS2
771 bool "Enable the Tauros2 L2 cache controller"
772 depends on ARCH_DOVE
773 default y
774 select OUTER_CACHE
775 help
776 This option enables the Tauros2 L2 cache controller (as
777 found on PJ1/PJ4).
778
Eric Miao905a09d2008-06-06 16:34:03 +0800779config CACHE_XSC3L2
780 bool "Enable the L2 cache on XScale3"
781 depends on CPU_XSC3
782 default y
783 select OUTER_CACHE
784 help
785 This option enables the L2 cache on XScale3.
Kirill A. Shutemov910a17e2009-09-15 10:23:53 +0100786
787config ARM_L1_CACHE_SHIFT
788 int
Kukjin Kimd6d502f2010-02-22 00:02:59 +0100789 default 6 if ARM_L1_CACHE_SHIFT_6
Kirill A. Shutemov910a17e2009-09-15 10:23:53 +0100790 default 5
Catalin Marinase7c56502010-03-24 16:49:54 +0100791
792config ARCH_HAS_BARRIERS
793 bool
794 help
795 This option allows the use of custom mandatory barriers
796 included via the mach/barriers.h file.