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Linus Torvalds1da177e2005-04-16 15:20:36 -07001comment "Processor Type"
2
3config CPU_32
4 bool
5 default y
6
7# Select CPU types depending on the architecture selected. This selects
8# which CPUs we support in the kernel image, and the compiler instruction
9# optimiser behaviour.
10
11# ARM610
12config CPU_ARM610
Russell Kingc7508152008-10-26 10:55:14 +000013 bool "Support ARM610 processor" if ARCH_RPC
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 select CPU_32v3
15 select CPU_CACHE_V3
16 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090017 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010018 select CPU_COPY_V3 if MMU
19 select CPU_TLB_V3 if MMU
Paul Brook48d79272008-04-18 22:43:07 +010020 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -070021 help
22 The ARM610 is the successor to the ARM3 processor
23 and was produced by VLSI Technology Inc.
24
25 Say Y if you want support for the ARM610 processor.
26 Otherwise, say N.
27
Hyok S. Choi07e0da72006-09-26 17:37:36 +090028# ARM7TDMI
29config CPU_ARM7TDMI
30 bool "Support ARM7TDMI processor"
Russell King6b237a32006-09-27 17:44:39 +010031 depends on !MMU
Hyok S. Choi07e0da72006-09-26 17:37:36 +090032 select CPU_32v4T
33 select CPU_ABRT_LV4T
Catalin Marinas4a1fd552008-04-21 18:42:04 +010034 select CPU_PABRT_NOIFAR
Hyok S. Choi07e0da72006-09-26 17:37:36 +090035 select CPU_CACHE_V4
36 help
37 A 32-bit RISC microprocessor based on the ARM7 processor core
38 which has no memory control unit and cache.
39
40 Say Y if you want support for the ARM7TDMI processor.
41 Otherwise, say N.
42
Linus Torvalds1da177e2005-04-16 15:20:36 -070043# ARM710
44config CPU_ARM710
Russell Kingc7508152008-10-26 10:55:14 +000045 bool "Support ARM710 processor" if ARCH_RPC
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 select CPU_32v3
47 select CPU_CACHE_V3
48 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090049 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010050 select CPU_COPY_V3 if MMU
51 select CPU_TLB_V3 if MMU
Paul Brook48d79272008-04-18 22:43:07 +010052 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 help
54 A 32-bit RISC microprocessor based on the ARM7 processor core
55 designed by Advanced RISC Machines Ltd. The ARM710 is the
56 successor to the ARM610 processor. It was released in
57 July 1994 by VLSI Technology Inc.
58
59 Say Y if you want support for the ARM710 processor.
60 Otherwise, say N.
61
62# ARM720T
63config CPU_ARM720T
Russell Kingc7508152008-10-26 10:55:14 +000064 bool "Support ARM720T processor" if ARCH_INTEGRATOR
Lennert Buytenhek260e98e2006-08-28 12:51:20 +010065 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -070066 select CPU_ABRT_LV4T
Paul Brook48d79272008-04-18 22:43:07 +010067 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 select CPU_CACHE_V4
69 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090070 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010071 select CPU_COPY_V4WT if MMU
72 select CPU_TLB_V4WT if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 help
74 A 32-bit RISC processor with 8kByte Cache, Write Buffer and
75 MMU built around an ARM7TDMI core.
76
77 Say Y if you want support for the ARM720T processor.
78 Otherwise, say N.
79
Hyok S. Choib731c312006-09-26 17:37:50 +090080# ARM740T
81config CPU_ARM740T
82 bool "Support ARM740T processor" if ARCH_INTEGRATOR
Russell King6b237a32006-09-27 17:44:39 +010083 depends on !MMU
Hyok S. Choib731c312006-09-26 17:37:50 +090084 select CPU_32v4T
85 select CPU_ABRT_LV4T
Catalin Marinas4a1fd552008-04-21 18:42:04 +010086 select CPU_PABRT_NOIFAR
Hyok S. Choib731c312006-09-26 17:37:50 +090087 select CPU_CACHE_V3 # although the core is v4t
88 select CPU_CP15_MPU
89 help
90 A 32-bit RISC processor with 8KB cache or 4KB variants,
91 write buffer and MPU(Protection Unit) built around
92 an ARM7TDMI core.
93
94 Say Y if you want support for the ARM740T processor.
95 Otherwise, say N.
96
Hyok S. Choi43f5f012006-09-26 17:38:05 +090097# ARM9TDMI
98config CPU_ARM9TDMI
99 bool "Support ARM9TDMI processor"
Russell King6b237a32006-09-27 17:44:39 +0100100 depends on !MMU
Hyok S. Choi43f5f012006-09-26 17:38:05 +0900101 select CPU_32v4T
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900102 select CPU_ABRT_NOMMU
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100103 select CPU_PABRT_NOIFAR
Hyok S. Choi43f5f012006-09-26 17:38:05 +0900104 select CPU_CACHE_V4
105 help
106 A 32-bit RISC microprocessor based on the ARM9 processor core
107 which has no memory control unit and cache.
108
109 Say Y if you want support for the ARM9TDMI processor.
110 Otherwise, say N.
111
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112# ARM920T
113config CPU_ARM920T
Russell Kingc7508152008-10-26 10:55:14 +0000114 bool "Support ARM920T processor" if ARCH_INTEGRATOR
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100115 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100117 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 select CPU_CACHE_V4WT
119 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900120 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100121 select CPU_COPY_V4WB if MMU
122 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123 help
124 The ARM920T is licensed to be produced by numerous vendors,
125 and is used in the Maverick EP9312 and the Samsung S3C2410.
126
127 More information on the Maverick EP9312 at
128 <http://linuxdevices.com/products/PD2382866068.html>.
129
130 Say Y if you want support for the ARM920T processor.
131 Otherwise, say N.
132
133# ARM922T
134config CPU_ARM922T
135 bool "Support ARM922T processor" if ARCH_INTEGRATOR
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100136 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700137 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100138 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 select CPU_CACHE_V4WT
140 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900141 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100142 select CPU_COPY_V4WB if MMU
143 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 help
145 The ARM922T is a version of the ARM920T, but with smaller
146 instruction and data caches. It is used in Altera's
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100147 Excalibur XA device family and Micrel's KS8695 Centaur.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700148
149 Say Y if you want support for the ARM922T processor.
150 Otherwise, say N.
151
152# ARM925T
153config CPU_ARM925T
Tony Lindgrenb288f752005-07-10 19:58:08 +0100154 bool "Support ARM925T processor" if ARCH_OMAP1
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100155 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100157 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158 select CPU_CACHE_V4WT
159 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900160 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100161 select CPU_COPY_V4WB if MMU
162 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163 help
164 The ARM925T is a mix between the ARM920T and ARM926T, but with
165 different instruction and data caches. It is used in TI's OMAP
166 device family.
167
168 Say Y if you want support for the ARM925T processor.
169 Otherwise, say N.
170
171# ARM926T
172config CPU_ARM926T
Russell Kingc7508152008-10-26 10:55:14 +0000173 bool "Support ARM926T processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 select CPU_32v5
175 select CPU_ABRT_EV5TJ
Paul Brook48d79272008-04-18 22:43:07 +0100176 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900178 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100179 select CPU_COPY_V4WB if MMU
180 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 help
182 This is a variant of the ARM920. It has slightly different
183 instruction sequences for cache and TLB operations. Curiously,
184 there is no documentation on it at the ARM corporate website.
185
186 Say Y if you want support for the ARM926T processor.
187 Otherwise, say N.
188
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200189# FA526
190config CPU_FA526
191 bool
192 select CPU_32v4
193 select CPU_ABRT_EV4
194 select CPU_PABRT_NOIFAR
195 select CPU_CACHE_VIVT
196 select CPU_CP15_MMU
197 select CPU_CACHE_FA
198 select CPU_COPY_FA if MMU
199 select CPU_TLB_FA if MMU
200 help
201 The FA526 is a version of the ARMv4 compatible processor with
202 Branch Target Buffer, Unified TLB and cache line size 16.
203
204 Say Y if you want support for the FA526 processor.
205 Otherwise, say N.
206
Hyok S. Choid60674e2006-09-26 17:38:18 +0900207# ARM940T
208config CPU_ARM940T
209 bool "Support ARM940T processor" if ARCH_INTEGRATOR
Russell King6b237a32006-09-27 17:44:39 +0100210 depends on !MMU
Hyok S. Choid60674e2006-09-26 17:38:18 +0900211 select CPU_32v4T
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900212 select CPU_ABRT_NOMMU
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100213 select CPU_PABRT_NOIFAR
Hyok S. Choid60674e2006-09-26 17:38:18 +0900214 select CPU_CACHE_VIVT
215 select CPU_CP15_MPU
216 help
217 ARM940T is a member of the ARM9TDMI family of general-
Matt LaPlante3cb2fcc2006-11-30 05:22:59 +0100218 purpose microprocessors with MPU and separate 4KB
Hyok S. Choid60674e2006-09-26 17:38:18 +0900219 instruction and 4KB data cases, each with a 4-word line
220 length.
221
222 Say Y if you want support for the ARM940T processor.
223 Otherwise, say N.
224
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900225# ARM946E-S
226config CPU_ARM946E
227 bool "Support ARM946E-S processor" if ARCH_INTEGRATOR
Russell King6b237a32006-09-27 17:44:39 +0100228 depends on !MMU
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900229 select CPU_32v5
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900230 select CPU_ABRT_NOMMU
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100231 select CPU_PABRT_NOIFAR
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900232 select CPU_CACHE_VIVT
233 select CPU_CP15_MPU
234 help
235 ARM946E-S is a member of the ARM9E-S family of high-
236 performance, 32-bit system-on-chip processor solutions.
237 The TCM and ARMv5TE 32-bit instruction set is supported.
238
239 Say Y if you want support for the ARM946E-S processor.
240 Otherwise, say N.
241
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242# ARM1020 - needs validating
243config CPU_ARM1020
Russell Kingc7508152008-10-26 10:55:14 +0000244 bool "Support ARM1020T (rev 0) processor" if ARCH_INTEGRATOR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 select CPU_32v5
246 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100247 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 select CPU_CACHE_V4WT
249 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900250 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100251 select CPU_COPY_V4WB if MMU
252 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253 help
254 The ARM1020 is the 32K cached version of the ARM10 processor,
255 with an addition of a floating-point unit.
256
257 Say Y if you want support for the ARM1020 processor.
258 Otherwise, say N.
259
260# ARM1020E - needs validating
261config CPU_ARM1020E
Russell Kingc7508152008-10-26 10:55:14 +0000262 bool "Support ARM1020E processor" if ARCH_INTEGRATOR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 select CPU_32v5
264 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100265 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 select CPU_CACHE_V4WT
267 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900268 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100269 select CPU_COPY_V4WB if MMU
270 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700271 depends on n
272
273# ARM1022E
274config CPU_ARM1022
Russell Kingc7508152008-10-26 10:55:14 +0000275 bool "Support ARM1022E processor" if ARCH_INTEGRATOR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276 select CPU_32v5
277 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100278 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900280 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100281 select CPU_COPY_V4WB if MMU # can probably do better
282 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 help
284 The ARM1022E is an implementation of the ARMv5TE architecture
285 based upon the ARM10 integer core with a 16KiB L1 Harvard cache,
286 embedded trace macrocell, and a floating-point unit.
287
288 Say Y if you want support for the ARM1022E processor.
289 Otherwise, say N.
290
291# ARM1026EJ-S
292config CPU_ARM1026
Russell Kingc7508152008-10-26 10:55:14 +0000293 bool "Support ARM1026EJ-S processor" if ARCH_INTEGRATOR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 select CPU_32v5
295 select CPU_ABRT_EV5T # But need Jazelle, but EV5TJ ignores bit 10
Paul Brook48d79272008-04-18 22:43:07 +0100296 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900298 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100299 select CPU_COPY_V4WB if MMU # can probably do better
300 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301 help
302 The ARM1026EJ-S is an implementation of the ARMv5TEJ architecture
303 based upon the ARM10 integer core.
304
305 Say Y if you want support for the ARM1026EJ-S processor.
306 Otherwise, say N.
307
308# SA110
309config CPU_SA110
Russell Kingc7508152008-10-26 10:55:14 +0000310 bool "Support StrongARM(R) SA-110 processor" if ARCH_RPC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700311 select CPU_32v3 if ARCH_RPC
312 select CPU_32v4 if !ARCH_RPC
313 select CPU_ABRT_EV4
Paul Brook48d79272008-04-18 22:43:07 +0100314 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315 select CPU_CACHE_V4WB
316 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900317 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100318 select CPU_COPY_V4WB if MMU
319 select CPU_TLB_V4WB if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 help
321 The Intel StrongARM(R) SA-110 is a 32-bit microprocessor and
322 is available at five speeds ranging from 100 MHz to 233 MHz.
323 More information is available at
324 <http://developer.intel.com/design/strong/sa110.htm>.
325
326 Say Y if you want support for the SA-110 processor.
327 Otherwise, say N.
328
329# SA1100
330config CPU_SA1100
331 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 select CPU_32v4
333 select CPU_ABRT_EV4
Paul Brook48d79272008-04-18 22:43:07 +0100334 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700335 select CPU_CACHE_V4WB
336 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900337 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100338 select CPU_TLB_V4WB if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
340# XScale
341config CPU_XSCALE
342 bool
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 select CPU_32v5
344 select CPU_ABRT_EV5T
Paul Brook48d79272008-04-18 22:43:07 +0100345 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900347 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100348 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700349
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100350# XScale Core Version 3
351config CPU_XSC3
352 bool
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100353 select CPU_32v5
354 select CPU_ABRT_EV5T
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100355 select CPU_PABRT_NOIFAR
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100356 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900357 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100358 select CPU_TLB_V4WBI if MMU
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100359 select IO_36
360
Eric Miao49cbe782009-01-20 14:15:18 +0800361# Marvell PJ1 (Mohawk)
362config CPU_MOHAWK
363 bool
364 select CPU_32v5
365 select CPU_ABRT_EV5T
366 select CPU_PABRT_NOIFAR
367 select CPU_CACHE_VIVT
368 select CPU_CP15_MMU
369 select CPU_TLB_V4WBI if MMU
370 select CPU_COPY_V4WB if MMU
371
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400372# Feroceon
373config CPU_FEROCEON
374 bool
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400375 select CPU_32v5
376 select CPU_ABRT_EV5T
Paul Brook48d79272008-04-18 22:43:07 +0100377 select CPU_PABRT_NOIFAR
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400378 select CPU_CACHE_VIVT
379 select CPU_CP15_MMU
Lennert Buytenhek0ed15072008-04-24 01:31:45 -0400380 select CPU_COPY_FEROCEON if MMU
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200381 select CPU_TLB_FEROCEON if MMU
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400382
Tzachi Perelsteind910a0a2007-11-06 10:35:40 +0200383config CPU_FEROCEON_OLD_ID
384 bool "Accept early Feroceon cores with an ARM926 ID"
385 depends on CPU_FEROCEON && !CPU_ARM926T
386 default y
387 help
388 This enables the usage of some old Feroceon cores
389 for which the CPU ID is equal to the ARM926 ID.
390 Relevant for Feroceon-1850 and early Feroceon-2850.
391
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392# ARMv6
393config CPU_V6
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100394 bool "Support ARM V6 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX
Linus Torvalds1da177e2005-04-16 15:20:36 -0700395 select CPU_32v6
396 select CPU_ABRT_EV6
Paul Brook48d79272008-04-18 22:43:07 +0100397 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 select CPU_CACHE_V6
399 select CPU_CACHE_VIPT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900400 select CPU_CP15_MMU
Catalin Marinas7b4c9652007-07-20 11:42:57 +0100401 select CPU_HAS_ASID if MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100402 select CPU_COPY_V6 if MMU
403 select CPU_TLB_V6 if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404
Russell King4a5f79e2005-11-03 15:48:21 +0000405# ARMv6k
406config CPU_32v6K
407 bool "Support ARM V6K processor extensions" if !SMP
408 depends on CPU_V6
Quinn Jensen52c543f2007-07-09 22:06:53 +0100409 default y if SMP && !ARCH_MX3
Russell King4a5f79e2005-11-03 15:48:21 +0000410 help
411 Say Y here if your ARMv6 processor supports the 'K' extension.
412 This enables the kernel to use some instructions not present
413 on previous processors, and as such a kernel build with this
414 enabled will not boot on processors with do not support these
415 instructions.
416
Catalin Marinas23688e92007-05-08 22:45:26 +0100417# ARMv7
418config CPU_V7
Colin Tuckley1b504bb2009-05-30 13:56:12 +0100419 bool "Support ARM V7 processor" if ARCH_INTEGRATOR || MACH_REALVIEW_EB || MACH_REALVIEW_PBX
Catalin Marinas23688e92007-05-08 22:45:26 +0100420 select CPU_32v6K
421 select CPU_32v7
422 select CPU_ABRT_EV7
Paul Brook48d79272008-04-18 22:43:07 +0100423 select CPU_PABRT_IFAR
Catalin Marinas23688e92007-05-08 22:45:26 +0100424 select CPU_CACHE_V7
425 select CPU_CACHE_VIPT
426 select CPU_CP15_MMU
Catalin Marinas2eb8c822007-07-20 11:43:02 +0100427 select CPU_HAS_ASID if MMU
Catalin Marinas23688e92007-05-08 22:45:26 +0100428 select CPU_COPY_V6 if MMU
Catalin Marinas2ccdd1e2007-05-18 11:25:31 +0100429 select CPU_TLB_V7 if MMU
Catalin Marinas23688e92007-05-08 22:45:26 +0100430
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431# Figure out what processor architecture version we should be using.
432# This defines the compiler instruction set which depends on the machine type.
433config CPU_32v3
434 bool
Russell King60b6cf62006-06-19 17:36:43 +0100435 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000436 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437
438config CPU_32v4
439 bool
Russell King60b6cf62006-06-19 17:36:43 +0100440 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000441 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100443config CPU_32v4T
444 bool
445 select TLS_REG_EMUL if SMP || !MMU
446 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
447
Linus Torvalds1da177e2005-04-16 15:20:36 -0700448config CPU_32v5
449 bool
Russell King60b6cf62006-06-19 17:36:43 +0100450 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000451 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452
453config CPU_32v6
454 bool
Catalin Marinas367afaf2007-07-20 11:42:51 +0100455 select TLS_REG_EMUL if !CPU_32v6K && !MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700456
Catalin Marinas23688e92007-05-08 22:45:26 +0100457config CPU_32v7
458 bool
459
Linus Torvalds1da177e2005-04-16 15:20:36 -0700460# The abort model
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900461config CPU_ABRT_NOMMU
462 bool
463
Linus Torvalds1da177e2005-04-16 15:20:36 -0700464config CPU_ABRT_EV4
465 bool
466
467config CPU_ABRT_EV4T
468 bool
469
470config CPU_ABRT_LV4T
471 bool
472
473config CPU_ABRT_EV5T
474 bool
475
476config CPU_ABRT_EV5TJ
477 bool
478
479config CPU_ABRT_EV6
480 bool
481
Catalin Marinas23688e92007-05-08 22:45:26 +0100482config CPU_ABRT_EV7
483 bool
484
Paul Brook48d79272008-04-18 22:43:07 +0100485config CPU_PABRT_IFAR
486 bool
487
488config CPU_PABRT_NOIFAR
489 bool
490
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491# The cache model
492config CPU_CACHE_V3
493 bool
494
495config CPU_CACHE_V4
496 bool
497
498config CPU_CACHE_V4WT
499 bool
500
501config CPU_CACHE_V4WB
502 bool
503
504config CPU_CACHE_V6
505 bool
506
Catalin Marinas23688e92007-05-08 22:45:26 +0100507config CPU_CACHE_V7
508 bool
509
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510config CPU_CACHE_VIVT
511 bool
512
513config CPU_CACHE_VIPT
514 bool
515
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200516config CPU_CACHE_FA
517 bool
518
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100519if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520# The copy-page model
521config CPU_COPY_V3
522 bool
523
524config CPU_COPY_V4WT
525 bool
526
527config CPU_COPY_V4WB
528 bool
529
Lennert Buytenhek0ed15072008-04-24 01:31:45 -0400530config CPU_COPY_FEROCEON
531 bool
532
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200533config CPU_COPY_FA
534 bool
535
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536config CPU_COPY_V6
537 bool
538
539# This selects the TLB model
540config CPU_TLB_V3
541 bool
542 help
543 ARM Architecture Version 3 TLB.
544
545config CPU_TLB_V4WT
546 bool
547 help
548 ARM Architecture Version 4 TLB with writethrough cache.
549
550config CPU_TLB_V4WB
551 bool
552 help
553 ARM Architecture Version 4 TLB with writeback cache.
554
555config CPU_TLB_V4WBI
556 bool
557 help
558 ARM Architecture Version 4 TLB with writeback cache and invalidate
559 instruction cache entry.
560
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200561config CPU_TLB_FEROCEON
562 bool
563 help
564 Feroceon TLB (v4wbi with non-outer-cachable page table walks).
565
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200566config CPU_TLB_FA
567 bool
568 help
569 Faraday ARM FA526 architecture, unified TLB with writeback cache
570 and invalidate instruction cache entry. Branch target buffer is
571 also supported.
572
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573config CPU_TLB_V6
574 bool
575
Catalin Marinas2ccdd1e2007-05-18 11:25:31 +0100576config CPU_TLB_V7
577 bool
578
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100579endif
580
Russell King516793c2007-05-17 10:19:23 +0100581config CPU_HAS_ASID
582 bool
583 help
584 This indicates whether the CPU has the ASID register; used to
585 tag TLB and possibly cache entries.
586
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900587config CPU_CP15
588 bool
589 help
590 Processor has the CP15 register.
591
592config CPU_CP15_MMU
593 bool
594 select CPU_CP15
595 help
596 Processor has the CP15 register, which has MMU related registers.
597
598config CPU_CP15_MPU
599 bool
600 select CPU_CP15
601 help
602 Processor has the CP15 register, which has MPU related registers.
603
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100604#
605# CPU supports 36-bit I/O
606#
607config IO_36
608 bool
609
Linus Torvalds1da177e2005-04-16 15:20:36 -0700610comment "Processor Features"
611
612config ARM_THUMB
613 bool "Support Thumb user binaries"
Eric Miao49cbe782009-01-20 14:15:18 +0800614 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 -0700615 default y
616 help
617 Say Y if you want to include kernel support for running user space
618 Thumb binaries.
619
620 The Thumb instruction set is a compressed form of the standard ARM
621 instruction set resulting in smaller binaries at the expense of
622 slightly less efficient code.
623
624 If you don't know what this all is, saying Y is a safe choice.
625
Catalin Marinasd7f864b2008-04-18 22:43:06 +0100626config ARM_THUMBEE
627 bool "Enable ThumbEE CPU extension"
628 depends on CPU_V7
629 help
630 Say Y here if you have a CPU with the ThumbEE extension and code to
631 make use of it. Say N for code that can run on CPUs without ThumbEE.
632
Linus Torvalds1da177e2005-04-16 15:20:36 -0700633config CPU_BIG_ENDIAN
634 bool "Build big-endian kernel"
635 depends on ARCH_SUPPORTS_BIG_ENDIAN
636 help
637 Say Y if you plan on running a kernel in big-endian mode.
638 Note that your board must be properly built and your board
639 port must properly enable any big-endian related features
640 of your chipset/board/processor.
641
Catalin Marinas26584852009-05-30 14:00:18 +0100642config CPU_ENDIAN_BE8
643 bool
644 depends on CPU_BIG_ENDIAN
645 default CPU_V6 || CPU_V7
646 help
647 Support for the BE-8 (big-endian) mode on ARMv6 and ARMv7 processors.
648
649config CPU_ENDIAN_BE32
650 bool
651 depends on CPU_BIG_ENDIAN
652 default !CPU_ENDIAN_BE8
653 help
654 Support for the BE-32 (big-endian) mode on pre-ARMv6 processors.
655
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900656config CPU_HIGH_VECTOR
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100657 depends on !MMU && CPU_CP15 && !CPU_ARM740T
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900658 bool "Select the High exception vector"
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900659 help
660 Say Y here to select high exception vector(0xFFFF0000~).
661 The exception vector can be vary depending on the platform
662 design in nommu mode. If your platform needs to select
663 high exception vector, say Y.
664 Otherwise or if you are unsure, say N, and the low exception
665 vector (0x00000000~) will be used.
666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667config CPU_ICACHE_DISABLE
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900668 bool "Disable I-Cache (I-bit)"
669 depends on CPU_CP15 && !(CPU_ARM610 || CPU_ARM710 || CPU_ARM720T || CPU_ARM740T || CPU_XSCALE || CPU_XSC3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 help
671 Say Y here to disable the processor instruction cache. Unless
672 you have a reason not to or are unsure, say N.
673
674config CPU_DCACHE_DISABLE
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900675 bool "Disable D-Cache (C-bit)"
676 depends on CPU_CP15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677 help
678 Say Y here to disable the processor data cache. Unless
679 you have a reason not to or are unsure, say N.
680
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900681config CPU_DCACHE_SIZE
682 hex
683 depends on CPU_ARM740T || CPU_ARM946E
684 default 0x00001000 if CPU_ARM740T
685 default 0x00002000 # default size for ARM946E-S
686 help
687 Some cores are synthesizable to have various sized cache. For
688 ARM946E-S case, it can vary from 0KB to 1MB.
689 To support such cache operations, it is efficient to know the size
690 before compile time.
691 If your SoC is configured to have a different size, define the value
692 here with proper conditions.
693
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694config CPU_DCACHE_WRITETHROUGH
695 bool "Force write through D-cache"
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200696 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 -0700697 default y if CPU_ARM925T
698 help
699 Say Y here to use the data cache in writethrough mode. Unless you
700 specifically require this or are unsure, say N.
701
702config CPU_CACHE_ROUND_ROBIN
703 bool "Round robin I and D cache replacement algorithm"
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900704 depends on (CPU_ARM926T || CPU_ARM946E || CPU_ARM1020) && (!CPU_ICACHE_DISABLE || !CPU_DCACHE_DISABLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 help
706 Say Y here to use the predictable round-robin cache replacement
707 policy. Unless you specifically require this or are unsure, say N.
708
709config CPU_BPREDICT_DISABLE
710 bool "Disable branch prediction"
Russell King542f8692009-03-26 23:10:11 +0000711 depends on CPU_ARM1020 || CPU_V6 || CPU_MOHAWK || CPU_XSC3 || CPU_V7 || CPU_FA526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712 help
713 Say Y here to disable branch prediction. If unsure, say N.
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100714
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100715config TLS_REG_EMUL
716 bool
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100717 help
Nicolas Pitre70489c82005-05-12 19:27:12 +0100718 An SMP system using a pre-ARMv6 processor (there are apparently
719 a few prototypes like that in existence) and therefore access to
720 that required register must be emulated.
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100721
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100722config HAS_TLS_REG
723 bool
Nicolas Pitre70489c82005-05-12 19:27:12 +0100724 depends on !TLS_REG_EMUL
725 default y if SMP || CPU_32v7
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100726 help
727 This selects support for the CP15 thread register.
Nicolas Pitre70489c82005-05-12 19:27:12 +0100728 It is defined to be available on some ARMv6 processors (including
729 all SMP capable ARMv6's) or later processors. User space may
730 assume directly accessing that register and always obtain the
731 expected value only on ARMv7 and above.
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100732
Nicolas Pitredcef1f62005-06-08 19:00:47 +0100733config NEEDS_SYSCALL_FOR_CMPXCHG
734 bool
Nicolas Pitredcef1f62005-06-08 19:00:47 +0100735 help
736 SMP on a pre-ARMv6 processor? Well OK then.
737 Forget about fast user space cmpxchg support.
738 It is just not possible.
739
Catalin Marinas953233d2007-02-05 14:48:08 +0100740config OUTER_CACHE
741 bool
Catalin Marinas382266a2007-02-05 14:48:19 +0100742
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200743config CACHE_FEROCEON_L2
744 bool "Enable the Feroceon L2 cache controller"
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200745 depends on ARCH_KIRKWOOD || ARCH_MV78XX0
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200746 default y
Catalin Marinas382266a2007-02-05 14:48:19 +0100747 select OUTER_CACHE
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200748 help
749 This option enables the Feroceon L2 cache controller.
750
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300751config CACHE_FEROCEON_L2_WRITETHROUGH
752 bool "Force Feroceon L2 cache write through"
753 depends on CACHE_FEROCEON_L2
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300754 help
755 Say Y here to use the Feroceon L2 cache in writethrough mode.
756 Unless you specifically require this, say N for writeback mode.
757
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758config CACHE_L2X0
Catalin Marinasba927952008-04-18 22:43:17 +0100759 bool "Enable the L2x0 outer cache controller"
Sascha Hauercb882142009-02-08 02:00:50 +0100760 depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \
Alessandro Rubini0b260fd2009-07-02 15:29:43 +0100761 REALVIEW_EB_A9MP || ARCH_MX35 || ARCH_MX31 || MACH_REALVIEW_PBX || ARCH_NOMADIK
Catalin Marinasba927952008-04-18 22:43:17 +0100762 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763 select OUTER_CACHE
Catalin Marinasba927952008-04-18 22:43:17 +0100764 help
765 This option enables the L2x0 PrimeCell.
Eric Miao905a09d2008-06-06 16:34:03 +0800766
767config CACHE_XSC3L2
768 bool "Enable the L2 cache on XScale3"
769 depends on CPU_XSC3
770 default y
771 select OUTER_CACHE
772 help
773 This option enables the L2 cache on XScale3.