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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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010020 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010034 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010052 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010067 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +010086 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100103 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100117 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100138 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100157 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100176 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100194 select CPU_PABRT_LEGACY
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200195 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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100213 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100231 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100247 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100265 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100278 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100296 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100314 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100334 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100345 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100355 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100366 select CPU_PABRT_LEGACY
Eric Miao49cbe782009-01-20 14:15:18 +0800367 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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100377 select CPU_PABRT_LEGACY
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100397 select CPU_PABRT_V6
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100423 select CPU_PABRT_V7
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
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100485config CPU_PABRT_LEGACY
Paul Brook48d79272008-04-18 22:43:07 +0100486 bool
487
Kirill A. Shutemov4fb28472009-09-25 13:39:47 +0100488config CPU_PABRT_V6
489 bool
490
491config CPU_PABRT_V7
Paul Brook48d79272008-04-18 22:43:07 +0100492 bool
493
Linus Torvalds1da177e2005-04-16 15:20:36 -0700494# The cache model
495config CPU_CACHE_V3
496 bool
497
498config CPU_CACHE_V4
499 bool
500
501config CPU_CACHE_V4WT
502 bool
503
504config CPU_CACHE_V4WB
505 bool
506
507config CPU_CACHE_V6
508 bool
509
Catalin Marinas23688e92007-05-08 22:45:26 +0100510config CPU_CACHE_V7
511 bool
512
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513config CPU_CACHE_VIVT
514 bool
515
516config CPU_CACHE_VIPT
517 bool
518
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200519config CPU_CACHE_FA
520 bool
521
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100522if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523# The copy-page model
524config CPU_COPY_V3
525 bool
526
527config CPU_COPY_V4WT
528 bool
529
530config CPU_COPY_V4WB
531 bool
532
Lennert Buytenhek0ed15072008-04-24 01:31:45 -0400533config CPU_COPY_FEROCEON
534 bool
535
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200536config CPU_COPY_FA
537 bool
538
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539config CPU_COPY_V6
540 bool
541
542# This selects the TLB model
543config CPU_TLB_V3
544 bool
545 help
546 ARM Architecture Version 3 TLB.
547
548config CPU_TLB_V4WT
549 bool
550 help
551 ARM Architecture Version 4 TLB with writethrough cache.
552
553config CPU_TLB_V4WB
554 bool
555 help
556 ARM Architecture Version 4 TLB with writeback cache.
557
558config CPU_TLB_V4WBI
559 bool
560 help
561 ARM Architecture Version 4 TLB with writeback cache and invalidate
562 instruction cache entry.
563
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200564config CPU_TLB_FEROCEON
565 bool
566 help
567 Feroceon TLB (v4wbi with non-outer-cachable page table walks).
568
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200569config CPU_TLB_FA
570 bool
571 help
572 Faraday ARM FA526 architecture, unified TLB with writeback cache
573 and invalidate instruction cache entry. Branch target buffer is
574 also supported.
575
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576config CPU_TLB_V6
577 bool
578
Catalin Marinas2ccdd1e2007-05-18 11:25:31 +0100579config CPU_TLB_V7
580 bool
581
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100582endif
583
Russell King516793c2007-05-17 10:19:23 +0100584config CPU_HAS_ASID
585 bool
586 help
587 This indicates whether the CPU has the ASID register; used to
588 tag TLB and possibly cache entries.
589
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900590config CPU_CP15
591 bool
592 help
593 Processor has the CP15 register.
594
595config CPU_CP15_MMU
596 bool
597 select CPU_CP15
598 help
599 Processor has the CP15 register, which has MMU related registers.
600
601config CPU_CP15_MPU
602 bool
603 select CPU_CP15
604 help
605 Processor has the CP15 register, which has MPU related registers.
606
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100607#
608# CPU supports 36-bit I/O
609#
610config IO_36
611 bool
612
Linus Torvalds1da177e2005-04-16 15:20:36 -0700613comment "Processor Features"
614
615config ARM_THUMB
616 bool "Support Thumb user binaries"
Eric Miao49cbe782009-01-20 14:15:18 +0800617 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 -0700618 default y
619 help
620 Say Y if you want to include kernel support for running user space
621 Thumb binaries.
622
623 The Thumb instruction set is a compressed form of the standard ARM
624 instruction set resulting in smaller binaries at the expense of
625 slightly less efficient code.
626
627 If you don't know what this all is, saying Y is a safe choice.
628
Catalin Marinasd7f864b2008-04-18 22:43:06 +0100629config ARM_THUMBEE
630 bool "Enable ThumbEE CPU extension"
631 depends on CPU_V7
632 help
633 Say Y here if you have a CPU with the ThumbEE extension and code to
634 make use of it. Say N for code that can run on CPUs without ThumbEE.
635
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636config CPU_BIG_ENDIAN
637 bool "Build big-endian kernel"
638 depends on ARCH_SUPPORTS_BIG_ENDIAN
639 help
640 Say Y if you plan on running a kernel in big-endian mode.
641 Note that your board must be properly built and your board
642 port must properly enable any big-endian related features
643 of your chipset/board/processor.
644
Catalin Marinas26584852009-05-30 14:00:18 +0100645config CPU_ENDIAN_BE8
646 bool
647 depends on CPU_BIG_ENDIAN
648 default CPU_V6 || CPU_V7
649 help
650 Support for the BE-8 (big-endian) mode on ARMv6 and ARMv7 processors.
651
652config CPU_ENDIAN_BE32
653 bool
654 depends on CPU_BIG_ENDIAN
655 default !CPU_ENDIAN_BE8
656 help
657 Support for the BE-32 (big-endian) mode on pre-ARMv6 processors.
658
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900659config CPU_HIGH_VECTOR
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100660 depends on !MMU && CPU_CP15 && !CPU_ARM740T
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900661 bool "Select the High exception vector"
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900662 help
663 Say Y here to select high exception vector(0xFFFF0000~).
664 The exception vector can be vary depending on the platform
665 design in nommu mode. If your platform needs to select
666 high exception vector, say Y.
667 Otherwise or if you are unsure, say N, and the low exception
668 vector (0x00000000~) will be used.
669
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670config CPU_ICACHE_DISABLE
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900671 bool "Disable I-Cache (I-bit)"
672 depends on CPU_CP15 && !(CPU_ARM610 || CPU_ARM710 || CPU_ARM720T || CPU_ARM740T || CPU_XSCALE || CPU_XSC3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700673 help
674 Say Y here to disable the processor instruction cache. Unless
675 you have a reason not to or are unsure, say N.
676
677config CPU_DCACHE_DISABLE
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900678 bool "Disable D-Cache (C-bit)"
679 depends on CPU_CP15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700680 help
681 Say Y here to disable the processor data cache. Unless
682 you have a reason not to or are unsure, say N.
683
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900684config CPU_DCACHE_SIZE
685 hex
686 depends on CPU_ARM740T || CPU_ARM946E
687 default 0x00001000 if CPU_ARM740T
688 default 0x00002000 # default size for ARM946E-S
689 help
690 Some cores are synthesizable to have various sized cache. For
691 ARM946E-S case, it can vary from 0KB to 1MB.
692 To support such cache operations, it is efficient to know the size
693 before compile time.
694 If your SoC is configured to have a different size, define the value
695 here with proper conditions.
696
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697config CPU_DCACHE_WRITETHROUGH
698 bool "Force write through D-cache"
Paulius Zaleckas28853ac2009-03-25 13:10:01 +0200699 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 -0700700 default y if CPU_ARM925T
701 help
702 Say Y here to use the data cache in writethrough mode. Unless you
703 specifically require this or are unsure, say N.
704
705config CPU_CACHE_ROUND_ROBIN
706 bool "Round robin I and D cache replacement algorithm"
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900707 depends on (CPU_ARM926T || CPU_ARM946E || CPU_ARM1020) && (!CPU_ICACHE_DISABLE || !CPU_DCACHE_DISABLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 help
709 Say Y here to use the predictable round-robin cache replacement
710 policy. Unless you specifically require this or are unsure, say N.
711
712config CPU_BPREDICT_DISABLE
713 bool "Disable branch prediction"
Russell King542f8692009-03-26 23:10:11 +0000714 depends on CPU_ARM1020 || CPU_V6 || CPU_MOHAWK || CPU_XSC3 || CPU_V7 || CPU_FA526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715 help
716 Say Y here to disable branch prediction. If unsure, say N.
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100717
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100718config TLS_REG_EMUL
719 bool
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100720 help
Nicolas Pitre70489c82005-05-12 19:27:12 +0100721 An SMP system using a pre-ARMv6 processor (there are apparently
722 a few prototypes like that in existence) and therefore access to
723 that required register must be emulated.
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100724
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100725config HAS_TLS_REG
726 bool
Nicolas Pitre70489c82005-05-12 19:27:12 +0100727 depends on !TLS_REG_EMUL
728 default y if SMP || CPU_32v7
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100729 help
730 This selects support for the CP15 thread register.
Nicolas Pitre70489c82005-05-12 19:27:12 +0100731 It is defined to be available on some ARMv6 processors (including
732 all SMP capable ARMv6's) or later processors. User space may
733 assume directly accessing that register and always obtain the
734 expected value only on ARMv7 and above.
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100735
Nicolas Pitredcef1f62005-06-08 19:00:47 +0100736config NEEDS_SYSCALL_FOR_CMPXCHG
737 bool
Nicolas Pitredcef1f62005-06-08 19:00:47 +0100738 help
739 SMP on a pre-ARMv6 processor? Well OK then.
740 Forget about fast user space cmpxchg support.
741 It is just not possible.
742
Catalin Marinas953233d2007-02-05 14:48:08 +0100743config OUTER_CACHE
744 bool
Catalin Marinas382266a2007-02-05 14:48:19 +0100745
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200746config CACHE_FEROCEON_L2
747 bool "Enable the Feroceon L2 cache controller"
Stanislav Samsonov794d15b2008-06-22 22:45:10 +0200748 depends on ARCH_KIRKWOOD || ARCH_MV78XX0
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200749 default y
Catalin Marinas382266a2007-02-05 14:48:19 +0100750 select OUTER_CACHE
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200751 help
752 This option enables the Feroceon L2 cache controller.
753
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300754config CACHE_FEROCEON_L2_WRITETHROUGH
755 bool "Force Feroceon L2 cache write through"
756 depends on CACHE_FEROCEON_L2
Ronen Shitrit4360bb42008-09-23 15:28:10 +0300757 help
758 Say Y here to use the Feroceon L2 cache in writethrough mode.
759 Unless you specifically require this, say N for writeback mode.
760
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761config CACHE_L2X0
Catalin Marinasba927952008-04-18 22:43:17 +0100762 bool "Enable the L2x0 outer cache controller"
Sascha Hauercb882142009-02-08 02:00:50 +0100763 depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \
Alessandro Rubini0b260fd2009-07-02 15:29:43 +0100764 REALVIEW_EB_A9MP || ARCH_MX35 || ARCH_MX31 || MACH_REALVIEW_PBX || ARCH_NOMADIK
Catalin Marinasba927952008-04-18 22:43:17 +0100765 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766 select OUTER_CACHE
Catalin Marinasba927952008-04-18 22:43:17 +0100767 help
768 This option enables the L2x0 PrimeCell.
Eric Miao905a09d2008-06-06 16:34:03 +0800769
770config CACHE_XSC3L2
771 bool "Enable the L2 cache on XScale3"
772 depends on CPU_XSC3
773 default y
774 select OUTER_CACHE
775 help
776 This option enables the L2 cache on XScale3.
Kirill A. Shutemov910a17e2009-09-15 10:23:53 +0100777
778config ARM_L1_CACHE_SHIFT
779 int
780 default 6 if ARCH_OMAP3
781 default 5