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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
13 bool "Support ARM610 processor"
14 depends on ARCH_RPC
15 select CPU_32v3
16 select CPU_CACHE_V3
17 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090018 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010019 select CPU_COPY_V3 if MMU
20 select CPU_TLB_V3 if MMU
Paul Brook48d79272008-04-18 22:43:07 +010021 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 help
23 The ARM610 is the successor to the ARM3 processor
24 and was produced by VLSI Technology Inc.
25
26 Say Y if you want support for the ARM610 processor.
27 Otherwise, say N.
28
Hyok S. Choi07e0da72006-09-26 17:37:36 +090029# ARM7TDMI
30config CPU_ARM7TDMI
31 bool "Support ARM7TDMI processor"
Russell King6b237a32006-09-27 17:44:39 +010032 depends on !MMU
Hyok S. Choi07e0da72006-09-26 17:37:36 +090033 select CPU_32v4T
34 select CPU_ABRT_LV4T
Catalin Marinas4a1fd552008-04-21 18:42:04 +010035 select CPU_PABRT_NOIFAR
Hyok S. Choi07e0da72006-09-26 17:37:36 +090036 select CPU_CACHE_V4
37 help
38 A 32-bit RISC microprocessor based on the ARM7 processor core
39 which has no memory control unit and cache.
40
41 Say Y if you want support for the ARM7TDMI processor.
42 Otherwise, say N.
43
Linus Torvalds1da177e2005-04-16 15:20:36 -070044# ARM710
45config CPU_ARM710
46 bool "Support ARM710 processor" if !ARCH_CLPS7500 && ARCH_RPC
47 default y if ARCH_CLPS7500
48 select CPU_32v3
49 select CPU_CACHE_V3
50 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090051 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010052 select CPU_COPY_V3 if MMU
53 select CPU_TLB_V3 if MMU
Paul Brook48d79272008-04-18 22:43:07 +010054 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 help
56 A 32-bit RISC microprocessor based on the ARM7 processor core
57 designed by Advanced RISC Machines Ltd. The ARM710 is the
58 successor to the ARM610 processor. It was released in
59 July 1994 by VLSI Technology Inc.
60
61 Say Y if you want support for the ARM710 processor.
62 Otherwise, say N.
63
64# ARM720T
65config CPU_ARM720T
66 bool "Support ARM720T processor" if !ARCH_CLPS711X && !ARCH_L7200 && !ARCH_CDB89712 && ARCH_INTEGRATOR
67 default y if ARCH_CLPS711X || ARCH_L7200 || ARCH_CDB89712 || ARCH_H720X
Lennert Buytenhek260e98e2006-08-28 12:51:20 +010068 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 select CPU_ABRT_LV4T
Paul Brook48d79272008-04-18 22:43:07 +010070 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 select CPU_CACHE_V4
72 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +090073 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +010074 select CPU_COPY_V4WT if MMU
75 select CPU_TLB_V4WT if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 help
77 A 32-bit RISC processor with 8kByte Cache, Write Buffer and
78 MMU built around an ARM7TDMI core.
79
80 Say Y if you want support for the ARM720T processor.
81 Otherwise, say N.
82
Hyok S. Choib731c312006-09-26 17:37:50 +090083# ARM740T
84config CPU_ARM740T
85 bool "Support ARM740T processor" if ARCH_INTEGRATOR
Russell King6b237a32006-09-27 17:44:39 +010086 depends on !MMU
Hyok S. Choib731c312006-09-26 17:37:50 +090087 select CPU_32v4T
88 select CPU_ABRT_LV4T
Catalin Marinas4a1fd552008-04-21 18:42:04 +010089 select CPU_PABRT_NOIFAR
Hyok S. Choib731c312006-09-26 17:37:50 +090090 select CPU_CACHE_V3 # although the core is v4t
91 select CPU_CP15_MPU
92 help
93 A 32-bit RISC processor with 8KB cache or 4KB variants,
94 write buffer and MPU(Protection Unit) built around
95 an ARM7TDMI core.
96
97 Say Y if you want support for the ARM740T processor.
98 Otherwise, say N.
99
Hyok S. Choi43f5f012006-09-26 17:38:05 +0900100# ARM9TDMI
101config CPU_ARM9TDMI
102 bool "Support ARM9TDMI processor"
Russell King6b237a32006-09-27 17:44:39 +0100103 depends on !MMU
Hyok S. Choi43f5f012006-09-26 17:38:05 +0900104 select CPU_32v4T
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900105 select CPU_ABRT_NOMMU
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100106 select CPU_PABRT_NOIFAR
Hyok S. Choi43f5f012006-09-26 17:38:05 +0900107 select CPU_CACHE_V4
108 help
109 A 32-bit RISC microprocessor based on the ARM9 processor core
110 which has no memory control unit and cache.
111
112 Say Y if you want support for the ARM9TDMI processor.
113 Otherwise, say N.
114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115# ARM920T
116config CPU_ARM920T
Ben Dooks3434d9d2006-06-24 21:21:28 +0100117 bool "Support ARM920T processor"
118 depends on ARCH_EP93XX || ARCH_INTEGRATOR || CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_IMX || ARCH_AAEC2000 || ARCH_AT91RM9200
119 default y if CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_AT91RM9200
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100120 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100122 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123 select CPU_CACHE_V4WT
124 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900125 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100126 select CPU_COPY_V4WB if MMU
127 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128 help
129 The ARM920T is licensed to be produced by numerous vendors,
130 and is used in the Maverick EP9312 and the Samsung S3C2410.
131
132 More information on the Maverick EP9312 at
133 <http://linuxdevices.com/products/PD2382866068.html>.
134
135 Say Y if you want support for the ARM920T processor.
136 Otherwise, say N.
137
138# ARM922T
139config CPU_ARM922T
140 bool "Support ARM922T processor" if ARCH_INTEGRATOR
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100141 depends on ARCH_LH7A40X || ARCH_INTEGRATOR || ARCH_KS8695
142 default y if ARCH_LH7A40X || ARCH_KS8695
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100143 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100145 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 select CPU_CACHE_V4WT
147 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900148 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100149 select CPU_COPY_V4WB if MMU
150 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 help
152 The ARM922T is a version of the ARM920T, but with smaller
153 instruction and data caches. It is used in Altera's
Andrew Victorc53c9cf2007-05-11 21:01:28 +0100154 Excalibur XA device family and Micrel's KS8695 Centaur.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
156 Say Y if you want support for the ARM922T processor.
157 Otherwise, say N.
158
159# ARM925T
160config CPU_ARM925T
Tony Lindgrenb288f752005-07-10 19:58:08 +0100161 bool "Support ARM925T processor" if ARCH_OMAP1
Tony Lindgren3179a012005-11-10 14:26:48 +0000162 depends on ARCH_OMAP15XX
163 default y if ARCH_OMAP15XX
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100164 select CPU_32v4T
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100166 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167 select CPU_CACHE_V4WT
168 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900169 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100170 select CPU_COPY_V4WB if MMU
171 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700172 help
173 The ARM925T is a mix between the ARM920T and ARM926T, but with
174 different instruction and data caches. It is used in TI's OMAP
175 device family.
176
177 Say Y if you want support for the ARM925T processor.
178 Otherwise, say N.
179
180# ARM926T
181config CPU_ARM926T
Catalin Marinas8ad68bb2005-10-31 14:25:02 +0000182 bool "Support ARM926T processor"
Andrew Victor2b3b3512008-01-24 15:10:39 +0100183 depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI
184 default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 select CPU_32v5
186 select CPU_ABRT_EV5TJ
Paul Brook48d79272008-04-18 22:43:07 +0100187 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900189 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100190 select CPU_COPY_V4WB if MMU
191 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192 help
193 This is a variant of the ARM920. It has slightly different
194 instruction sequences for cache and TLB operations. Curiously,
195 there is no documentation on it at the ARM corporate website.
196
197 Say Y if you want support for the ARM926T 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
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100206 select CPU_PABRT_NOIFAR
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
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100224 select CPU_PABRT_NOIFAR
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
237 bool "Support ARM1020T (rev 0) processor"
238 depends on ARCH_INTEGRATOR
239 select CPU_32v5
240 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100241 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 select CPU_CACHE_V4WT
243 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900244 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100245 select CPU_COPY_V4WB if MMU
246 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 help
248 The ARM1020 is the 32K cached version of the ARM10 processor,
249 with an addition of a floating-point unit.
250
251 Say Y if you want support for the ARM1020 processor.
252 Otherwise, say N.
253
254# ARM1020E - needs validating
255config CPU_ARM1020E
256 bool "Support ARM1020E processor"
257 depends on ARCH_INTEGRATOR
258 select CPU_32v5
259 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100260 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 select CPU_CACHE_V4WT
262 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900263 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100264 select CPU_COPY_V4WB if MMU
265 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266 depends on n
267
268# ARM1022E
269config CPU_ARM1022
270 bool "Support ARM1022E processor"
271 depends on ARCH_INTEGRATOR
272 select CPU_32v5
273 select CPU_ABRT_EV4T
Paul Brook48d79272008-04-18 22:43:07 +0100274 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900276 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100277 select CPU_COPY_V4WB if MMU # can probably do better
278 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279 help
280 The ARM1022E is an implementation of the ARMv5TE architecture
281 based upon the ARM10 integer core with a 16KiB L1 Harvard cache,
282 embedded trace macrocell, and a floating-point unit.
283
284 Say Y if you want support for the ARM1022E processor.
285 Otherwise, say N.
286
287# ARM1026EJ-S
288config CPU_ARM1026
289 bool "Support ARM1026EJ-S processor"
290 depends on ARCH_INTEGRATOR
291 select CPU_32v5
292 select CPU_ABRT_EV5T # But need Jazelle, but EV5TJ ignores bit 10
Paul Brook48d79272008-04-18 22:43:07 +0100293 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900295 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100296 select CPU_COPY_V4WB if MMU # can probably do better
297 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298 help
299 The ARM1026EJ-S is an implementation of the ARMv5TEJ architecture
300 based upon the ARM10 integer core.
301
302 Say Y if you want support for the ARM1026EJ-S processor.
303 Otherwise, say N.
304
305# SA110
306config CPU_SA110
307 bool "Support StrongARM(R) SA-110 processor" if !ARCH_EBSA110 && !FOOTBRIDGE && !ARCH_TBOX && !ARCH_SHARK && !ARCH_NEXUSPCI && ARCH_RPC
308 default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_TBOX || ARCH_SHARK || ARCH_NEXUSPCI
309 select CPU_32v3 if ARCH_RPC
310 select CPU_32v4 if !ARCH_RPC
311 select CPU_ABRT_EV4
Paul Brook48d79272008-04-18 22:43:07 +0100312 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 select CPU_CACHE_V4WB
314 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900315 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100316 select CPU_COPY_V4WB if MMU
317 select CPU_TLB_V4WB if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 help
319 The Intel StrongARM(R) SA-110 is a 32-bit microprocessor and
320 is available at five speeds ranging from 100 MHz to 233 MHz.
321 More information is available at
322 <http://developer.intel.com/design/strong/sa110.htm>.
323
324 Say Y if you want support for the SA-110 processor.
325 Otherwise, say N.
326
327# SA1100
328config CPU_SA1100
329 bool
330 depends on ARCH_SA1100
331 default y
332 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
Russell Kingfa0b6252007-09-19 09:38:32 +0100343 depends on ARCH_IOP32X || ARCH_IOP33X || PXA25x || PXA27x || ARCH_IXP4XX || ARCH_IXP2000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700344 default y
345 select CPU_32v5
346 select CPU_ABRT_EV5T
Paul Brook48d79272008-04-18 22:43:07 +0100347 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700348 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900349 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100350 select CPU_TLB_V4WBI if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100352# XScale Core Version 3
353config CPU_XSC3
354 bool
eric miao2c8086a2007-09-11 19:13:17 -0700355 depends on ARCH_IXP23XX || ARCH_IOP13XX || PXA3xx
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100356 default y
357 select CPU_32v5
358 select CPU_ABRT_EV5T
Catalin Marinas4a1fd552008-04-21 18:42:04 +0100359 select CPU_PABRT_NOIFAR
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100360 select CPU_CACHE_VIVT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900361 select CPU_CP15_MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100362 select CPU_TLB_V4WBI if MMU
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100363 select IO_36
364
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400365# Feroceon
366config CPU_FEROCEON
367 bool
Lennert Buytenhek777f9be2008-06-22 22:45:02 +0200368 depends on ARCH_ORION5X || ARCH_LOKI
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400369 default y
370 select CPU_32v5
371 select CPU_ABRT_EV5T
Paul Brook48d79272008-04-18 22:43:07 +0100372 select CPU_PABRT_NOIFAR
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400373 select CPU_CACHE_VIVT
374 select CPU_CP15_MMU
Lennert Buytenhek0ed15072008-04-24 01:31:45 -0400375 select CPU_COPY_FEROCEON if MMU
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200376 select CPU_TLB_FEROCEON if MMU
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400377
Tzachi Perelsteind910a0a2007-11-06 10:35:40 +0200378config CPU_FEROCEON_OLD_ID
379 bool "Accept early Feroceon cores with an ARM926 ID"
380 depends on CPU_FEROCEON && !CPU_ARM926T
381 default y
382 help
383 This enables the usage of some old Feroceon cores
384 for which the CPU ID is equal to the ARM926 ID.
385 Relevant for Feroceon-1850 and early Feroceon-2850.
386
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387# ARMv6
388config CPU_V6
389 bool "Support ARM V6 processor"
Bahadir Balbanbc02c582008-04-18 22:43:16 +0100390 depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB || ARCH_OMAP2 || ARCH_MX3 || ARCH_MSM7X00A || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176
Quinn Jensen52c543f2007-07-09 22:06:53 +0100391 default y if ARCH_MX3
Brian Swetland30421022007-11-26 04:11:43 -0800392 default y if ARCH_MSM7X00A
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 select CPU_32v6
394 select CPU_ABRT_EV6
Paul Brook48d79272008-04-18 22:43:07 +0100395 select CPU_PABRT_NOIFAR
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396 select CPU_CACHE_V6
397 select CPU_CACHE_VIPT
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900398 select CPU_CP15_MMU
Catalin Marinas7b4c9652007-07-20 11:42:57 +0100399 select CPU_HAS_ASID if MMU
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100400 select CPU_COPY_V6 if MMU
401 select CPU_TLB_V6 if MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402
Russell King4a5f79e2005-11-03 15:48:21 +0000403# ARMv6k
404config CPU_32v6K
405 bool "Support ARM V6K processor extensions" if !SMP
406 depends on CPU_V6
Quinn Jensen52c543f2007-07-09 22:06:53 +0100407 default y if SMP && !ARCH_MX3
Russell King4a5f79e2005-11-03 15:48:21 +0000408 help
409 Say Y here if your ARMv6 processor supports the 'K' extension.
410 This enables the kernel to use some instructions not present
411 on previous processors, and as such a kernel build with this
412 enabled will not boot on processors with do not support these
413 instructions.
414
Catalin Marinas23688e92007-05-08 22:45:26 +0100415# ARMv7
416config CPU_V7
417 bool "Support ARM V7 processor"
Catalin Marinas41267e22008-04-18 22:43:12 +0100418 depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB
Catalin Marinas23688e92007-05-08 22:45:26 +0100419 select CPU_32v6K
420 select CPU_32v7
421 select CPU_ABRT_EV7
Paul Brook48d79272008-04-18 22:43:07 +0100422 select CPU_PABRT_IFAR
Catalin Marinas23688e92007-05-08 22:45:26 +0100423 select CPU_CACHE_V7
424 select CPU_CACHE_VIPT
425 select CPU_CP15_MMU
Catalin Marinas2eb8c822007-07-20 11:43:02 +0100426 select CPU_HAS_ASID if MMU
Catalin Marinas23688e92007-05-08 22:45:26 +0100427 select CPU_COPY_V6 if MMU
Catalin Marinas2ccdd1e2007-05-18 11:25:31 +0100428 select CPU_TLB_V7 if MMU
Catalin Marinas23688e92007-05-08 22:45:26 +0100429
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430# Figure out what processor architecture version we should be using.
431# This defines the compiler instruction set which depends on the machine type.
432config CPU_32v3
433 bool
Russell King60b6cf62006-06-19 17:36:43 +0100434 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000435 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436
437config CPU_32v4
438 bool
Russell King60b6cf62006-06-19 17:36:43 +0100439 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000440 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441
Lennert Buytenhek260e98e2006-08-28 12:51:20 +0100442config CPU_32v4T
443 bool
444 select TLS_REG_EMUL if SMP || !MMU
445 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
446
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447config CPU_32v5
448 bool
Russell King60b6cf62006-06-19 17:36:43 +0100449 select TLS_REG_EMUL if SMP || !MMU
Russell King48fa14f2006-03-16 14:52:33 +0000450 select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
Linus Torvalds1da177e2005-04-16 15:20:36 -0700451
452config CPU_32v6
453 bool
Catalin Marinas367afaf2007-07-20 11:42:51 +0100454 select TLS_REG_EMUL if !CPU_32v6K && !MMU
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455
Catalin Marinas23688e92007-05-08 22:45:26 +0100456config CPU_32v7
457 bool
458
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459# The abort model
Hyok S. Choi0f45d7f2006-09-28 21:46:16 +0900460config CPU_ABRT_NOMMU
461 bool
462
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463config CPU_ABRT_EV4
464 bool
465
466config CPU_ABRT_EV4T
467 bool
468
469config CPU_ABRT_LV4T
470 bool
471
472config CPU_ABRT_EV5T
473 bool
474
475config CPU_ABRT_EV5TJ
476 bool
477
478config CPU_ABRT_EV6
479 bool
480
Catalin Marinas23688e92007-05-08 22:45:26 +0100481config CPU_ABRT_EV7
482 bool
483
Paul Brook48d79272008-04-18 22:43:07 +0100484config CPU_PABRT_IFAR
485 bool
486
487config CPU_PABRT_NOIFAR
488 bool
489
Linus Torvalds1da177e2005-04-16 15:20:36 -0700490# The cache model
491config CPU_CACHE_V3
492 bool
493
494config CPU_CACHE_V4
495 bool
496
497config CPU_CACHE_V4WT
498 bool
499
500config CPU_CACHE_V4WB
501 bool
502
503config CPU_CACHE_V6
504 bool
505
Catalin Marinas23688e92007-05-08 22:45:26 +0100506config CPU_CACHE_V7
507 bool
508
Linus Torvalds1da177e2005-04-16 15:20:36 -0700509config CPU_CACHE_VIVT
510 bool
511
512config CPU_CACHE_VIPT
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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700529config CPU_COPY_V6
530 bool
531
532# This selects the TLB model
533config CPU_TLB_V3
534 bool
535 help
536 ARM Architecture Version 3 TLB.
537
538config CPU_TLB_V4WT
539 bool
540 help
541 ARM Architecture Version 4 TLB with writethrough cache.
542
543config CPU_TLB_V4WB
544 bool
545 help
546 ARM Architecture Version 4 TLB with writeback cache.
547
548config CPU_TLB_V4WBI
549 bool
550 help
551 ARM Architecture Version 4 TLB with writeback cache and invalidate
552 instruction cache entry.
553
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200554config CPU_TLB_FEROCEON
555 bool
556 help
557 Feroceon TLB (v4wbi with non-outer-cachable page table walks).
558
Linus Torvalds1da177e2005-04-16 15:20:36 -0700559config CPU_TLB_V6
560 bool
561
Catalin Marinas2ccdd1e2007-05-18 11:25:31 +0100562config CPU_TLB_V7
563 bool
564
Hyok S. Choif9c21a62006-06-21 22:26:29 +0100565endif
566
Russell King516793c2007-05-17 10:19:23 +0100567config CPU_HAS_ASID
568 bool
569 help
570 This indicates whether the CPU has the ASID register; used to
571 tag TLB and possibly cache entries.
572
Hyok S. Choifefdaa02006-09-26 17:36:37 +0900573config CPU_CP15
574 bool
575 help
576 Processor has the CP15 register.
577
578config CPU_CP15_MMU
579 bool
580 select CPU_CP15
581 help
582 Processor has the CP15 register, which has MMU related registers.
583
584config CPU_CP15_MPU
585 bool
586 select CPU_CP15
587 help
588 Processor has the CP15 register, which has MPU related registers.
589
Lennert Buytenhek23bdf862006-03-28 21:00:40 +0100590#
591# CPU supports 36-bit I/O
592#
593config IO_36
594 bool
595
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596comment "Processor Features"
597
598config ARM_THUMB
599 bool "Support Thumb user binaries"
Assaf Hoffmane50d6402007-10-23 15:14:41 -0400600 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_V6 || CPU_V7 || CPU_FEROCEON
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601 default y
602 help
603 Say Y if you want to include kernel support for running user space
604 Thumb binaries.
605
606 The Thumb instruction set is a compressed form of the standard ARM
607 instruction set resulting in smaller binaries at the expense of
608 slightly less efficient code.
609
610 If you don't know what this all is, saying Y is a safe choice.
611
Catalin Marinasd7f864b2008-04-18 22:43:06 +0100612config ARM_THUMBEE
613 bool "Enable ThumbEE CPU extension"
614 depends on CPU_V7
615 help
616 Say Y here if you have a CPU with the ThumbEE extension and code to
617 make use of it. Say N for code that can run on CPUs without ThumbEE.
618
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619config CPU_BIG_ENDIAN
620 bool "Build big-endian kernel"
621 depends on ARCH_SUPPORTS_BIG_ENDIAN
622 help
623 Say Y if you plan on running a kernel in big-endian mode.
624 Note that your board must be properly built and your board
625 port must properly enable any big-endian related features
626 of your chipset/board/processor.
627
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900628config CPU_HIGH_VECTOR
Robert P. J. Day6340aa62007-02-17 19:05:24 +0100629 depends on !MMU && CPU_CP15 && !CPU_ARM740T
Hyok S. Choi6afd6fa2006-09-28 21:46:34 +0900630 bool "Select the High exception vector"
631 default n
632 help
633 Say Y here to select high exception vector(0xFFFF0000~).
634 The exception vector can be vary depending on the platform
635 design in nommu mode. If your platform needs to select
636 high exception vector, say Y.
637 Otherwise or if you are unsure, say N, and the low exception
638 vector (0x00000000~) will be used.
639
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640config CPU_ICACHE_DISABLE
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900641 bool "Disable I-Cache (I-bit)"
642 depends on CPU_CP15 && !(CPU_ARM610 || CPU_ARM710 || CPU_ARM720T || CPU_ARM740T || CPU_XSCALE || CPU_XSC3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643 help
644 Say Y here to disable the processor instruction cache. Unless
645 you have a reason not to or are unsure, say N.
646
647config CPU_DCACHE_DISABLE
Hyok S. Choif12d0d72006-09-26 17:36:37 +0900648 bool "Disable D-Cache (C-bit)"
649 depends on CPU_CP15
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650 help
651 Say Y here to disable the processor data cache. Unless
652 you have a reason not to or are unsure, say N.
653
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900654config CPU_DCACHE_SIZE
655 hex
656 depends on CPU_ARM740T || CPU_ARM946E
657 default 0x00001000 if CPU_ARM740T
658 default 0x00002000 # default size for ARM946E-S
659 help
660 Some cores are synthesizable to have various sized cache. For
661 ARM946E-S case, it can vary from 0KB to 1MB.
662 To support such cache operations, it is efficient to know the size
663 before compile time.
664 If your SoC is configured to have a different size, define the value
665 here with proper conditions.
666
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667config CPU_DCACHE_WRITETHROUGH
668 bool "Force write through D-cache"
Lennert Buytenheka7039bd2008-04-24 01:31:46 -0400669 depends on (CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020) && !CPU_DCACHE_DISABLE
Linus Torvalds1da177e2005-04-16 15:20:36 -0700670 default y if CPU_ARM925T
671 help
672 Say Y here to use the data cache in writethrough mode. Unless you
673 specifically require this or are unsure, say N.
674
675config CPU_CACHE_ROUND_ROBIN
676 bool "Round robin I and D cache replacement algorithm"
Hyok S. Choif37f46e2006-09-26 17:38:32 +0900677 depends on (CPU_ARM926T || CPU_ARM946E || CPU_ARM1020) && (!CPU_ICACHE_DISABLE || !CPU_DCACHE_DISABLE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 help
679 Say Y here to use the predictable round-robin cache replacement
680 policy. Unless you specifically require this or are unsure, say N.
681
682config CPU_BPREDICT_DISABLE
683 bool "Disable branch prediction"
Catalin Marinas23688e92007-05-08 22:45:26 +0100684 depends on CPU_ARM1020 || CPU_V6 || CPU_XSC3 || CPU_V7
Linus Torvalds1da177e2005-04-16 15:20:36 -0700685 help
686 Say Y here to disable branch prediction. If unsure, say N.
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100687
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100688config TLS_REG_EMUL
689 bool
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100690 help
Nicolas Pitre70489c82005-05-12 19:27:12 +0100691 An SMP system using a pre-ARMv6 processor (there are apparently
692 a few prototypes like that in existence) and therefore access to
693 that required register must be emulated.
Nicolas Pitre4b0e07a2005-05-05 23:24:45 +0100694
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100695config HAS_TLS_REG
696 bool
Nicolas Pitre70489c82005-05-12 19:27:12 +0100697 depends on !TLS_REG_EMUL
698 default y if SMP || CPU_32v7
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100699 help
700 This selects support for the CP15 thread register.
Nicolas Pitre70489c82005-05-12 19:27:12 +0100701 It is defined to be available on some ARMv6 processors (including
702 all SMP capable ARMv6's) or later processors. User space may
703 assume directly accessing that register and always obtain the
704 expected value only on ARMv7 and above.
Nicolas Pitre2d2669b2005-04-29 22:08:33 +0100705
Nicolas Pitredcef1f62005-06-08 19:00:47 +0100706config NEEDS_SYSCALL_FOR_CMPXCHG
707 bool
Nicolas Pitredcef1f62005-06-08 19:00:47 +0100708 help
709 SMP on a pre-ARMv6 processor? Well OK then.
710 Forget about fast user space cmpxchg support.
711 It is just not possible.
712
Catalin Marinas953233d2007-02-05 14:48:08 +0100713config OUTER_CACHE
714 bool
715 default n
Catalin Marinas382266a2007-02-05 14:48:19 +0100716
Lennert Buytenhek99c6dc12008-06-22 22:45:04 +0200717config CACHE_FEROCEON_L2
718 bool "Enable the Feroceon L2 cache controller"
719 depends on FOOBAR
720 default y
721 select OUTER_CACHE
722 help
723 This option enables the Feroceon L2 cache controller.
724
Catalin Marinas382266a2007-02-05 14:48:19 +0100725config CACHE_L2X0
Catalin Marinasba927952008-04-18 22:43:17 +0100726 bool "Enable the L2x0 outer cache controller"
727 depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176
728 default y
Catalin Marinas382266a2007-02-05 14:48:19 +0100729 select OUTER_CACHE
Catalin Marinasba927952008-04-18 22:43:17 +0100730 help
731 This option enables the L2x0 PrimeCell.