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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# For a description of the syntax of this configuration file,
3# see Documentation/kbuild/kconfig-language.txt.
4#
5config FRV
6 bool
7 default y
Sam Ravnborgec7748b2008-02-09 10:46:40 +01008 select HAVE_IDE
Linus Torvalds1da177e2005-04-16 15:20:36 -07009
Christoph Lameter66701b12007-02-10 01:43:09 -080010config ZONE_DMA
11 bool
12 default y
13
Linus Torvalds1da177e2005-04-16 15:20:36 -070014config RWSEM_GENERIC_SPINLOCK
15 bool
16 default y
17
18config RWSEM_XCHGADD_ALGORITHM
19 bool
20
21config GENERIC_FIND_NEXT_BIT
22 bool
23 default y
24
Akinobu Mita1f6d7a92006-03-26 01:39:22 -080025config GENERIC_HWEIGHT
26 bool
27 default y
28
Linus Torvalds1da177e2005-04-16 15:20:36 -070029config GENERIC_CALIBRATE_DELAY
30 bool
31 default n
32
33config GENERIC_HARDIRQS
34 bool
David Howells1bcbba32006-09-25 23:32:04 -070035 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -070036
David Howellsaf8c65b2006-09-25 23:32:07 -070037config GENERIC_HARDIRQS_NO__DO_IRQ
38 bool
39 default y
40
john stultzebd6c172006-09-06 11:02:45 +010041config GENERIC_TIME
42 bool
43 default y
44
Ingo Molnar06027bd2006-02-14 13:53:15 -080045config TIME_LOW_RES
46 bool
47 default y
48
Christoph Lameter8defab32007-05-09 02:32:48 -070049config QUICKLIST
50 bool
51 default y
52
David Howellsf0d1b0b2006-12-08 02:37:49 -080053config ARCH_HAS_ILOG2_U32
54 bool
55 default y
56
57config ARCH_HAS_ILOG2_U64
58 bool
59 default y
60
H. Peter Anvinbdc80782008-02-08 04:21:26 -080061config HZ
62 int
63 default 1000
64
Linus Torvalds1da177e2005-04-16 15:20:36 -070065mainmenu "Fujitsu FR-V Kernel Configuration"
66
67source "init/Kconfig"
68
Matt Helsleydc52ddc2008-10-18 20:27:21 -070069source "kernel/Kconfig.freezer"
70
Linus Torvalds1da177e2005-04-16 15:20:36 -070071
72menu "Fujitsu FR-V system setup"
73
74config MMU
75 bool "MMU support"
76 help
77 This options switches on and off support for the FR-V MMU
78 (effectively switching between vmlinux and uClinux). Not all FR-V
79 CPUs support this. Currently only the FR451 has a sufficiently
80 featured MMU.
81
82config FRV_OUTOFLINE_ATOMIC_OPS
83 bool "Out-of-line the FRV atomic operations"
84 default n
85 help
86 Setting this option causes the FR-V atomic operations to be mostly
87 implemented out-of-line.
88
Adrian Bunk0868ff72008-02-03 15:54:28 +020089 See Documentation/frv/atomic-ops.txt for more information.
Linus Torvalds1da177e2005-04-16 15:20:36 -070090
91config HIGHMEM
92 bool "High memory support"
93 depends on MMU
94 default y
95 help
96 If you wish to use more than 256MB of memory with your MMU based
97 system, you will need to select this option. The kernel can only see
98 the memory between 0xC0000000 and 0xD0000000 directly... everything
99 else must be kmapped.
100
101 The arch is, however, capable of supporting up to 3GB of SDRAM.
102
103config HIGHPTE
104 bool "Allocate page tables in highmem"
105 depends on HIGHMEM
106 default y
107 help
108 The VM uses one page of memory for each page table. For systems
109 with a lot of RAM, this can be wasteful of precious low memory.
110 Setting this option will put user-space page tables in high memory.
111
Dave Hansen3f22ab22005-06-23 00:07:43 -0700112source "mm/Kconfig"
113
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114choice
115 prompt "uClinux kernel load address"
116 depends on !MMU
117 default UCPAGE_OFFSET_C0000000
118 help
119 This option sets the base address for the uClinux kernel. The kernel
120 will rearrange the SDRAM layout to start at this address, and move
121 itself to start there. It must be greater than 0, and it must be
122 sufficiently less than 0xE0000000 that the SDRAM does not intersect
123 the I/O region.
124
125 The base address must also be aligned such that the SDRAM controller
126 can decode it. For instance, a 512MB SDRAM bank must be 512MB aligned.
127
128config UCPAGE_OFFSET_20000000
129 bool "0x20000000"
130
131config UCPAGE_OFFSET_40000000
132 bool "0x40000000"
133
134config UCPAGE_OFFSET_60000000
135 bool "0x60000000"
136
137config UCPAGE_OFFSET_80000000
138 bool "0x80000000"
139
140config UCPAGE_OFFSET_A0000000
141 bool "0xA0000000"
142
143config UCPAGE_OFFSET_C0000000
144 bool "0xC0000000 (Recommended)"
145
146endchoice
147
David Howells70382202008-02-04 22:29:53 -0800148config PAGE_OFFSET
149 hex
150 default 0x20000000 if UCPAGE_OFFSET_20000000
151 default 0x40000000 if UCPAGE_OFFSET_40000000
152 default 0x60000000 if UCPAGE_OFFSET_60000000
153 default 0x80000000 if UCPAGE_OFFSET_80000000
154 default 0xA0000000 if UCPAGE_OFFSET_A0000000
155 default 0xC0000000
156
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157config PROTECT_KERNEL
158 bool "Protect core kernel against userspace"
159 depends on !MMU
160 default y
161 help
162 Selecting this option causes the uClinux kernel to change the
163 permittivity of DAMPR register covering the core kernel image to
164 prevent userspace accessing the underlying memory directly.
165
166choice
167 prompt "CPU Caching mode"
168 default FRV_DEFL_CACHE_WBACK
169 help
170 This option determines the default caching mode for the kernel.
171
172 Write-Back caching mode involves the all reads and writes causing
173 the affected cacheline to be read into the cache first before being
174 operated upon. Memory is not then updated by a write until the cache
175 is filled and a cacheline needs to be displaced from the cache to
176 make room. Only at that point is it written back.
177
178 Write-Behind caching is similar to Write-Back caching, except that a
179 write won't fetch a cacheline into the cache if there isn't already
180 one there; it will write directly to memory instead.
181
182 Write-Through caching only fetches cachelines from memory on a
183 read. Writes always get written directly to memory. If the affected
184 cacheline is also in cache, it will be updated too.
185
186 The final option is to turn of caching entirely.
187
188 Note that not all CPUs support Write-Behind caching. If the CPU on
189 which the kernel is running doesn't, it'll fall back to Write-Back
190 caching.
191
192config FRV_DEFL_CACHE_WBACK
193 bool "Write-Back"
194
195config FRV_DEFL_CACHE_WBEHIND
196 bool "Write-Behind"
197
198config FRV_DEFL_CACHE_WTHRU
199 bool "Write-Through"
200
201config FRV_DEFL_CACHE_DISABLED
202 bool "Disabled"
203
204endchoice
205
206menu "CPU core support"
207
208config CPU_FR401
209 bool "Include FR401 core support"
210 depends on !MMU
211 default y
212 help
213 This enables support for the FR401, FR401A and FR403 CPUs
214
215config CPU_FR405
216 bool "Include FR405 core support"
217 depends on !MMU
218 default y
219 help
220 This enables support for the FR405 CPU
221
222config CPU_FR451
223 bool "Include FR451 core support"
224 default y
225 help
226 This enables support for the FR451 CPU
227
228config CPU_FR451_COMPILE
229 bool "Specifically compile for FR451 core"
230 depends on CPU_FR451 && !CPU_FR401 && !CPU_FR405 && !CPU_FR551
231 default y
232 help
233 This causes appropriate flags to be passed to the compiler to
234 optimise for the FR451 CPU
235
236config CPU_FR551
237 bool "Include FR551 core support"
238 depends on !MMU
239 default y
240 help
241 This enables support for the FR555 CPU
242
243config CPU_FR551_COMPILE
244 bool "Specifically compile for FR551 core"
245 depends on CPU_FR551 && !CPU_FR401 && !CPU_FR405 && !CPU_FR451
246 default y
247 help
248 This causes appropriate flags to be passed to the compiler to
249 optimise for the FR555 CPU
250
251config FRV_L1_CACHE_SHIFT
252 int
253 default "5" if CPU_FR401 || CPU_FR405 || CPU_FR451
254 default "6" if CPU_FR551
255
256endmenu
257
258choice
259 prompt "System support"
260 default MB93091_VDK
261
262config MB93091_VDK
263 bool "MB93091 CPU board with or without motherboard"
264
265config MB93093_PDK
266 bool "MB93093 PDK unit"
267
268endchoice
269
270if MB93091_VDK
271choice
272 prompt "Motherboard support"
273 default MB93090_MB00
274
275config MB93090_MB00
276 bool "Use the MB93090-MB00 motherboard"
277 help
278 Select this option if the MB93091 CPU board is going to be used with
279 a MB93090-MB00 VDK motherboard
280
281config MB93091_NO_MB
282 bool "Use standalone"
283 help
284 Select this option if the MB93091 CPU board is going to be used
285 without a motherboard
286
287endchoice
288endif
289
David Howells1bcbba32006-09-25 23:32:04 -0700290config FUJITSU_MB93493
291 bool "MB93493 Multimedia chip"
292 help
293 Select this option if the MB93493 multimedia chip is going to be
294 used.
295
Linus Torvalds1da177e2005-04-16 15:20:36 -0700296choice
297 prompt "GP-Relative data support"
298 default GPREL_DATA_8
299 help
300 This option controls what data, if any, should be placed in the GP
301 relative data sections. Using this means that the compiler can
302 generate accesses to the data using GR16-relative addressing which
303 is faster than absolute instructions and saves space (2 instructions
304 per access).
305
306 However, the GPREL region is limited in size because the immediate
307 value used in the load and store instructions is limited to a 12-bit
308 signed number.
309
310 So if the linker starts complaining that accesses to GPREL data are
311 out of range, try changing this option from the default.
312
313 Note that modules will always be compiled with this feature disabled
314 as the module data will not be in range of the GP base address.
315
316config GPREL_DATA_8
317 bool "Put data objects of up to 8 bytes into GP-REL"
318
319config GPREL_DATA_4
320 bool "Put data objects of up to 4 bytes into GP-REL"
321
322config GPREL_DATA_NONE
323 bool "Don't use GP-REL"
324
325endchoice
326
David Howellsf8aec752006-01-08 01:01:23 -0800327config FRV_ONCPU_SERIAL
328 bool "Use on-CPU serial ports"
329 select SERIAL_8250
330 default y
331
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332config PCI
333 bool "Use PCI"
334 depends on MB93090_MB00
335 default y
336 help
337 Some FR-V systems (such as the MB93090-MB00 VDK) have PCI
338 onboard. If you have one of these boards and you wish to use the PCI
339 facilities, say Y here.
340
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341config RESERVE_DMA_COHERENT
342 bool "Reserve DMA coherent memory"
343 depends on PCI && !MMU
344 default y
345 help
346 Many PCI drivers require access to uncached memory for DMA device
347 communications (such as is done with some Ethernet buffer rings). If
348 a fully featured MMU is available, this can be done through page
349 table settings, but if not, a region has to be set aside and marked
350 with a special DAMPR register.
351
352 Setting this option causes uClinux to set aside a portion of the
353 available memory for use in this manner. The memory will then be
354 unavailable for normal kernel use.
355
356source "drivers/pci/Kconfig"
357
David Howells7a758312006-01-08 01:01:22 -0800358source "drivers/pcmcia/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359
360#config MATH_EMULATION
361# bool "Math emulation support (EXPERIMENTAL)"
362# depends on EXPERIMENTAL
363# help
364# At some point in the future, this will cause floating-point math
365# instructions to be emulated by the kernel on machines that lack a
366# floating-point math coprocessor. Thrill-seekers and chronically
367# sleep-deprived psychotic hacker types can say Y now, everyone else
368# should probably wait a while.
369
370menu "Power management options"
Johannes Bergf4cb5702007-12-08 02:14:00 +0100371
372config ARCH_SUSPEND_POSSIBLE
373 def_bool y
374 depends on !SMP
375
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376source kernel/power/Kconfig
377endmenu
378
379endmenu
380
381
382menu "Executable formats"
383
384source "fs/Kconfig.binfmt"
385
386endmenu
387
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700388source "net/Kconfig"
389
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390source "drivers/Kconfig"
391
392source "fs/Kconfig"
393
Linus Torvalds1da177e2005-04-16 15:20:36 -0700394source "arch/frv/Kconfig.debug"
395
396source "security/Kconfig"
397
398source "crypto/Kconfig"
399
400source "lib/Kconfig"