blob: b86e19c9b5b0a137c297f5a1a55e1be49b7d250b [file] [log] [blame]
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
David Howells4a3b9892009-06-11 13:05:24 +01009 select HAVE_ARCH_TRACEHOOK
David Howells42ca4fb2009-07-02 00:46:21 +010010 select HAVE_PERF_COUNTERS
Linus Torvalds1da177e2005-04-16 15:20:36 -070011
Christoph Lameter66701b12007-02-10 01:43:09 -080012config ZONE_DMA
13 bool
14 default y
15
Linus Torvalds1da177e2005-04-16 15:20:36 -070016config RWSEM_GENERIC_SPINLOCK
17 bool
18 default y
19
20config RWSEM_XCHGADD_ALGORITHM
21 bool
22
23config GENERIC_FIND_NEXT_BIT
24 bool
25 default y
26
Akinobu Mita1f6d7a92006-03-26 01:39:22 -080027config GENERIC_HWEIGHT
28 bool
29 default y
30
Linus Torvalds1da177e2005-04-16 15:20:36 -070031config GENERIC_CALIBRATE_DELAY
32 bool
33 default n
34
35config GENERIC_HARDIRQS
36 bool
David Howells1bcbba32006-09-25 23:32:04 -070037 default y
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
David Howellsaf8c65b2006-09-25 23:32:07 -070039config GENERIC_HARDIRQS_NO__DO_IRQ
40 bool
41 default y
42
john stultzebd6c172006-09-06 11:02:45 +010043config GENERIC_TIME
44 bool
45 default y
46
Ingo Molnar06027bd2006-02-14 13:53:15 -080047config TIME_LOW_RES
48 bool
49 default y
50
Christoph Lameter8defab32007-05-09 02:32:48 -070051config QUICKLIST
52 bool
53 default y
54
David Howellsf0d1b0b2006-12-08 02:37:49 -080055config ARCH_HAS_ILOG2_U32
56 bool
57 default y
58
59config ARCH_HAS_ILOG2_U64
60 bool
61 default y
62
H. Peter Anvinbdc80782008-02-08 04:21:26 -080063config HZ
64 int
65 default 1000
66
Linus Torvalds1da177e2005-04-16 15:20:36 -070067mainmenu "Fujitsu FR-V Kernel Configuration"
68
69source "init/Kconfig"
70
Matt Helsleydc52ddc2008-10-18 20:27:21 -070071source "kernel/Kconfig.freezer"
72
Linus Torvalds1da177e2005-04-16 15:20:36 -070073
74menu "Fujitsu FR-V system setup"
75
76config MMU
77 bool "MMU support"
78 help
79 This options switches on and off support for the FR-V MMU
80 (effectively switching between vmlinux and uClinux). Not all FR-V
81 CPUs support this. Currently only the FR451 has a sufficiently
82 featured MMU.
83
84config FRV_OUTOFLINE_ATOMIC_OPS
85 bool "Out-of-line the FRV atomic operations"
86 default n
87 help
88 Setting this option causes the FR-V atomic operations to be mostly
89 implemented out-of-line.
90
Adrian Bunk0868ff72008-02-03 15:54:28 +020091 See Documentation/frv/atomic-ops.txt for more information.
Linus Torvalds1da177e2005-04-16 15:20:36 -070092
93config HIGHMEM
94 bool "High memory support"
95 depends on MMU
96 default y
97 help
98 If you wish to use more than 256MB of memory with your MMU based
99 system, you will need to select this option. The kernel can only see
100 the memory between 0xC0000000 and 0xD0000000 directly... everything
101 else must be kmapped.
102
103 The arch is, however, capable of supporting up to 3GB of SDRAM.
104
105config HIGHPTE
106 bool "Allocate page tables in highmem"
107 depends on HIGHMEM
108 default y
109 help
110 The VM uses one page of memory for each page table. For systems
111 with a lot of RAM, this can be wasteful of precious low memory.
112 Setting this option will put user-space page tables in high memory.
113
Dave Hansen3f22ab22005-06-23 00:07:43 -0700114source "mm/Kconfig"
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116choice
117 prompt "uClinux kernel load address"
118 depends on !MMU
119 default UCPAGE_OFFSET_C0000000
120 help
121 This option sets the base address for the uClinux kernel. The kernel
122 will rearrange the SDRAM layout to start at this address, and move
123 itself to start there. It must be greater than 0, and it must be
124 sufficiently less than 0xE0000000 that the SDRAM does not intersect
125 the I/O region.
126
127 The base address must also be aligned such that the SDRAM controller
128 can decode it. For instance, a 512MB SDRAM bank must be 512MB aligned.
129
130config UCPAGE_OFFSET_20000000
131 bool "0x20000000"
132
133config UCPAGE_OFFSET_40000000
134 bool "0x40000000"
135
136config UCPAGE_OFFSET_60000000
137 bool "0x60000000"
138
139config UCPAGE_OFFSET_80000000
140 bool "0x80000000"
141
142config UCPAGE_OFFSET_A0000000
143 bool "0xA0000000"
144
145config UCPAGE_OFFSET_C0000000
146 bool "0xC0000000 (Recommended)"
147
148endchoice
149
David Howells70382202008-02-04 22:29:53 -0800150config PAGE_OFFSET
151 hex
152 default 0x20000000 if UCPAGE_OFFSET_20000000
153 default 0x40000000 if UCPAGE_OFFSET_40000000
154 default 0x60000000 if UCPAGE_OFFSET_60000000
155 default 0x80000000 if UCPAGE_OFFSET_80000000
156 default 0xA0000000 if UCPAGE_OFFSET_A0000000
157 default 0xC0000000
158
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159config PROTECT_KERNEL
160 bool "Protect core kernel against userspace"
161 depends on !MMU
162 default y
163 help
164 Selecting this option causes the uClinux kernel to change the
165 permittivity of DAMPR register covering the core kernel image to
166 prevent userspace accessing the underlying memory directly.
167
168choice
169 prompt "CPU Caching mode"
170 default FRV_DEFL_CACHE_WBACK
171 help
172 This option determines the default caching mode for the kernel.
173
174 Write-Back caching mode involves the all reads and writes causing
175 the affected cacheline to be read into the cache first before being
176 operated upon. Memory is not then updated by a write until the cache
177 is filled and a cacheline needs to be displaced from the cache to
178 make room. Only at that point is it written back.
179
180 Write-Behind caching is similar to Write-Back caching, except that a
181 write won't fetch a cacheline into the cache if there isn't already
182 one there; it will write directly to memory instead.
183
184 Write-Through caching only fetches cachelines from memory on a
185 read. Writes always get written directly to memory. If the affected
186 cacheline is also in cache, it will be updated too.
187
188 The final option is to turn of caching entirely.
189
190 Note that not all CPUs support Write-Behind caching. If the CPU on
191 which the kernel is running doesn't, it'll fall back to Write-Back
192 caching.
193
194config FRV_DEFL_CACHE_WBACK
195 bool "Write-Back"
196
197config FRV_DEFL_CACHE_WBEHIND
198 bool "Write-Behind"
199
200config FRV_DEFL_CACHE_WTHRU
201 bool "Write-Through"
202
203config FRV_DEFL_CACHE_DISABLED
204 bool "Disabled"
205
206endchoice
207
208menu "CPU core support"
209
210config CPU_FR401
211 bool "Include FR401 core support"
212 depends on !MMU
213 default y
214 help
215 This enables support for the FR401, FR401A and FR403 CPUs
216
217config CPU_FR405
218 bool "Include FR405 core support"
219 depends on !MMU
220 default y
221 help
222 This enables support for the FR405 CPU
223
224config CPU_FR451
225 bool "Include FR451 core support"
226 default y
227 help
228 This enables support for the FR451 CPU
229
230config CPU_FR451_COMPILE
231 bool "Specifically compile for FR451 core"
232 depends on CPU_FR451 && !CPU_FR401 && !CPU_FR405 && !CPU_FR551
233 default y
234 help
235 This causes appropriate flags to be passed to the compiler to
236 optimise for the FR451 CPU
237
238config CPU_FR551
239 bool "Include FR551 core support"
240 depends on !MMU
241 default y
242 help
243 This enables support for the FR555 CPU
244
245config CPU_FR551_COMPILE
246 bool "Specifically compile for FR551 core"
247 depends on CPU_FR551 && !CPU_FR401 && !CPU_FR405 && !CPU_FR451
248 default y
249 help
250 This causes appropriate flags to be passed to the compiler to
251 optimise for the FR555 CPU
252
253config FRV_L1_CACHE_SHIFT
254 int
255 default "5" if CPU_FR401 || CPU_FR405 || CPU_FR451
256 default "6" if CPU_FR551
257
258endmenu
259
260choice
261 prompt "System support"
262 default MB93091_VDK
263
264config MB93091_VDK
265 bool "MB93091 CPU board with or without motherboard"
266
267config MB93093_PDK
268 bool "MB93093 PDK unit"
269
270endchoice
271
272if MB93091_VDK
273choice
274 prompt "Motherboard support"
275 default MB93090_MB00
276
277config MB93090_MB00
278 bool "Use the MB93090-MB00 motherboard"
279 help
280 Select this option if the MB93091 CPU board is going to be used with
281 a MB93090-MB00 VDK motherboard
282
283config MB93091_NO_MB
284 bool "Use standalone"
285 help
286 Select this option if the MB93091 CPU board is going to be used
287 without a motherboard
288
289endchoice
290endif
291
David Howells1bcbba32006-09-25 23:32:04 -0700292config FUJITSU_MB93493
293 bool "MB93493 Multimedia chip"
294 help
295 Select this option if the MB93493 multimedia chip is going to be
296 used.
297
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298choice
299 prompt "GP-Relative data support"
300 default GPREL_DATA_8
301 help
302 This option controls what data, if any, should be placed in the GP
303 relative data sections. Using this means that the compiler can
304 generate accesses to the data using GR16-relative addressing which
305 is faster than absolute instructions and saves space (2 instructions
306 per access).
307
308 However, the GPREL region is limited in size because the immediate
309 value used in the load and store instructions is limited to a 12-bit
310 signed number.
311
312 So if the linker starts complaining that accesses to GPREL data are
313 out of range, try changing this option from the default.
314
315 Note that modules will always be compiled with this feature disabled
316 as the module data will not be in range of the GP base address.
317
318config GPREL_DATA_8
319 bool "Put data objects of up to 8 bytes into GP-REL"
320
321config GPREL_DATA_4
322 bool "Put data objects of up to 4 bytes into GP-REL"
323
324config GPREL_DATA_NONE
325 bool "Don't use GP-REL"
326
327endchoice
328
David Howellsf8aec752006-01-08 01:01:23 -0800329config FRV_ONCPU_SERIAL
330 bool "Use on-CPU serial ports"
331 select SERIAL_8250
332 default y
333
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334config PCI
335 bool "Use PCI"
336 depends on MB93090_MB00
337 default y
338 help
339 Some FR-V systems (such as the MB93090-MB00 VDK) have PCI
340 onboard. If you have one of these boards and you wish to use the PCI
341 facilities, say Y here.
342
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343config RESERVE_DMA_COHERENT
344 bool "Reserve DMA coherent memory"
345 depends on PCI && !MMU
346 default y
347 help
348 Many PCI drivers require access to uncached memory for DMA device
349 communications (such as is done with some Ethernet buffer rings). If
350 a fully featured MMU is available, this can be done through page
351 table settings, but if not, a region has to be set aside and marked
352 with a special DAMPR register.
353
354 Setting this option causes uClinux to set aside a portion of the
355 available memory for use in this manner. The memory will then be
356 unavailable for normal kernel use.
357
358source "drivers/pci/Kconfig"
359
David Howells7a758312006-01-08 01:01:22 -0800360source "drivers/pcmcia/Kconfig"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361
362#config MATH_EMULATION
363# bool "Math emulation support (EXPERIMENTAL)"
364# depends on EXPERIMENTAL
365# help
366# At some point in the future, this will cause floating-point math
367# instructions to be emulated by the kernel on machines that lack a
368# floating-point math coprocessor. Thrill-seekers and chronically
369# sleep-deprived psychotic hacker types can say Y now, everyone else
370# should probably wait a while.
371
372menu "Power management options"
Johannes Bergf4cb5702007-12-08 02:14:00 +0100373
374config ARCH_SUSPEND_POSSIBLE
375 def_bool y
376 depends on !SMP
377
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378source kernel/power/Kconfig
379endmenu
380
381endmenu
382
383
384menu "Executable formats"
385
386source "fs/Kconfig.binfmt"
387
388endmenu
389
Sam Ravnborgd5950b42005-07-11 21:03:49 -0700390source "net/Kconfig"
391
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392source "drivers/Kconfig"
393
394source "fs/Kconfig"
395
Linus Torvalds1da177e2005-04-16 15:20:36 -0700396source "arch/frv/Kconfig.debug"
397
398source "security/Kconfig"
399
400source "crypto/Kconfig"
401
402source "lib/Kconfig"