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1da177e4 LT |
1 | # |
2 | # For a description of the syntax of this configuration file, | |
3 | # see Documentation/kbuild/kconfig-language.txt. | |
4 | # | |
5 | config FRV | |
6 | bool | |
7 | default y | |
8 | ||
66701b14 CL |
9 | config ZONE_DMA |
10 | bool | |
11 | default y | |
12 | ||
1da177e4 LT |
13 | config RWSEM_GENERIC_SPINLOCK |
14 | bool | |
15 | default y | |
16 | ||
17 | config RWSEM_XCHGADD_ALGORITHM | |
18 | bool | |
19 | ||
20 | config GENERIC_FIND_NEXT_BIT | |
21 | bool | |
22 | default y | |
23 | ||
1f6d7a93 AM |
24 | config GENERIC_HWEIGHT |
25 | bool | |
26 | default y | |
27 | ||
1da177e4 LT |
28 | config GENERIC_CALIBRATE_DELAY |
29 | bool | |
30 | default n | |
31 | ||
32 | config GENERIC_HARDIRQS | |
33 | bool | |
1bcbba30 | 34 | default y |
1da177e4 | 35 | |
af8c65b5 DH |
36 | config GENERIC_HARDIRQS_NO__DO_IRQ |
37 | bool | |
38 | default y | |
39 | ||
ebd6c171 | 40 | config GENERIC_TIME |
41 | bool | |
42 | default y | |
43 | ||
06027bdd IM |
44 | config TIME_LOW_RES |
45 | bool | |
46 | default y | |
47 | ||
8defab33 | 48 | config QUICKLIST |
f0d1b0b3 DH |
49 | bool |
50 | default y | |
51 | ||
8defab33 | 52 | config ARCH_HAS_ILOG2_U32 |
f0d1b0b3 DH |
53 | bool |
54 | default y | |
55 | ||
8defab33 | 56 | config ARCH_HAS_ILOG2_U64 |
81819f0f CL |
57 | bool |
58 | default y | |
59 | ||
1da177e4 LT |
60 | mainmenu "Fujitsu FR-V Kernel Configuration" |
61 | ||
62 | source "init/Kconfig" | |
63 | ||
64 | ||
65 | menu "Fujitsu FR-V system setup" | |
66 | ||
67 | config MMU | |
68 | bool "MMU support" | |
69 | help | |
70 | This options switches on and off support for the FR-V MMU | |
71 | (effectively switching between vmlinux and uClinux). Not all FR-V | |
72 | CPUs support this. Currently only the FR451 has a sufficiently | |
73 | featured MMU. | |
74 | ||
75 | config FRV_OUTOFLINE_ATOMIC_OPS | |
76 | bool "Out-of-line the FRV atomic operations" | |
77 | default n | |
78 | help | |
79 | Setting this option causes the FR-V atomic operations to be mostly | |
80 | implemented out-of-line. | |
81 | ||
0868ff7a | 82 | See Documentation/frv/atomic-ops.txt for more information. |
1da177e4 LT |
83 | |
84 | config HIGHMEM | |
85 | bool "High memory support" | |
86 | depends on MMU | |
87 | default y | |
88 | help | |
89 | If you wish to use more than 256MB of memory with your MMU based | |
90 | system, you will need to select this option. The kernel can only see | |
91 | the memory between 0xC0000000 and 0xD0000000 directly... everything | |
92 | else must be kmapped. | |
93 | ||
94 | The arch is, however, capable of supporting up to 3GB of SDRAM. | |
95 | ||
96 | config HIGHPTE | |
97 | bool "Allocate page tables in highmem" | |
98 | depends on HIGHMEM | |
99 | default y | |
100 | help | |
101 | The VM uses one page of memory for each page table. For systems | |
102 | with a lot of RAM, this can be wasteful of precious low memory. | |
103 | Setting this option will put user-space page tables in high memory. | |
104 | ||
3f22ab27 DH |
105 | source "mm/Kconfig" |
106 | ||
1da177e4 LT |
107 | choice |
108 | prompt "uClinux kernel load address" | |
109 | depends on !MMU | |
110 | default UCPAGE_OFFSET_C0000000 | |
111 | help | |
112 | This option sets the base address for the uClinux kernel. The kernel | |
113 | will rearrange the SDRAM layout to start at this address, and move | |
114 | itself to start there. It must be greater than 0, and it must be | |
115 | sufficiently less than 0xE0000000 that the SDRAM does not intersect | |
116 | the I/O region. | |
117 | ||
118 | The base address must also be aligned such that the SDRAM controller | |
119 | can decode it. For instance, a 512MB SDRAM bank must be 512MB aligned. | |
120 | ||
121 | config UCPAGE_OFFSET_20000000 | |
122 | bool "0x20000000" | |
123 | ||
124 | config UCPAGE_OFFSET_40000000 | |
125 | bool "0x40000000" | |
126 | ||
127 | config UCPAGE_OFFSET_60000000 | |
128 | bool "0x60000000" | |
129 | ||
130 | config UCPAGE_OFFSET_80000000 | |
131 | bool "0x80000000" | |
132 | ||
133 | config UCPAGE_OFFSET_A0000000 | |
134 | bool "0xA0000000" | |
135 | ||
136 | config UCPAGE_OFFSET_C0000000 | |
137 | bool "0xC0000000 (Recommended)" | |
138 | ||
139 | endchoice | |
140 | ||
7038220a DH |
141 | config PAGE_OFFSET |
142 | hex | |
143 | default 0x20000000 if UCPAGE_OFFSET_20000000 | |
144 | default 0x40000000 if UCPAGE_OFFSET_40000000 | |
145 | default 0x60000000 if UCPAGE_OFFSET_60000000 | |
146 | default 0x80000000 if UCPAGE_OFFSET_80000000 | |
147 | default 0xA0000000 if UCPAGE_OFFSET_A0000000 | |
148 | default 0xC0000000 | |
149 | ||
1da177e4 LT |
150 | config PROTECT_KERNEL |
151 | bool "Protect core kernel against userspace" | |
152 | depends on !MMU | |
153 | default y | |
154 | help | |
155 | Selecting this option causes the uClinux kernel to change the | |
156 | permittivity of DAMPR register covering the core kernel image to | |
157 | prevent userspace accessing the underlying memory directly. | |
158 | ||
159 | choice | |
160 | prompt "CPU Caching mode" | |
161 | default FRV_DEFL_CACHE_WBACK | |
162 | help | |
163 | This option determines the default caching mode for the kernel. | |
164 | ||
165 | Write-Back caching mode involves the all reads and writes causing | |
166 | the affected cacheline to be read into the cache first before being | |
167 | operated upon. Memory is not then updated by a write until the cache | |
168 | is filled and a cacheline needs to be displaced from the cache to | |
169 | make room. Only at that point is it written back. | |
170 | ||
171 | Write-Behind caching is similar to Write-Back caching, except that a | |
172 | write won't fetch a cacheline into the cache if there isn't already | |
173 | one there; it will write directly to memory instead. | |
174 | ||
175 | Write-Through caching only fetches cachelines from memory on a | |
176 | read. Writes always get written directly to memory. If the affected | |
177 | cacheline is also in cache, it will be updated too. | |
178 | ||
179 | The final option is to turn of caching entirely. | |
180 | ||
181 | Note that not all CPUs support Write-Behind caching. If the CPU on | |
182 | which the kernel is running doesn't, it'll fall back to Write-Back | |
183 | caching. | |
184 | ||
185 | config FRV_DEFL_CACHE_WBACK | |
186 | bool "Write-Back" | |
187 | ||
188 | config FRV_DEFL_CACHE_WBEHIND | |
189 | bool "Write-Behind" | |
190 | ||
191 | config FRV_DEFL_CACHE_WTHRU | |
192 | bool "Write-Through" | |
193 | ||
194 | config FRV_DEFL_CACHE_DISABLED | |
195 | bool "Disabled" | |
196 | ||
197 | endchoice | |
198 | ||
199 | menu "CPU core support" | |
200 | ||
201 | config CPU_FR401 | |
202 | bool "Include FR401 core support" | |
203 | depends on !MMU | |
204 | default y | |
205 | help | |
206 | This enables support for the FR401, FR401A and FR403 CPUs | |
207 | ||
208 | config CPU_FR405 | |
209 | bool "Include FR405 core support" | |
210 | depends on !MMU | |
211 | default y | |
212 | help | |
213 | This enables support for the FR405 CPU | |
214 | ||
215 | config CPU_FR451 | |
216 | bool "Include FR451 core support" | |
217 | default y | |
218 | help | |
219 | This enables support for the FR451 CPU | |
220 | ||
221 | config CPU_FR451_COMPILE | |
222 | bool "Specifically compile for FR451 core" | |
223 | depends on CPU_FR451 && !CPU_FR401 && !CPU_FR405 && !CPU_FR551 | |
224 | default y | |
225 | help | |
226 | This causes appropriate flags to be passed to the compiler to | |
227 | optimise for the FR451 CPU | |
228 | ||
229 | config CPU_FR551 | |
230 | bool "Include FR551 core support" | |
231 | depends on !MMU | |
232 | default y | |
233 | help | |
234 | This enables support for the FR555 CPU | |
235 | ||
236 | config CPU_FR551_COMPILE | |
237 | bool "Specifically compile for FR551 core" | |
238 | depends on CPU_FR551 && !CPU_FR401 && !CPU_FR405 && !CPU_FR451 | |
239 | default y | |
240 | help | |
241 | This causes appropriate flags to be passed to the compiler to | |
242 | optimise for the FR555 CPU | |
243 | ||
244 | config FRV_L1_CACHE_SHIFT | |
245 | int | |
246 | default "5" if CPU_FR401 || CPU_FR405 || CPU_FR451 | |
247 | default "6" if CPU_FR551 | |
248 | ||
249 | endmenu | |
250 | ||
251 | choice | |
252 | prompt "System support" | |
253 | default MB93091_VDK | |
254 | ||
255 | config MB93091_VDK | |
256 | bool "MB93091 CPU board with or without motherboard" | |
257 | ||
258 | config MB93093_PDK | |
259 | bool "MB93093 PDK unit" | |
260 | ||
261 | endchoice | |
262 | ||
263 | if MB93091_VDK | |
264 | choice | |
265 | prompt "Motherboard support" | |
266 | default MB93090_MB00 | |
267 | ||
268 | config MB93090_MB00 | |
269 | bool "Use the MB93090-MB00 motherboard" | |
270 | help | |
271 | Select this option if the MB93091 CPU board is going to be used with | |
272 | a MB93090-MB00 VDK motherboard | |
273 | ||
274 | config MB93091_NO_MB | |
275 | bool "Use standalone" | |
276 | help | |
277 | Select this option if the MB93091 CPU board is going to be used | |
278 | without a motherboard | |
279 | ||
280 | endchoice | |
281 | endif | |
282 | ||
1bcbba30 DH |
283 | config FUJITSU_MB93493 |
284 | bool "MB93493 Multimedia chip" | |
285 | help | |
286 | Select this option if the MB93493 multimedia chip is going to be | |
287 | used. | |
288 | ||
1da177e4 LT |
289 | choice |
290 | prompt "GP-Relative data support" | |
291 | default GPREL_DATA_8 | |
292 | help | |
293 | This option controls what data, if any, should be placed in the GP | |
294 | relative data sections. Using this means that the compiler can | |
295 | generate accesses to the data using GR16-relative addressing which | |
296 | is faster than absolute instructions and saves space (2 instructions | |
297 | per access). | |
298 | ||
299 | However, the GPREL region is limited in size because the immediate | |
300 | value used in the load and store instructions is limited to a 12-bit | |
301 | signed number. | |
302 | ||
303 | So if the linker starts complaining that accesses to GPREL data are | |
304 | out of range, try changing this option from the default. | |
305 | ||
306 | Note that modules will always be compiled with this feature disabled | |
307 | as the module data will not be in range of the GP base address. | |
308 | ||
309 | config GPREL_DATA_8 | |
310 | bool "Put data objects of up to 8 bytes into GP-REL" | |
311 | ||
312 | config GPREL_DATA_4 | |
313 | bool "Put data objects of up to 4 bytes into GP-REL" | |
314 | ||
315 | config GPREL_DATA_NONE | |
316 | bool "Don't use GP-REL" | |
317 | ||
318 | endchoice | |
319 | ||
f8aec757 DH |
320 | config FRV_ONCPU_SERIAL |
321 | bool "Use on-CPU serial ports" | |
322 | select SERIAL_8250 | |
323 | default y | |
324 | ||
1da177e4 LT |
325 | config PCI |
326 | bool "Use PCI" | |
327 | depends on MB93090_MB00 | |
328 | default y | |
329 | help | |
330 | Some FR-V systems (such as the MB93090-MB00 VDK) have PCI | |
331 | onboard. If you have one of these boards and you wish to use the PCI | |
332 | facilities, say Y here. | |
333 | ||
1da177e4 LT |
334 | config RESERVE_DMA_COHERENT |
335 | bool "Reserve DMA coherent memory" | |
336 | depends on PCI && !MMU | |
337 | default y | |
338 | help | |
339 | Many PCI drivers require access to uncached memory for DMA device | |
340 | communications (such as is done with some Ethernet buffer rings). If | |
341 | a fully featured MMU is available, this can be done through page | |
342 | table settings, but if not, a region has to be set aside and marked | |
343 | with a special DAMPR register. | |
344 | ||
345 | Setting this option causes uClinux to set aside a portion of the | |
346 | available memory for use in this manner. The memory will then be | |
347 | unavailable for normal kernel use. | |
348 | ||
349 | source "drivers/pci/Kconfig" | |
350 | ||
7a758313 | 351 | source "drivers/pcmcia/Kconfig" |
1da177e4 LT |
352 | |
353 | #config MATH_EMULATION | |
354 | # bool "Math emulation support (EXPERIMENTAL)" | |
355 | # depends on EXPERIMENTAL | |
356 | # help | |
357 | # At some point in the future, this will cause floating-point math | |
358 | # instructions to be emulated by the kernel on machines that lack a | |
359 | # floating-point math coprocessor. Thrill-seekers and chronically | |
360 | # sleep-deprived psychotic hacker types can say Y now, everyone else | |
361 | # should probably wait a while. | |
362 | ||
363 | menu "Power management options" | |
f4cb5700 JB |
364 | |
365 | config ARCH_SUSPEND_POSSIBLE | |
366 | def_bool y | |
367 | depends on !SMP | |
368 | ||
1da177e4 LT |
369 | source kernel/power/Kconfig |
370 | endmenu | |
371 | ||
372 | endmenu | |
373 | ||
374 | ||
375 | menu "Executable formats" | |
376 | ||
377 | source "fs/Kconfig.binfmt" | |
378 | ||
379 | endmenu | |
380 | ||
d5950b43 SR |
381 | source "net/Kconfig" |
382 | ||
1da177e4 LT |
383 | source "drivers/Kconfig" |
384 | ||
385 | source "fs/Kconfig" | |
386 | ||
387 | source "arch/frv/Kconfig.debug" | |
388 | ||
389 | source "security/Kconfig" | |
390 | ||
391 | source "crypto/Kconfig" | |
392 | ||
393 | source "lib/Kconfig" |