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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 | ||
1da177e4 LT |
9 | config RWSEM_GENERIC_SPINLOCK |
10 | bool | |
11 | default y | |
12 | ||
13 | config RWSEM_XCHGADD_ALGORITHM | |
14 | bool | |
15 | ||
16 | config GENERIC_FIND_NEXT_BIT | |
17 | bool | |
18 | default y | |
19 | ||
1f6d7a93 AM |
20 | config GENERIC_HWEIGHT |
21 | bool | |
22 | default y | |
23 | ||
1da177e4 LT |
24 | config GENERIC_CALIBRATE_DELAY |
25 | bool | |
26 | default n | |
27 | ||
28 | config GENERIC_HARDIRQS | |
29 | bool | |
1bcbba30 | 30 | default y |
1da177e4 | 31 | |
af8c65b5 DH |
32 | config GENERIC_HARDIRQS_NO__DO_IRQ |
33 | bool | |
34 | default y | |
35 | ||
ebd6c171 | 36 | config GENERIC_TIME |
37 | bool | |
38 | default y | |
39 | ||
06027bdd IM |
40 | config TIME_LOW_RES |
41 | bool | |
42 | default y | |
43 | ||
1da177e4 LT |
44 | mainmenu "Fujitsu FR-V Kernel Configuration" |
45 | ||
46 | source "init/Kconfig" | |
47 | ||
48 | ||
49 | menu "Fujitsu FR-V system setup" | |
50 | ||
51 | config MMU | |
52 | bool "MMU support" | |
53 | help | |
54 | This options switches on and off support for the FR-V MMU | |
55 | (effectively switching between vmlinux and uClinux). Not all FR-V | |
56 | CPUs support this. Currently only the FR451 has a sufficiently | |
57 | featured MMU. | |
58 | ||
59 | config FRV_OUTOFLINE_ATOMIC_OPS | |
60 | bool "Out-of-line the FRV atomic operations" | |
61 | default n | |
62 | help | |
63 | Setting this option causes the FR-V atomic operations to be mostly | |
64 | implemented out-of-line. | |
65 | ||
66 | See Documentation/fujitsu/frv/atomic-ops.txt for more information. | |
67 | ||
68 | config HIGHMEM | |
69 | bool "High memory support" | |
70 | depends on MMU | |
71 | default y | |
72 | help | |
73 | If you wish to use more than 256MB of memory with your MMU based | |
74 | system, you will need to select this option. The kernel can only see | |
75 | the memory between 0xC0000000 and 0xD0000000 directly... everything | |
76 | else must be kmapped. | |
77 | ||
78 | The arch is, however, capable of supporting up to 3GB of SDRAM. | |
79 | ||
80 | config HIGHPTE | |
81 | bool "Allocate page tables in highmem" | |
82 | depends on HIGHMEM | |
83 | default y | |
84 | help | |
85 | The VM uses one page of memory for each page table. For systems | |
86 | with a lot of RAM, this can be wasteful of precious low memory. | |
87 | Setting this option will put user-space page tables in high memory. | |
88 | ||
339b0c08 DH |
89 | config LARGE_ALLOCS |
90 | bool "Allow allocating large blocks (> 1MB) of memory" | |
91 | help | |
92 | Allow the slab memory allocator to keep chains for very large memory | |
93 | sizes - up to 32MB. You may need this if your system has a lot of | |
94 | RAM, and you need to able to allocate very large contiguous chunks. | |
95 | If unsure, say N. | |
96 | ||
3f22ab27 DH |
97 | source "mm/Kconfig" |
98 | ||
1da177e4 LT |
99 | choice |
100 | prompt "uClinux kernel load address" | |
101 | depends on !MMU | |
102 | default UCPAGE_OFFSET_C0000000 | |
103 | help | |
104 | This option sets the base address for the uClinux kernel. The kernel | |
105 | will rearrange the SDRAM layout to start at this address, and move | |
106 | itself to start there. It must be greater than 0, and it must be | |
107 | sufficiently less than 0xE0000000 that the SDRAM does not intersect | |
108 | the I/O region. | |
109 | ||
110 | The base address must also be aligned such that the SDRAM controller | |
111 | can decode it. For instance, a 512MB SDRAM bank must be 512MB aligned. | |
112 | ||
113 | config UCPAGE_OFFSET_20000000 | |
114 | bool "0x20000000" | |
115 | ||
116 | config UCPAGE_OFFSET_40000000 | |
117 | bool "0x40000000" | |
118 | ||
119 | config UCPAGE_OFFSET_60000000 | |
120 | bool "0x60000000" | |
121 | ||
122 | config UCPAGE_OFFSET_80000000 | |
123 | bool "0x80000000" | |
124 | ||
125 | config UCPAGE_OFFSET_A0000000 | |
126 | bool "0xA0000000" | |
127 | ||
128 | config UCPAGE_OFFSET_C0000000 | |
129 | bool "0xC0000000 (Recommended)" | |
130 | ||
131 | endchoice | |
132 | ||
133 | config PROTECT_KERNEL | |
134 | bool "Protect core kernel against userspace" | |
135 | depends on !MMU | |
136 | default y | |
137 | help | |
138 | Selecting this option causes the uClinux kernel to change the | |
139 | permittivity of DAMPR register covering the core kernel image to | |
140 | prevent userspace accessing the underlying memory directly. | |
141 | ||
142 | choice | |
143 | prompt "CPU Caching mode" | |
144 | default FRV_DEFL_CACHE_WBACK | |
145 | help | |
146 | This option determines the default caching mode for the kernel. | |
147 | ||
148 | Write-Back caching mode involves the all reads and writes causing | |
149 | the affected cacheline to be read into the cache first before being | |
150 | operated upon. Memory is not then updated by a write until the cache | |
151 | is filled and a cacheline needs to be displaced from the cache to | |
152 | make room. Only at that point is it written back. | |
153 | ||
154 | Write-Behind caching is similar to Write-Back caching, except that a | |
155 | write won't fetch a cacheline into the cache if there isn't already | |
156 | one there; it will write directly to memory instead. | |
157 | ||
158 | Write-Through caching only fetches cachelines from memory on a | |
159 | read. Writes always get written directly to memory. If the affected | |
160 | cacheline is also in cache, it will be updated too. | |
161 | ||
162 | The final option is to turn of caching entirely. | |
163 | ||
164 | Note that not all CPUs support Write-Behind caching. If the CPU on | |
165 | which the kernel is running doesn't, it'll fall back to Write-Back | |
166 | caching. | |
167 | ||
168 | config FRV_DEFL_CACHE_WBACK | |
169 | bool "Write-Back" | |
170 | ||
171 | config FRV_DEFL_CACHE_WBEHIND | |
172 | bool "Write-Behind" | |
173 | ||
174 | config FRV_DEFL_CACHE_WTHRU | |
175 | bool "Write-Through" | |
176 | ||
177 | config FRV_DEFL_CACHE_DISABLED | |
178 | bool "Disabled" | |
179 | ||
180 | endchoice | |
181 | ||
182 | menu "CPU core support" | |
183 | ||
184 | config CPU_FR401 | |
185 | bool "Include FR401 core support" | |
186 | depends on !MMU | |
187 | default y | |
188 | help | |
189 | This enables support for the FR401, FR401A and FR403 CPUs | |
190 | ||
191 | config CPU_FR405 | |
192 | bool "Include FR405 core support" | |
193 | depends on !MMU | |
194 | default y | |
195 | help | |
196 | This enables support for the FR405 CPU | |
197 | ||
198 | config CPU_FR451 | |
199 | bool "Include FR451 core support" | |
200 | default y | |
201 | help | |
202 | This enables support for the FR451 CPU | |
203 | ||
204 | config CPU_FR451_COMPILE | |
205 | bool "Specifically compile for FR451 core" | |
206 | depends on CPU_FR451 && !CPU_FR401 && !CPU_FR405 && !CPU_FR551 | |
207 | default y | |
208 | help | |
209 | This causes appropriate flags to be passed to the compiler to | |
210 | optimise for the FR451 CPU | |
211 | ||
212 | config CPU_FR551 | |
213 | bool "Include FR551 core support" | |
214 | depends on !MMU | |
215 | default y | |
216 | help | |
217 | This enables support for the FR555 CPU | |
218 | ||
219 | config CPU_FR551_COMPILE | |
220 | bool "Specifically compile for FR551 core" | |
221 | depends on CPU_FR551 && !CPU_FR401 && !CPU_FR405 && !CPU_FR451 | |
222 | default y | |
223 | help | |
224 | This causes appropriate flags to be passed to the compiler to | |
225 | optimise for the FR555 CPU | |
226 | ||
227 | config FRV_L1_CACHE_SHIFT | |
228 | int | |
229 | default "5" if CPU_FR401 || CPU_FR405 || CPU_FR451 | |
230 | default "6" if CPU_FR551 | |
231 | ||
232 | endmenu | |
233 | ||
234 | choice | |
235 | prompt "System support" | |
236 | default MB93091_VDK | |
237 | ||
238 | config MB93091_VDK | |
239 | bool "MB93091 CPU board with or without motherboard" | |
240 | ||
241 | config MB93093_PDK | |
242 | bool "MB93093 PDK unit" | |
243 | ||
244 | endchoice | |
245 | ||
246 | if MB93091_VDK | |
247 | choice | |
248 | prompt "Motherboard support" | |
249 | default MB93090_MB00 | |
250 | ||
251 | config MB93090_MB00 | |
252 | bool "Use the MB93090-MB00 motherboard" | |
253 | help | |
254 | Select this option if the MB93091 CPU board is going to be used with | |
255 | a MB93090-MB00 VDK motherboard | |
256 | ||
257 | config MB93091_NO_MB | |
258 | bool "Use standalone" | |
259 | help | |
260 | Select this option if the MB93091 CPU board is going to be used | |
261 | without a motherboard | |
262 | ||
263 | endchoice | |
264 | endif | |
265 | ||
1bcbba30 DH |
266 | config FUJITSU_MB93493 |
267 | bool "MB93493 Multimedia chip" | |
268 | help | |
269 | Select this option if the MB93493 multimedia chip is going to be | |
270 | used. | |
271 | ||
1da177e4 LT |
272 | choice |
273 | prompt "GP-Relative data support" | |
274 | default GPREL_DATA_8 | |
275 | help | |
276 | This option controls what data, if any, should be placed in the GP | |
277 | relative data sections. Using this means that the compiler can | |
278 | generate accesses to the data using GR16-relative addressing which | |
279 | is faster than absolute instructions and saves space (2 instructions | |
280 | per access). | |
281 | ||
282 | However, the GPREL region is limited in size because the immediate | |
283 | value used in the load and store instructions is limited to a 12-bit | |
284 | signed number. | |
285 | ||
286 | So if the linker starts complaining that accesses to GPREL data are | |
287 | out of range, try changing this option from the default. | |
288 | ||
289 | Note that modules will always be compiled with this feature disabled | |
290 | as the module data will not be in range of the GP base address. | |
291 | ||
292 | config GPREL_DATA_8 | |
293 | bool "Put data objects of up to 8 bytes into GP-REL" | |
294 | ||
295 | config GPREL_DATA_4 | |
296 | bool "Put data objects of up to 4 bytes into GP-REL" | |
297 | ||
298 | config GPREL_DATA_NONE | |
299 | bool "Don't use GP-REL" | |
300 | ||
301 | endchoice | |
302 | ||
f8aec757 DH |
303 | config FRV_ONCPU_SERIAL |
304 | bool "Use on-CPU serial ports" | |
305 | select SERIAL_8250 | |
306 | default y | |
307 | ||
1da177e4 LT |
308 | config PCI |
309 | bool "Use PCI" | |
310 | depends on MB93090_MB00 | |
311 | default y | |
312 | help | |
313 | Some FR-V systems (such as the MB93090-MB00 VDK) have PCI | |
314 | onboard. If you have one of these boards and you wish to use the PCI | |
315 | facilities, say Y here. | |
316 | ||
317 | The PCI-HOWTO, available from | |
318 | <http://www.tldp.org/docs.html#howto>, contains valuable | |
319 | information about which PCI hardware does work under Linux and which | |
320 | doesn't. | |
321 | ||
322 | config RESERVE_DMA_COHERENT | |
323 | bool "Reserve DMA coherent memory" | |
324 | depends on PCI && !MMU | |
325 | default y | |
326 | help | |
327 | Many PCI drivers require access to uncached memory for DMA device | |
328 | communications (such as is done with some Ethernet buffer rings). If | |
329 | a fully featured MMU is available, this can be done through page | |
330 | table settings, but if not, a region has to be set aside and marked | |
331 | with a special DAMPR register. | |
332 | ||
333 | Setting this option causes uClinux to set aside a portion of the | |
334 | available memory for use in this manner. The memory will then be | |
335 | unavailable for normal kernel use. | |
336 | ||
337 | source "drivers/pci/Kconfig" | |
338 | ||
7a758313 | 339 | source "drivers/pcmcia/Kconfig" |
1da177e4 LT |
340 | |
341 | #config MATH_EMULATION | |
342 | # bool "Math emulation support (EXPERIMENTAL)" | |
343 | # depends on EXPERIMENTAL | |
344 | # help | |
345 | # At some point in the future, this will cause floating-point math | |
346 | # instructions to be emulated by the kernel on machines that lack a | |
347 | # floating-point math coprocessor. Thrill-seekers and chronically | |
348 | # sleep-deprived psychotic hacker types can say Y now, everyone else | |
349 | # should probably wait a while. | |
350 | ||
351 | menu "Power management options" | |
352 | source kernel/power/Kconfig | |
353 | endmenu | |
354 | ||
355 | endmenu | |
356 | ||
357 | ||
358 | menu "Executable formats" | |
359 | ||
360 | source "fs/Kconfig.binfmt" | |
361 | ||
362 | endmenu | |
363 | ||
d5950b43 SR |
364 | source "net/Kconfig" |
365 | ||
1da177e4 LT |
366 | source "drivers/Kconfig" |
367 | ||
368 | source "fs/Kconfig" | |
369 | ||
370 | source "arch/frv/Kconfig.debug" | |
371 | ||
372 | source "security/Kconfig" | |
373 | ||
374 | source "crypto/Kconfig" | |
375 | ||
376 | source "lib/Kconfig" |