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Commit | Line | Data |
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1 | menu "Processor selection" | |
2 | ||
3 | # | |
4 | # Processor families | |
5 | # | |
6 | config CPU_SH2 | |
7 | select SH_WRITETHROUGH if !CPU_SH2A | |
8 | bool | |
9 | ||
10 | config CPU_SH2A | |
11 | bool | |
12 | select CPU_SH2 | |
13 | ||
14 | config CPU_SH3 | |
15 | bool | |
16 | select CPU_HAS_INTEVT | |
17 | select CPU_HAS_SR_RB | |
18 | ||
19 | config CPU_SH4 | |
20 | bool | |
21 | select CPU_HAS_INTEVT | |
22 | select CPU_HAS_SR_RB | |
23 | ||
24 | config CPU_SH4A | |
25 | bool | |
26 | select CPU_SH4 | |
27 | ||
28 | config CPU_SH4AL_DSP | |
29 | bool | |
30 | select CPU_SH4A | |
31 | ||
32 | config CPU_SUBTYPE_ST40 | |
33 | bool | |
34 | select CPU_SH4 | |
35 | select CPU_HAS_INTC2_IRQ | |
36 | ||
37 | # | |
38 | # Processor subtypes | |
39 | # | |
40 | ||
41 | comment "SH-2 Processor Support" | |
42 | ||
43 | config CPU_SUBTYPE_SH7604 | |
44 | bool "Support SH7604 processor" | |
45 | select CPU_SH2 | |
46 | ||
47 | config CPU_SUBTYPE_SH7619 | |
48 | bool "Support SH7619 processor" | |
49 | select CPU_SH2 | |
50 | ||
51 | comment "SH-2A Processor Support" | |
52 | ||
53 | config CPU_SUBTYPE_SH7206 | |
54 | bool "Support SH7206 processor" | |
55 | select CPU_SH2A | |
56 | ||
57 | comment "SH-3 Processor Support" | |
58 | ||
59 | config CPU_SUBTYPE_SH7300 | |
60 | bool "Support SH7300 processor" | |
61 | select CPU_SH3 | |
62 | ||
63 | config CPU_SUBTYPE_SH7705 | |
64 | bool "Support SH7705 processor" | |
65 | select CPU_SH3 | |
66 | select CPU_HAS_PINT_IRQ | |
67 | ||
68 | config CPU_SUBTYPE_SH7706 | |
69 | bool "Support SH7706 processor" | |
70 | select CPU_SH3 | |
71 | help | |
72 | Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. | |
73 | ||
74 | config CPU_SUBTYPE_SH7707 | |
75 | bool "Support SH7707 processor" | |
76 | select CPU_SH3 | |
77 | select CPU_HAS_PINT_IRQ | |
78 | help | |
79 | Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. | |
80 | ||
81 | config CPU_SUBTYPE_SH7708 | |
82 | bool "Support SH7708 processor" | |
83 | select CPU_SH3 | |
84 | help | |
85 | Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or | |
86 | if you have a 100 Mhz SH-3 HD6417708R CPU. | |
87 | ||
88 | config CPU_SUBTYPE_SH7709 | |
89 | bool "Support SH7709 processor" | |
90 | select CPU_SH3 | |
91 | select CPU_HAS_PINT_IRQ | |
92 | help | |
93 | Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. | |
94 | ||
95 | config CPU_SUBTYPE_SH7710 | |
96 | bool "Support SH7710 processor" | |
97 | select CPU_SH3 | |
98 | help | |
99 | Select SH7710 if you have a SH3-DSP SH7710 CPU. | |
100 | ||
101 | comment "SH-4 Processor Support" | |
102 | ||
103 | config CPU_SUBTYPE_SH7750 | |
104 | bool "Support SH7750 processor" | |
105 | select CPU_SH4 | |
106 | help | |
107 | Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. | |
108 | ||
109 | config CPU_SUBTYPE_SH7091 | |
110 | bool "Support SH7091 processor" | |
111 | select CPU_SH4 | |
112 | select CPU_SUBTYPE_SH7750 | |
113 | help | |
114 | Select SH7091 if you have an SH-4 based Sega device (such as | |
115 | the Dreamcast, Naomi, and Naomi 2). | |
116 | ||
117 | config CPU_SUBTYPE_SH7750R | |
118 | bool "Support SH7750R processor" | |
119 | select CPU_SH4 | |
120 | select CPU_SUBTYPE_SH7750 | |
121 | ||
122 | config CPU_SUBTYPE_SH7750S | |
123 | bool "Support SH7750S processor" | |
124 | select CPU_SH4 | |
125 | select CPU_SUBTYPE_SH7750 | |
126 | ||
127 | config CPU_SUBTYPE_SH7751 | |
128 | bool "Support SH7751 processor" | |
129 | select CPU_SH4 | |
130 | help | |
131 | Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, | |
132 | or if you have a HD6417751R CPU. | |
133 | ||
134 | config CPU_SUBTYPE_SH7751R | |
135 | bool "Support SH7751R processor" | |
136 | select CPU_SH4 | |
137 | select CPU_SUBTYPE_SH7751 | |
138 | ||
139 | config CPU_SUBTYPE_SH7760 | |
140 | bool "Support SH7760 processor" | |
141 | select CPU_SH4 | |
142 | select CPU_HAS_INTC2_IRQ | |
143 | ||
144 | config CPU_SUBTYPE_SH4_202 | |
145 | bool "Support SH4-202 processor" | |
146 | select CPU_SH4 | |
147 | ||
148 | comment "ST40 Processor Support" | |
149 | ||
150 | config CPU_SUBTYPE_ST40STB1 | |
151 | bool "Support ST40STB1/ST40RA processors" | |
152 | select CPU_SUBTYPE_ST40 | |
153 | help | |
154 | Select ST40STB1 if you have a ST40RA CPU. | |
155 | This was previously called the ST40STB1, hence the option name. | |
156 | ||
157 | config CPU_SUBTYPE_ST40GX1 | |
158 | bool "Support ST40GX1 processor" | |
159 | select CPU_SUBTYPE_ST40 | |
160 | help | |
161 | Select ST40GX1 if you have a ST40GX1 CPU. | |
162 | ||
163 | comment "SH-4A Processor Support" | |
164 | ||
165 | config CPU_SUBTYPE_SH7770 | |
166 | bool "Support SH7770 processor" | |
167 | select CPU_SH4A | |
168 | ||
169 | config CPU_SUBTYPE_SH7780 | |
170 | bool "Support SH7780 processor" | |
171 | select CPU_SH4A | |
172 | select CPU_HAS_INTC2_IRQ | |
173 | ||
174 | config CPU_SUBTYPE_SH7785 | |
175 | bool "Support SH7785 processor" | |
176 | select CPU_SH4A | |
177 | select CPU_HAS_INTC2_IRQ | |
178 | ||
179 | comment "SH4AL-DSP Processor Support" | |
180 | ||
181 | config CPU_SUBTYPE_SH73180 | |
182 | bool "Support SH73180 processor" | |
183 | select CPU_SH4AL_DSP | |
184 | ||
185 | config CPU_SUBTYPE_SH7343 | |
186 | bool "Support SH7343 processor" | |
187 | select CPU_SH4AL_DSP | |
188 | ||
189 | endmenu | |
190 | ||
191 | menu "Memory management options" | |
192 | ||
193 | config MMU | |
194 | bool "Support for memory management hardware" | |
195 | depends on !CPU_SH2 | |
196 | default y | |
197 | help | |
198 | Some SH processors (such as SH-2/SH-2A) lack an MMU. In order to | |
199 | boot on these systems, this option must not be set. | |
200 | ||
201 | On other systems (such as the SH-3 and 4) where an MMU exists, | |
202 | turning this off will boot the kernel on these machines with the | |
203 | MMU implicitly switched off. | |
204 | ||
205 | config PAGE_OFFSET | |
206 | hex | |
207 | default "0x80000000" if MMU | |
208 | default "0x00000000" | |
209 | ||
210 | config MEMORY_START | |
211 | hex "Physical memory start address" | |
212 | default "0x08000000" | |
213 | ---help--- | |
214 | Computers built with Hitachi SuperH processors always | |
215 | map the ROM starting at address zero. But the processor | |
216 | does not specify the range that RAM takes. | |
217 | ||
218 | The physical memory (RAM) start address will be automatically | |
219 | set to 08000000. Other platforms, such as the Solution Engine | |
220 | boards typically map RAM at 0C000000. | |
221 | ||
222 | Tweak this only when porting to a new machine which does not | |
223 | already have a defconfig. Changing it from the known correct | |
224 | value on any of the known systems will only lead to disaster. | |
225 | ||
226 | config MEMORY_SIZE | |
227 | hex "Physical memory size" | |
228 | default "0x00400000" | |
229 | help | |
230 | This sets the default memory size assumed by your SH kernel. It can | |
231 | be overridden as normal by the 'mem=' argument on the kernel command | |
232 | line. If unsure, consult your board specifications or just leave it | |
233 | as 0x00400000 which was the default value before this became | |
234 | configurable. | |
235 | ||
236 | config 32BIT | |
237 | bool "Support 32-bit physical addressing through PMB" | |
238 | depends on CPU_SH4A && MMU | |
239 | default y | |
240 | help | |
241 | If you say Y here, physical addressing will be extended to | |
242 | 32-bits through the SH-4A PMB. If this is not set, legacy | |
243 | 29-bit physical addressing will be used. | |
244 | ||
245 | config VSYSCALL | |
246 | bool "Support vsyscall page" | |
247 | depends on MMU | |
248 | default y | |
249 | help | |
250 | This will enable support for the kernel mapping a vDSO page | |
251 | in process space, and subsequently handing down the entry point | |
252 | to the libc through the ELF auxiliary vector. | |
253 | ||
254 | From the kernel side this is used for the signal trampoline. | |
255 | For systems with an MMU that can afford to give up a page, | |
256 | (the default value) say Y. | |
257 | ||
258 | choice | |
259 | prompt "HugeTLB page size" | |
260 | depends on HUGETLB_PAGE && CPU_SH4 && MMU | |
261 | default HUGETLB_PAGE_SIZE_64K | |
262 | ||
263 | config HUGETLB_PAGE_SIZE_64K | |
264 | bool "64K" | |
265 | ||
266 | config HUGETLB_PAGE_SIZE_1MB | |
267 | bool "1MB" | |
268 | ||
269 | endchoice | |
270 | ||
271 | source "mm/Kconfig" | |
272 | ||
273 | endmenu | |
274 | ||
275 | menu "Cache configuration" | |
276 | ||
277 | config SH7705_CACHE_32KB | |
278 | bool "Enable 32KB cache size for SH7705" | |
279 | depends on CPU_SUBTYPE_SH7705 | |
280 | default y | |
281 | ||
282 | config SH_DIRECT_MAPPED | |
283 | bool "Use direct-mapped caching" | |
284 | default n | |
285 | help | |
286 | Selecting this option will configure the caches to be direct-mapped, | |
287 | even if the cache supports a 2 or 4-way mode. This is useful primarily | |
288 | for debugging on platforms with 2 and 4-way caches (SH7750R/SH7751R, | |
289 | SH4-202, SH4-501, etc.) | |
290 | ||
291 | Turn this option off for platforms that do not have a direct-mapped | |
292 | cache, and you have no need to run the caches in such a configuration. | |
293 | ||
294 | config SH_WRITETHROUGH | |
295 | bool "Use write-through caching" | |
296 | help | |
297 | Selecting this option will configure the caches in write-through | |
298 | mode, as opposed to the default write-back configuration. | |
299 | ||
300 | Since there's sill some aliasing issues on SH-4, this option will | |
301 | unfortunately still require the majority of flushing functions to | |
302 | be implemented to deal with aliasing. | |
303 | ||
304 | If unsure, say N. | |
305 | ||
306 | config SH_OCRAM | |
307 | bool "Operand Cache RAM (OCRAM) support" | |
308 | help | |
309 | Selecting this option will automatically tear down the number of | |
310 | sets in the dcache by half, which in turn exposes a memory range. | |
311 | ||
312 | The addresses for the OC RAM base will vary according to the | |
313 | processor version. Consult vendor documentation for specifics. | |
314 | ||
315 | If unsure, say N. | |
316 | ||
317 | endmenu |