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review.evervolv.com / android_kernel_htc_msm8960 / 124b51c7a8a2b47f1c4739905a28ab3ea5f17faa / . / arch / sh / mm / Kconfig
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Paul Mundtcad82442006-01-16 22:14:19 -0800[diff] [blame]1menu "Processor selection"
2
3#
4# Processor families
5#
6config CPU_SH2
7 bool
8 select SH_WRITETHROUGH
9
10config CPU_SH3
11 bool
12 select CPU_HAS_INTEVT
13 select CPU_HAS_SR_RB
14
15config CPU_SH4
16 bool
17 select CPU_HAS_INTEVT
18 select CPU_HAS_SR_RB
19
20config CPU_SH4A
21 bool
22 select CPU_SH4
23 select CPU_HAS_INTC2_IRQ
24
25config CPU_SUBTYPE_ST40
26 bool
27 select CPU_SH4
28 select CPU_HAS_INTC2_IRQ
29
30#
31# Processor subtypes
32#
33
34comment "SH-2 Processor Support"
35
36config CPU_SUBTYPE_SH7604
37 bool "Support SH7604 processor"
38 select CPU_SH2
39
40comment "SH-3 Processor Support"
41
42config CPU_SUBTYPE_SH7300
43 bool "Support SH7300 processor"
44 select CPU_SH3
45
46config CPU_SUBTYPE_SH7705
47 bool "Support SH7705 processor"
48 select CPU_SH3
49 select CPU_HAS_PINT_IRQ
50
51config CPU_SUBTYPE_SH7707
52 bool "Support SH7707 processor"
53 select CPU_SH3
54 select CPU_HAS_PINT_IRQ
55 help
56 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
57
58config CPU_SUBTYPE_SH7708
59 bool "Support SH7708 processor"
60 select CPU_SH3
61 help
62 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
63 if you have a 100 Mhz SH-3 HD6417708R CPU.
64
65config CPU_SUBTYPE_SH7709
66 bool "Support SH7709 processor"
67 select CPU_SH3
68 select CPU_HAS_PINT_IRQ
69 help
70 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
71
72comment "SH-4 Processor Support"
73
74config CPU_SUBTYPE_SH7750
75 bool "Support SH7750 processor"
76 select CPU_SH4
77 help
78 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
79
80config CPU_SUBTYPE_SH7091
81 bool "Support SH7091 processor"
82 select CPU_SH4
83 select CPU_SUBTYPE_SH7750
84 help
85 Select SH7091 if you have an SH-4 based Sega device (such as
86 the Dreamcast, Naomi, and Naomi 2).
87
88config CPU_SUBTYPE_SH7750R
89 bool "Support SH7750R processor"
90 select CPU_SH4
91 select CPU_SUBTYPE_SH7750
92
93config CPU_SUBTYPE_SH7750S
94 bool "Support SH7750S processor"
95 select CPU_SH4
96 select CPU_SUBTYPE_SH7750
97
98config CPU_SUBTYPE_SH7751
99 bool "Support SH7751 processor"
100 select CPU_SH4
101 help
102 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
103 or if you have a HD6417751R CPU.
104
105config CPU_SUBTYPE_SH7751R
106 bool "Support SH7751R processor"
107 select CPU_SH4
108 select CPU_SUBTYPE_SH7751
109
110config CPU_SUBTYPE_SH7760
111 bool "Support SH7760 processor"
112 select CPU_SH4
113 select CPU_HAS_INTC2_IRQ
114
115config CPU_SUBTYPE_SH4_202
116 bool "Support SH4-202 processor"
117 select CPU_SH4
118
119comment "ST40 Processor Support"
120
121config CPU_SUBTYPE_ST40STB1
122 bool "Support ST40STB1/ST40RA processors"
123 select CPU_SUBTYPE_ST40
124 help
125 Select ST40STB1 if you have a ST40RA CPU.
126 This was previously called the ST40STB1, hence the option name.
127
128config CPU_SUBTYPE_ST40GX1
129 bool "Support ST40GX1 processor"
130 select CPU_SUBTYPE_ST40
131 help
132 Select ST40GX1 if you have a ST40GX1 CPU.
133
134comment "SH-4A Processor Support"
135
136config CPU_SUBTYPE_SH73180
137 bool "Support SH73180 processor"
138 select CPU_SH4A
139
140config CPU_SUBTYPE_SH7770
141 bool "Support SH7770 processor"
142 select CPU_SH4A
143
144config CPU_SUBTYPE_SH7780
145 bool "Support SH7780 processor"
146 select CPU_SH4A
147
148endmenu
149
150menu "Memory management options"
151
152config MMU
153 bool "Support for memory management hardware"
154 depends on !CPU_SH2
155 default y
156 help
157 Some SH processors (such as SH-2/SH-2A) lack an MMU. In order to
158 boot on these systems, this option must not be set.
159
160 On other systems (such as the SH-3 and 4) where an MMU exists,
161 turning this off will boot the kernel on these machines with the
162 MMU implicitly switched off.
163
164config 32BIT
165 bool "Support 32-bit physical addressing through PMB"
166 depends on CPU_SH4A
167 default y
168 help
169 If you say Y here, physical addressing will be extended to
170 32-bits through the SH-4A PMB. If this is not set, legacy
171 29-bit physical addressing will be used.
172
173choice
174 prompt "HugeTLB page size"
175 depends on HUGETLB_PAGE && CPU_SH4 && MMU
176 default HUGETLB_PAGE_SIZE_64K
177
178config HUGETLB_PAGE_SIZE_64K
179 bool "64K"
180
181config HUGETLB_PAGE_SIZE_1MB
182 bool "1MB"
183
184endchoice
185
186source "mm/Kconfig"
187
188endmenu
189
190menu "Cache configuration"
191
192config SH7705_CACHE_32KB
193 bool "Enable 32KB cache size for SH7705"
194 depends on CPU_SUBTYPE_SH7705
195 default y
196
197config SH_DIRECT_MAPPED
198 bool "Use direct-mapped caching"
199 default n
200 help
201 Selecting this option will configure the caches to be direct-mapped,
202 even if the cache supports a 2 or 4-way mode. This is useful primarily
203 for debugging on platforms with 2 and 4-way caches (SH7750R/SH7751R,
204 SH4-202, SH4-501, etc.)
205
206 Turn this option off for platforms that do not have a direct-mapped
207 cache, and you have no need to run the caches in such a configuration.
208
209config SH_WRITETHROUGH
210 bool "Use write-through caching"
211 default y if CPU_SH2
212 help
213 Selecting this option will configure the caches in write-through
214 mode, as opposed to the default write-back configuration.
215
216 Since there's sill some aliasing issues on SH-4, this option will
217 unfortunately still require the majority of flushing functions to
218 be implemented to deal with aliasing.
219
220 If unsure, say N.
221
222config SH_OCRAM
223 bool "Operand Cache RAM (OCRAM) support"
224 help
225 Selecting this option will automatically tear down the number of
226 sets in the dcache by half, which in turn exposes a memory range.
227
228 The addresses for the OC RAM base will vary according to the
229 processor version. Consult vendor documentation for specifics.
230
231 If unsure, say N.
232
233endmenu