1 menu "Processor selection"
28 config CPU_SUBTYPE_ST40
31 select CPU_HAS_INTC2_IRQ
37 comment "SH-2 Processor Support"
39 config CPU_SUBTYPE_SH7604
40 bool "Support SH7604 processor"
43 comment "SH-3 Processor Support"
45 config CPU_SUBTYPE_SH7300
46 bool "Support SH7300 processor"
49 config CPU_SUBTYPE_SH7705
50 bool "Support SH7705 processor"
52 select CPU_HAS_PINT_IRQ
54 config CPU_SUBTYPE_SH7706
55 bool "Support SH7706 processor"
58 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
60 config CPU_SUBTYPE_SH7707
61 bool "Support SH7707 processor"
63 select CPU_HAS_PINT_IRQ
65 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
67 config CPU_SUBTYPE_SH7708
68 bool "Support SH7708 processor"
71 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
72 if you have a 100 Mhz SH-3 HD6417708R CPU.
74 config CPU_SUBTYPE_SH7709
75 bool "Support SH7709 processor"
77 select CPU_HAS_PINT_IRQ
79 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
81 config CPU_SUBTYPE_SH7710
82 bool "Support SH7710 processor"
85 Select SH7710 if you have a SH3-DSP SH7710 CPU.
87 comment "SH-4 Processor Support"
89 config CPU_SUBTYPE_SH7750
90 bool "Support SH7750 processor"
93 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
95 config CPU_SUBTYPE_SH7091
96 bool "Support SH7091 processor"
98 select CPU_SUBTYPE_SH7750
100 Select SH7091 if you have an SH-4 based Sega device (such as
101 the Dreamcast, Naomi, and Naomi 2).
103 config CPU_SUBTYPE_SH7750R
104 bool "Support SH7750R processor"
106 select CPU_SUBTYPE_SH7750
108 config CPU_SUBTYPE_SH7750S
109 bool "Support SH7750S processor"
111 select CPU_SUBTYPE_SH7750
113 config CPU_SUBTYPE_SH7751
114 bool "Support SH7751 processor"
117 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
118 or if you have a HD6417751R CPU.
120 config CPU_SUBTYPE_SH7751R
121 bool "Support SH7751R processor"
123 select CPU_SUBTYPE_SH7751
125 config CPU_SUBTYPE_SH7760
126 bool "Support SH7760 processor"
128 select CPU_HAS_INTC2_IRQ
130 config CPU_SUBTYPE_SH4_202
131 bool "Support SH4-202 processor"
134 comment "ST40 Processor Support"
136 config CPU_SUBTYPE_ST40STB1
137 bool "Support ST40STB1/ST40RA processors"
138 select CPU_SUBTYPE_ST40
140 Select ST40STB1 if you have a ST40RA CPU.
141 This was previously called the ST40STB1, hence the option name.
143 config CPU_SUBTYPE_ST40GX1
144 bool "Support ST40GX1 processor"
145 select CPU_SUBTYPE_ST40
147 Select ST40GX1 if you have a ST40GX1 CPU.
149 comment "SH-4A Processor Support"
151 config CPU_SUBTYPE_SH7770
152 bool "Support SH7770 processor"
155 config CPU_SUBTYPE_SH7780
156 bool "Support SH7780 processor"
158 select CPU_HAS_INTC2_IRQ
160 comment "SH4AL-DSP Processor Support"
162 config CPU_SUBTYPE_SH73180
163 bool "Support SH73180 processor"
166 config CPU_SUBTYPE_SH7343
167 bool "Support SH7343 processor"
172 menu "Memory management options"
175 bool "Support for memory management hardware"
179 Some SH processors (such as SH-2/SH-2A) lack an MMU. In order to
180 boot on these systems, this option must not be set.
182 On other systems (such as the SH-3 and 4) where an MMU exists,
183 turning this off will boot the kernel on these machines with the
184 MMU implicitly switched off.
188 default "0x80000000" if MMU
192 hex "Physical memory start address"
195 Computers built with Hitachi SuperH processors always
196 map the ROM starting at address zero. But the processor
197 does not specify the range that RAM takes.
199 The physical memory (RAM) start address will be automatically
200 set to 08000000. Other platforms, such as the Solution Engine
201 boards typically map RAM at 0C000000.
203 Tweak this only when porting to a new machine which does not
204 already have a defconfig. Changing it from the known correct
205 value on any of the known systems will only lead to disaster.
208 hex "Physical memory size"
211 This sets the default memory size assumed by your SH kernel. It can
212 be overridden as normal by the 'mem=' argument on the kernel command
213 line. If unsure, consult your board specifications or just leave it
214 as 0x00400000 which was the default value before this became
218 bool "Support 32-bit physical addressing through PMB"
219 depends on CPU_SH4A && MMU
222 If you say Y here, physical addressing will be extended to
223 32-bits through the SH-4A PMB. If this is not set, legacy
224 29-bit physical addressing will be used.
227 bool "Support vsyscall page"
231 This will enable support for the kernel mapping a vDSO page
232 in process space, and subsequently handing down the entry point
233 to the libc through the ELF auxiliary vector.
235 From the kernel side this is used for the signal trampoline.
236 For systems with an MMU that can afford to give up a page,
237 (the default value) say Y.
240 prompt "HugeTLB page size"
241 depends on HUGETLB_PAGE && CPU_SH4 && MMU
242 default HUGETLB_PAGE_SIZE_64K
244 config HUGETLB_PAGE_SIZE_64K
247 config HUGETLB_PAGE_SIZE_1MB
256 menu "Cache configuration"
258 config SH7705_CACHE_32KB
259 bool "Enable 32KB cache size for SH7705"
260 depends on CPU_SUBTYPE_SH7705
263 config SH_DIRECT_MAPPED
264 bool "Use direct-mapped caching"
267 Selecting this option will configure the caches to be direct-mapped,
268 even if the cache supports a 2 or 4-way mode. This is useful primarily
269 for debugging on platforms with 2 and 4-way caches (SH7750R/SH7751R,
270 SH4-202, SH4-501, etc.)
272 Turn this option off for platforms that do not have a direct-mapped
273 cache, and you have no need to run the caches in such a configuration.
275 config SH_WRITETHROUGH
276 bool "Use write-through caching"
279 Selecting this option will configure the caches in write-through
280 mode, as opposed to the default write-back configuration.
282 Since there's sill some aliasing issues on SH-4, this option will
283 unfortunately still require the majority of flushing functions to
284 be implemented to deal with aliasing.
289 bool "Operand Cache RAM (OCRAM) support"
291 Selecting this option will automatically tear down the number of
292 sets in the dcache by half, which in turn exposes a memory range.
294 The addresses for the OC RAM base will vary according to the
295 processor version. Consult vendor documentation for specifics.