20 select CPU_HAS_PTEA if (!CPU_SUBTYPE_ST40 && !CPU_SH4A) || CPU_SHX2
31 config CPU_SUBTYPE_ST40
34 select CPU_HAS_INTC2_IRQ
43 prompt "Processor sub-type selection"
49 # SH-2 Processor Support
51 config CPU_SUBTYPE_SH7619
52 bool "Support SH7619 processor"
54 select CPU_HAS_IPR_IRQ
56 # SH-2A Processor Support
58 config CPU_SUBTYPE_SH7206
59 bool "Support SH7206 processor"
61 select CPU_HAS_IPR_IRQ
63 # SH-3 Processor Support
65 config CPU_SUBTYPE_SH7705
66 bool "Support SH7705 processor"
68 select CPU_HAS_INTC_IRQ
70 config CPU_SUBTYPE_SH7706
71 bool "Support SH7706 processor"
73 select CPU_HAS_INTC_IRQ
75 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
77 config CPU_SUBTYPE_SH7707
78 bool "Support SH7707 processor"
80 select CPU_HAS_INTC_IRQ
82 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
84 config CPU_SUBTYPE_SH7708
85 bool "Support SH7708 processor"
87 select CPU_HAS_INTC_IRQ
89 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
90 if you have a 100 Mhz SH-3 HD6417708R CPU.
92 config CPU_SUBTYPE_SH7709
93 bool "Support SH7709 processor"
95 select CPU_HAS_INTC_IRQ
97 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
99 config CPU_SUBTYPE_SH7710
100 bool "Support SH7710 processor"
102 select CPU_HAS_INTC_IRQ
105 Select SH7710 if you have a SH3-DSP SH7710 CPU.
107 config CPU_SUBTYPE_SH7712
108 bool "Support SH7712 processor"
110 select CPU_HAS_INTC_IRQ
113 Select SH7712 if you have a SH3-DSP SH7712 CPU.
115 # SH-4 Processor Support
117 config CPU_SUBTYPE_SH7750
118 bool "Support SH7750 processor"
120 select CPU_HAS_INTC_IRQ
122 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
124 config CPU_SUBTYPE_SH7091
125 bool "Support SH7091 processor"
127 select CPU_HAS_INTC_IRQ
129 Select SH7091 if you have an SH-4 based Sega device (such as
130 the Dreamcast, Naomi, and Naomi 2).
132 config CPU_SUBTYPE_SH7750R
133 bool "Support SH7750R processor"
135 select CPU_HAS_INTC_IRQ
137 config CPU_SUBTYPE_SH7750S
138 bool "Support SH7750S processor"
140 select CPU_HAS_INTC_IRQ
142 config CPU_SUBTYPE_SH7751
143 bool "Support SH7751 processor"
145 select CPU_HAS_INTC_IRQ
147 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
148 or if you have a HD6417751R CPU.
150 config CPU_SUBTYPE_SH7751R
151 bool "Support SH7751R processor"
153 select CPU_HAS_INTC_IRQ
155 config CPU_SUBTYPE_SH7760
156 bool "Support SH7760 processor"
158 select CPU_HAS_INTC2_IRQ
159 select CPU_HAS_IPR_IRQ
161 config CPU_SUBTYPE_SH4_202
162 bool "Support SH4-202 processor"
165 # ST40 Processor Support
167 config CPU_SUBTYPE_ST40STB1
168 bool "Support ST40STB1/ST40RA processors"
169 select CPU_SUBTYPE_ST40
171 Select ST40STB1 if you have a ST40RA CPU.
172 This was previously called the ST40STB1, hence the option name.
174 config CPU_SUBTYPE_ST40GX1
175 bool "Support ST40GX1 processor"
176 select CPU_SUBTYPE_ST40
178 Select ST40GX1 if you have a ST40GX1 CPU.
180 # SH-4A Processor Support
182 config CPU_SUBTYPE_SH7770
183 bool "Support SH7770 processor"
186 config CPU_SUBTYPE_SH7780
187 bool "Support SH7780 processor"
189 select CPU_HAS_INTC_IRQ
191 config CPU_SUBTYPE_SH7785
192 bool "Support SH7785 processor"
195 select CPU_HAS_INTC2_IRQ
197 config CPU_SUBTYPE_SHX3
198 bool "Support SH-X3 processor"
201 select CPU_HAS_INTC2_IRQ
203 # SH4AL-DSP Processor Support
205 config CPU_SUBTYPE_SH7343
206 bool "Support SH7343 processor"
209 config CPU_SUBTYPE_SH7722
210 bool "Support SH7722 processor"
213 select CPU_HAS_INTC_IRQ
214 select ARCH_SPARSEMEM_ENABLE
215 select SYS_SUPPORTS_NUMA
219 menu "Memory management options"
225 bool "Support for memory management hardware"
229 Some SH processors (such as SH-2/SH-2A) lack an MMU. In order to
230 boot on these systems, this option must not be set.
232 On other systems (such as the SH-3 and 4) where an MMU exists,
233 turning this off will boot the kernel on these machines with the
234 MMU implicitly switched off.
238 default "0x80000000" if MMU
242 hex "Physical memory start address"
245 Computers built with Hitachi SuperH processors always
246 map the ROM starting at address zero. But the processor
247 does not specify the range that RAM takes.
249 The physical memory (RAM) start address will be automatically
250 set to 08000000. Other platforms, such as the Solution Engine
251 boards typically map RAM at 0C000000.
253 Tweak this only when porting to a new machine which does not
254 already have a defconfig. Changing it from the known correct
255 value on any of the known systems will only lead to disaster.
258 hex "Physical memory size"
261 This sets the default memory size assumed by your SH kernel. It can
262 be overridden as normal by the 'mem=' argument on the kernel command
263 line. If unsure, consult your board specifications or just leave it
264 as 0x00400000 which was the default value before this became
268 bool "Support 32-bit physical addressing through PMB"
269 depends on MMU && (CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785)
272 If you say Y here, physical addressing will be extended to
273 32-bits through the SH-4A PMB. If this is not set, legacy
274 29-bit physical addressing will be used.
277 bool "Enable extended TLB mode"
278 depends on CPU_SHX2 && MMU && EXPERIMENTAL
280 Selecting this option will enable the extended mode of the SH-X2
281 TLB. For legacy SH-X behaviour and interoperability, say N. For
282 all of the fun new features and a willingless to submit bug reports,
286 bool "Support vsyscall page"
290 This will enable support for the kernel mapping a vDSO page
291 in process space, and subsequently handing down the entry point
292 to the libc through the ELF auxiliary vector.
294 From the kernel side this is used for the signal trampoline.
295 For systems with an MMU that can afford to give up a page,
296 (the default value) say Y.
299 bool "Non Uniform Memory Access (NUMA) Support"
300 depends on MMU && SYS_SUPPORTS_NUMA && EXPERIMENTAL
303 Some SH systems have many various memories scattered around
304 the address space, each with varying latencies. This enables
305 support for these blocks by binding them to nodes and allowing
306 memory policies to be used for prioritizing and controlling
307 allocation behaviour.
312 depends on NEED_MULTIPLE_NODES
314 config ARCH_FLATMEM_ENABLE
318 config ARCH_SPARSEMEM_ENABLE
320 select SPARSEMEM_STATIC
322 config ARCH_SPARSEMEM_DEFAULT
325 config MAX_ACTIVE_REGIONS
327 default "2" if (CPU_SUBTYPE_SH7722 && SPARSEMEM)
330 config ARCH_POPULATES_NODE_MAP
333 config ARCH_SELECT_MEMORY_MODEL
336 config ARCH_ENABLE_MEMORY_HOTPLUG
340 config ARCH_MEMORY_PROBE
342 depends on MEMORY_HOTPLUG
345 prompt "Kernel page size"
346 default PAGE_SIZE_4KB
351 This is the default page size used by all SuperH CPUs.
355 depends on EXPERIMENTAL && X2TLB
357 This enables 8kB pages as supported by SH-X2 and later MMUs.
359 config PAGE_SIZE_64KB
361 depends on EXPERIMENTAL && CPU_SH4
363 This enables support for 64kB pages, possible on all SH-4
364 CPUs and later. Highly experimental, not recommended.
369 prompt "HugeTLB page size"
370 depends on HUGETLB_PAGE && CPU_SH4 && MMU
371 default HUGETLB_PAGE_SIZE_64K
373 config HUGETLB_PAGE_SIZE_64K
376 config HUGETLB_PAGE_SIZE_256K
380 config HUGETLB_PAGE_SIZE_1MB
383 config HUGETLB_PAGE_SIZE_4MB
387 config HUGETLB_PAGE_SIZE_64MB
397 menu "Cache configuration"
399 config SH7705_CACHE_32KB
400 bool "Enable 32KB cache size for SH7705"
401 depends on CPU_SUBTYPE_SH7705
404 config SH_DIRECT_MAPPED
405 bool "Use direct-mapped caching"
408 Selecting this option will configure the caches to be direct-mapped,
409 even if the cache supports a 2 or 4-way mode. This is useful primarily
410 for debugging on platforms with 2 and 4-way caches (SH7750R/SH7751R,
411 SH4-202, SH4-501, etc.)
413 Turn this option off for platforms that do not have a direct-mapped
414 cache, and you have no need to run the caches in such a configuration.
418 default CACHE_WRITEBACK if CPU_SH2A || CPU_SH3 || CPU_SH4
419 default CACHE_WRITETHROUGH if (CPU_SH2 && !CPU_SH2A)
421 config CACHE_WRITEBACK
423 depends on CPU_SH2A || CPU_SH3 || CPU_SH4
425 config CACHE_WRITETHROUGH
428 Selecting this option will configure the caches in write-through
429 mode, as opposed to the default write-back configuration.
431 Since there's sill some aliasing issues on SH-4, this option will
432 unfortunately still require the majority of flushing functions to
433 be implemented to deal with aliasing.