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 24config CPU_SUBTYPE_ST40 25 bool 26 select CPU_SH4 27 select CPU_HAS_INTC2_IRQ 28 29# 30# Processor subtypes 31# 32 33comment "SH-2 Processor Support" 34 35config CPU_SUBTYPE_SH7604 36 bool "Support SH7604 processor" 37 select CPU_SH2 38 39comment "SH-3 Processor Support" 40 41config CPU_SUBTYPE_SH7300 42 bool "Support SH7300 processor" 43 select CPU_SH3 44 45config CPU_SUBTYPE_SH7705 46 bool "Support SH7705 processor" 47 select CPU_SH3 48 select CPU_HAS_PINT_IRQ 49 50config CPU_SUBTYPE_SH7707 51 bool "Support SH7707 processor" 52 select CPU_SH3 53 select CPU_HAS_PINT_IRQ 54 help 55 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 56 57config CPU_SUBTYPE_SH7708 58 bool "Support SH7708 processor" 59 select CPU_SH3 60 help 61 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 62 if you have a 100 Mhz SH-3 HD6417708R CPU. 63 64config CPU_SUBTYPE_SH7709 65 bool "Support SH7709 processor" 66 select CPU_SH3 67 select CPU_HAS_PINT_IRQ 68 help 69 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 70 71comment "SH-4 Processor Support" 72 73config CPU_SUBTYPE_SH7750 74 bool "Support SH7750 processor" 75 select CPU_SH4 76 help 77 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 78 79config CPU_SUBTYPE_SH7091 80 bool "Support SH7091 processor" 81 select CPU_SH4 82 select CPU_SUBTYPE_SH7750 83 help 84 Select SH7091 if you have an SH-4 based Sega device (such as 85 the Dreamcast, Naomi, and Naomi 2). 86 87config CPU_SUBTYPE_SH7750R 88 bool "Support SH7750R processor" 89 select CPU_SH4 90 select CPU_SUBTYPE_SH7750 91 92config CPU_SUBTYPE_SH7750S 93 bool "Support SH7750S processor" 94 select CPU_SH4 95 select CPU_SUBTYPE_SH7750 96 97config CPU_SUBTYPE_SH7751 98 bool "Support SH7751 processor" 99 select CPU_SH4 100 help 101 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 102 or if you have a HD6417751R CPU. 103 104config CPU_SUBTYPE_SH7751R 105 bool "Support SH7751R processor" 106 select CPU_SH4 107 select CPU_SUBTYPE_SH7751 108 109config CPU_SUBTYPE_SH7760 110 bool "Support SH7760 processor" 111 select CPU_SH4 112 select CPU_HAS_INTC2_IRQ 113 114config CPU_SUBTYPE_SH4_202 115 bool "Support SH4-202 processor" 116 select CPU_SH4 117 118comment "ST40 Processor Support" 119 120config CPU_SUBTYPE_ST40STB1 121 bool "Support ST40STB1/ST40RA processors" 122 select CPU_SUBTYPE_ST40 123 help 124 Select ST40STB1 if you have a ST40RA CPU. 125 This was previously called the ST40STB1, hence the option name. 126 127config CPU_SUBTYPE_ST40GX1 128 bool "Support ST40GX1 processor" 129 select CPU_SUBTYPE_ST40 130 help 131 Select ST40GX1 if you have a ST40GX1 CPU. 132 133comment "SH-4A Processor Support" 134 135config CPU_SUBTYPE_SH73180 136 bool "Support SH73180 processor" 137 select CPU_SH4A 138 139config CPU_SUBTYPE_SH7770 140 bool "Support SH7770 processor" 141 select CPU_SH4A 142 143config CPU_SUBTYPE_SH7780 144 bool "Support SH7780 processor" 145 select CPU_SH4A 146 select CPU_HAS_INTC2_IRQ 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 234