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 234