1 /* 2 * OMAP cpu type detection 3 * 4 * Copyright (C) 2004, 2008 Nokia Corporation 5 * 6 * Copyright (C) 2009-11 Texas Instruments. 7 * 8 * Written by Tony Lindgren <tony.lindgren@nokia.com> 9 * 10 * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com> 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; either version 2 of the License, or 15 * (at your option) any later version. 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 25 * 26 */ 27 28 #ifndef __ASM_ARCH_OMAP_CPU_H 29 #define __ASM_ARCH_OMAP_CPU_H 30 31 #ifndef __ASSEMBLY__ 32 33 #include <linux/bitops.h> 34 35 /* 36 * Test if multicore OMAP support is needed 37 */ 38 #undef MULTI_OMAP1 39 #undef OMAP_NAME 40 41 #ifdef CONFIG_ARCH_OMAP730 42 # ifdef OMAP_NAME 43 # undef MULTI_OMAP1 44 # define MULTI_OMAP1 45 # else 46 # define OMAP_NAME omap730 47 # endif 48 #endif 49 #ifdef CONFIG_ARCH_OMAP850 50 # ifdef OMAP_NAME 51 # undef MULTI_OMAP1 52 # define MULTI_OMAP1 53 # else 54 # define OMAP_NAME omap850 55 # endif 56 #endif 57 #ifdef CONFIG_ARCH_OMAP15XX 58 # ifdef OMAP_NAME 59 # undef MULTI_OMAP1 60 # define MULTI_OMAP1 61 # else 62 # define OMAP_NAME omap1510 63 # endif 64 #endif 65 #ifdef CONFIG_ARCH_OMAP16XX 66 # ifdef OMAP_NAME 67 # undef MULTI_OMAP1 68 # define MULTI_OMAP1 69 # else 70 # define OMAP_NAME omap16xx 71 # endif 72 #endif 73 74 /* 75 * omap_rev bits: 76 * CPU id bits (0730, 1510, 1710, 2422...) [31:16] 77 * CPU revision (See _REV_ defined in cpu.h) [15:08] 78 * CPU class bits (15xx, 16xx, 24xx, 34xx...) [07:00] 79 */ 80 unsigned int omap_rev(void); 81 82 /* 83 * Get the CPU revision for OMAP devices 84 */ 85 #define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff) 86 87 /* 88 * Macros to group OMAP into cpu classes. 89 * These can be used in most places. 90 * cpu_is_omap7xx(): True for OMAP730, OMAP850 91 * cpu_is_omap15xx(): True for OMAP1510, OMAP5910 and OMAP310 92 * cpu_is_omap16xx(): True for OMAP1610, OMAP5912 and OMAP1710 93 */ 94 #define GET_OMAP_CLASS (omap_rev() & 0xff) 95 96 #define IS_OMAP_CLASS(class, id) \ 97 static inline int is_omap ##class (void) \ 98 { \ 99 return (GET_OMAP_CLASS == (id)) ? 1 : 0; \ 100 } 101 102 #define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff) 103 104 #define IS_OMAP_SUBCLASS(subclass, id) \ 105 static inline int is_omap ##subclass (void) \ 106 { \ 107 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 108 } 109 110 IS_OMAP_CLASS(7xx, 0x07) 111 IS_OMAP_CLASS(15xx, 0x15) 112 IS_OMAP_CLASS(16xx, 0x16) 113 114 #define cpu_is_omap7xx() 0 115 #define cpu_is_omap15xx() 0 116 #define cpu_is_omap16xx() 0 117 118 #if defined(MULTI_OMAP1) 119 # if defined(CONFIG_ARCH_OMAP730) 120 # undef cpu_is_omap7xx 121 # define cpu_is_omap7xx() is_omap7xx() 122 # endif 123 # if defined(CONFIG_ARCH_OMAP850) 124 # undef cpu_is_omap7xx 125 # define cpu_is_omap7xx() is_omap7xx() 126 # endif 127 # if defined(CONFIG_ARCH_OMAP15XX) 128 # undef cpu_is_omap15xx 129 # define cpu_is_omap15xx() is_omap15xx() 130 # endif 131 # if defined(CONFIG_ARCH_OMAP16XX) 132 # undef cpu_is_omap16xx 133 # define cpu_is_omap16xx() is_omap16xx() 134 # endif 135 #else 136 # if defined(CONFIG_ARCH_OMAP730) 137 # undef cpu_is_omap7xx 138 # define cpu_is_omap7xx() 1 139 # endif 140 # if defined(CONFIG_ARCH_OMAP850) 141 # undef cpu_is_omap7xx 142 # define cpu_is_omap7xx() 1 143 # endif 144 # if defined(CONFIG_ARCH_OMAP15XX) 145 # undef cpu_is_omap15xx 146 # define cpu_is_omap15xx() 1 147 # endif 148 # if defined(CONFIG_ARCH_OMAP16XX) 149 # undef cpu_is_omap16xx 150 # define cpu_is_omap16xx() 1 151 # endif 152 #endif 153 154 /* 155 * Macros to detect individual cpu types. 156 * These are only rarely needed. 157 * cpu_is_omap310(): True for OMAP310 158 * cpu_is_omap1510(): True for OMAP1510 159 * cpu_is_omap1610(): True for OMAP1610 160 * cpu_is_omap1611(): True for OMAP1611 161 * cpu_is_omap5912(): True for OMAP5912 162 * cpu_is_omap1621(): True for OMAP1621 163 * cpu_is_omap1710(): True for OMAP1710 164 */ 165 #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff) 166 167 #define IS_OMAP_TYPE(type, id) \ 168 static inline int is_omap ##type (void) \ 169 { \ 170 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \ 171 } 172 173 IS_OMAP_TYPE(310, 0x0310) 174 IS_OMAP_TYPE(1510, 0x1510) 175 IS_OMAP_TYPE(1610, 0x1610) 176 IS_OMAP_TYPE(1611, 0x1611) 177 IS_OMAP_TYPE(5912, 0x1611) 178 IS_OMAP_TYPE(1621, 0x1621) 179 IS_OMAP_TYPE(1710, 0x1710) 180 181 #define cpu_is_omap310() 0 182 #define cpu_is_omap1510() 0 183 #define cpu_is_omap1610() 0 184 #define cpu_is_omap5912() 0 185 #define cpu_is_omap1611() 0 186 #define cpu_is_omap1621() 0 187 #define cpu_is_omap1710() 0 188 189 /* These are needed to compile common code */ 190 #ifdef CONFIG_ARCH_OMAP1 191 #define cpu_is_omap242x() 0 192 #define cpu_is_omap2430() 0 193 #define cpu_is_omap243x() 0 194 #define cpu_is_omap24xx() 0 195 #define cpu_is_omap34xx() 0 196 #define cpu_is_omap44xx() 0 197 #define soc_is_omap54xx() 0 198 #define soc_is_dra7xx() 0 199 #define soc_is_am33xx() 0 200 #define cpu_class_is_omap1() 1 201 #define cpu_class_is_omap2() 0 202 #endif 203 204 /* 205 * Whether we have MULTI_OMAP1 or not, we still need to distinguish 206 * between 310 vs. 1510 and 1611B/5912 vs. 1710. 207 */ 208 209 #if defined(CONFIG_ARCH_OMAP15XX) 210 # undef cpu_is_omap310 211 # undef cpu_is_omap1510 212 # define cpu_is_omap310() is_omap310() 213 # define cpu_is_omap1510() is_omap1510() 214 #endif 215 216 #if defined(CONFIG_ARCH_OMAP16XX) 217 # undef cpu_is_omap1610 218 # undef cpu_is_omap1611 219 # undef cpu_is_omap5912 220 # undef cpu_is_omap1621 221 # undef cpu_is_omap1710 222 # define cpu_is_omap1610() is_omap1610() 223 # define cpu_is_omap1611() is_omap1611() 224 # define cpu_is_omap5912() is_omap5912() 225 # define cpu_is_omap1621() is_omap1621() 226 # define cpu_is_omap1710() is_omap1710() 227 #endif 228 229 #endif /* __ASSEMBLY__ */ 230 #endif 231