1/* 2 * linux/include/asm-arm/arch-omap/cpu.h 3 * 4 * OMAP cpu type detection 5 * 6 * Copyright (C) 2004 Nokia Corporation 7 * 8 * Written by Tony Lindgren <tony.lindgren@nokia.com> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 23 * 24 */ 25 26#ifndef __ASM_ARCH_OMAP_CPU_H 27#define __ASM_ARCH_OMAP_CPU_H 28 29extern unsigned int system_rev; 30 31#define omap2_cpu_rev() ((system_rev >> 8) & 0x0f) 32 33/* 34 * Test if multicore OMAP support is needed 35 */ 36#undef MULTI_OMAP1 37#undef MULTI_OMAP2 38#undef OMAP_NAME 39 40#ifdef CONFIG_ARCH_OMAP730 41# ifdef OMAP_NAME 42# undef MULTI_OMAP1 43# define MULTI_OMAP1 44# else 45# define OMAP_NAME omap730 46# endif 47#endif 48#ifdef CONFIG_ARCH_OMAP15XX 49# ifdef OMAP_NAME 50# undef MULTI_OMAP1 51# define MULTI_OMAP1 52# else 53# define OMAP_NAME omap1510 54# endif 55#endif 56#ifdef CONFIG_ARCH_OMAP16XX 57# ifdef OMAP_NAME 58# undef MULTI_OMAP1 59# define MULTI_OMAP1 60# else 61# define OMAP_NAME omap16xx 62# endif 63#endif 64#ifdef CONFIG_ARCH_OMAP24XX 65# if (defined(OMAP_NAME) || defined(MULTI_OMAP1)) 66# error "OMAP1 and OMAP2 can't be selected at the same time" 67# else 68# undef MULTI_OMAP2 69# define OMAP_NAME omap24xx 70# endif 71#endif 72 73/* 74 * Macros to group OMAP into cpu classes. 75 * These can be used in most places. 76 * cpu_is_omap7xx(): True for OMAP730 77 * cpu_is_omap15xx(): True for OMAP1510, OMAP5910 and OMAP310 78 * cpu_is_omap16xx(): True for OMAP1610, OMAP5912 and OMAP1710 79 * cpu_is_omap24xx(): True for OMAP2420, OMAP2422, OMAP2423, OMAP2430 80 * cpu_is_omap242x(): True for OMAP2420, OMAP2422, OMAP2423 81 * cpu_is_omap243x(): True for OMAP2430 82 */ 83#define GET_OMAP_CLASS (system_rev & 0xff) 84 85#define IS_OMAP_CLASS(class, id) \ 86static inline int is_omap ##class (void) \ 87{ \ 88 return (GET_OMAP_CLASS == (id)) ? 1 : 0; \ 89} 90 91#define GET_OMAP_SUBCLASS ((system_rev >> 20) & 0x0fff) 92 93#define IS_OMAP_SUBCLASS(subclass, id) \ 94static inline int is_omap ##subclass (void) \ 95{ \ 96 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \ 97} 98 99IS_OMAP_CLASS(7xx, 0x07) 100IS_OMAP_CLASS(15xx, 0x15) 101IS_OMAP_CLASS(16xx, 0x16) 102IS_OMAP_CLASS(24xx, 0x24) 103 104IS_OMAP_SUBCLASS(242x, 0x242) 105IS_OMAP_SUBCLASS(243x, 0x243) 106 107#define cpu_is_omap7xx() 0 108#define cpu_is_omap15xx() 0 109#define cpu_is_omap16xx() 0 110#define cpu_is_omap24xx() 0 111#define cpu_is_omap242x() 0 112#define cpu_is_omap243x() 0 113 114#if defined(MULTI_OMAP1) 115# if defined(CONFIG_ARCH_OMAP730) 116# undef cpu_is_omap7xx 117# define cpu_is_omap7xx() is_omap7xx() 118# endif 119# if defined(CONFIG_ARCH_OMAP15XX) 120# undef cpu_is_omap15xx 121# define cpu_is_omap15xx() is_omap15xx() 122# endif 123# if defined(CONFIG_ARCH_OMAP16XX) 124# undef cpu_is_omap16xx 125# define cpu_is_omap16xx() is_omap16xx() 126# endif 127#else 128# if defined(CONFIG_ARCH_OMAP730) 129# undef cpu_is_omap7xx 130# define cpu_is_omap7xx() 1 131# endif 132# if defined(CONFIG_ARCH_OMAP15XX) 133# undef cpu_is_omap15xx 134# define cpu_is_omap15xx() 1 135# endif 136# if defined(CONFIG_ARCH_OMAP16XX) 137# undef cpu_is_omap16xx 138# define cpu_is_omap16xx() 1 139# endif 140# if defined(CONFIG_ARCH_OMAP24XX) 141# undef cpu_is_omap24xx 142# undef cpu_is_omap242x 143# undef cpu_is_omap243x 144# define cpu_is_omap24xx() 1 145# define cpu_is_omap242x() is_omap242x() 146# define cpu_is_omap243x() is_omap243x() 147# endif 148#endif 149 150/* 151 * Macros to detect individual cpu types. 152 * These are only rarely needed. 153 * cpu_is_omap330(): True for OMAP330 154 * cpu_is_omap730(): True for OMAP730 155 * cpu_is_omap1510(): True for OMAP1510 156 * cpu_is_omap1610(): True for OMAP1610 157 * cpu_is_omap1611(): True for OMAP1611 158 * cpu_is_omap5912(): True for OMAP5912 159 * cpu_is_omap1621(): True for OMAP1621 160 * cpu_is_omap1710(): True for OMAP1710 161 * cpu_is_omap2420(): True for OMAP2420 162 * cpu_is_omap2422(): True for OMAP2422 163 * cpu_is_omap2423(): True for OMAP2423 164 * cpu_is_omap2430(): True for OMAP2430 165 */ 166#define GET_OMAP_TYPE ((system_rev >> 16) & 0xffff) 167 168#define IS_OMAP_TYPE(type, id) \ 169static inline int is_omap ##type (void) \ 170{ \ 171 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \ 172} 173 174IS_OMAP_TYPE(310, 0x0310) 175IS_OMAP_TYPE(730, 0x0730) 176IS_OMAP_TYPE(1510, 0x1510) 177IS_OMAP_TYPE(1610, 0x1610) 178IS_OMAP_TYPE(1611, 0x1611) 179IS_OMAP_TYPE(5912, 0x1611) 180IS_OMAP_TYPE(1621, 0x1621) 181IS_OMAP_TYPE(1710, 0x1710) 182IS_OMAP_TYPE(2420, 0x2420) 183IS_OMAP_TYPE(2422, 0x2422) 184IS_OMAP_TYPE(2423, 0x2423) 185IS_OMAP_TYPE(2430, 0x2430) 186 187#define cpu_is_omap310() 0 188#define cpu_is_omap730() 0 189#define cpu_is_omap1510() 0 190#define cpu_is_omap1610() 0 191#define cpu_is_omap5912() 0 192#define cpu_is_omap1611() 0 193#define cpu_is_omap1621() 0 194#define cpu_is_omap1710() 0 195#define cpu_is_omap2420() 0 196#define cpu_is_omap2422() 0 197#define cpu_is_omap2423() 0 198#define cpu_is_omap2430() 0 199 200#if defined(MULTI_OMAP1) 201# if defined(CONFIG_ARCH_OMAP730) 202# undef cpu_is_omap730 203# define cpu_is_omap730() is_omap730() 204# endif 205#else 206# if defined(CONFIG_ARCH_OMAP730) 207# undef cpu_is_omap730 208# define cpu_is_omap730() 1 209# endif 210#endif 211 212/* 213 * Whether we have MULTI_OMAP1 or not, we still need to distinguish 214 * between 330 vs. 1510 and 1611B/5912 vs. 1710. 215 */ 216#if defined(CONFIG_ARCH_OMAP15XX) 217# undef cpu_is_omap310 218# undef cpu_is_omap1510 219# define cpu_is_omap310() is_omap310() 220# define cpu_is_omap1510() is_omap1510() 221#endif 222 223#if defined(CONFIG_ARCH_OMAP16XX) 224# undef cpu_is_omap1610 225# undef cpu_is_omap1611 226# undef cpu_is_omap5912 227# undef cpu_is_omap1621 228# undef cpu_is_omap1710 229# define cpu_is_omap1610() is_omap1610() 230# define cpu_is_omap1611() is_omap1611() 231# define cpu_is_omap5912() is_omap5912() 232# define cpu_is_omap1621() is_omap1621() 233# define cpu_is_omap1710() is_omap1710() 234#endif 235 236#if defined(CONFIG_ARCH_OMAP24XX) 237# undef cpu_is_omap2420 238# undef cpu_is_omap2422 239# undef cpu_is_omap2423 240# undef cpu_is_omap2430 241# define cpu_is_omap2420() is_omap2420() 242# define cpu_is_omap2422() is_omap2422() 243# define cpu_is_omap2423() is_omap2423() 244# define cpu_is_omap2430() is_omap2430() 245#endif 246 247/* Macros to detect if we have OMAP1 or OMAP2 */ 248#define cpu_class_is_omap1() (cpu_is_omap730() || cpu_is_omap15xx() || \ 249 cpu_is_omap16xx()) 250#define cpu_class_is_omap2() cpu_is_omap24xx() 251 252#endif 253