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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