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Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * OMAP cpu type detection
4 *
5 * Copyright (C) 2004, 2008 Nokia Corporation
6 *
7 * Copyright (C) 2009-11 Texas Instruments.
8 *
9 * Written by Tony Lindgren <tony.lindgren@nokia.com>
10 *
11 * Added OMAP4/5 specific defines - Santosh Shilimkar<santosh.shilimkar@ti.com>
12 */
13
14#ifndef __ASM_ARCH_OMAP_CPU_H
15#define __ASM_ARCH_OMAP_CPU_H
16
17/*
18 * Test if multicore OMAP support is needed
19 */
20#undef MULTI_OMAP1
21#undef OMAP_NAME
22
23#ifdef CONFIG_ARCH_OMAP730
24# ifdef OMAP_NAME
25# undef MULTI_OMAP1
26# define MULTI_OMAP1
27# else
28# define OMAP_NAME omap730
29# endif
30#endif
31#ifdef CONFIG_ARCH_OMAP850
32# ifdef OMAP_NAME
33# undef MULTI_OMAP1
34# define MULTI_OMAP1
35# else
36# define OMAP_NAME omap850
37# endif
38#endif
39#ifdef CONFIG_ARCH_OMAP15XX
40# ifdef OMAP_NAME
41# undef MULTI_OMAP1
42# define MULTI_OMAP1
43# else
44# define OMAP_NAME omap1510
45# endif
46#endif
47#ifdef CONFIG_ARCH_OMAP16XX
48# ifdef OMAP_NAME
49# undef MULTI_OMAP1
50# define MULTI_OMAP1
51# else
52# define OMAP_NAME omap16xx
53# endif
54#endif
55
56/*
57 * omap_rev bits:
58 * CPU id bits (0730, 1510, 1710, 2422...) [31:16]
59 * CPU revision (See _REV_ defined in cpu.h) [15:08]
60 * CPU class bits (15xx, 16xx, 24xx, 34xx...) [07:00]
61 */
62unsigned int omap_rev(void);
63
64/*
65 * Get the CPU revision for OMAP devices
66 */
67#define GET_OMAP_REVISION() ((omap_rev() >> 8) & 0xff)
68
69/*
70 * Macros to group OMAP into cpu classes.
71 * These can be used in most places.
72 * cpu_is_omap7xx(): True for OMAP730, OMAP850
73 * cpu_is_omap15xx(): True for OMAP1510, OMAP5910 and OMAP310
74 * cpu_is_omap16xx(): True for OMAP1610, OMAP5912 and OMAP1710
75 */
76#define GET_OMAP_CLASS (omap_rev() & 0xff)
77
78#define IS_OMAP_CLASS(class, id) \
79static inline int is_omap ##class (void) \
80{ \
81 return (GET_OMAP_CLASS == (id)) ? 1 : 0; \
82}
83
84#define GET_OMAP_SUBCLASS ((omap_rev() >> 20) & 0x0fff)
85
86#define IS_OMAP_SUBCLASS(subclass, id) \
87static inline int is_omap ##subclass (void) \
88{ \
89 return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0; \
90}
91
92IS_OMAP_CLASS(7xx, 0x07)
93IS_OMAP_CLASS(15xx, 0x15)
94IS_OMAP_CLASS(16xx, 0x16)
95
96#define cpu_is_omap7xx() 0
97#define cpu_is_omap15xx() 0
98#define cpu_is_omap16xx() 0
99
100#if defined(MULTI_OMAP1)
101# if defined(CONFIG_ARCH_OMAP730)
102# undef cpu_is_omap7xx
103# define cpu_is_omap7xx() is_omap7xx()
104# endif
105# if defined(CONFIG_ARCH_OMAP850)
106# undef cpu_is_omap7xx
107# define cpu_is_omap7xx() is_omap7xx()
108# endif
109# if defined(CONFIG_ARCH_OMAP15XX)
110# undef cpu_is_omap15xx
111# define cpu_is_omap15xx() is_omap15xx()
112# endif
113# if defined(CONFIG_ARCH_OMAP16XX)
114# undef cpu_is_omap16xx
115# define cpu_is_omap16xx() is_omap16xx()
116# endif
117#else
118# if defined(CONFIG_ARCH_OMAP730)
119# undef cpu_is_omap7xx
120# define cpu_is_omap7xx() 1
121# endif
122# if defined(CONFIG_ARCH_OMAP850)
123# undef cpu_is_omap7xx
124# define cpu_is_omap7xx() 1
125# endif
126# if defined(CONFIG_ARCH_OMAP15XX)
127# undef cpu_is_omap15xx
128# define cpu_is_omap15xx() 1
129# endif
130# if defined(CONFIG_ARCH_OMAP16XX)
131# undef cpu_is_omap16xx
132# define cpu_is_omap16xx() 1
133# endif
134#endif
135
136/*
137 * Macros to detect individual cpu types.
138 * These are only rarely needed.
139 * cpu_is_omap310(): True for OMAP310
140 * cpu_is_omap1510(): True for OMAP1510
141 * cpu_is_omap1610(): True for OMAP1610
142 * cpu_is_omap1611(): True for OMAP1611
143 * cpu_is_omap5912(): True for OMAP5912
144 * cpu_is_omap1621(): True for OMAP1621
145 * cpu_is_omap1710(): True for OMAP1710
146 */
147#define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff)
148
149#define IS_OMAP_TYPE(type, id) \
150static inline int is_omap ##type (void) \
151{ \
152 return (GET_OMAP_TYPE == (id)) ? 1 : 0; \
153}
154
155IS_OMAP_TYPE(310, 0x0310)
156IS_OMAP_TYPE(1510, 0x1510)
157IS_OMAP_TYPE(1610, 0x1610)
158IS_OMAP_TYPE(1611, 0x1611)
159IS_OMAP_TYPE(5912, 0x1611)
160IS_OMAP_TYPE(1621, 0x1621)
161IS_OMAP_TYPE(1710, 0x1710)
162
163#define cpu_is_omap310() 0
164#define cpu_is_omap1510() 0
165#define cpu_is_omap1610() 0
166#define cpu_is_omap5912() 0
167#define cpu_is_omap1611() 0
168#define cpu_is_omap1621() 0
169#define cpu_is_omap1710() 0
170
171#define cpu_class_is_omap1() 1
172
173/*
174 * Whether we have MULTI_OMAP1 or not, we still need to distinguish
175 * between 310 vs. 1510 and 1611B/5912 vs. 1710.
176 */
177
178#if defined(CONFIG_ARCH_OMAP15XX)
179# undef cpu_is_omap310
180# undef cpu_is_omap1510
181# define cpu_is_omap310() is_omap310()
182# define cpu_is_omap1510() is_omap1510()
183#endif
184
185#if defined(CONFIG_ARCH_OMAP16XX)
186# undef cpu_is_omap1610
187# undef cpu_is_omap1611
188# undef cpu_is_omap5912
189# undef cpu_is_omap1621
190# undef cpu_is_omap1710
191# define cpu_is_omap1610() is_omap1610()
192# define cpu_is_omap1611() is_omap1611()
193# define cpu_is_omap5912() is_omap5912()
194# define cpu_is_omap1621() is_omap1621()
195# define cpu_is_omap1710() is_omap1710()
196#endif
197
198#endif