xref: /freebsd/sys/arm/ti/ti_cpuid.h (revision 10bb91672a02b646e6dad6cdfe10ff75a192db99)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2011
5  *	Ben Gray <ben.r.gray@gmail.com>.
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #ifndef _TI_CPUID_H_
31 #define	_TI_CPUID_H_
32 
33 #define	AM335X_DEVREV(x)	((x) >> 28)
34 
35 #define	CHIP_AM335X	1
36 
37 extern int _ti_chip;
38 
ti_chip(void)39 static __inline int ti_chip(void)
40 {
41 	KASSERT(_ti_chip != -1, ("Can't determine TI Chip"));
42 	return _ti_chip;
43 }
44 
45 uint32_t ti_revision(void);
46 
ti_soc_is_supported(void)47 static __inline bool ti_soc_is_supported(void)
48 {
49 
50 	return (_ti_chip != -1);
51 }
52 
53 #endif  /* _TI_CPUID_H_ */
54