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1 office 1 /*
2 * Generic prom definitions
3 *
4 * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published
8 * by the Free Software Foundation.
9 *
10 */
11  
12 #ifndef _ADM5120_PROM_H_
13 #define _ADM5120_PROM_H_
14  
15 /*
16 * Helper routines
17 */
18 static inline u16 prom_read_le16(void *buf)
19 {
20 u8 *p = buf;
21  
22 return ((u16)p[0] + ((u16)p[1] << 8));
23 }
24  
25 static inline u32 prom_read_le32(void *buf)
26 {
27 u8 *p = buf;
28  
29 return ((u32)p[0] + ((u32)p[1] << 8) + ((u32)p[2] << 16) +
30 ((u32)p[3] << 24));
31 }
32  
33 static inline u16 prom_read_be16(void *buf)
34 {
35 u8 *p = buf;
36  
37 return (((u16)p[0] << 8) + (u16)p[1]);
38 }
39  
40 static inline u32 prom_read_be32(void *buf)
41 {
42 u8 *p = buf;
43  
44 return (((u32)p[0] << 24) + ((u32)p[1] << 16) + ((u32)p[2] << 8) +
45 ((u32)p[3]));
46 }
47  
48 #endif /* _ADM5120_PROM_H_ */
49  
50