1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3 * (C) Copyright 2009-2013 ADVANSEE
4 * Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
5 *
6 * Based on the mpc512x iim code:
7 * Copyright 2008 Silicon Turnkey Express, Inc.
8 * Martha Marx <mmarx@silicontkx.com>
9 */
10
11 #ifndef _FUSE_H_
12 #define _FUSE_H_
13
14 #include <linux/types.h>
15 #include <linux/errno.h>
16
17 /*
18 * Read/Sense/Program/Override interface:
19 * bank: Fuse bank
20 * word: Fuse word within the bank
21 * val: Value to read/write
22 *
23 * Returns: 0 on success, not 0 on failure
24 */
25 int fuse_read(u32 bank, u32 word, u32 *val);
26 int fuse_sense(u32 bank, u32 word, u32 *val);
27 int fuse_prog(u32 bank, u32 word, u32 val);
28 int fuse_override(u32 bank, u32 word, u32 val);
29 #ifdef CONFIG_CMD_FUSE_WRITEBUFF
30 int fuse_writebuff(ulong addr);
31 #else
fuse_writebuff(ulong addr)32 static inline int fuse_writebuff(ulong addr)
33 {
34 return -EPERM;
35 }
36 #endif /* CONFIG_CMD_FUSE_WRITEBUFF */
37
38 #endif /* _FUSE_H_ */
39