xref: /freebsd/sys/dev/flash/mx25lreg.h (revision 40a8ac8f62b535d30349faf28cf47106b7041b83)
1 /*-
2  * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice unmodified, this list of conditions, and the following
10  *    disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD$
28  */
29 
30 #ifndef __MX25LREG_H__
31 #define __MX25LREG_H__
32 
33 /*
34  * Commands
35  */
36 #define CMD_WRITE_ENABLE	0x06
37 #define CMD_WRITE_DISABLE	0x04
38 #define CMD_READ_IDENT		0x9F
39 #define CMD_READ_STATUS		0x05
40 #define CMD_WRITE_STATUS	0x01
41 #define CMD_READ		0x03
42 #define CMD_FAST_READ		0x0B
43 #define CMD_PAGE_PROGRAM	0x02
44 #define CMD_SECTOR_ERASE	0xD8
45 #define CMD_BULK_ERASE		0xC7
46 #define	CMD_BLOCK_4K_ERASE	0x20
47 #define	CMD_BLOCK_32K_ERASE	0x52
48 
49 /*
50  * Status register flags
51  */
52 #define	STATUS_SRWD	(1 << 7)
53 #define	STATUS_BP2	(1 << 4)
54 #define	STATUS_BP1	(1 << 3)
55 #define	STATUS_BP0	(1 << 2)
56 #define	STATUS_WEL	(1 << 1)
57 #define	STATUS_WIP	(1 << 0)
58 
59 #define	FLASH_PAGE_SIZE	256
60 
61 #endif /* __MX25LREG_H__ */
62 
63