1/*
2 * Copyright (c) 2006 Maxim Sobolev <sobomax@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, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
17 * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
18 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
20 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
22 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
23 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
24 * POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD$
27 */
28
29#ifndef	_POWERPC_POWERMAC_POWERMAC_NVRAMVAR_H_
30#define	_POWERPC_POWERMAC_POWERMAC_NVRAMVAR_H_
31
32#define	NVRAM_SIZE		0x2000
33
34#define	CORE99_SIGNATURE	0x5a
35
36#define SM_FLASH_CMD_ERASE_CONFIRM	0xd0
37#define SM_FLASH_CMD_ERASE_SETUP	0x20
38#define SM_FLASH_CMD_RESET		0xff
39#define SM_FLASH_CMD_WRITE_SETUP	0x40
40#define SM_FLASH_CMD_CLEAR_STATUS	0x50
41#define SM_FLASH_CMD_READ_STATUS	0x70
42
43#define SM_FLASH_STATUS_DONE	0x80
44#define SM_FLASH_STATUS_ERR	0x38
45
46#ifdef _KERNEL
47
48struct powermac_nvram_softc {
49	device_t		sc_dev;
50	phandle_t		sc_node;
51	vm_offset_t		sc_bank;
52	vm_offset_t		sc_bank0;
53	vm_offset_t		sc_bank1;
54	uint8_t			sc_data[NVRAM_SIZE];
55
56	struct cdev *		sc_cdev;
57	int			sc_type;
58#define FLASH_TYPE_SM	0
59#define FLASH_TYPE_AMD	1
60	int			sc_isopen;
61	int			sc_rpos;
62	int			sc_wpos;
63};
64
65#endif /* _KERNEL */
66
67struct chrp_header {
68	uint8_t			signature;
69	uint8_t			chrp_checksum;
70	uint16_t		length;
71	char			name[12];
72};
73
74struct core99_header {
75	struct chrp_header	chrp_header;
76	uint32_t		adler_checksum;
77	uint32_t		generation;
78	uint32_t		reserved[2];
79};
80
81#endif  /* _POWERPC_POWERMAC_POWERMAC_NVRAMVAR_H_ */
82