1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2006 Maxim Sobolev <sobomax@FreeBSD.org>
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
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 struct sx sc_lock;
51 phandle_t sc_node;
52 void * sc_bank;
53 void * sc_bank0;
54 void * sc_bank1;
55 uint8_t sc_data[NVRAM_SIZE];
56
57 struct cdev * sc_cdev;
58 int sc_type;
59#define FLASH_TYPE_SM 0
60#define FLASH_TYPE_AMD 1
61 int sc_isopen;
62 int sc_rpos;
63 int sc_wpos;
64};
65
66#endif /* _KERNEL */
67
68struct chrp_header {
69 uint8_t signature;
70 uint8_t chrp_checksum;
71 uint16_t length;
72 char name[12];
73};
74
75struct core99_header {
76 struct chrp_header chrp_header;
77 uint32_t adler_checksum;
78 uint32_t generation;
79 uint32_t reserved[2];
80};
81
82#endif /* _POWERPC_POWERMAC_POWERMAC_NVRAMVAR_H_ */