Root/target/linux/adm5120/files/arch/mips/include/asm/mach-adm5120/prom/myloader.h

1/*
2 * Compex's MyLoader specific definitions
3 *
4 * Copyright (C) 2006-2008 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 _MYLOADER_H_
13#define _MYLOADER_H_
14
15/*
16 * Firmware file format:
17 *
18 * <header>
19 * [<block descriptor 0>]
20 * ...
21 * [<block descriptor n>]
22 * <null block descriptor>
23 * [<block data 0>]
24 * ...
25 * [<block data n>]
26 *
27 *
28 */
29
30/* Myloader specific magic numbers */
31#define MYLO_MAGIC_FIRMWARE 0x4C594D00
32#define MYLO_MAGIC_20021103 0x20021103
33#define MYLO_MAGIC_20021107 0x20021107
34
35#define MYLO_MAGIC_SYS_PARAMS MYLO_MAGIC_20021107
36#define MYLO_MAGIC_PARTITIONS MYLO_MAGIC_20021103
37#define MYLO_MAGIC_BOARD_PARAMS MYLO_MAGIC_20021103
38
39/*
40 * Addresses of the data structures provided by MyLoader
41 */
42#define MYLO_MIPS_SYS_PARAMS 0x80000800 /* System Parameters */
43#define MYLO_MIPS_BOARD_PARAMS 0x80000A00 /* Board Parameters */
44#define MYLO_MIPS_PARTITIONS 0x80000C00 /* Partition Table */
45#define MYLO_MIPS_BOOT_PARAMS 0x80000E00 /* Boot Parameters */
46
47/* Vendor ID's (seems to be same as the PCI vendor ID's) */
48#define VENID_COMPEX 0x11F6
49
50/* Devices based on the ADM5120 */
51#define DEVID_COMPEX_NP27G 0x0078
52#define DEVID_COMPEX_NP28G 0x044C
53#define DEVID_COMPEX_NP28GHS 0x044E
54#define DEVID_COMPEX_WP54Gv1C 0x0514
55#define DEVID_COMPEX_WP54G 0x0515
56#define DEVID_COMPEX_WP54AG 0x0546
57#define DEVID_COMPEX_WPP54AG 0x0550
58#define DEVID_COMPEX_WPP54G 0x0555
59
60/* Devices based on the IXP422 */
61#define DEVID_COMPEX_WP18 0x047E
62#define DEVID_COMPEX_NP18A 0x0489
63
64/* Other devices */
65#define DEVID_COMPEX_NP26G8M 0x03E8
66#define DEVID_COMPEX_NP26G16M 0x03E9
67
68struct mylo_fw_header {
69    uint32_t magic; /* must be MYLO_MAGIC_FIRMWARE */
70    uint32_t crc; /* CRC of the whole firmware */
71    uint32_t res0; /* unknown/unused */
72    uint32_t res1; /* unknown/unused */
73    uint16_t vid; /* vendor ID */
74    uint16_t did; /* device ID */
75    uint16_t svid; /* sub vendor ID */
76    uint16_t sdid; /* sub device ID */
77    uint32_t rev; /* device revision */
78    uint32_t fwhi; /* FIXME: firmware version high? */
79    uint32_t fwlo; /* FIXME: firmware version low? */
80    uint32_t flags; /* firmware flags */
81};
82
83#define FW_FLAG_BOARD_PARAMS_WP 0x01 /* board parameters are write protected */
84#define FW_FLAG_BOOT_SECTOR_WE 0x02 /* enable of write boot sectors (below 64K) */
85
86struct mylo_fw_blockdesc {
87    uint32_t type; /* block type */
88    uint32_t addr; /* relative address to flash start */
89    uint32_t dlen; /* size of block data in bytes */
90    uint32_t blen; /* total size of block in bytes */
91};
92
93#define FW_DESC_TYPE_UNUSED 0
94#define FW_DESC_TYPE_USED 1
95
96struct mylo_partition {
97    uint16_t flags; /* partition flags */
98    uint16_t type; /* type of the partition */
99    uint32_t addr; /* relative address of the partition from the
100                   flash start */
101    uint32_t size; /* size of the partition in bytes */
102    uint32_t param; /* if this is the active partition, the
103                   MyLoader load code to this address */
104};
105
106#define PARTITION_FLAG_ACTIVE 0x8000 /* this is the active partition,
107                    * MyLoader loads firmware from here */
108#define PARTITION_FLAG_ISRAM 0x2000 /* FIXME: this is a RAM partition? */
109#define PARTIIION_FLAG_RAMLOAD 0x1000 /* FIXME: load this partition into the RAM? */
110#define PARTITION_FLAG_PRELOAD 0x0800 /* the partition data preloaded to RAM
111                    * before decompression */
112#define PARTITION_FLAG_HAVEHDR 0x0002 /* the partition data have a header */
113
114#define PARTITION_TYPE_FREE 0
115#define PARTITION_TYPE_USED 1
116
117#define MYLO_MAX_PARTITIONS 8 /* maximum number of partitions in the
118                       partition table */
119
120struct mylo_partition_table {
121    uint32_t magic; /* must be MYLO_MAGIC_PARTITIONS */
122    uint32_t res0; /* unknown/unused */
123    uint32_t res1; /* unknown/unused */
124    uint32_t res2; /* unknown/unused */
125    struct mylo_partition partitions[MYLO_MAX_PARTITIONS];
126};
127
128struct mylo_partition_header {
129    uint32_t len; /* length of the partition data */
130    uint32_t crc; /* CRC value of the partition data */
131};
132
133struct mylo_system_params {
134    uint32_t magic; /* must be MYLO_MAGIC_SYS_PARAMS */
135    uint32_t res0;
136    uint32_t res1;
137    uint32_t mylo_ver;
138    uint16_t vid; /* Vendor ID */
139    uint16_t did; /* Device ID */
140    uint16_t svid; /* Sub Vendor ID */
141    uint16_t sdid; /* Sub Device ID */
142    uint32_t rev; /* device revision */
143    uint32_t fwhi;
144    uint32_t fwlo;
145    uint32_t tftp_addr;
146    uint32_t prog_start;
147    uint32_t flash_size; /* Size of boot FLASH in bytes */
148    uint32_t dram_size; /* Size of onboard RAM in bytes */
149};
150
151
152struct mylo_eth_addr {
153    uint8_t mac[6];
154    uint8_t csum[2];
155};
156
157#define MYLO_ETHADDR_COUNT 8 /* maximum number of ethernet address
158                       in the board parameters */
159
160struct mylo_board_params {
161    uint32_t magic; /* must be MYLO_MAGIC_BOARD_PARAMS */
162    uint32_t res0;
163    uint32_t res1;
164    uint32_t res2;
165    struct mylo_eth_addr addr[MYLO_ETHADDR_COUNT];
166};
167
168struct myloader_info {
169    u32 vid;
170    u32 did;
171    u32 svid;
172    u32 sdid;
173    uint8_t macs[MYLO_ETHADDR_COUNT][6];
174};
175
176extern struct myloader_info myloader_info;
177extern int myloader_present(void) __init;
178
179#endif /* _MYLOADER_H_*/
180

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