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

   1 /*
   2  *  $Id$
   3  *
   4  *  Compex's MyLoader specific definitions
   5  *
   6  *  Copyright (C) 2006,2007 Gabor Juhos <juhosg at openwrt.org>
   7  *  Copyright (C) 2007 OpenWrt.org
   8  *
   9  *  This program is free software; you can redistribute it and/or
  10  *  modify it under the terms of the GNU General Public License
  11  *  as published by the Free Software Foundation; either version 2
  12  *  of the License, or (at your option) any later version.
  13  *
  14  *  This program is distributed in the hope that it will be useful,
  15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *  GNU General Public License for more details.
  18  *
  19  *  You should have received a copy of the GNU General Public License
  20  *  along with this program; if not, write to the
  21  *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  22  *  Boston, MA  02110-1301, USA.
  23  */
  24
  25 #ifndef _MYLOADER_H_
  26 #define _MYLOADER_H_
  27
  28 /*
  29  * Firmware file format:
  30  *
  31  *      <header>
  32  *      [<block descriptor 0>]
  33  *      ...
  34  *      [<block descriptor n>]
  35  *      <null block descriptor>
  36  *      [<block data 0>]
  37  *      ...
  38  *      [<block data n>]
  39  *
  40  *
  41  */
  42
  43 /* Myloader specific magic numbers */
  44 #define MYLO_MAGIC_FIRMWARE     0x4C594D00
  45 #define MYLO_MAGIC_20021103     0x20021103
  46 #define MYLO_MAGIC_20021107     0x20021107
  47
  48 #define MYLO_MAGIC_SYS_PARAMS   MYLO_MAGIC_20021107
  49 #define MYLO_MAGIC_PARTITIONS   MYLO_MAGIC_20021103
  50 #define MYLO_MAGIC_BOARD_PARAMS MYLO_MAGIC_20021103
  51
  52 /*
  53  * Addresses of the data structures provided by MyLoader
  54  */
  55 #define MYLO_MIPS_SYS_PARAMS    0x80000800      /* System Parameters */
  56 #define MYLO_MIPS_BOARD_PARAMS  0x80000A00      /* Board Parameters */
  57 #define MYLO_MIPS_PARTITIONS    0x80000C00      /* Partition Table */
  58 #define MYLO_MIPS_BOOT_PARAMS   0x80000E00      /* Boot Parameters */
  59
  60 /* Vendor ID's (seems to be same as the PCI vendor ID's) */
  61 #define VENID_COMPEX            0x11F6
  62
  63 /* Devices based on the ADM5120 */
  64 #define DEVID_COMPEX_NP27G      0x0078
  65 #define DEVID_COMPEX_NP28G      0x044C
  66 #define DEVID_COMPEX_NP28GHS    0x044E
  67 #define DEVID_COMPEX_WP54Gv1C   0x0514
  68 #define DEVID_COMPEX_WP54G      0x0515
  69 #define DEVID_COMPEX_WP54AG     0x0546
  70 #define DEVID_COMPEX_WPP54AG    0x0550
  71 #define DEVID_COMPEX_WPP54G     0x0555
  72
  73 /* Devices based on the IXP422 */
  74 #define DEVID_COMPEX_WP18       0x047E
  75 #define DEVID_COMPEX_NP18A      0x0489
  76
  77 /* Other devices */
  78 #define DEVID_COMPEX_NP26G8M    0x03E8
  79 #define DEVID_COMPEX_NP26G16M   0x03E9
  80
  81 struct mylo_fw_header {
  82         uint32_t        magic;  /* must be MYLO_MAGIC_FIRMWARE */
  83         uint32_t        crc;    /* CRC of the whole firmware */
  84         uint32_t        res0;   /* unknown/unused */
  85         uint32_t        res1;   /* unknown/unused */
  86         uint16_t        vid;    /* vendor ID */
  87         uint16_t        did;    /* device ID */
  88         uint16_t        svid;   /* sub vendor ID */
  89         uint16_t        sdid;   /* sub device ID */
  90         uint32_t        rev;    /* device revision */
  91         uint32_t        fwhi;   /* FIXME: firmware version high? */
  92         uint32_t        fwlo;   /* FIXME: firmware version low? */
  93         uint32_t        flags;  /* firmware flags */
  94 };
  95
  96 #define FW_FLAG_BOARD_PARAMS_WP 0x01 /* board parameters are write protected */
  97 #define FW_FLAG_BOOT_SECTOR_WE  0x02 /* enable of write boot sectors (below 64K) */
  98
  99 struct mylo_fw_blockdesc {
 100         uint32_t        type;   /* block type */
 101         uint32_t        addr;   /* relative address to flash start */
 102         uint32_t        dlen;   /* size of block data in bytes */
 103         uint32_t        blen;   /* total size of block in bytes */
 104 };
 105
 106 #define FW_DESC_TYPE_UNUSED     0
 107 #define FW_DESC_TYPE_USED       1
 108
 109 struct mylo_partition {
 110         uint16_t        flags;  /* partition flags */
 111         uint16_t        type;   /* type of the partition */
 112         uint32_t        addr;   /* relative address of the partition from the
 113                                    flash start */
 114         uint32_t        size;   /* size of the partition in bytes */
 115         uint32_t        param;  /* if this is the active partition, the
 116                                    MyLoader load code to this address */
 117 };
 118
 119 #define PARTITION_FLAG_ACTIVE   0x8000 /* this is the active partition,
 120                                         * MyLoader loads firmware from here */
 121 #define PARTITION_FLAG_ISRAM    0x2000 /* FIXME: this is a RAM partition? */
 122 #define PARTIIION_FLAG_RAMLOAD  0x1000 /* FIXME: load this partition into the RAM? */
 123 #define PARTITION_FLAG_PRELOAD  0x0800 /* the partition data preloaded to RAM
 124                                         * before decompression */
 125 #define PARTITION_FLAG_HAVEHDR  0x0002 /* the partition data have a header */
 126
 127 #define PARTITION_TYPE_FREE     0
 128 #define PARTITION_TYPE_USED     1
 129
 130 #define MYLO_MAX_PARTITIONS     8       /* maximum number of partitions in the
 131                                            partition table */
 132
 133 struct mylo_partition_table {
 134         uint32_t        magic;  /* must be MYLO_MAGIC_PARTITIONS */
 135         uint32_t        res0;   /* unknown/unused */
 136         uint32_t        res1;   /* unknown/unused */
 137         uint32_t        res2;   /* unknown/unused */
 138         struct mylo_partition partitions[MYLO_MAX_PARTITIONS];
 139 };
 140
 141 struct mylo_partition_header {
 142         uint32_t        len;    /* length of the partition data */
 143         uint32_t        crc;    /* CRC value of the partition data */
 144 };
 145
 146 struct mylo_system_params {
 147         uint32_t        magic;  /* must be MYLO_MAGIC_SYS_PARAMS */
 148         uint32_t        res0;
 149         uint32_t        res1;
 150         uint32_t        mylo_ver;
 151         uint16_t        vid;    /* Vendor ID */
 152         uint16_t        did;    /* Device ID */
 153         uint16_t        svid;   /* Sub Vendor ID */
 154         uint16_t        sdid;   /* Sub Device ID */
 155         uint32_t        rev;    /* device revision */
 156         uint32_t        fwhi;
 157         uint32_t        fwlo;
 158         uint32_t        tftp_addr;
 159         uint32_t        prog_start;
 160         uint32_t        flash_size;     /* Size of boot FLASH in bytes */
 161         uint32_t        dram_size;      /* Size of onboard RAM in bytes */
 162 };
 163
 164
 165 struct mylo_eth_addr {
 166         uint8_t mac[6];
 167         uint8_t csum[2];
 168 };
 169
 170 #define MYLO_ETHADDR_COUNT      8       /* maximum number of ethernet address
 171                                            in the board parameters */
 172
 173 struct mylo_board_params {
 174         uint32_t        magic;  /* must be MYLO_MAGIC_BOARD_PARAMS */
 175         uint32_t        res0;
 176         uint32_t        res1;
 177         uint32_t        res2;
 178         struct mylo_eth_addr addr[MYLO_ETHADDR_COUNT];
 179 };
 180
 181 struct myloader_info {
 182         u32     vid;
 183         u32     did;
 184         u32     svid;
 185         u32     sdid;
 186 };
 187
 188 extern struct myloader_info myloader_info;
 189 extern int myloader_present(void) __init;
 190
 191 #endif /* _MYLOADER_H_*/