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 modify it
  10  *  under the terms of the GNU General Public License version 2 as published
  11  *  by the Free Software Foundation.
  12  *
  13  */
  14
  15 #ifndef _MYLOADER_H_
  16 #define _MYLOADER_H_
  17
  18 /*
  19  * Firmware file format:
  20  *
  21  *      <header>
  22  *      [<block descriptor 0>]
  23  *      ...
  24  *      [<block descriptor n>]
  25  *      <null block descriptor>
  26  *      [<block data 0>]
  27  *      ...
  28  *      [<block data n>]
  29  *
  30  *
  31  */
  32
  33 /* Myloader specific magic numbers */
  34 #define MYLO_MAGIC_FIRMWARE     0x4C594D00
  35 #define MYLO_MAGIC_20021103     0x20021103
  36 #define MYLO_MAGIC_20021107     0x20021107
  37
  38 #define MYLO_MAGIC_SYS_PARAMS   MYLO_MAGIC_20021107
  39 #define MYLO_MAGIC_PARTITIONS   MYLO_MAGIC_20021103
  40 #define MYLO_MAGIC_BOARD_PARAMS MYLO_MAGIC_20021103
  41
  42 /*
  43  * Addresses of the data structures provided by MyLoader
  44  */
  45 #define MYLO_MIPS_SYS_PARAMS    0x80000800      /* System Parameters */
  46 #define MYLO_MIPS_BOARD_PARAMS  0x80000A00      /* Board Parameters */
  47 #define MYLO_MIPS_PARTITIONS    0x80000C00      /* Partition Table */
  48 #define MYLO_MIPS_BOOT_PARAMS   0x80000E00      /* Boot Parameters */
  49
  50 /* Vendor ID's (seems to be same as the PCI vendor ID's) */
  51 #define VENID_COMPEX            0x11F6
  52
  53 /* Devices based on the ADM5120 */
  54 #define DEVID_COMPEX_NP27G      0x0078
  55 #define DEVID_COMPEX_NP28G      0x044C
  56 #define DEVID_COMPEX_NP28GHS    0x044E
  57 #define DEVID_COMPEX_WP54Gv1C   0x0514
  58 #define DEVID_COMPEX_WP54G      0x0515
  59 #define DEVID_COMPEX_WP54AG     0x0546
  60 #define DEVID_COMPEX_WPP54AG    0x0550
  61 #define DEVID_COMPEX_WPP54G     0x0555
  62
  63 /* Devices based on the IXP422 */
  64 #define DEVID_COMPEX_WP18       0x047E
  65 #define DEVID_COMPEX_NP18A      0x0489
  66
  67 /* Other devices */
  68 #define DEVID_COMPEX_NP26G8M    0x03E8
  69 #define DEVID_COMPEX_NP26G16M   0x03E9
  70
  71 struct mylo_fw_header {
  72         uint32_t        magic;  /* must be MYLO_MAGIC_FIRMWARE */
  73         uint32_t        crc;    /* CRC of the whole firmware */
  74         uint32_t        res0;   /* unknown/unused */
  75         uint32_t        res1;   /* unknown/unused */
  76         uint16_t        vid;    /* vendor ID */
  77         uint16_t        did;    /* device ID */
  78         uint16_t        svid;   /* sub vendor ID */
  79         uint16_t        sdid;   /* sub device ID */
  80         uint32_t        rev;    /* device revision */
  81         uint32_t        fwhi;   /* FIXME: firmware version high? */
  82         uint32_t        fwlo;   /* FIXME: firmware version low? */
  83         uint32_t        flags;  /* firmware flags */
  84 };
  85
  86 #define FW_FLAG_BOARD_PARAMS_WP 0x01 /* board parameters are write protected */
  87 #define FW_FLAG_BOOT_SECTOR_WE  0x02 /* enable of write boot sectors (below 64K) */
  88
  89 struct mylo_fw_blockdesc {
  90         uint32_t        type;   /* block type */
  91         uint32_t        addr;   /* relative address to flash start */
  92         uint32_t        dlen;   /* size of block data in bytes */
  93         uint32_t        blen;   /* total size of block in bytes */
  94 };
  95
  96 #define FW_DESC_TYPE_UNUSED     0
  97 #define FW_DESC_TYPE_USED       1
  98
  99 struct mylo_partition {
 100         uint16_t        flags;  /* partition flags */
 101         uint16_t        type;   /* type of the partition */
 102         uint32_t        addr;   /* relative address of the partition from the
 103                                    flash start */
 104         uint32_t        size;   /* size of the partition in bytes */
 105         uint32_t        param;  /* if this is the active partition, the
 106                                    MyLoader load code to this address */
 107 };
 108
 109 #define PARTITION_FLAG_ACTIVE   0x8000 /* this is the active partition,
 110                                         * MyLoader loads firmware from here */
 111 #define PARTITION_FLAG_ISRAM    0x2000 /* FIXME: this is a RAM partition? */
 112 #define PARTIIION_FLAG_RAMLOAD  0x1000 /* FIXME: load this partition into the RAM? */
 113 #define PARTITION_FLAG_PRELOAD  0x0800 /* the partition data preloaded to RAM
 114                                         * before decompression */
 115 #define PARTITION_FLAG_HAVEHDR  0x0002 /* the partition data have a header */
 116
 117 #define PARTITION_TYPE_FREE     0
 118 #define PARTITION_TYPE_USED     1
 119
 120 #define MYLO_MAX_PARTITIONS     8       /* maximum number of partitions in the
 121                                            partition table */
 122
 123 struct mylo_partition_table {
 124         uint32_t        magic;  /* must be MYLO_MAGIC_PARTITIONS */
 125         uint32_t        res0;   /* unknown/unused */
 126         uint32_t        res1;   /* unknown/unused */
 127         uint32_t        res2;   /* unknown/unused */
 128         struct mylo_partition partitions[MYLO_MAX_PARTITIONS];
 129 };
 130
 131 struct mylo_partition_header {
 132         uint32_t        len;    /* length of the partition data */
 133         uint32_t        crc;    /* CRC value of the partition data */
 134 };
 135
 136 struct mylo_system_params {
 137         uint32_t        magic;  /* must be MYLO_MAGIC_SYS_PARAMS */
 138         uint32_t        res0;
 139         uint32_t        res1;
 140         uint32_t        mylo_ver;
 141         uint16_t        vid;    /* Vendor ID */
 142         uint16_t        did;    /* Device ID */
 143         uint16_t        svid;   /* Sub Vendor ID */
 144         uint16_t        sdid;   /* Sub Device ID */
 145         uint32_t        rev;    /* device revision */
 146         uint32_t        fwhi;
 147         uint32_t        fwlo;
 148         uint32_t        tftp_addr;
 149         uint32_t        prog_start;
 150         uint32_t        flash_size;     /* Size of boot FLASH in bytes */
 151         uint32_t        dram_size;      /* Size of onboard RAM in bytes */
 152 };
 153
 154
 155 struct mylo_eth_addr {
 156         uint8_t mac[6];
 157         uint8_t csum[2];
 158 };
 159
 160 #define MYLO_ETHADDR_COUNT      8       /* maximum number of ethernet address
 161                                            in the board parameters */
 162
 163 struct mylo_board_params {
 164         uint32_t        magic;  /* must be MYLO_MAGIC_BOARD_PARAMS */
 165         uint32_t        res0;
 166         uint32_t        res1;
 167         uint32_t        res2;
 168         struct mylo_eth_addr addr[MYLO_ETHADDR_COUNT];
 169 };
 170
 171 struct myloader_info {
 172         u32     vid;
 173         u32     did;
 174         u32     svid;
 175         u32     sdid;
 176 };
 177
 178 extern struct myloader_info myloader_info;
 179 extern int myloader_present(void) __init;
 180
 181 #endif /* _MYLOADER_H_*/