target/linux/ifxmips/image/u-boot/files/tools/environment_danube.c

   1 /*
   2  * (C) Copyright 2001
   3  * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.com.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24 #ifndef __ASSEMBLY__
  25 #define __ASSEMBLY__                    /* Dirty trick to get only #defines     */
  26 #endif
  27 #define __ASM_STUB_PROCESSOR_H__        /* don't include asm/processor.         */
  28 #include <config.h>
  29 #undef  __ASSEMBLY__
  30 #include <environment.h>
  31
  32 /*
  33  * Handle HOSTS that have prepended
  34  * crap on symbol names, not TARGETS.
  35  */
  36 #if defined(__APPLE__)
  37 /* Leading underscore on symbols */
  38 #  define SYM_CHAR "_"
  39 #else /* No leading character on symbols */
  40 #  define SYM_CHAR
  41 #endif
  42
  43 /*
  44  * Generate embedded environment table
  45  * inside U-Boot image, if needed.
  46  */
  47 #if defined(ENV_IS_EMBEDDED)
  48 /*
  49  * Only put the environment in it's own section when we are building
  50  * U-Boot proper.  The host based program "tools/envcrc" does not need
  51  * a seperate section.  Note that ENV_CRC is only defined when building
  52  * U-Boot itself.
  53  */
  54 #if (defined(CONFIG_CMI)        || \
  55      defined(CONFIG_FADS)       || \
  56      defined(CONFIG_HYMOD)      || \
  57      defined(CONFIG_ICU862)     || \
  58      defined(CONFIG_R360MPI)    || \
  59      defined(CONFIG_TQM8xxL)    || \
  60      defined(CONFIG_RRVISION)   || \
  61      defined(CONFIG_TRAB)       || \
  62      defined(CONFIG_PPCHAMELEONEVB) || \
  63      defined(CONFIG_M5271EVB)   || \
  64      defined(CONFIG_NAND_U_BOOT))       && \
  65      defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */
  66 /* XXX - This only works with GNU C */
  67 #  define __PPCENV__ __attribute__ ((section(".ppcenv")))
  68 #  define __PPCTEXT__ __attribute__ ((section(".text")))
  69
  70 #elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
  71 #  define __PPCENV__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
  72 #  define __PPCTEXT__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
  73
  74 #else /* Environment is embedded in U-Boot's .text section */
  75 /* XXX - This only works with GNU C */
  76 #  define __PPCENV__ __attribute__ ((section(".text")))
  77 #  define __PPCTEXT__ __attribute__ ((section(".text")))
  78 #endif
  79
  80 /*
  81  * Macros to generate global absolutes.
  82  */
  83 #define GEN_SYMNAME(str) SYM_CHAR #str
  84 #define GEN_VALUE(str) #str
  85 #define GEN_ABS(name, value) \
  86                 asm (".globl " GEN_SYMNAME(name)); \
  87                 asm (GEN_SYMNAME(name) " = " GEN_VALUE(value))
  88
  89 /*
  90  * Macros to transform values
  91  * into environment strings.
  92  */
  93 #define XMK_STR(x)      #x
  94 #define MK_STR(x)       XMK_STR(x)
  95
  96 /*
  97  * Check to see if we are building with a
  98  * computed CRC.  Otherwise define it as ~0.
  99  */
 100 #if !defined(ENV_CRC)
 101 #  define ENV_CRC       ~0
 102 #endif
 103
 104 env_t environment __PPCENV__ = {
 105         ENV_CRC,        /* CRC Sum */
 106 #ifdef CFG_REDUNDAND_ENVIRONMENT
 107         1,              /* Flags: valid */
 108 #endif
 109         {
 110 #if defined(CONFIG_BOOTARGS)
 111         "bootargs="     CONFIG_BOOTARGS                 "\0"
 112 #endif
 113 #if defined(CONFIG_BOOTCOMMAND)
 114         "bootcmd="      CONFIG_BOOTCOMMAND              "\0"
 115 #endif
 116 #if defined(CONFIG_RAMBOOTCOMMAND)
 117         "ramboot="      CONFIG_RAMBOOTCOMMAND           "\0"
 118 #endif
 119 #if defined(CONFIG_NFSBOOTCOMMAND)
 120         "nfsboot="      CONFIG_NFSBOOTCOMMAND           "\0"
 121 #endif
 122 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
 123         "bootdelay="    MK_STR(CONFIG_BOOTDELAY)        "\0"
 124 #endif
 125 #if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
 126         "baudrate="     MK_STR(CONFIG_BAUDRATE)         "\0"
 127 #endif
 128 #ifdef  CONFIG_LOADS_ECHO
 129         "loads_echo="   MK_STR(CONFIG_LOADS_ECHO)       "\0"
 130 #endif
 131 #ifdef  CONFIG_ETHADDR
 132         "ethaddr="      MK_STR(CONFIG_ETHADDR)          "\0"
 133 #endif
 134 #ifdef  CONFIG_ETH1ADDR
 135         "eth1addr="     MK_STR(CONFIG_ETH1ADDR)         "\0"
 136 #endif
 137 #ifdef  CONFIG_ETH2ADDR
 138         "eth2addr="     MK_STR(CONFIG_ETH2ADDR)         "\0"
 139 #endif
 140 #ifdef  CONFIG_ETH3ADDR
 141         "eth3addr="     MK_STR(CONFIG_ETH3ADDR)         "\0"
 142 #endif
 143 #ifdef  CONFIG_ETHPRIME
 144         "ethprime="     CONFIG_ETHPRIME                 "\0"
 145 #endif
 146 #ifdef  CONFIG_IPADDR
 147         "ipaddr="       MK_STR(CONFIG_IPADDR)           "\0"
 148 #endif
 149 #ifdef  CONFIG_SERVERIP
 150         "serverip="     MK_STR(CONFIG_SERVERIP)         "\0"
 151 #endif
 152 #ifdef  CFG_AUTOLOAD
 153         "autoload="     CFG_AUTOLOAD                    "\0"
 154 #endif
 155 #ifdef  CONFIG_ROOTPATH
 156         "rootpath="     MK_STR(CONFIG_ROOTPATH)         "\0"
 157 #endif
 158 #ifdef  CONFIG_GATEWAYIP
 159         "gatewayip="    MK_STR(CONFIG_GATEWAYIP)        "\0"
 160 #endif
 161 #ifdef  CONFIG_NETMASK
 162         "netmask="      MK_STR(CONFIG_NETMASK)          "\0"
 163 #endif
 164 #ifdef  CONFIG_HOSTNAME
 165         "hostname="     MK_STR(CONFIG_HOSTNAME)         "\0"
 166 #endif
 167 #ifdef  CONFIG_BOOTFILE
 168         "bootfile="     MK_STR(CONFIG_BOOTFILE)         "\0"
 169 #endif
 170 #ifdef  CONFIG_LOADADDR
 171         "loadaddr="     MK_STR(CONFIG_LOADADDR)         "\0"
 172 #endif
 173 #ifdef  CONFIG_PREBOOT
 174         "preboot="      CONFIG_PREBOOT                  "\0"
 175 #endif
 176 #ifdef  CONFIG_CLOCKS_IN_MHZ
 177         "clocks_in_mhz=" "1"                            "\0"
 178 #endif
 179 #if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
 180         "pcidelay="     MK_STR(CONFIG_PCI_BOOTDELAY)    "\0"
 181 #endif
 182 #ifdef  CONFIG_EXTRA_ENV_SETTINGS
 183         CONFIG_EXTRA_ENV_SETTINGS
 184 #endif
 185         "\0"            /* Term. env_t.data with 2 NULs */
 186         }
 187 };
 188 #ifdef CFG_ENV_ADDR_REDUND
 189 env_t redundand_environment __PPCENV__ = {
 190         0,              /* CRC Sum: invalid */
 191         0,              /* Flags:   invalid */
 192         {
 193         "\0"
 194         }
 195 };
 196 #endif  /* CFG_ENV_ADDR_REDUND */
 197
 198 /*
 199  * These will end up in the .text section
 200  * if the environment strings are embedded
 201  * in the image.  When this is used for
 202  * tools/envcrc, they are placed in the
 203  * .data/.sdata section.
 204  *
 205  */
 206 unsigned long env_size __PPCTEXT__ = sizeof(env_t);
 207
 208 /*
 209  * Add in absolutes.
 210  */
 211 GEN_ABS(env_offset, CFG_ENV_OFFSET);
 212
 213 #endif /* ENV_IS_EMBEDDED */