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_SYS_USE_PPCENV) || defined(CONFIG_NAND_U_BOOT)) && \ 55 defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */ 56 /* XXX - This only works with GNU C */ 57 # define __PPCENV__ __attribute__ ((section(".ppcenv"))) 58 # define __PPCTEXT__ __attribute__ ((section(".text"))) 59 60 #elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */ 61 # define __PPCENV__ /*XXX DO_NOT_DEL_THIS_COMMENT*/ 62 # define __PPCTEXT__ /*XXX DO_NOT_DEL_THIS_COMMENT*/ 63 64 #else /* Environment is embedded in U-Boot's .text section */ 65 /* XXX - This only works with GNU C */ 66 # define __PPCENV__ __attribute__ ((section(".text"))) 67 # define __PPCTEXT__ __attribute__ ((section(".text"))) 68 #endif 69 70 /* 71 * Macros to generate global absolutes. 72 */ 73 #if defined(__bfin__) 74 # define GEN_SET_VALUE(name, value) asm (".set " GEN_SYMNAME(name) ", " GEN_VALUE(value)) 75 #else 76 # define GEN_SET_VALUE(name, value) asm (GEN_SYMNAME(name) " = " GEN_VALUE(value)) 77 #endif 78 #define GEN_SYMNAME(str) SYM_CHAR #str 79 #define GEN_VALUE(str) #str 80 #define GEN_ABS(name, value) \ 81 asm (".globl " GEN_SYMNAME(name)); \ 82 GEN_SET_VALUE(name, value) 83 84 /* 85 * Macros to transform values 86 * into environment strings. 87 */ 88 #define XMK_STR(x) #x 89 #define MK_STR(x) XMK_STR(x) 90 91 /* 92 * Check to see if we are building with a 93 * computed CRC. Otherwise define it as ~0. 94 */ 95 #if !defined(ENV_CRC) 96 # define ENV_CRC ~0 97 #endif 98 99 env_t environment __PPCENV__ = { 100 ENV_CRC, /* CRC Sum */ 101 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT 102 1, /* Flags: valid */ 103 #endif 104 { 105 #if defined(CONFIG_BOOTARGS) 106 "bootargs=" CONFIG_BOOTARGS "\0" 107 #endif 108 #if defined(CONFIG_BOOTCOMMAND) 109 "bootcmd=" CONFIG_BOOTCOMMAND "\0" 110 #endif 111 #if defined(CONFIG_RAMBOOTCOMMAND) 112 "ramboot=" CONFIG_RAMBOOTCOMMAND "\0" 113 #endif 114 #if defined(CONFIG_NFSBOOTCOMMAND) 115 "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0" 116 #endif 117 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0) 118 "bootdelay=" MK_STR(CONFIG_BOOTDELAY) "\0" 119 #endif 120 #if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0) 121 "baudrate=" MK_STR(CONFIG_BAUDRATE) "\0" 122 #endif 123 #ifdef CONFIG_LOADS_ECHO 124 "loads_echo=" MK_STR(CONFIG_LOADS_ECHO) "\0" 125 #endif 126 #ifdef CONFIG_ETHADDR 127 "ethaddr=" MK_STR(CONFIG_ETHADDR) "\0" 128 #endif 129 #ifdef CONFIG_ETH1ADDR 130 "eth1addr=" MK_STR(CONFIG_ETH1ADDR) "\0" 131 #endif 132 #ifdef CONFIG_ETH2ADDR 133 "eth2addr=" MK_STR(CONFIG_ETH2ADDR) "\0" 134 #endif 135 #ifdef CONFIG_ETH3ADDR 136 "eth3addr=" MK_STR(CONFIG_ETH3ADDR) "\0" 137 #endif 138 #ifdef CONFIG_ETH4ADDR 139 "eth4addr=" MK_STR(CONFIG_ETH4ADDR) "\0" 140 #endif 141 #ifdef CONFIG_ETH5ADDR 142 "eth5addr=" MK_STR(CONFIG_ETH5ADDR) "\0" 143 #endif 144 #ifdef CONFIG_ETHPRIME 145 "ethprime=" CONFIG_ETHPRIME "\0" 146 #endif 147 #ifdef CONFIG_IPADDR 148 "ipaddr=" MK_STR(CONFIG_IPADDR) "\0" 149 #endif 150 #ifdef CONFIG_SERVERIP 151 "serverip=" MK_STR(CONFIG_SERVERIP) "\0" 152 #endif 153 #ifdef CONFIG_SYS_AUTOLOAD 154 "autoload=" CONFIG_SYS_AUTOLOAD "\0" 155 #endif 156 #ifdef CONFIG_ROOTPATH 157 "rootpath=" MK_STR(CONFIG_ROOTPATH) "\0" 158 #endif 159 #ifdef CONFIG_GATEWAYIP 160 "gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0" 161 #endif 162 #ifdef CONFIG_NETMASK 163 "netmask=" MK_STR(CONFIG_NETMASK) "\0" 164 #endif 165 #ifdef CONFIG_HOSTNAME 166 "hostname=" MK_STR(CONFIG_HOSTNAME) "\0" 167 #endif 168 #ifdef CONFIG_BOOTFILE 169 "bootfile=" MK_STR(CONFIG_BOOTFILE) "\0" 170 #endif 171 #ifdef CONFIG_LOADADDR 172 "loadaddr=" MK_STR(CONFIG_LOADADDR) "\0" 173 #endif 174 #ifdef CONFIG_PREBOOT 175 "preboot=" CONFIG_PREBOOT "\0" 176 #endif 177 #ifdef CONFIG_CLOCKS_IN_MHZ 178 "clocks_in_mhz=" "1" "\0" 179 #endif 180 #if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0) 181 "pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0" 182 #endif 183 #ifdef CONFIG_EXTRA_ENV_SETTINGS 184 CONFIG_EXTRA_ENV_SETTINGS 185 #endif 186 "\0" /* Term. env_t.data with 2 NULs */ 187 } 188 }; 189 #ifdef CONFIG_ENV_ADDR_REDUND 190 env_t redundand_environment __PPCENV__ = { 191 0, /* CRC Sum: invalid */ 192 0, /* Flags: invalid */ 193 { 194 "\0" 195 } 196 }; 197 #endif /* CONFIG_ENV_ADDR_REDUND */ 198 199 /* 200 * These will end up in the .text section 201 * if the environment strings are embedded 202 * in the image. When this is used for 203 * tools/envcrc, they are placed in the 204 * .data/.sdata section. 205 * 206 */ 207 unsigned long env_size __PPCTEXT__ = sizeof(env_t); 208 209 /* 210 * Add in absolutes. 211 */ 212 GEN_ABS(env_offset, CONFIG_ENV_OFFSET); 213 214 #endif /* ENV_IS_EMBEDDED */ 215