3 * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
5 * See file CREDITS for list of people who contributed to this
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.
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.
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,
25 #define __ASSEMBLY__ /* Dirty trick to get only #defines */
27 #define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */
30 #include <environment.h>
33 * Handle HOSTS that have prepended
34 * crap on symbol names, not TARGETS.
36 #if defined(__APPLE__)
37 /* Leading underscore on symbols */
39 #else /* No leading character on symbols */
44 * Only put the environment in it's own section when we are building
45 * U-Boot proper. The host based program "tools/envcrc" does not need
46 * a seperate section. Note that ENV_CRC is only defined when building
49 #if (defined(CONFIG_SYS_USE_PPCENV) || defined(CONFIG_NAND_U_BOOT)) && \
50 defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */
51 /* XXX - This only works with GNU C */
52 # define __PPCENV__ __attribute__ ((section(".ppcenv")))
53 # define __PPCTEXT__ __attribute__ ((section(".text")))
55 #elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
56 # define __PPCENV__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
57 # define __PPCTEXT__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
59 #else /* Environment is embedded in U-Boot's .text section */
60 /* XXX - This only works with GNU C */
61 # define __PPCENV__ __attribute__ ((section(".text")))
62 # define __PPCTEXT__ __attribute__ ((section(".text")))
66 * Macros to generate global absolutes.
69 # define GEN_SET_VALUE(name, value) asm (".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
71 # define GEN_SET_VALUE(name, value) asm (GEN_SYMNAME(name) " = " GEN_VALUE(value))
73 #define GEN_SYMNAME(str) SYM_CHAR #str
74 #define GEN_VALUE(str) #str
75 #define GEN_ABS(name, value) \
76 asm (".globl " GEN_SYMNAME(name)); \
77 GEN_SET_VALUE(name, value)
80 * Macros to transform values
81 * into environment strings.
84 #define MK_STR(x) XMK_STR(x)
87 * Check to see if we are building with a
88 * computed CRC. Otherwise define it as ~0.
94 env_t environment __PPCENV__ = {
95 ENV_CRC, /* CRC Sum */
96 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
100 #if defined(CONFIG_BOOTARGS)
101 "bootargs=" CONFIG_BOOTARGS "\0"
103 #if defined(CONFIG_BOOTCOMMAND)
104 "bootcmd=" CONFIG_BOOTCOMMAND "\0"
106 #if defined(CONFIG_RAMBOOTCOMMAND)
107 "ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
109 #if defined(CONFIG_NFSBOOTCOMMAND)
110 "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
112 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
113 "bootdelay=" MK_STR(CONFIG_BOOTDELAY) "\0"
115 #if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
116 "baudrate=" MK_STR(CONFIG_BAUDRATE) "\0"
118 #ifdef CONFIG_LOADS_ECHO
119 "loads_echo=" MK_STR(CONFIG_LOADS_ECHO) "\0"
121 #ifdef CONFIG_ETHADDR
122 "ethaddr=" MK_STR(CONFIG_ETHADDR) "\0"
124 #ifdef CONFIG_ETH1ADDR
125 "eth1addr=" MK_STR(CONFIG_ETH1ADDR) "\0"
127 #ifdef CONFIG_ETH2ADDR
128 "eth2addr=" MK_STR(CONFIG_ETH2ADDR) "\0"
130 #ifdef CONFIG_ETH3ADDR
131 "eth3addr=" MK_STR(CONFIG_ETH3ADDR) "\0"
133 #ifdef CONFIG_ETH4ADDR
134 "eth4addr=" MK_STR(CONFIG_ETH4ADDR) "\0"
136 #ifdef CONFIG_ETH5ADDR
137 "eth5addr=" MK_STR(CONFIG_ETH5ADDR) "\0"
139 #ifdef CONFIG_ETHPRIME
140 "ethprime=" CONFIG_ETHPRIME "\0"
143 "ipaddr=" MK_STR(CONFIG_IPADDR) "\0"
145 #ifdef CONFIG_SERVERIP
146 "serverip=" MK_STR(CONFIG_SERVERIP) "\0"
148 #ifdef CONFIG_SYS_AUTOLOAD
149 "autoload=" CONFIG_SYS_AUTOLOAD "\0"
151 #ifdef CONFIG_ROOTPATH
152 "rootpath=" MK_STR(CONFIG_ROOTPATH) "\0"
154 #ifdef CONFIG_GATEWAYIP
155 "gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0"
157 #ifdef CONFIG_NETMASK
158 "netmask=" MK_STR(CONFIG_NETMASK) "\0"
160 #ifdef CONFIG_HOSTNAME
161 "hostname=" MK_STR(CONFIG_HOSTNAME) "\0"
163 #ifdef CONFIG_BOOTFILE
164 "bootfile=" MK_STR(CONFIG_BOOTFILE) "\0"
166 #ifdef CONFIG_LOADADDR
167 "loadaddr=" MK_STR(CONFIG_LOADADDR) "\0"
169 #ifdef CONFIG_PREBOOT
170 "preboot=" CONFIG_PREBOOT "\0"
172 #ifdef CONFIG_CLOCKS_IN_MHZ
173 "clocks_in_mhz=" "1" "\0"
175 #if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
176 "pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0"
178 #ifdef CONFIG_EXTRA_ENV_SETTINGS
179 CONFIG_EXTRA_ENV_SETTINGS
181 "\0" /* Term. env_t.data with 2 NULs */
184 #ifdef CONFIG_ENV_ADDR_REDUND
185 env_t redundand_environment __PPCENV__ = {
186 0, /* CRC Sum: invalid */
187 0, /* Flags: invalid */
192 #endif /* CONFIG_ENV_ADDR_REDUND */
195 * These will end up in the .text section
196 * if the environment strings are embedded
197 * in the image. When this is used for
198 * tools/envcrc, they are placed in the
199 * .data/.sdata section.
202 unsigned long env_size __PPCTEXT__ = sizeof(env_t);
207 GEN_ABS(env_offset, CONFIG_ENV_OFFSET);