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 * Generate embedded environment table
45 * inside U-Boot image, if needed.
47 #if defined(ENV_IS_EMBEDDED)
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
54 #if (defined(CFG_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")))
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*/
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")))
71 * Macros to generate global absolutes.
74 # define GEN_SET_VALUE(name, value) asm (".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
76 # define GEN_SET_VALUE(name, value) asm (GEN_SYMNAME(name) " = " GEN_VALUE(value))
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)
85 * Macros to transform values
86 * into environment strings.
89 #define MK_STR(x) XMK_STR(x)
92 * Check to see if we are building with a
93 * computed CRC. Otherwise define it as ~0.
99 env_t environment __PPCENV__ = {
100 ENV_CRC, /* CRC Sum */
101 #ifdef CFG_REDUNDAND_ENVIRONMENT
102 1, /* Flags: valid */
105 #if defined(CONFIG_BOOTARGS)
106 "bootargs=" CONFIG_BOOTARGS "\0"
108 #if defined(CONFIG_BOOTCOMMAND)
109 "bootcmd=" CONFIG_BOOTCOMMAND "\0"
111 #if defined(CONFIG_RAMBOOTCOMMAND)
112 "ramboot=" CONFIG_RAMBOOTCOMMAND "\0"
114 #if defined(CONFIG_NFSBOOTCOMMAND)
115 "nfsboot=" CONFIG_NFSBOOTCOMMAND "\0"
117 #if defined(CONFIG_BOOTDELAY) && (CONFIG_BOOTDELAY >= 0)
118 "bootdelay=" MK_STR(CONFIG_BOOTDELAY) "\0"
120 #if defined(CONFIG_BAUDRATE) && (CONFIG_BAUDRATE >= 0)
121 "baudrate=" MK_STR(CONFIG_BAUDRATE) "\0"
123 #ifdef CONFIG_LOADS_ECHO
124 "loads_echo=" MK_STR(CONFIG_LOADS_ECHO) "\0"
126 #ifdef CONFIG_ETHADDR
127 "ethaddr=" MK_STR(CONFIG_ETHADDR) "\0"
129 #ifdef CONFIG_ETH1ADDR
130 "eth1addr=" MK_STR(CONFIG_ETH1ADDR) "\0"
132 #ifdef CONFIG_ETH2ADDR
133 "eth2addr=" MK_STR(CONFIG_ETH2ADDR) "\0"
135 #ifdef CONFIG_ETH3ADDR
136 "eth3addr=" MK_STR(CONFIG_ETH3ADDR) "\0"
138 #ifdef CONFIG_ETHPRIME
139 "ethprime=" CONFIG_ETHPRIME "\0"
142 "ipaddr=" MK_STR(CONFIG_IPADDR) "\0"
144 #ifdef CONFIG_SERVERIP
145 "serverip=" MK_STR(CONFIG_SERVERIP) "\0"
148 "autoload=" CFG_AUTOLOAD "\0"
150 #ifdef CONFIG_ROOTPATH
151 "rootpath=" MK_STR(CONFIG_ROOTPATH) "\0"
153 #ifdef CONFIG_GATEWAYIP
154 "gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0"
156 #ifdef CONFIG_NETMASK
157 "netmask=" MK_STR(CONFIG_NETMASK) "\0"
159 #ifdef CONFIG_HOSTNAME
160 "hostname=" MK_STR(CONFIG_HOSTNAME) "\0"
162 #ifdef CONFIG_BOOTFILE
163 "bootfile=" MK_STR(CONFIG_BOOTFILE) "\0"
165 #ifdef CONFIG_LOADADDR
166 "loadaddr=" MK_STR(CONFIG_LOADADDR) "\0"
168 #ifdef CONFIG_PREBOOT
169 "preboot=" CONFIG_PREBOOT "\0"
171 #ifdef CONFIG_CLOCKS_IN_MHZ
172 "clocks_in_mhz=" "1" "\0"
174 #if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0)
175 "pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0"
177 #ifdef CONFIG_EXTRA_ENV_SETTINGS
178 CONFIG_EXTRA_ENV_SETTINGS
180 "\0" /* Term. env_t.data with 2 NULs */
183 #ifdef CFG_ENV_ADDR_REDUND
184 env_t redundand_environment __PPCENV__ = {
185 0, /* CRC Sum: invalid */
186 0, /* Flags: invalid */
191 #endif /* CFG_ENV_ADDR_REDUND */
194 * These will end up in the .text section
195 * if the environment strings are embedded
196 * in the image. When this is used for
197 * tools/envcrc, they are placed in the
198 * .data/.sdata section.
201 unsigned long env_size __PPCTEXT__ = sizeof(env_t);
206 GEN_ABS(env_offset, CFG_ENV_OFFSET);
208 #endif /* ENV_IS_EMBEDDED */