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c609719b WD |
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 | ||
dc17fb6d WD |
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. */ | |
c609719b | 28 | #include <config.h> |
dc17fb6d | 29 | #undef __ASSEMBLY__ |
c609719b WD |
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 | */ | |
67c31036 | 54 | #if (defined(CFG_USE_PPCENV) || defined(CONFIG_NAND_U_BOOT)) && \ |
c609719b WD |
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 | */ | |
4087bc88 MF |
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 | |
c609719b WD |
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)); \ | |
4087bc88 | 82 | GEN_SET_VALUE(name, value) |
c609719b WD |
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 CFG_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 | |
e2ffd59b WD |
135 | #ifdef CONFIG_ETH3ADDR |
136 | "eth3addr=" MK_STR(CONFIG_ETH3ADDR) "\0" | |
137 | #endif | |
c609719b WD |
138 | #ifdef CONFIG_ETHPRIME |
139 | "ethprime=" CONFIG_ETHPRIME "\0" | |
140 | #endif | |
141 | #ifdef CONFIG_IPADDR | |
142 | "ipaddr=" MK_STR(CONFIG_IPADDR) "\0" | |
143 | #endif | |
144 | #ifdef CONFIG_SERVERIP | |
145 | "serverip=" MK_STR(CONFIG_SERVERIP) "\0" | |
146 | #endif | |
147 | #ifdef CFG_AUTOLOAD | |
148 | "autoload=" CFG_AUTOLOAD "\0" | |
149 | #endif | |
150 | #ifdef CONFIG_ROOTPATH | |
151 | "rootpath=" MK_STR(CONFIG_ROOTPATH) "\0" | |
152 | #endif | |
153 | #ifdef CONFIG_GATEWAYIP | |
154 | "gatewayip=" MK_STR(CONFIG_GATEWAYIP) "\0" | |
155 | #endif | |
156 | #ifdef CONFIG_NETMASK | |
157 | "netmask=" MK_STR(CONFIG_NETMASK) "\0" | |
158 | #endif | |
159 | #ifdef CONFIG_HOSTNAME | |
160 | "hostname=" MK_STR(CONFIG_HOSTNAME) "\0" | |
161 | #endif | |
162 | #ifdef CONFIG_BOOTFILE | |
163 | "bootfile=" MK_STR(CONFIG_BOOTFILE) "\0" | |
164 | #endif | |
165 | #ifdef CONFIG_LOADADDR | |
166 | "loadaddr=" MK_STR(CONFIG_LOADADDR) "\0" | |
167 | #endif | |
168 | #ifdef CONFIG_PREBOOT | |
169 | "preboot=" CONFIG_PREBOOT "\0" | |
170 | #endif | |
171 | #ifdef CONFIG_CLOCKS_IN_MHZ | |
172 | "clocks_in_mhz=" "1" "\0" | |
173 | #endif | |
ad10dd9a SR |
174 | #if defined(CONFIG_PCI_BOOTDELAY) && (CONFIG_PCI_BOOTDELAY > 0) |
175 | "pcidelay=" MK_STR(CONFIG_PCI_BOOTDELAY) "\0" | |
176 | #endif | |
c609719b WD |
177 | #ifdef CONFIG_EXTRA_ENV_SETTINGS |
178 | CONFIG_EXTRA_ENV_SETTINGS | |
179 | #endif | |
d0fb80c3 | 180 | "\0" /* Term. env_t.data with 2 NULs */ |
c609719b WD |
181 | } |
182 | }; | |
183 | #ifdef CFG_ENV_ADDR_REDUND | |
184 | env_t redundand_environment __PPCENV__ = { | |
185 | 0, /* CRC Sum: invalid */ | |
186 | 0, /* Flags: invalid */ | |
187 | { | |
188 | "\0" | |
189 | } | |
190 | }; | |
191 | #endif /* CFG_ENV_ADDR_REDUND */ | |
192 | ||
193 | /* | |
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. | |
199 | * | |
200 | */ | |
201 | unsigned long env_size __PPCTEXT__ = sizeof(env_t); | |
202 | ||
203 | /* | |
204 | * Add in absolutes. | |
205 | */ | |
206 | GEN_ABS(env_offset, CFG_ENV_OFFSET); | |
207 | ||
208 | #endif /* ENV_IS_EMBEDDED */ |