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>
31 #include <linux/stringify.h>
33 /* Handle HOSTS that have prepended crap on symbol names, not TARGETS. */
34 #if defined(__APPLE__)
35 /* Leading underscore on symbols */
37 #else /* No leading character on symbols */
42 * Generate embedded environment table
43 * inside U-Boot image, if needed.
45 #if defined(ENV_IS_EMBEDDED) || defined(CONFIG_BUILD_ENVCRC)
47 * Only put the environment in it's own section when we are building
48 * U-Boot proper. The host based program "tools/envcrc" does not need
49 * a seperate section. Note that ENV_CRC is only defined when building
52 #if (defined(CONFIG_SYS_USE_PPCENV) || defined(CONFIG_NAND_U_BOOT)) && \
53 defined(ENV_CRC) /* Environment embedded in U-Boot .ppcenv section */
54 /* XXX - This only works with GNU C */
55 # define __PPCENV__ __attribute__ ((section(".ppcenv")))
56 # define __PPCTEXT__ __attribute__ ((section(".text")))
58 #elif defined(USE_HOSTCC) /* Native for 'tools/envcrc' */
59 # define __PPCENV__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
60 # define __PPCTEXT__ /*XXX DO_NOT_DEL_THIS_COMMENT*/
62 #else /* Environment is embedded in U-Boot's .text section */
63 /* XXX - This only works with GNU C */
64 # define __PPCENV__ __attribute__ ((section(".text")))
65 # define __PPCTEXT__ __attribute__ ((section(".text")))
69 * Macros to generate global absolutes.
72 # define GEN_SET_VALUE(name, value) \
73 asm(".set " GEN_SYMNAME(name) ", " GEN_VALUE(value))
75 # define GEN_SET_VALUE(name, value) \
76 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 * Check to see if we are building with a
86 * computed CRC. Otherwise define it as ~0.
92 #define DEFAULT_ENV_INSTANCE_EMBEDDED
93 #include <env_default.h>
95 #ifdef CONFIG_ENV_ADDR_REDUND
96 env_t redundand_environment __PPCENV__ = {
97 0, /* CRC Sum: invalid */
98 0, /* Flags: invalid */
103 #endif /* CONFIG_ENV_ADDR_REDUND */
106 * These will end up in the .text section
107 * if the environment strings are embedded
108 * in the image. When this is used for
109 * tools/envcrc, they are placed in the
110 * .data/.sdata section.
113 unsigned long env_size __PPCTEXT__ = sizeof(env_t);
118 GEN_ABS(env_offset, CONFIG_ENV_OFFSET);
120 #endif /* ENV_IS_EMBEDDED */