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Commit | Line | Data |
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c609719b WD |
1 | /* |
2 | * (C) Copyright 2001 | |
3 | * Erik Theisen, Wave 7 Optics, etheisen@mindspring.com. | |
4 | * | |
3765b3e7 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
c609719b WD |
6 | */ |
7 | ||
f33f3e07 YS |
8 | #include <linux/kconfig.h> |
9 | ||
dc17fb6d | 10 | #ifndef __ASSEMBLY__ |
bd2a23ac | 11 | #define __ASSEMBLY__ /* Dirty trick to get only #defines */ |
dc17fb6d | 12 | #endif |
bd2a23ac | 13 | #define __ASM_STUB_PROCESSOR_H__ /* don't include asm/processor. */ |
c609719b | 14 | #include <config.h> |
dc17fb6d | 15 | #undef __ASSEMBLY__ |
c609719b | 16 | #include <environment.h> |
5368c55d | 17 | #include <linux/stringify.h> |
c609719b | 18 | |
bd2a23ac | 19 | /* Handle HOSTS that have prepended crap on symbol names, not TARGETS. */ |
c609719b WD |
20 | #if defined(__APPLE__) |
21 | /* Leading underscore on symbols */ | |
22 | # define SYM_CHAR "_" | |
23 | #else /* No leading character on symbols */ | |
24 | # define SYM_CHAR | |
25 | #endif | |
26 | ||
a747a7f3 WD |
27 | /* |
28 | * Generate embedded environment table | |
29 | * inside U-Boot image, if needed. | |
30 | */ | |
c3eb3fe4 | 31 | #if defined(ENV_IS_EMBEDDED) || defined(CONFIG_BUILD_ENVCRC) |
c609719b | 32 | /* |
7653942b | 33 | * Put the environment in the .text section when we are building |
c609719b | 34 | * U-Boot proper. The host based program "tools/envcrc" does not need |
7653942b | 35 | * a seperate section. |
c609719b | 36 | */ |
7653942b | 37 | #if defined(USE_HOSTCC) /* Native for 'tools/envcrc' */ |
eaa90e5d | 38 | # define __UBOOT_ENV_SECTION__ /*XXX DO_NOT_DEL_THIS_COMMENT*/ |
c609719b WD |
39 | |
40 | #else /* Environment is embedded in U-Boot's .text section */ | |
41 | /* XXX - This only works with GNU C */ | |
eaa90e5d | 42 | # define __UBOOT_ENV_SECTION__ __attribute__ ((section(".text"))) |
c609719b WD |
43 | #endif |
44 | ||
45 | /* | |
46 | * Macros to generate global absolutes. | |
47 | */ | |
4087bc88 | 48 | #if defined(__bfin__) |
bd2a23ac IG |
49 | # define GEN_SET_VALUE(name, value) \ |
50 | asm(".set " GEN_SYMNAME(name) ", " GEN_VALUE(value)) | |
4087bc88 | 51 | #else |
bd2a23ac IG |
52 | # define GEN_SET_VALUE(name, value) \ |
53 | asm(GEN_SYMNAME(name) " = " GEN_VALUE(value)) | |
54 | #endif | |
55 | #define GEN_SYMNAME(str) SYM_CHAR #str | |
56 | #define GEN_VALUE(str) #str | |
57 | #define GEN_ABS(name, value) \ | |
58 | asm(".globl " GEN_SYMNAME(name)); \ | |
59 | GEN_SET_VALUE(name, value) | |
c609719b | 60 | |
c609719b WD |
61 | /* |
62 | * Check to see if we are building with a | |
63 | * computed CRC. Otherwise define it as ~0. | |
64 | */ | |
65 | #if !defined(ENV_CRC) | |
bd2a23ac | 66 | # define ENV_CRC (~0) |
c609719b WD |
67 | #endif |
68 | ||
ddd8418f JH |
69 | #define DEFAULT_ENV_INSTANCE_EMBEDDED |
70 | #include <env_default.h> | |
71 | ||
0e8d1586 | 72 | #ifdef CONFIG_ENV_ADDR_REDUND |
eaa90e5d | 73 | env_t redundand_environment __UBOOT_ENV_SECTION__ = { |
c609719b WD |
74 | 0, /* CRC Sum: invalid */ |
75 | 0, /* Flags: invalid */ | |
76 | { | |
77 | "\0" | |
78 | } | |
79 | }; | |
0e8d1586 | 80 | #endif /* CONFIG_ENV_ADDR_REDUND */ |
c609719b WD |
81 | |
82 | /* | |
83 | * These will end up in the .text section | |
84 | * if the environment strings are embedded | |
85 | * in the image. When this is used for | |
86 | * tools/envcrc, they are placed in the | |
87 | * .data/.sdata section. | |
88 | * | |
89 | */ | |
eaa90e5d | 90 | unsigned long env_size __UBOOT_ENV_SECTION__ = sizeof(env_t); |
c609719b WD |
91 | |
92 | /* | |
93 | * Add in absolutes. | |
94 | */ | |
0e8d1586 | 95 | GEN_ABS(env_offset, CONFIG_ENV_OFFSET); |
a747a7f3 WD |
96 | |
97 | #endif /* ENV_IS_EMBEDDED */ |