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0a85a9e7 LG |
1 | /* |
2 | * (C) Copyright 2011-2012 Freescale Semiconductor, Inc. | |
3 | * | |
4 | * See file CREDITS for list of people who contributed to this | |
5 | * project. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License as | |
9 | * published by the Free Software Foundation; either version 2 of | |
10 | * the License, or (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
20 | * MA 02111-1307 USA | |
21 | */ | |
22 | ||
23 | /* #define DEBUG */ | |
24 | ||
25 | #include <common.h> | |
26 | #include <command.h> | |
27 | #include <environment.h> | |
28 | #include <linux/stddef.h> | |
29 | ||
30 | char *env_name_spec = "Remote"; | |
31 | ||
32 | #ifdef ENV_IS_EMBEDDED | |
33 | env_t *env_ptr = &environment; | |
34 | #else /* ! ENV_IS_EMBEDDED */ | |
35 | env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; | |
36 | #endif /* ENV_IS_EMBEDDED */ | |
37 | ||
38 | DECLARE_GLOBAL_DATA_PTR; | |
39 | ||
40 | #if !defined(CONFIG_ENV_OFFSET) | |
41 | #define CONFIG_ENV_OFFSET 0 | |
42 | #endif | |
43 | ||
0a85a9e7 LG |
44 | int env_init(void) |
45 | { | |
46 | if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { | |
47 | gd->env_addr = (ulong)&(env_ptr->data); | |
48 | gd->env_valid = 1; | |
49 | return 0; | |
50 | } | |
51 | ||
52 | gd->env_addr = (ulong)default_environment; | |
53 | gd->env_valid = 0; | |
54 | return 0; | |
55 | } | |
56 | ||
57 | #ifdef CONFIG_CMD_SAVEENV | |
58 | int saveenv(void) | |
59 | { | |
461632bd LG |
60 | #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE |
61 | printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n"); | |
0a85a9e7 LG |
62 | return 1; |
63 | #else | |
64 | return 0; | |
65 | #endif | |
66 | } | |
67 | #endif /* CONFIG_CMD_SAVEENV */ | |
68 | ||
69 | void env_relocate_spec(void) | |
70 | { | |
71 | #ifndef ENV_IS_EMBEDDED | |
72 | env_import((char *)env_ptr, 1); | |
73 | #endif | |
74 | } |