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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
0a85a9e7 LG |
2 | /* |
3 | * (C) Copyright 2011-2012 Freescale Semiconductor, Inc. | |
0a85a9e7 LG |
4 | */ |
5 | ||
6 | /* #define DEBUG */ | |
7 | ||
8 | #include <common.h> | |
9 | #include <command.h> | |
f3998fdc | 10 | #include <env_internal.h> |
0a85a9e7 | 11 | #include <linux/stddef.h> |
3db71108 | 12 | #include <u-boot/crc.h> |
0a85a9e7 | 13 | |
0a85a9e7 | 14 | #ifdef ENV_IS_EMBEDDED |
46d9d1c3 | 15 | static env_t *env_ptr = &environment; |
0a85a9e7 | 16 | #else /* ! ENV_IS_EMBEDDED */ |
46d9d1c3 | 17 | static env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; |
0a85a9e7 LG |
18 | #endif /* ENV_IS_EMBEDDED */ |
19 | ||
20 | DECLARE_GLOBAL_DATA_PTR; | |
21 | ||
e5bce247 | 22 | static int env_remote_init(void) |
0a85a9e7 LG |
23 | { |
24 | if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { | |
25 | gd->env_addr = (ulong)&(env_ptr->data); | |
203e94f6 | 26 | gd->env_valid = ENV_VALID; |
0a85a9e7 LG |
27 | return 0; |
28 | } | |
29 | ||
7938822a | 30 | return -ENOENT; |
0a85a9e7 LG |
31 | } |
32 | ||
33 | #ifdef CONFIG_CMD_SAVEENV | |
e5bce247 | 34 | static int env_remote_save(void) |
0a85a9e7 | 35 | { |
461632bd LG |
36 | #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE |
37 | printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n"); | |
0a85a9e7 LG |
38 | return 1; |
39 | #else | |
40 | return 0; | |
41 | #endif | |
42 | } | |
43 | #endif /* CONFIG_CMD_SAVEENV */ | |
44 | ||
c5951991 | 45 | static int env_remote_load(void) |
0a85a9e7 LG |
46 | { |
47 | #ifndef ENV_IS_EMBEDDED | |
2166ebf7 | 48 | return env_import((char *)env_ptr, 1); |
0a85a9e7 | 49 | #endif |
c5951991 SG |
50 | |
51 | return 0; | |
0a85a9e7 | 52 | } |
4415f1d1 SG |
53 | |
54 | U_BOOT_ENV_LOCATION(remote) = { | |
55 | .location = ENVL_REMOTE, | |
ac358beb | 56 | ENV_NAME("Remote") |
e5bce247 SG |
57 | .load = env_remote_load, |
58 | .save = env_save_ptr(env_remote_save), | |
59 | .init = env_remote_init, | |
4415f1d1 | 60 | }; |