projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 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> |
| 401d1c4f | 11 | #include <asm/global_data.h> |
| 0a85a9e7 | 12 | #include <linux/stddef.h> |
| 3db71108 | 13 | #include <u-boot/crc.h> |
| 0a85a9e7 | 14 | |
| 0a85a9e7 | 15 | #ifdef ENV_IS_EMBEDDED |
| 46d9d1c3 | 16 | static env_t *env_ptr = &environment; |
| 0a85a9e7 | 17 | #else /* ! ENV_IS_EMBEDDED */ |
| 46d9d1c3 | 18 | static env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; |
| 0a85a9e7 LG |
19 | #endif /* ENV_IS_EMBEDDED */ |
| 20 | ||
| 21 | DECLARE_GLOBAL_DATA_PTR; | |
| 22 | ||
| e5bce247 | 23 | static int env_remote_init(void) |
| 0a85a9e7 LG |
24 | { |
| 25 | if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { | |
| 26 | gd->env_addr = (ulong)&(env_ptr->data); | |
| 203e94f6 | 27 | gd->env_valid = ENV_VALID; |
| 0a85a9e7 LG |
28 | return 0; |
| 29 | } | |
| 30 | ||
| 7938822a | 31 | return -ENOENT; |
| 0a85a9e7 LG |
32 | } |
| 33 | ||
| 34 | #ifdef CONFIG_CMD_SAVEENV | |
| e5bce247 | 35 | static int env_remote_save(void) |
| 0a85a9e7 | 36 | { |
| 461632bd LG |
37 | #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE |
| 38 | printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n"); | |
| 0a85a9e7 LG |
39 | return 1; |
| 40 | #else | |
| 41 | return 0; | |
| 42 | #endif | |
| 43 | } | |
| 44 | #endif /* CONFIG_CMD_SAVEENV */ | |
| 45 | ||
| c5951991 | 46 | static int env_remote_load(void) |
| 0a85a9e7 LG |
47 | { |
| 48 | #ifndef ENV_IS_EMBEDDED | |
| 890feeca | 49 | return env_import((char *)env_ptr, 1, H_EXTERNAL); |
| 0a85a9e7 | 50 | #endif |
| c5951991 SG |
51 | |
| 52 | return 0; | |
| 0a85a9e7 | 53 | } |
| 4415f1d1 SG |
54 | |
| 55 | U_BOOT_ENV_LOCATION(remote) = { | |
| 56 | .location = ENVL_REMOTE, | |
| ac358beb | 57 | ENV_NAME("Remote") |
| e5bce247 SG |
58 | .load = env_remote_load, |
| 59 | .save = env_save_ptr(env_remote_save), | |
| 60 | .init = env_remote_init, | |
| 4415f1d1 | 61 | }; |