| | 1 | /* |
| | 2 | * (C) Copyright 2011-2012 Freescale Semiconductor, Inc. |
| | 3 | * |
| | 4 | * SPDX-License-Identifier: GPL-2.0+ |
| | 5 | */ |
| | 6 | |
| | 7 | /* #define DEBUG */ |
| | 8 | |
| | 9 | #include <common.h> |
| | 10 | #include <command.h> |
| | 11 | #include <environment.h> |
| | 12 | #include <linux/stddef.h> |
| | 13 | |
| | 14 | #ifdef ENV_IS_EMBEDDED |
| | 15 | env_t *env_ptr = &environment; |
| | 16 | #else /* ! ENV_IS_EMBEDDED */ |
| | 17 | env_t *env_ptr = (env_t *)CONFIG_ENV_ADDR; |
| | 18 | #endif /* ENV_IS_EMBEDDED */ |
| | 19 | |
| | 20 | DECLARE_GLOBAL_DATA_PTR; |
| | 21 | |
| | 22 | #if !defined(CONFIG_ENV_OFFSET) |
| | 23 | #define CONFIG_ENV_OFFSET 0 |
| | 24 | #endif |
| | 25 | |
| | 26 | static int env_remote_init(void) |
| | 27 | { |
| | 28 | if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) { |
| | 29 | gd->env_addr = (ulong)&(env_ptr->data); |
| | 30 | gd->env_valid = ENV_VALID; |
| | 31 | return 0; |
| | 32 | } |
| | 33 | |
| | 34 | return -ENOENT; |
| | 35 | } |
| | 36 | |
| | 37 | #ifdef CONFIG_CMD_SAVEENV |
| | 38 | static int env_remote_save(void) |
| | 39 | { |
| | 40 | #ifdef CONFIG_SRIO_PCIE_BOOT_SLAVE |
| | 41 | printf("Can not support the 'saveenv' when boot from SRIO or PCIE!\n"); |
| | 42 | return 1; |
| | 43 | #else |
| | 44 | return 0; |
| | 45 | #endif |
| | 46 | } |
| | 47 | #endif /* CONFIG_CMD_SAVEENV */ |
| | 48 | |
| | 49 | static int env_remote_load(void) |
| | 50 | { |
| | 51 | #ifndef ENV_IS_EMBEDDED |
| | 52 | env_import((char *)env_ptr, 1); |
| | 53 | #endif |
| | 54 | |
| | 55 | return 0; |
| | 56 | } |
| | 57 | |
| | 58 | U_BOOT_ENV_LOCATION(remote) = { |
| | 59 | .location = ENVL_REMOTE, |
| | 60 | ENV_NAME("Remote") |
| | 61 | .load = env_remote_load, |
| | 62 | .save = env_save_ptr(env_remote_save), |
| | 63 | .init = env_remote_init, |
| | 64 | }; |
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