Joe Hershberger | 2b74433 | 2013-04-08 10:32:51 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * (c) Copyright 2012 by National Instruments, |
| 3 | * Joe Hershberger <joe.hershberger@ni.com> |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
| 24 | #include <common.h> |
| 25 | |
| 26 | #include <command.h> |
| 27 | #include <environment.h> |
| 28 | #include <errno.h> |
| 29 | #include <malloc.h> |
| 30 | #include <search.h> |
| 31 | #include <ubi_uboot.h> |
| 32 | #undef crc32 |
| 33 | |
| 34 | char *env_name_spec = "UBI"; |
| 35 | |
| 36 | env_t *env_ptr; |
| 37 | |
| 38 | DECLARE_GLOBAL_DATA_PTR; |
| 39 | |
| 40 | int env_init(void) |
| 41 | { |
| 42 | /* use default */ |
| 43 | gd->env_addr = (ulong)&default_environment[0]; |
| 44 | gd->env_valid = 1; |
| 45 | |
| 46 | return 0; |
| 47 | } |
| 48 | |
| 49 | #ifdef CONFIG_CMD_SAVEENV |
| 50 | int saveenv(void) |
| 51 | { |
| 52 | ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1); |
| 53 | ssize_t len; |
| 54 | char *res; |
| 55 | |
| 56 | res = (char *)&env_new->data; |
| 57 | len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL); |
| 58 | if (len < 0) { |
| 59 | error("Cannot export environment: errno = %d\n", errno); |
| 60 | return 1; |
| 61 | } |
| 62 | |
| 63 | if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) { |
| 64 | printf("\n** Cannot find mtd partition \"%s\"\n", |
| 65 | CONFIG_ENV_UBI_PART); |
| 66 | return 1; |
| 67 | } |
| 68 | |
| 69 | env_new->crc = crc32(0, env_new->data, ENV_SIZE); |
| 70 | |
| 71 | if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME, (void *)env_new, |
| 72 | CONFIG_ENV_SIZE)) { |
| 73 | printf("\n** Unable to write env to %s:%s **\n", |
| 74 | CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME); |
| 75 | return 1; |
| 76 | } |
| 77 | |
| 78 | puts("done\n"); |
| 79 | return 0; |
| 80 | } |
| 81 | #endif /* CONFIG_CMD_SAVEENV */ |
| 82 | |
| 83 | void env_relocate_spec(void) |
| 84 | { |
| 85 | ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE); |
| 86 | |
| 87 | if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) { |
| 88 | printf("\n** Cannot find mtd partition \"%s\"\n", |
| 89 | CONFIG_ENV_UBI_PART); |
| 90 | set_default_env(NULL); |
| 91 | return; |
| 92 | } |
| 93 | |
| 94 | if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, (void *)&buf, |
| 95 | CONFIG_ENV_SIZE)) { |
| 96 | printf("\n** Unable to read env from %s:%s **\n", |
| 97 | CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME); |
| 98 | set_default_env(NULL); |
| 99 | return; |
| 100 | } |
| 101 | |
| 102 | env_import(buf, 1); |
| 103 | } |