]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/env_fat.c
2 * (c) Copyright 2011 by Tigris Elektronik GmbH
5 * Maximilian Schwerin <mvs@tigris.de>
7 * SPDX-License-Identifier: GPL-2.0+
13 #include <environment.h>
14 #include <linux/stddef.h>
22 char *env_name_spec
= "FAT";
26 DECLARE_GLOBAL_DATA_PTR
;
31 gd
->env_addr
= (ulong
)&default_environment
[0];
37 #ifdef CONFIG_CMD_SAVEENV
41 struct blk_desc
*dev_desc
= NULL
;
42 disk_partition_t info
;
47 err
= env_export(&env_new
);
51 part
= blk_get_device_part_str(FAT_ENV_INTERFACE
,
52 FAT_ENV_DEVICE_AND_PART
,
57 dev
= dev_desc
->devnum
;
58 if (fat_set_blk_dev(dev_desc
, &info
) != 0) {
59 printf("\n** Unable to use %s %d:%d for saveenv **\n",
60 FAT_ENV_INTERFACE
, dev
, part
);
64 err
= file_fat_write(FAT_ENV_FILE
, (void *)&env_new
, 0, sizeof(env_t
),
67 printf("\n** Unable to write \"%s\" from %s%d:%d **\n",
68 FAT_ENV_FILE
, FAT_ENV_INTERFACE
, dev
, part
);
75 #endif /* CONFIG_CMD_SAVEENV */
77 void env_relocate_spec(void)
79 ALLOC_CACHE_ALIGN_BUFFER(char, buf
, CONFIG_ENV_SIZE
);
80 struct blk_desc
*dev_desc
= NULL
;
81 disk_partition_t info
;
85 part
= blk_get_device_part_str(FAT_ENV_INTERFACE
,
86 FAT_ENV_DEVICE_AND_PART
,
89 goto err_env_relocate
;
91 dev
= dev_desc
->devnum
;
92 if (fat_set_blk_dev(dev_desc
, &info
) != 0) {
93 printf("\n** Unable to use %s %d:%d for loading the env **\n",
94 FAT_ENV_INTERFACE
, dev
, part
);
95 goto err_env_relocate
;
98 err
= file_fat_read(FAT_ENV_FILE
, buf
, CONFIG_ENV_SIZE
);
100 printf("\n** Unable to read \"%s\" from %s%d:%d **\n",
101 FAT_ENV_FILE
, FAT_ENV_INTERFACE
, dev
, part
);
102 goto err_env_relocate
;
109 set_default_env(NULL
);