]>
git.ipfire.org Git - people/ms/u-boot.git/blob - common/env_ext4.c
2 * (c) Copyright 2016 by VRT Technology
5 * Stuart Longland <stuartl@vrt.com.au>
7 * Based on FAT environment driver
8 * (c) Copyright 2011 by Tigris Elektronik GmbH
11 * Maximilian Schwerin <mvs@tigris.de>
13 * and EXT4 filesystem implementation
14 * (C) Copyright 2011 - 2012 Samsung Electronics
15 * EXT4 filesystem implementation in Uboot by
16 * Uma Shankar <uma.shankar@samsung.com>
17 * Manjunatha C Achar <a.manjunatha@samsung.com>
19 * SPDX-License-Identifier: GPL-2.0+
25 #include <environment.h>
26 #include <linux/stddef.h>
34 char *env_name_spec
= "EXT4";
38 DECLARE_GLOBAL_DATA_PTR
;
43 gd
->env_addr
= (ulong
)&default_environment
[0];
49 #ifdef CONFIG_CMD_SAVEENV
53 struct blk_desc
*dev_desc
= NULL
;
54 disk_partition_t info
;
58 err
= env_export(&env_new
);
62 part
= blk_get_device_part_str(EXT4_ENV_INTERFACE
,
63 EXT4_ENV_DEVICE_AND_PART
,
68 dev
= dev_desc
->devnum
;
69 ext4fs_set_blk_dev(dev_desc
, &info
);
71 if (!ext4fs_mount(info
.size
)) {
72 printf("\n** Unable to use %s %s for saveenv **\n",
73 EXT4_ENV_INTERFACE
, EXT4_ENV_DEVICE_AND_PART
);
77 err
= ext4fs_write(EXT4_ENV_FILE
, (void *)&env_new
, sizeof(env_t
));
81 printf("\n** Unable to write \"%s\" from %s%d:%d **\n",
82 EXT4_ENV_FILE
, EXT4_ENV_INTERFACE
, dev
, part
);
89 #endif /* CONFIG_CMD_SAVEENV */
91 void env_relocate_spec(void)
93 ALLOC_CACHE_ALIGN_BUFFER(char, buf
, CONFIG_ENV_SIZE
);
94 struct blk_desc
*dev_desc
= NULL
;
95 disk_partition_t info
;
100 part
= blk_get_device_part_str(EXT4_ENV_INTERFACE
,
101 EXT4_ENV_DEVICE_AND_PART
,
102 &dev_desc
, &info
, 1);
104 goto err_env_relocate
;
106 dev
= dev_desc
->devnum
;
107 ext4fs_set_blk_dev(dev_desc
, &info
);
109 if (!ext4fs_mount(info
.size
)) {
110 printf("\n** Unable to use %s %s for loading the env **\n",
111 EXT4_ENV_INTERFACE
, EXT4_ENV_DEVICE_AND_PART
);
112 goto err_env_relocate
;
115 err
= ext4_read_file(EXT4_ENV_FILE
, buf
, 0, CONFIG_ENV_SIZE
, &off
);
119 printf("\n** Unable to read \"%s\" from %s%d:%d **\n",
120 EXT4_ENV_FILE
, EXT4_ENV_INTERFACE
, dev
, part
);
121 goto err_env_relocate
;
128 set_default_env(NULL
);