2 * (c) Copyright 2012 by National Instruments,
3 * Joe Hershberger <joe.hershberger@ni.com>
5 * SPDX-License-Identifier: GPL-2.0+
11 #include <environment.h>
16 #include <ubi_uboot.h>
19 char *env_name_spec
= "UBI";
23 DECLARE_GLOBAL_DATA_PTR
;
28 gd
->env_addr
= (ulong
)&default_environment
[0];
34 #ifdef CONFIG_CMD_SAVEENV
35 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
38 ALLOC_CACHE_ALIGN_BUFFER(env_t
, env_new
, 1);
41 ret
= env_export(env_new
);
45 if (ubi_part(CONFIG_ENV_UBI_PART
, NULL
)) {
46 printf("\n** Cannot find mtd partition \"%s\"\n",
51 if (gd
->env_valid
== 1) {
52 puts("Writing to redundant UBI... ");
53 if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME_REDUND
,
54 (void *)env_new
, CONFIG_ENV_SIZE
)) {
55 printf("\n** Unable to write env to %s:%s **\n",
57 CONFIG_ENV_UBI_VOLUME_REDUND
);
61 puts("Writing to UBI... ");
62 if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME
,
63 (void *)env_new
, CONFIG_ENV_SIZE
)) {
64 printf("\n** Unable to write env to %s:%s **\n",
66 CONFIG_ENV_UBI_VOLUME
);
73 gd
->env_valid
= gd
->env_valid
== 2 ? 1 : 2;
77 #else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */
80 ALLOC_CACHE_ALIGN_BUFFER(env_t
, env_new
, 1);
83 ret
= env_export(env_new
);
87 if (ubi_part(CONFIG_ENV_UBI_PART
, NULL
)) {
88 printf("\n** Cannot find mtd partition \"%s\"\n",
93 if (ubi_volume_write(CONFIG_ENV_UBI_VOLUME
, (void *)env_new
,
95 printf("\n** Unable to write env to %s:%s **\n",
96 CONFIG_ENV_UBI_PART
, CONFIG_ENV_UBI_VOLUME
);
103 #endif /* CONFIG_SYS_REDUNDAND_ENVIRONMENT */
104 #endif /* CONFIG_CMD_SAVEENV */
106 #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
107 void env_relocate_spec(void)
109 ALLOC_CACHE_ALIGN_BUFFER(char, env1_buf
, CONFIG_ENV_SIZE
);
110 ALLOC_CACHE_ALIGN_BUFFER(char, env2_buf
, CONFIG_ENV_SIZE
);
111 env_t
*tmp_env1
, *tmp_env2
;
114 * In case we have restarted u-boot there is a chance that buffer
115 * contains old environment (from the previous boot).
116 * If UBI volume is zero size, ubi_volume_read() doesn't modify the
118 * We need to clear buffer manually here, so the invalid CRC will
119 * cause setting default environment as expected.
121 memset(env1_buf
, 0x0, CONFIG_ENV_SIZE
);
122 memset(env2_buf
, 0x0, CONFIG_ENV_SIZE
);
124 tmp_env1
= (env_t
*)env1_buf
;
125 tmp_env2
= (env_t
*)env2_buf
;
127 if (ubi_part(CONFIG_ENV_UBI_PART
, NULL
)) {
128 printf("\n** Cannot find mtd partition \"%s\"\n",
129 CONFIG_ENV_UBI_PART
);
130 set_default_env(NULL
);
134 if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME
, (void *)tmp_env1
,
136 printf("\n** Unable to read env from %s:%s **\n",
137 CONFIG_ENV_UBI_PART
, CONFIG_ENV_UBI_VOLUME
);
140 if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME_REDUND
, (void *)tmp_env2
,
142 printf("\n** Unable to read redundant env from %s:%s **\n",
143 CONFIG_ENV_UBI_PART
, CONFIG_ENV_UBI_VOLUME_REDUND
);
146 env_import_redund((char *)tmp_env1
, (char *)tmp_env2
);
148 #else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */
149 void env_relocate_spec(void)
151 ALLOC_CACHE_ALIGN_BUFFER(char, buf
, CONFIG_ENV_SIZE
);
154 * In case we have restarted u-boot there is a chance that buffer
155 * contains old environment (from the previous boot).
156 * If UBI volume is zero size, ubi_volume_read() doesn't modify the
158 * We need to clear buffer manually here, so the invalid CRC will
159 * cause setting default environment as expected.
161 memset(buf
, 0x0, CONFIG_ENV_SIZE
);
163 if (ubi_part(CONFIG_ENV_UBI_PART
, NULL
)) {
164 printf("\n** Cannot find mtd partition \"%s\"\n",
165 CONFIG_ENV_UBI_PART
);
166 set_default_env(NULL
);
170 if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME
, buf
, CONFIG_ENV_SIZE
)) {
171 printf("\n** Unable to read env from %s:%s **\n",
172 CONFIG_ENV_UBI_PART
, CONFIG_ENV_UBI_VOLUME
);
173 set_default_env(NULL
);
179 #endif /* CONFIG_SYS_REDUNDAND_ENVIRONMENT */