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cmd: env: add env select command

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Add the new command 'env select' to force the persistent storage
of environment, saved in gd->env_load_prio.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay
2020-07-28 11:51:21 +02:00
committed by Tom Rini
parent 0115dd3a6a
commit a97d22ebba
4 changed files with 69 additions and 1 deletions
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5
cmd/Kconfig
View File

@@ -610,6 +610,11 @@ config CMD_NVEDIT_LOAD
Load all environment variables from the compiled-in persistent
storage.
config CMD_NVEDIT_SELECT
bool "env select"
help
Select the compiled-in persistent storage of environment variables.
endmenu
menu "Memory commands"

15
cmd/nvedit.c
View File

@@ -802,6 +802,15 @@ static int do_env_load(struct cmd_tbl *cmdtp, int flag, int argc,
return env_reload() ? 1 : 0;
}
#endif
#if defined(CONFIG_CMD_NVEDIT_SELECT)
static int do_env_select(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return env_select(argv[1]) ? 1 : 0;
}
#endif
#endif /* CONFIG_SPL_BUILD */
int env_match(uchar *s1, int i2)
@@ -1367,6 +1376,9 @@ static struct cmd_tbl cmd_env_sub[] = {
#if defined(CONFIG_CMD_ERASEENV)
U_BOOT_CMD_MKENT(erase, 1, 0, do_env_erase, "", ""),
#endif
#endif
#if defined(CONFIG_CMD_NVEDIT_SELECT)
U_BOOT_CMD_MKENT(select, 2, 0, do_env_select, "", ""),
#endif
U_BOOT_CMD_MKENT(set, CONFIG_SYS_MAXARGS, 0, do_env_set, "", ""),
#if defined(CONFIG_CMD_ENV_EXISTS)
@@ -1456,6 +1468,9 @@ static char env_help_text[] =
#if defined(CONFIG_CMD_NVEDIT_LOAD)
"env load - load environment\n"
#endif
#if defined(CONFIG_CMD_NVEDIT_SELECT)
"env select [target] - select environment target\n"
#endif
#if defined(CONFIG_CMD_NVEDIT_EFI)
"env set -e [-nv][-bs][-rt][-at][-a][-i addr,size][-v] name [arg ...]\n"
" - set UEFI variable; unset if '-i' or 'arg' not specified\n"