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cmd: env: add env load command

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Add the new command env load to load the environment from
the current location gd->env_load_prio.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay
2020-07-28 11:51:20 +02:00
committed by Tom Rini
parent 466d9855d4
commit 0115dd3a6a
4 changed files with 55 additions and 0 deletions
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6
cmd/Kconfig
View File

@@ -604,6 +604,12 @@ config CMD_NVEDIT_INFO
[-q] : quiet output
The result of multiple evaluations will be combined with AND.
config CMD_NVEDIT_LOAD
bool "env load"
help
Load all environment variables from the compiled-in persistent
storage.
endmenu
menu "Memory commands"

14
cmd/nvedit.c
View File

@@ -794,6 +794,14 @@ U_BOOT_CMD(
);
#endif
#endif
#if defined(CONFIG_CMD_NVEDIT_LOAD)
static int do_env_load(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return env_reload() ? 1 : 0;
}
#endif
#endif /* CONFIG_SPL_BUILD */
int env_match(uchar *s1, int i2)
@@ -1346,6 +1354,9 @@ static struct cmd_tbl cmd_env_sub[] = {
#endif
#if defined(CONFIG_CMD_NVEDIT_INFO)
U_BOOT_CMD_MKENT(info, 3, 0, do_env_info, "", ""),
#endif
#if defined(CONFIG_CMD_NVEDIT_LOAD)
U_BOOT_CMD_MKENT(load, 1, 0, do_env_load, "", ""),
#endif
U_BOOT_CMD_MKENT(print, CONFIG_SYS_MAXARGS, 1, do_env_print, "", ""),
#if defined(CONFIG_CMD_RUN)
@@ -1442,6 +1453,9 @@ static char env_help_text[] =
"env erase - erase environment\n"
#endif
#endif
#if defined(CONFIG_CMD_NVEDIT_LOAD)
"env load - load environment\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"