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author | Sascha Hauer <s.hauer@pengutronix.de> | 2014-06-18 15:12:05 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-11-06 10:58:54 +0100 |
commit | 3249006a2facd31a072fd2808991697b4727643e (patch) | |
tree | ec4e5dd4fbd1ea124349a23cb3664bda4ba2e1aa /common/startup.c | |
parent | fe39e8aadc3e2f3d87bb5b6f8c6ebb4fb1a84253 (diff) | |
download | barebox-3249006a2facd31a072fd2808991697b4727643e.tar.gz barebox-3249006a2facd31a072fd2808991697b4727643e.tar.xz |
Add support for non volatile variables
This adds (back) support for non volatile variables. Non volatile
variables are variables which are stored in the environment over
reboot. They are used in the same way as the global variables, but
with a 'nv' command and device. The variables are stored under
/env/nv/, one variable per file. Adding a nv variable automatically
adds a global variable with the same name. Changing a nv variable
also changes the same global variable, but not the other way round.
This allows for example to configure the username as:
nv user=sha; saveenv
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'common/startup.c')
-rw-r--r-- | common/startup.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/common/startup.c b/common/startup.c index f164142c6e..2b92efcb95 100644 --- a/common/startup.c +++ b/common/startup.c @@ -40,6 +40,7 @@ #include <envfs.h> #include <asm/sections.h> #include <uncompress.h> +#include <globalvar.h> extern initcall_t __barebox_initcalls_start[], __barebox_early_initcalls_end[], __barebox_initcalls_end[]; @@ -84,6 +85,7 @@ void __noreturn start_barebox(void) defaultenv_load("/env", 0); envfs_load(default_environment_path, "/env", 0); + nvvar_load(); } if (IS_ENABLED(CONFIG_COMMAND_SUPPORT)) { |