diff options
Diffstat (limited to 'common/env_common.c')
| -rw-r--r-- | common/env_common.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/common/env_common.c b/common/env_common.c index d9e990d..3e46c26 100644 --- a/common/env_common.c +++ b/common/env_common.c @@ -80,6 +80,9 @@ const uchar default_environment[] = { #ifdef CONFIG_ETH5ADDR "eth5addr=" MK_STR(CONFIG_ETH5ADDR) "\0" #endif +#ifdef CONFIG_ETHPRIME + "ethprime=" CONFIG_ETHPRIME "\0" +#endif #ifdef CONFIG_IPADDR "ipaddr=" MK_STR(CONFIG_IPADDR) "\0" #endif @@ -133,7 +136,9 @@ const uchar default_environment[] = { "\0" }; -struct hsearch_data env_htab; +struct hsearch_data env_htab = { + .apply = env_check_apply, +}; static uchar __env_get_char_spec(int index) { @@ -175,6 +180,11 @@ const uchar *env_get_addr(int index) void set_default_env(const char *s) { + /* + * By default, do not apply changes as they will eventually + * be applied by someone else + */ + int do_apply = 0; if (sizeof(default_environment) > ENV_SIZE) { puts("*** Error - default environment is too large\n\n"); return; @@ -186,6 +196,14 @@ void set_default_env(const char *s) "using default environment\n\n", s + 1); } else { + /* + * This set_to_default was explicitly asked for + * by the user, as opposed to being a recovery + * mechanism. Therefore we check every single + * variable and apply changes to the system + * right away (e.g. baudrate, console). + */ + do_apply = 1; puts(s); } } else { @@ -193,12 +211,26 @@ void set_default_env(const char *s) } if (himport_r(&env_htab, (char *)default_environment, - sizeof(default_environment), '\0', 0) == 0) + sizeof(default_environment), '\0', 0, + 0, NULL, do_apply) == 0) error("Environment import failed: errno = %d\n", errno); gd->flags |= GD_FLG_ENV_READY; } + +/* [re]set individual variables to their value in the default environment */ +int set_default_vars(int nvars, char * const vars[]) +{ + /* + * Special use-case: import from default environment + * (and use \0 as a separator) + */ + return himport_r(&env_htab, (const char *)default_environment, + sizeof(default_environment), '\0', H_NOCLEAR, + nvars, vars, 1 /* do_apply */); +} + /* * Check if CRC is valid and (if yes) import the environment. * Note that "buf" may or may not be aligned. @@ -218,7 +250,8 @@ int env_import(const char *buf, int check) } } - if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0)) { + if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0, + 0, NULL, 0 /* do_apply */)) { gd->flags |= GD_FLG_ENV_READY; return 1; } |