Add getenv_hex() to return an environment variable as hex

[karo-tx-uboot.git] / common / cmd_nvedit.c

diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index 68b0f4f6d809b36e8e8b91a87ad07e4c21473c09..d893aa1854624899cef4eb3e274cc7d78c08253a 100644 (file)
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -315,6 +315,21 @@ int setenv_hex(const char *varname, ulong value)
        return setenv(varname, str);
 }
 
+ulong getenv_hex(const char *varname, ulong default_val)
+{
+       const char *s;
+       ulong value;
+       char *endp;
+
+       s = getenv(varname);
+       if (s)
+               value = simple_strtoul(s, &endp, 16);
+       if (!s || endp == s)
+               return default_val;
+
+       return value;
+}
+
 #ifndef CONFIG_SPL_BUILD
 static int do_env_set(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {