env: Setup GD_FLG_ENV_DEFAULT flag when default environment are used

Setup flag when default environment are used to be able to
rewrite default distro boot variables based on SoC boot mode.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Alexander Graf <agraf@suse.de>

common/env_common.c

@@ -123,6 +123,7 @@ void set_default_env(const char *s)
 		error("Environment import failed: errno = %d\n", errno);
 
 	gd->flags |= GD_FLG_ENV_READY;
+	gd->flags |= GD_FLG_ENV_DEFAULT;
 }
 
 

include/asm-generic/global_data.h

@@ -141,5 +141,6 @@ typedef struct global_data {
 #define GD_FLG_SPL_INIT		0x00400	/* spl_init() has been called	   */
 #define GD_FLG_SKIP_RELOC	0x00800	/* Don't relocate */
 #define GD_FLG_RECORD		0x01000	/* Record console */
+#define GD_FLG_ENV_DEFAULT	0x02000 /* Default variable flag */
 
 #endif /* __ASM_GENERIC_GBL_DATA_H */