extern env_t embedded_environment;
#endif /* ENV_IS_EMBEDDED */
+#ifdef DEFAULT_ENV_IS_RW
+extern unsigned char default_environment[];
+#else
extern const unsigned char default_environment[];
+#endif
#ifndef DO_DEPS_ONLY
/**
* load() - Load the environment from storage
*
- * This method is optional. If not provided, no environment will be
- * loaded.
+ * This method is required for loading environment
*
* @return 0 if OK, -ve on error
*/
#endif
#define ENV_SAVE_PTR(x) (CONFIG_IS_ENABLED(SAVEENV) ? (x) : NULL)
+#define ENV_ERASE_PTR(x) (CONFIG_IS_ENABLED(CMD_ERASEENV) ? (x) : NULL)
extern struct hsearch_data env_htab;
/**
+ * env_ext4_get_intf() - Provide the interface for env in EXT4
+ *
+ * It is a weak function allowing board to overidde the default interface for
+ * U-Boot env in EXT4: CONFIG_ENV_EXT4_INTERFACE
+ *
+ * @return string of interface, empty if not supported
+ */
+const char *env_ext4_get_intf(void);
+
+/**
+ * env_ext4_get_dev_part() - Provide the device and partition for env in EXT4
+ *
+ * It is a weak function allowing board to overidde the default device and
+ * partition used for U-Boot env in EXT4: CONFIG_ENV_EXT4_DEVICE_AND_PART
+ *
+ * @return string of device and partition
+ */
+const char *env_ext4_get_dev_part(void);
+
+/**
* env_get_location()- Provide the best location for the U-Boot environment
*
* It is a weak function allowing board to overidde the environment location