# error "is set"
# endif
extern unsigned long nand_env_oob_offset;
-# define CONFIG_ENV_OFFSET nand_env_oob_offset
# endif /* CONFIG_ENV_OFFSET_OOB */
#endif /* CONFIG_ENV_IS_IN_NAND */
extern env_t embedded_environment;
#endif /* ENV_IS_EMBEDDED */
-extern const unsigned char default_environment[];
+#ifdef DEFAULT_ENV_IS_RW
+extern char default_environment[];
+#else
+extern const 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);
+
+/**
+ * arch_env_get_location()- Provide the best location for the U-Boot environment
+ *
+ * It is a weak function allowing board to overidde the environment location
+ * on architecture level. This has lower priority than env_get_location(),
+ * which can be defined on board level.
+ *
+ * @op: operations performed on the environment
+ * @prio: priority between the multiple environments, 0 being the
+ * highest priority
+ * Return: an enum env_location value on success, or -ve error code.
+ */
+enum env_location arch_env_get_location(enum env_operation op, int prio);
+
+/**
+ * env_get_location()- Provide the best location for the U-Boot environment
+ *
+ * It is a weak function allowing board to overidde the environment location
+ * on board level. This has higher priority than arch_env_get_location(),
+ * which can be defined on architecture level.
+ *
+ * @op: operations performed on the environment
+ * @prio: priority between the multiple environments, 0 being the
+ * highest priority
+ * Return: an enum env_location value on success, or -ve error code.
+ */
+enum env_location env_get_location(enum env_operation op, int prio);
+
+/**
+ * env_fat_get_intf() - Provide the interface for env in FAT
+ *
+ * It is a weak function allowing board to overidde the default interface for
+ * U-Boot env in FAT: CONFIG_ENV_FAT_INTERFACE
+ *
+ * Return: string of interface, empty if not supported
+ */
+const char *env_fat_get_intf(void);
+
+/**
+ * env_fat_get_dev_part() - Provide the device and partition for env in FAT
+ *
+ * It is a weak function allowing board to overidde the default device and
+ * partition used for U-Boot env in FAT: CONFIG_ENV_FAT_DEVICE_AND_PART
+ *
+ * Return: string of device and partition
+ */
+char *env_fat_get_dev_part(void);
#endif /* DO_DEPS_ONLY */
#endif /* _ENV_INTERNAL_H_ */