*************************************************************************/
#if defined(CONFIG_ENV_IS_IN_FLASH)
-# ifndef CONFIG_ENV_ADDR
-# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET)
-# endif
-# ifndef CONFIG_ENV_OFFSET
-# define CONFIG_ENV_OFFSET (CONFIG_ENV_ADDR - CONFIG_SYS_FLASH_BASE)
-# endif
-# if !defined(CONFIG_ENV_ADDR_REDUND) && defined(CONFIG_ENV_OFFSET_REDUND)
-# define CONFIG_ENV_ADDR_REDUND \
- (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET_REDUND)
-# endif
-# if defined(CONFIG_ENV_SECT_SIZE) || defined(CONFIG_ENV_SIZE)
-# ifndef CONFIG_ENV_SECT_SIZE
-# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE
-# endif
-# ifndef CONFIG_ENV_SIZE
-# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE
-# endif
-# else
-# error "Both CONFIG_ENV_SECT_SIZE and CONFIG_ENV_SIZE undefined"
-# endif
-# if defined(CONFIG_ENV_ADDR_REDUND) && !defined(CONFIG_ENV_SIZE_REDUND)
-# define CONFIG_ENV_SIZE_REDUND CONFIG_ENV_SIZE
+# if defined(CONFIG_ENV_ADDR_REDUND) && \
+ ((CONFIG_ENV_ADDR >= CONFIG_SYS_MONITOR_BASE) && \
+ (CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SIZE) <= \
+ (CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN))
+# define ENV_IS_EMBEDDED
# endif
# if (CONFIG_ENV_ADDR >= CONFIG_SYS_MONITOR_BASE) && \
(CONFIG_ENV_ADDR + CONFIG_ENV_SIZE) <= \
# error "is set"
# endif
extern unsigned long nand_env_oob_offset;
-# define CONFIG_ENV_OFFSET nand_env_oob_offset
-# else
-# ifndef CONFIG_ENV_OFFSET
-# error "Need to define CONFIG_ENV_OFFSET when using CONFIG_ENV_IS_IN_NAND"
-# endif
# endif /* CONFIG_ENV_OFFSET_OOB */
-# ifndef CONFIG_ENV_SIZE
-# error "Need to define CONFIG_ENV_SIZE when using CONFIG_ENV_IS_IN_NAND"
-# endif
#endif /* CONFIG_ENV_IS_IN_NAND */
-#if defined(CONFIG_ENV_IS_IN_UBI)
-# ifndef CONFIG_ENV_UBI_PART
-# error "Need to define CONFIG_ENV_UBI_PART when using CONFIG_ENV_IS_IN_UBI"
-# endif
-# ifndef CONFIG_ENV_UBI_VOLUME
-# error "Need to define CONFIG_ENV_UBI_VOLUME when using CONFIG_ENV_IS_IN_UBI"
-# endif
-# ifndef CONFIG_ENV_SIZE
-# error "Need to define CONFIG_ENV_SIZE when using CONFIG_ENV_IS_IN_UBI"
-# endif
-# ifndef CONFIG_CMD_UBI
-# error "Need to define CONFIG_CMD_UBI when using CONFIG_ENV_IS_IN_UBI"
-# endif
-#endif /* CONFIG_ENV_IS_IN_UBI */
-
-/* Embedded env is only supported for some flash types */
-#ifdef CONFIG_ENV_IS_EMBEDDED
-# if !defined(CONFIG_ENV_IS_IN_FLASH) && \
- !defined(CONFIG_ENV_IS_IN_NAND) && \
- !defined(CONFIG_ENV_IS_IN_ONENAND) && \
- !defined(CONFIG_ENV_IS_IN_SPI_FLASH)
-# error "CONFIG_ENV_IS_EMBEDDED not supported for your flash type"
-# endif
-#endif
-
/*
* For the flash types where embedded env is supported, but it cannot be
* calculated automatically (i.e. NAND), take the board opt-in.
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
*/
#define env_save_ptr(x) NULL
#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_ */
projects / platform / kernel / u-boot.git / blobdiff