+int flash_unlock_address_range(struct target *target, uint32_t addr,
+ uint32_t length);
+
+/**
+ * Writes @a image into the @a target flash. The @a written parameter
+ * will contain the
+ * @param target The target with the flash to be programmed.
+ * @param image The image that will be programmed to flash.
+ * @param written On return, contains the number of bytes written.
+ * @param erase If non-zero, indicates the flash driver should first
+ * erase the corresponding banks or sectors before programming.
+ * @returns ERROR_OK if successful; otherwise, an error code.
+ */
+int flash_write(struct target *target,
+ struct image *image, uint32_t *written, int erase);
+
+/**
+ * Forces targets to re-examine their erase/protection state.
+ * This routine must be called when the system may modify the status.
+ */
+void flash_set_dirty(void);
+/** @returns The number of flash banks currently defined. */
+int flash_get_bank_count(void);
+/**
+ * Provides default read implementation for flash memory.
+ * @param bank The bank to read.
+ * @param buffer The data bytes read.
+ * @param offset The offset into the chip to read.
+ * @param count The number of bytes to read.
+ * @returns ERROR_OK if successful; otherwise, an error code.
+ */
+int default_flash_read(struct flash_bank *bank,
+ uint8_t *buffer, uint32_t offset, uint32_t count);
+/**
+ * Provides default erased-bank check handling. Checks to see if
+ * the flash driver knows they are erased; if things look uncertain,
+ * this routine will call default_flash_mem_blank_check() to confirm.
+ * @returns ERROR_OK if successful; otherwise, an error code.
+ */
+int default_flash_blank_check(struct flash_bank *bank);
+
+/**
+ * Returns the flash bank specified by @a name, which matches the
+ * driver name and a suffix (option) specify the driver-specific
+ * bank number. The suffix consists of the '.' and the driver-specific
+ * bank number: when two str9x banks are defined, then 'str9x.1' refers
+ * to the second.
+ */
+int get_flash_bank_by_name(const char *name, struct flash_bank **bank_result);
+/**
+ * Returns the flash bank specified by @a name, which matches the
+ * driver name and a suffix (option) specify the driver-specific
+ * bank number. The suffix consists of the '.' and the driver-specific
+ * bank number: when two str9x banks are defined, then 'str9x.1' refers
+ * to the second.
+ */
+struct flash_bank *get_flash_bank_by_name_noprobe(const char *name);
+/**
+ * Returns the flash bank like get_flash_bank_by_name(), without probing.
+ * @param num The flash bank number.
+ * @param bank returned bank if fn returns ERROR_OK
+ * @returns ERROR_OK if successful
+ */
+int get_flash_bank_by_num(int num, struct flash_bank **bank);
+/**
+ * Retreives @a bank from a command argument, reporting errors parsing
+ * the bank identifier or retreiving the specified bank. The bank
+ * may be identified by its bank number or by @c name.instance, where
+ * @a instance is driver-specific.
+ * @param name_index The index to the string in args containing the
+ * bank identifier.
+ * @param bank On output, contians a pointer to the bank or NULL.
+ * @returns ERROR_OK on success, or an error indicating the problem.
+ */
+COMMAND_HELPER(flash_command_get_bank, unsigned name_index,
+ struct flash_bank **bank);
+/**
+ * Returns the flash bank like get_flash_bank_by_num(), without probing.
+ * @param num The flash bank number.
+ * @returns A struct flash_bank for flash bank @a num, or NULL.
+ */
+struct flash_bank *get_flash_bank_by_num_noprobe(int num);