extern int s3c24xx_reset(struct nand_device_s *device);
extern int s3c24xx_command(struct nand_device_s *device, uint8_t command);
extern int s3c24xx_address(struct nand_device_s *device, uint8_t address);
-extern int s3c24xx_write_data(struct nand_device_s *device, u16 data);
+extern int s3c24xx_write_data(struct nand_device_s *device, uint16_t data);
extern int s3c24xx_read_data(struct nand_device_s *device, void *data);
extern int s3c24xx_controller_ready(struct nand_device_s *device, int tout);