return ERROR_OK;
 }
 
-static int davinci_nand_device_command(struct command_context_s *cmd_ctx,
-               char *cmd, char **args, int argc,
-               struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(davinci_nand_device_command)
 {
        struct davinci_nand *info;
        target_t *target;
 
 
 /* nand device lpc3180 <target#> <oscillator_frequency>
  */
-static int lpc3180_nand_device_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(lpc3180_nand_device_command)
 {
        if (argc < 3)
        {
 
 static int imx31_address (struct nand_device_s *nand, uint8_t address);
 static int imx31_controller_ready (struct nand_device_s *nand, int tout);
 
-static int imx31_nand_device_command (struct command_context_s *cmd_ctx,
-                                     char *cmd, char **args, int argc,
-                                     struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(imx31_nand_device_command)
 {
        mx3_nf_controller_t *mx3_nf_info;
        mx3_nf_info = malloc (sizeof (mx3_nf_controller_t));
 
 
 struct nand_device_s;
 
+#define __NAND_DEVICE_COMMAND(name) \
+               COMMAND_HELPER(name, struct nand_device_s *nand)
+
 typedef struct nand_flash_controller_s
 {
        char *name;
-       int (*nand_device_command)(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct nand_device_s *nand);
+       __NAND_DEVICE_COMMAND((*nand_device_command));
        int (*register_commands)(struct command_context_s *cmd_ctx);
        int (*init)(struct nand_device_s *nand);
        int (*reset)(struct nand_device_s *nand);
        int (*nand_ready)(struct nand_device_s *nand, int timeout);
 } nand_flash_controller_t;
 
+#define NAND_DEVICE_COMMAND_HANDLER(name) static __NAND_DEVICE_COMMAND(name)
+
 typedef struct nand_block_s
 {
        uint32_t offset;
 
        return ERROR_OK;
 }
 
-int orion_nand_device_command(struct command_context_s *cmd_ctx, char *cmd,
-                             char **args, int argc,
-                             struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(orion_nand_device_command)
 {
        orion_nand_controller_t *hw;
        uint32_t base;
 
 
 #include "s3c24xx_nand.h"
 
-static int s3c2410_nand_device_command(struct command_context_s *cmd_ctx, char *cmd,
-                               char **args, int argc,
-                               struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(s3c2410_nand_device_command)
 {
        s3c24xx_nand_controller_t *info;
        CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
 
 
 #include "s3c24xx_nand.h"
 
-static int s3c2412_nand_device_command(struct command_context_s *cmd_ctx, char *cmd,
-                               char **args, int argc,
-                               struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(s3c2412_nand_device_command)
 {
        s3c24xx_nand_controller_t *info;
        CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
 
 #include "s3c24xx_nand.h"
 
 
-static int s3c2440_nand_device_command(struct command_context_s *cmd_ctx, char *cmd,
-                               char **args, int argc,
-                               struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(s3c2440_nand_device_command)
 {
        s3c24xx_nand_controller_t *info;
        CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
 
 #include "s3c24xx_nand.h"
 
 
-static int s3c2443_nand_device_command(struct command_context_s *cmd_ctx, char *cmd,
-                               char **args, int argc,
-                               struct nand_device_s *nand)
+NAND_DEVICE_COMMAND_HANDLER(s3c2443_nand_device_command)
 {
        s3c24xx_nand_controller_t *info;
        CALL_S3C24XX_DEVICE_COMMAND(nand, &info);