These constants are defined in nand.h. They are ored together to describe the chip functionality.

/* Chip can not auto increment pages */
#define NAND_NO_AUTOINCR	0x00000001
/* Buswitdh is 16 bit */
#define NAND_BUSWIDTH_16	0x00000002
/* Device supports partial programming without padding */
#define NAND_NO_PADDING		0x00000004
/* Chip has cache program function */
#define NAND_CACHEPRG		0x00000008
/* Chip has copy back function */
#define NAND_COPYBACK		0x00000010
/* AND Chip which has 4 banks and a confusing page / block 
 * assignment. See Renesas datasheet for further information */
#define NAND_IS_AND		0x00000020
/* Chip has a array of 4 pages which can be read without
 * additional ready /busy waits */
#define NAND_4PAGE_ARRAY	0x00000040 
		

These constants are defined in nand.h. They are ored together to describe the functionality.

/* Use a flash based bad block table. This option is parsed by the
 * default bad block table function (nand_default_bbt). */
#define NAND_USE_FLASH_BBT	0x00010000
/* The hw ecc generator provides a syndrome instead a ecc value on read 
 * This can only work if we have the ecc bytes directly behind the 
 * data bytes. Applies for DOC and AG-AND Renesas HW Reed Solomon generators */
#define NAND_HWECC_SYNDROME	0x00020000