linux/arch/arm/mach-pxa/include/mach/pxa3xx_nand.h

#ifndef __ASM_ARCH_PXA3XX_NAND_H
#define __ASM_ARCH_PXA3XX_NAND_H

#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>

struct pxa3xx_nand_timing {
	unsigned int	tCH;  /* Enable signal hold time */
	unsigned int	tCS;  /* Enable signal setup time */
	unsigned int	tWH;  /* ND_nWE high duration */
	unsigned int	tWP;  /* ND_nWE pulse time */
	unsigned int	tRH;  /* ND_nRE high duration */
	unsigned int	tRP;  /* ND_nRE pulse width */
	unsigned int	tR;   /* ND_nWE high to ND_nRE low for read */
	unsigned int	tWHR; /* ND_nWE high to ND_nRE low for status read */
	unsigned int	tAR;  /* ND_ALE low to ND_nRE low delay */
};

struct pxa3xx_nand_cmdset {
	uint16_t	read1;
	uint16_t	read2;
	uint16_t	program;
	uint16_t	read_status;
	uint16_t	read_id;
	uint16_t	erase;
	uint16_t	reset;
	uint16_t	lock;
	uint16_t	unlock;
	uint16_t	lock_status;
};

struct pxa3xx_nand_flash {
	const struct pxa3xx_nand_timing *timing; /* NAND Flash timing */
	const struct pxa3xx_nand_cmdset *cmdset;

	uint32_t page_per_block;/* Pages per block (PG_PER_BLK) */
	uint32_t page_size;	/* Page size in bytes (PAGE_SZ) */
	uint32_t flash_width;	/* Width of Flash memory (DWIDTH_M) */
	uint32_t dfc_width;	/* Width of flash controller(DWIDTH_C) */
	uint32_t num_blocks;	/* Number of physical blocks in Flash */
	uint32_t chip_id;

	/* NOTE: these are automatically calculated, do not define */
	size_t		oob_size;
	size_t		read_id_bytes;

	unsigned int	col_addr_cycles;
	unsigned int	row_addr_cycles;
};

struct pxa3xx_nand_platform_data {

	/* the data flash bus is shared between the Static Memory
	 * Controller and the Data Flash Controller,  the arbiter
	 * controls the ownership of the bus
	 */
	int	enable_arbiter;

	const struct mtd_partition		*parts;
	unsigned int				nr_parts;

	struct pxa3xx_nand_flash * const	flash;
	size_t					num_flash;
};

extern void pxa3xx_set_nand_info(struct pxa3xx_nand_platform_data *info);
#endif /* __ASM_ARCH_PXA3XX_NAND_H */