view loadtools/flash.h @ 992:a7b0b426f9ca

target-utils: boot ROM UART autodetection revamped The new implementation should work with both the familiar Calypso C035 boot ROM version found in our regular targets as well as the older Calypso F741979B version found on the vintage D-Sample board.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Wed, 30 Dec 2015 21:28:41 +0000
parents 23ab8fe81764
children
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/* this header file contains definitions for fc-loadtool flash support */

/*
 * The following structures represent an "abstract"
 * description of flash devices.
 *
 * A "region" is a consecutive group of erase units of the same size.
 */

struct flash_region_desc {
	uint32_t	sector_size;
	unsigned	nsectors;
};

#define	CFI_MAX_REGIONS		4

/*
 * The info in struct flash_geom can be either
 * gathered from CFI or hard-coded.
 */
struct flash_geom {
	uint32_t			total_size;
	unsigned			nregions;
	struct flash_region_desc	regions[CFI_MAX_REGIONS];
	unsigned			total_sectors;
};

struct flash_idcheck {
	uint16_t	offset;
	uint16_t	expect_val;
};

struct flash_bank_desc {
	uint32_t		align_size;
	struct flash_geom	*geom;
	struct flash_idcheck	*idcheck_table;
	unsigned		idcheck_num;
};

struct flash_device_desc {
	char			*name;
	struct flash_bank_desc	*bank_desc;
	unsigned		nbanks;
	struct flash_cmdset	*cmdset;
};

/* the following structures describe flash banks as accessible to us */

struct sector_info {
	uint32_t	start;
	uint32_t	size;
};

struct flash_cmdset {
	char	*cmdset_name;
	int	(*reset_cmd)();
	int	(*status_cmd)();
	int	(*unlock_sector)();
	int	(*erase_sector)();
	int	(*prep_for_program)();
	char	*loadagent_setbase_cmd;
	char	*loadagent_program_cmd;
	int	needs_unlock;
};

struct flash_bank_info {
	uint32_t		base_addr;
	struct flash_bank_desc	*bank_desc;
	struct flash_geom	*geom;
	struct flash_cmdset	*ops;
	struct sector_info	*sectors;
	int			idcheck_done;
};