view loadtools/flash.h @ 505:7bf0d909c87e

fc-loadtool flash ID check: change of reset after the check logic This change only affects those flash configurations that have ID checks enabled. The logic for resetting the flash after the ID check has been changed as follows: 1) If the check fails, we return without attempting to reset the flash. 2) If the check is successful, we reset the flash using the configured method (could be AMD or Intel or Intel W30) instead of always doing an AMD flash reset as the original code did.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 27 May 2019 19:58:01 +0000
parents e7502631a0f9
children 0dd2c87c1b63
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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;
};