--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/loadtools/flash.h	Sat Jun 11 00:13:35 2016 +0000
@@ -0,0 +1,73 @@
+/* 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;
+};