barebox/scripts/imx/imx.h

/*
 * ============================================================================
 * i.MX flash header v1 handling. Found on i.MX35 and i.MX51
 * ============================================================================
 */
#define DCD_BARKER       0xb17219e9

struct imx_flash_header {
	uint32_t app_code_jump_vector;
	uint32_t app_code_barker;
	uint32_t app_code_csf;
	uint32_t dcd_ptr_ptr;
	uint32_t super_root_key;
	uint32_t dcd;
	uint32_t app_dest;
	uint32_t dcd_barker;
	uint32_t dcd_block_len;
} __attribute__((packed));

struct imx_boot_data {
	uint32_t start;
	uint32_t size;
	uint32_t plugin;
} __attribute__((packed));

#define TAG_IVT_HEADER	0xd1
#define IVT_VERSION	0x40
#define TAG_DCD_HEADER	0xd2
#define DCD_VERSION	0x40
#define TAG_WRITE	0xcc
#define TAG_CHECK	0xcf

struct imx_ivt_header {
	uint8_t tag;
	uint16_t length;
	uint8_t version;
} __attribute__((packed));

struct imx_flash_header_v2 {
	struct imx_ivt_header header;

	uint32_t entry;
	uint32_t reserved1;
	uint32_t dcd_ptr;
	uint32_t boot_data_ptr;
	uint32_t self;
	uint32_t csf;
	uint32_t reserved2;

	struct imx_boot_data boot_data;
	struct imx_ivt_header dcd_header;
} __attribute__((packed));

struct config_data {
	uint32_t image_load_addr;
	uint32_t image_dcd_offset;
	uint32_t image_size;
	uint32_t load_size;
	char *outfile;
	char *srkfile;
	int header_version;
	int cpu_type;
	int (*check)(struct config_data *data, uint32_t cmd, uint32_t addr, uint32_t mask);
	int (*write_mem)(struct config_data *data, uint32_t addr, uint32_t val, int width);
};

int parse_config(struct config_data *data, const char *filename);