1 files changed, 68 insertions, 0 deletions
diff --git a/src/target/firmware/include/cfi_flash.h b/src/target/firmware/include/cfi_flash.h
new file mode 100644
index 00000000..2ab8842a
--- /dev/null
+++ b/src/target/firmware/include/cfi_flash.h
@@ -0,0 +1,68 @@
+
+#ifndef _CFI_FLASH_H
+#define _CFI_FLASH_H
+
+#include <stdint.h>
+
+
+#define CFI_FLASH_MAX_ERASE_REGIONS 4
+
+/* structure of erase region descriptor */
+struct cfi_region {
+	uint16_t b_count;
+	uint16_t b_size;
+} __attribute__((packed));
+
+
+/* structure of cfi query response */
+struct cfi_query {
+	uint8_t	qry[3];
+	uint16_t	p_id;
+	uint16_t	p_adr;
+	uint16_t	a_id;
+	uint16_t	a_adr;
+	uint8_t	vcc_min;
+	uint8_t	vcc_max;
+	uint8_t	vpp_min;
+	uint8_t	vpp_max;
+	uint8_t	word_write_timeout_typ;
+	uint8_t	buf_write_timeout_typ;
+	uint8_t	block_erase_timeout_typ;
+	uint8_t	chip_erase_timeout_typ;
+	uint8_t	word_write_timeout_max;
+	uint8_t	buf_write_timeout_max;
+	uint8_t	block_erase_timeout_max;
+	uint8_t chip_erase_timeout_max;
+	uint8_t	dev_size;
+	uint16_t	interface_desc;
+	uint16_t	max_buf_write_size;
+	uint8_t	num_erase_regions;
+	struct cfi_region  erase_regions[CFI_FLASH_MAX_ERASE_REGIONS];
+} __attribute__((packed));
+
+typedef struct {
+	void *f_base;
+
+	uint32_t f_size;
+
+	uint16_t f_manuf_id;
+	uint16_t f_dev_id;
+
+	struct cfi_query f_query;
+} cfi_flash_t;
+
+typedef uint8_t flash_lock;
+
+void flash_init(cfi_flash_t *flash, void *base_addr);
+
+void flash_dump_info(cfi_flash_t *flash);
+
+flash_lock flash_block_getlock(cfi_flash_t *base_addr, uint32_t block_offset);
+
+void flash_block_unlock(cfi_flash_t *base_addr, uint32_t block_offset);
+void flash_block_lock(cfi_flash_t *base_addr, uint32_t block_offset);
+void flash_block_lockdown(cfi_flash_t *base_addr, uint32_t block_offset);
+
+void flash_block_erase(cfi_flash_t *base_addr, uint32_t block_addr);
+
+#endif