E82545_NVM_ADDR_BITS
#define E82545_NVM_OPADDR_BITS (E82545_NVM_OPCODE_BITS + E82545_NVM_ADDR_BITS)
#define E82545_NVM_ADDR_MASK ((1 << E82545_NVM_ADDR_BITS)-1)
(((1 << E82545_NVM_OPCODE_BITS) - 1) << E82545_NVM_ADDR_BITS)
#define E82545_NVM_OPCODE_READ (0x6 << E82545_NVM_ADDR_BITS) /* read */
#define E82545_NVM_OPCODE_WRITE (0x5 << E82545_NVM_ADDR_BITS) /* write */
#define E82545_NVM_OPCODE_ERASE (0x7 << E82545_NVM_ADDR_BITS) /* erase */
#define E82545_NVM_OPCODE_EWEN (0x4 << E82545_NVM_ADDR_BITS) /* wr-enable */