SPD_DDR4_RAS_RC_UPPER
{ .sp_off = SPD_DDR4_RAS_RC_UPPER, .sp_len = 2,
{ .sp_off = SPD_DDR4_RAS_RC_UPPER, .sp_key = SPD_KEY_TRC_MIN,
.sp_len = SPD_DDR4_TRC_MIN_FINE - SPD_DDR4_RAS_RC_UPPER + 1,