csio_hw_sf1_write
ret = csio_hw_sf1_write(hw, 1, 1, 1, SF_RD_STATUS);
ret = csio_hw_sf1_write(hw, 4, 1, 0, addr);
ret = csio_hw_sf1_write(hw, 1, 0, 1, SF_WR_ENABLE);
ret = csio_hw_sf1_write(hw, 4, 1, 1, val);
ret = csio_hw_sf1_write(hw, c, c != left, 1, val);
ret = csio_hw_sf1_write(hw, 1, 0, 1, SF_WR_ENABLE);
ret = csio_hw_sf1_write(hw, 4, 0, 1,
ret = csio_hw_sf1_write(hw, 1, 1, 0, SF_RD_ID);