ESPI_SPMODEx
fsl_espi_write_reg(espi, ESPI_SPMODEx(spi_get_chipselect(spi, 0)),
cs->hw_mode = fsl_espi_read_reg(espi, ESPI_SPMODEx(spi_get_chipselect(spi, 0)));
fsl_espi_write_reg(espi, ESPI_SPMODEx(cs), csmode);