fsl_espi_write_reg
fsl_espi_write_reg(espi, ESPI_SPITF, 0);
fsl_espi_write_reg(espi, ESPI_SPITF,
fsl_espi_write_reg(espi, ESPI_SPITF,
fsl_espi_write_reg(espi, ESPI_SPMODEx(spi_get_chipselect(spi, 0)),
fsl_espi_write_reg(espi, ESPI_SPCOM, spcom);
fsl_espi_write_reg(espi, ESPI_SPIM, mask);
fsl_espi_write_reg(espi, ESPI_SPIM, 0);
fsl_espi_write_reg(espi, ESPI_SPMODE, loop_mode);
fsl_espi_write_reg(espi, ESPI_SPIE, events);
fsl_espi_write_reg(espi, ESPI_SPMODE, regval);
fsl_espi_write_reg(espi, ESPI_SPMODE, regval);
fsl_espi_write_reg(espi, ESPI_SPMODE, 0);
fsl_espi_write_reg(espi, ESPI_SPIM, 0);
fsl_espi_write_reg(espi, ESPI_SPCOM, 0);
fsl_espi_write_reg(espi, ESPI_SPIE, 0xffffffff);
fsl_espi_write_reg(espi, ESPI_SPMODEx(cs), csmode);
fsl_espi_write_reg(espi, ESPI_SPMODE, SPMODE_INIT_VAL | SPMODE_ENABLE);