XSPI_CDABUF0
regmap_write(xspi->regmap, XSPI_CDABUF0, 0);
regmap_write(xspi->regmap, XSPI_CDABUF0, xspi->smadr);
regmap_write(xspi->regmap, XSPI_CDABUF0, xspi->smadr + pos);
regmap_write(xspi->regmap, XSPI_CDABUF0,