xlp_spi_reg_read
cfg = xlp_spi_reg_read(xspi, cs, XLP_SPI_CONFIG);
rxfifo_cnt = xlp_spi_reg_read(xspi, xspi->cs, XLP_SPI_FIFO_WCNT);
rx_data = xlp_spi_reg_read(xspi, xspi->cs, XLP_SPI_RXDATA_FIFO);
txfifo_cnt = xlp_spi_reg_read(xspi, xspi->cs, XLP_SPI_FIFO_WCNT);
stat = xlp_spi_reg_read(xspi, xspi->cs, XLP_SPI_STATUS) &