QSPI_FCR
writel_relaxed(FCR_CTCF | FCR_CTEF, qspi->io_base + QSPI_FCR);
writel_relaxed(FCR_CSMF, qspi->io_base + QSPI_FCR);
writel_relaxed(FCR_CTCF | FCR_CSMF, qspi->io_base + QSPI_FCR);