CR_DMAEN
writel_relaxed(cr | CR_DMAEN, regs_base + OSPI_CR);
writel_relaxed(cr & ~CR_DMAEN, regs_base + OSPI_CR);
writel_relaxed(cr | CR_DMAEN, qspi->io_base + QSPI_CR);
writel_relaxed(cr & ~CR_DMAEN, qspi->io_base + QSPI_CR);
SSIREG(SSICR) |= CR_DMAEN | CR_EN;
SSIREG(SSICR) &= ~(CR_DMAEN | CR_EN);