XSPI_CR_LOOP
cr |= XSPI_CR_LOOP;
XSPI_CR_LSB_FIRST | XSPI_CR_LOOP)
xspi->write_fn(XSPI_CR_LOOP, xspi->regs + XSPI_CR_OFFSET);
tmp &= XSPI_CR_LOOP;
if (tmp != XSPI_CR_LOOP) {