QSPI_BYTES_PER_WORD
words_to_read = wr_cnts / QSPI_BYTES_PER_WORD;
bytes_to_read = wr_cnts % QSPI_BYTES_PER_WORD;
ctrl->xfer.rem_bytes -= words_to_read * QSPI_BYTES_PER_WORD;
if (ctrl->xfer.rem_bytes < QSPI_BYTES_PER_WORD) {
rem_words = ctrl->xfer.rem_bytes / QSPI_BYTES_PER_WORD;
wr_fifo_words = wr_fifo_bytes / QSPI_BYTES_PER_WORD;
ctrl->xfer.rem_bytes -= wr_size * QSPI_BYTES_PER_WORD;