SPIFMC_TRAN_NUM
writel(len, spifmc->io_base + SPIFMC_TRAN_NUM);
writel(op->data.nbytes, spifmc->io_base + SPIFMC_TRAN_NUM);
writel(len, spifmc->io_base + SPIFMC_TRAN_NUM);
writel(len, spifmc->io_base + SPIFMC_TRAN_NUM);