SDMMC_CTLR
reg_tmp = readb(priv->sdmmc_base + SDMMC_CTLR);
writeb(reg_tmp | CTLR_CMD_START, priv->sdmmc_base + SDMMC_CTLR);
reg_tmp = readb(priv->sdmmc_base + SDMMC_CTLR);
writeb(reg_tmp | CTLR_FIFO_RESET, priv->sdmmc_base + SDMMC_CTLR);
reg_tmp = readb(priv->sdmmc_base + SDMMC_CTLR);
priv->sdmmc_base + SDMMC_CTLR);
reg_tmp = readb(priv->sdmmc_base + SDMMC_CTLR);
writeb(reg_tmp | CTLR_FIFO_RESET, priv->sdmmc_base + SDMMC_CTLR);