SDMMC_STS1
writeb(0xFF, priv->sdmmc_base + SDMMC_STS1);
status1 = readb(priv->sdmmc_base + SDMMC_STS1);
writeb(status1, priv->sdmmc_base + SDMMC_STS1);
writeb(0xFF, priv->sdmmc_base + SDMMC_STS1);
writeb(0xFF, priv->sdmmc_base + SDMMC_STS1);
writeb(0xFF, priv->sdmmc_base + SDMMC_STS1);