SD_EMMC_STATUS
MMC_WRITE(sc, SD_EMMC_STATUS, STATUS_IRQ_SDIO);
const uint32_t status = MMC_READ(sc, SD_EMMC_STATUS) & irq_en;
MMC_WRITE(sc, SD_EMMC_STATUS, irq_en);
MMC_WRITE(sc, SD_EMMC_STATUS, MMC_READ(sc, SD_EMMC_STATUS));