SDMMC_INTMASK
WRITE4(sc, SDMMC_INTMASK, 0);
WRITE4(sc, SDMMC_INTMASK, (SDMMC_INTMASK_CMD_DONE |
reg = READ4(sc, SDMMC_INTMASK);
WRITE4(sc, SDMMC_INTMASK, reg);