SD_CLKC_REG
const u_int clkc = SDHC_READ(sc, SD_CLKC_REG);
clkc = SDHC_READ(sc, SD_CLKC_REG);
SDHC_WRITE(sc, SD_CLKC_REG, clkc);
SDHC_WRITE(sc, SD_CLKC_REG, clkc);
SDHC_WRITE(sc, SD_CLKC_REG, clkc);
SDHC_WRITE(sc, SD_CLKC_REG, clkc);
SDHC_WRITE(sc, SD_CLKC_REG, clkc);
SDHC_WRITE(sc, SD_CLKC_REG,
SDHC_READ(sc, SD_CLKC_REG) & ~SD_CLKC_MEM_PWR);
const uint32_t clkc = SDHC_READ(sc, SD_CLKC_REG);