RTSX_CLK_DIVIDE_MASK
error = rtsx_write(sc, RTSX_SD_CFG1, RTSX_CLK_DIVIDE_MASK, 0);
error = rtsx_write(sc, RTSX_SD_CFG1, RTSX_CLK_DIVIDE_MASK, 0);
error = rtsx_write(sc, RTSX_SD_CFG1, RTSX_CLK_DIVIDE_MASK, 0);
error = rtsx_write(sc, RTSX_SD_CFG1, RTSX_CLK_DIVIDE_MASK, 0);
error = rtsx_write(sc, RTSX_SD_CFG1, RTSX_CLK_DIVIDE_MASK, 0);