SD_IO_RW_ADR
mmc_arg = SD_IO_RW_ADR(mmc_arg);
mmc_arg = SD_IO_RW_ADR(mmc_arg);
uint32_t mmc_arg = SD_IO_RW_ADR(SD_IO_CCCR_CTL)
arg = SD_IO_RW_FUNC(fn) | SD_IO_RW_ADR(addr);
arg = SD_IO_RW_FUNC(func_number) | SD_IO_RW_ADR(addr) |
arg = SD_IO_RW_FUNC(func_number) | SD_IO_RW_ADR(addr);