ARM_SMMU_TCR_EPD0
if ((cb->tcr[0] & ARM_SMMU_TCR_EPD0))
if (!(cb->tcr[0] & ARM_SMMU_TCR_EPD0))
tcr &= ~(ARM_SMMU_TCR_EPD0 | ARM_SMMU_TCR_EPD1);
tcr |= ARM_SMMU_TCR_EPD0;