FMC2_PCR_TAR
pcr &= ~FMC2_PCR_TAR;
pcr |= FIELD_PREP(FMC2_PCR_TAR, FMC2_PCR_TAR_DEFAULT);
FMC2_PCR_TCLR | FMC2_PCR_TAR,
FIELD_PREP(FMC2_PCR_TAR, timings->tar));