TSI148_LCSR_CRAT
crat = ioread32be(bridge->base + TSI148_LCSR_CRAT);
iowrite32be(crat | TSI148_LCSR_CRAT_EN, bridge->base + TSI148_LCSR_CRAT);
crat = ioread32be(bridge->base + TSI148_LCSR_CRAT);
bridge->base + TSI148_LCSR_CRAT);