RCEC
iowrite32(RCEC_ACE_DEFAULT | RCEC_RCE, priv->addr + RCEC);
u32 val = ioread32(coma_addr + RCEC);
val = ioread32(coma_addr + RCEC);
iowrite32(val | RCEC_RCE | BIT(port), coma_addr + RCEC);