DEFAULT_HDLC_ADDR
iowrite16be(DEFAULT_HDLC_ADDR, &priv->ucc_pram->haddr1);
iowrite16be(DEFAULT_HDLC_ADDR, &priv->ucc_pram->haddr2);
iowrite16be(DEFAULT_HDLC_ADDR, &priv->ucc_pram->haddr3);
iowrite16be(DEFAULT_HDLC_ADDR, &priv->ucc_pram->haddr4);