LTQ_ASC_WHBSTATE
__raw_writel(ASCWHBSTATE_CLRREN, port->membase + LTQ_ASC_WHBSTATE);
port->membase + LTQ_ASC_WHBSTATE);
port->membase + LTQ_ASC_WHBSTATE);
port->membase + LTQ_ASC_WHBSTATE);
ASCWHBSTATE_CLRROE, port->membase + LTQ_ASC_WHBSTATE);
__raw_writel(ASCWHBSTATE_SETREN, port->membase + LTQ_ASC_WHBSTATE);