REG_PORT_MIB_CTRL_STAT__4
ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, data);
PORT_CTRL_ADDR(port, REG_PORT_MIB_CTRL_STAT__4),
ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, val);
ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4,
ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, 0);