CB_SOCKET_CTRL
sockctrl = bus_space_read_4(memt, memh, CB_SOCKET_CTRL);
osock_ctrl = sock_ctrl = bus_space_read_4(memt, memh, CB_SOCKET_CTRL);
bus_space_write_4(memt, memh, CB_SOCKET_CTRL, sock_ctrl);
bus_space_write_4(memt, memh, CB_SOCKET_CTRL, sock_ctrl);