RIO_PORT_N_CTL_CSR
rval = ioread32(priv->regs + 0x100 + RIO_PORT_N_CTL_CSR(0, 0));
ext_ftr_ptr + RIO_PORT_N_CTL_CSR(0, rmap),
ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num, rmap),
ext_ftr_ptr + RIO_PORT_N_CTL_CSR(0, rmap), regval);
ext_ftr_ptr + RIO_PORT_N_CTL_CSR(port_num, rmap),
(d->phys_efptr + RIO_PORT_N_CTL_CSR(n, d->phys_rmap))