RDLAR
sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR);
sh_eth_read(ndev, RDLAR)) >> 4;
[RDLAR] = 0x0220,
add_reg(RDLAR);
[RDLAR] = 0x0020,
[RDLAR] = 0x0010,
sh_eth_write(ndev, 0, RDLAR);
[RDLAR] = 0x0030,