+ /* Reset RDC MAC */
+ iowrite16(MAC_RST, ioaddr + MCR1);
+ while (limit--) {
+ cmd = ioread16(ioaddr + MCR1);
+ if (cmd & 0x1)
+ break;
+ }
+ /* Reset internal state machine */
+ iowrite16(2, ioaddr + MAC_SM);
+ iowrite16(0, ioaddr + MAC_SM);
+ udelay(5000);
+
+ /* MAC Bus Control Register */
+ iowrite16(MBCR_DEFAULT, ioaddr + MBCR);
+
+ /* Buffer Size Register */
+ iowrite16(MAX_BUF_SIZE, ioaddr + MR_BSR);
+
+ /* Write TX ring start address */
+ iowrite16(lp->tx_ring_dma, ioaddr + MTD_SA0);
+ iowrite16(lp->tx_ring_dma >> 16, ioaddr + MTD_SA1);
+
+ /* Write RX ring start address */