- /* Set/reset autoselect bit */
- val = pcnet_read_bcr (dev, 2) & ~2;
- val |= 2;
- pcnet_write_bcr (dev, 2, val);
-
- /* Enable auto negotiate, setup, disable fd */
- val = pcnet_read_bcr(dev, 32) & ~0x98;
- val |= 0x20;
- pcnet_write_bcr(dev, 32, val);
-
- /*
- * We only maintain one structure because the drivers will never
- * be used concurrently. In 32bit mode the RX and TX ring entries
- * must be aligned on 16-byte boundaries.
- */
- if (lp == NULL) {
- addr = (u32)malloc(sizeof(pcnet_priv_t) + 0x10);
- addr = (addr + 0xf) & ~0xf;
- lp = (pcnet_priv_t *)addr;
- }
-
- lp->init_block.mode = cpu_to_le16(0x0000);
- lp->init_block.filter[0] = 0x00000000;
- lp->init_block.filter[1] = 0x00000000;
-
- /*
- * Initialize the Rx ring.
- */
- lp->cur_rx = 0;
- for (i = 0; i < RX_RING_SIZE; i++) {
- lp->rx_ring[i].base = PCI_TO_MEM_LE(dev, lp->rx_buf[i]);
- lp->rx_ring[i].buf_length = cpu_to_le16(-PKT_BUF_SZ);
- lp->rx_ring[i].status = cpu_to_le16(0x8000);
- PCNET_DEBUG1("Rx%d: base=0x%x buf_length=0x%hx status=0x%hx\n",
- i, lp->rx_ring[i].base, lp->rx_ring[i].buf_length,
- lp->rx_ring[i].status);
- }
-
- /*
- * Initialize the Tx ring. The Tx buffer address is filled in as
- * needed, but we do need to clear the upper ownership bit.
- */
- lp->cur_tx = 0;
- for (i = 0; i < TX_RING_SIZE; i++) {
- lp->tx_ring[i].base = 0;
- lp->tx_ring[i].status = 0;
- }
-
- /*
- * Setup Init Block.
- */
- PCNET_DEBUG1("Init block at 0x%p: MAC", &lp->init_block);
-
- for (i = 0; i < 6; i++) {
- lp->init_block.phys_addr[i] = dev->enetaddr[i];
- PCNET_DEBUG1(" %02x", lp->init_block.phys_addr[i]);
- }
-
- lp->init_block.tlen_rlen = cpu_to_le16(TX_RING_LEN_BITS |
- RX_RING_LEN_BITS);
- lp->init_block.rx_ring = PCI_TO_MEM_LE(dev, lp->rx_ring);
- lp->init_block.tx_ring = PCI_TO_MEM_LE(dev, lp->tx_ring);
-
- PCNET_DEBUG1("\ntlen_rlen=0x%x rx_ring=0x%x tx_ring=0x%x\n",
- lp->init_block.tlen_rlen,
- lp->init_block.rx_ring, lp->init_block.tx_ring);
-
- /*
- * Tell the controller where the Init Block is located.
- */
- addr = PCI_TO_MEM(dev, &lp->init_block);
- pcnet_write_csr(dev, 1, addr & 0xffff);
- pcnet_write_csr(dev, 2, (addr >> 16) & 0xffff);
-
- pcnet_write_csr (dev, 4, 0x0915);
- pcnet_write_csr (dev, 0, 0x0001); /* start */
-
- /* Wait for Init Done bit */
- for (i = 10000; i > 0; i--) {
- if (pcnet_read_csr (dev, 0) & 0x0100)
- break;
- udelay(10);
- }
- if (i <= 0) {
- printf("%s: TIMEOUT: controller init failed\n", dev->name);
- pcnet_reset (dev);
- return -1;
- }