4xx_enet.c

		if (dev == NULL) {
			printf ("ppc_4xx_eth_initialize: "
				"Cannot allocate eth_device %d\n", eth_num);
			return (-1);
		}
		memset(dev, 0, sizeof(*dev));

		/* Allocate our private use data */
		hw = (EMAC_4XX_HW_PST) malloc (sizeof (*hw));
		if (hw == NULL) {
			printf ("ppc_4xx_eth_initialize: "
				"Cannot allocate private hw data for eth_device %d",
				eth_num);
			free (dev);
			return (-1);
		}
		memset(hw, 0, sizeof(*hw));

		hw->hw_addr = hw_addr[eth_num];
		memcpy (dev->enetaddr, ethaddr[eth_num], 6);
		hw->devnum = eth_num;
		hw->print_speed = 1;

		sprintf (dev->name, "ppc_4xx_eth%d", eth_num - CONFIG_EMAC_NR_START);
		dev->priv = (void *) hw;
		dev->init = ppc_4xx_eth_init;
		dev->halt = ppc_4xx_eth_halt;
		dev->send = ppc_4xx_eth_send;
		dev->recv = ppc_4xx_eth_rx;

		eth_register(dev);

#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
		miiphy_register(dev->name,
				emac4xx_miiphy_read, emac4xx_miiphy_write);
#endif

		if (0 == virgin) {
			/* set the MAL IER ??? names may change with new spec ??? */
#if defined(CONFIG_440SPE) || \
    defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
    defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
    defined(CONFIG_405EX)
			mal_ier =
				MAL_IER_PT | MAL_IER_PRE | MAL_IER_PWE |
				MAL_IER_DE | MAL_IER_OTE | MAL_IER_OE | MAL_IER_PE ;
#else
			mal_ier =
				MAL_IER_DE | MAL_IER_NE | MAL_IER_TE |
				MAL_IER_OPBE | MAL_IER_PLBE;
#endif
			mtdcr (MAL0_ESR, 0xffffffff);	/* clear pending interrupts */
			mtdcr (MAL0_TXDEIR, 0xffffffff);	/* clear pending interrupts */
			mtdcr (MAL0_RXDEIR, 0xffffffff);	/* clear pending interrupts */
			mtdcr (MAL0_IER, mal_ier);

			/* install MAL interrupt handler */
			irq_install_handler (VECNUM_MAL_SERR,
					     (interrupt_handler_t *) enetInt,
					     dev);
			irq_install_handler (VECNUM_MAL_TXEOB,
					     (interrupt_handler_t *) enetInt,
					     dev);
			irq_install_handler (VECNUM_MAL_RXEOB,
					     (interrupt_handler_t *) enetInt,
					     dev);
			irq_install_handler (VECNUM_MAL_TXDE,
					     (interrupt_handler_t *) enetInt,
					     dev);
			irq_install_handler (VECNUM_MAL_RXDE,
					     (interrupt_handler_t *) enetInt,
					     dev);
			virgin = 1;
		}
	}			/* end for each supported device */

	return 0;
}