Hi Prabhakar,
> Hi All,
>
> I am seeing following type of code for MAC address write for a
> network device.
>
> net/eth-uclass.c eth_post_probe() or net/eth_legacy.c
> eth_write_hwaddr()
>
> eth_env_get_enetaddr_by_index("eth", dev->seq, env_enetaddr);
> if (!is_zero_ethaddr(env_enetaddr)) {
> if (!is_zero_ethaddr(pdata->enetaddr) &&
> memcmp(pdata->enetaddr, env_enetaddr, ARP_HLEN)) {
> printf("\nWarning: %s MAC addresses don't
> match:\n", dev->name);
> printf("Address in ROM is %pM\n",
> pdata->enetaddr);
> printf("Address in environment is %pM\n",
> env_enetaddr);
> }
>
> /* Override the ROM MAC address */
> memcpy(pdata->enetaddr, env_enetaddr, ARP_HLEN);
>
> Why ROM MAC address getting overwritten by environment env MAC
> address. MAC address is something unique and assigned to a particular
> device. So one should never change its MAC address.
> It may happen that company which uses NXP processor wants to use their own set of MAC addresses. > Please suggest. > > Regards, > Prabhakar > > _______________________________________________ > U-Boot mailing list > U-Boot@lists.denx.de > https://lists.denx.de/listinfo/u-boot Best regards, Lukasz Majewski -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
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