diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/Kconfig | 8 | ||||
| -rw-r--r-- | net/eth.c | 12 |
2 files changed, 20 insertions, 0 deletions
diff --git a/net/Kconfig b/net/Kconfig index 22b9eaa..a2bd4fe 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -7,4 +7,12 @@ menuconfig NET if NET +config NET_RANDOM_ETHADDR + bool "Random ethaddr if unset" + help + Selecting this will allow the Ethernet interface to function + even when the ethaddr variable for that interface is unset. + A new MAC address will be generated on every boot and it will + not be added to the environment. + endif # if NET @@ -538,9 +538,15 @@ static int eth_post_probe(struct udevice *dev) printf("\nWarning: %s using MAC address from ROM\n", dev->name); } else if (is_zero_ethaddr(pdata->enetaddr)) { +#ifdef CONFIG_NET_RANDOM_ETHADDR + net_random_ethaddr(pdata->enetaddr); + printf("\nWarning: %s (eth%d) using random MAC address - %pM\n", + dev->name, dev->seq, pdata->enetaddr); +#else printf("\nError: %s address not set.\n", dev->name); return -EINVAL; +#endif } return 0; @@ -666,9 +672,15 @@ int eth_write_hwaddr(struct eth_device *dev, const char *base_name, printf("\nWarning: %s using MAC address from net device\n", dev->name); } else if (is_zero_ethaddr(dev->enetaddr)) { +#ifdef CONFIG_NET_RANDOM_ETHADDR + net_random_ethaddr(dev->enetaddr); + printf("\nWarning: %s (eth%d) using random MAC address - %pM\n", + dev->name, eth_number, dev->enetaddr); +#else printf("\nError: %s address not set.\n", dev->name); return -EINVAL; +#endif } if (dev->write_hwaddr && !eth_mac_skip(eth_number)) { |