diff options
| author | Andrew Ruder <andrew.ruder@elecsyscorp.com> | 2013-10-22 19:09:02 -0500 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2013-11-22 17:03:19 -0600 |
| commit | c583ee16cb5db73fc299bb679ecb75a5abb3ca47 (patch) | |
| tree | 6b3963bf25765c45b3ec13eab3325f6e1c183e1c /drivers/net | |
| parent | 8712adfd0595ea68ce06fb22420489dacc3a6cc6 (diff) | |
| download | u-boot-imx-c583ee16cb5db73fc299bb679ecb75a5abb3ca47.zip u-boot-imx-c583ee16cb5db73fc299bb679ecb75a5abb3ca47.tar.gz u-boot-imx-c583ee16cb5db73fc299bb679ecb75a5abb3ca47.tar.bz2 | |
net: dm9000: random mac address support
When an unprogrammed EEPROM is attached to a dm9000, the dm9000 will
come up with a invalid MAC address of ff:ff:ff:ff:ff:ff. Add code that
gets enabled if CONFIG_RANDOM_MACADDR is enabled that generates a random
(and valid) locally administered MAC address that allows the system to
network boot until a real MAC address can be configured.
Signed-off-by: Andrew Ruder <andrew.ruder@elecsyscorp.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/dm9000x.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/dm9000x.c b/drivers/net/dm9000x.c index f7170e0..b68d808 100644 --- a/drivers/net/dm9000x.c +++ b/drivers/net/dm9000x.c @@ -342,6 +342,15 @@ static int dm9000_init(struct eth_device *dev, bd_t *bd) DM9000_iow(DM9000_ISR, ISR_ROOS | ISR_ROS | ISR_PTS | ISR_PRS); printf("MAC: %pM\n", dev->enetaddr); + if (!is_valid_ether_addr(dev->enetaddr)) { +#ifdef CONFIG_RANDOM_MACADDR + printf("Bad MAC address (uninitialized EEPROM?), randomizing\n"); + eth_random_enetaddr(dev->enetaddr); + printf("MAC: %pM\n", dev->enetaddr); +#else + printf("WARNING: Bad MAC address (uninitialized EEPROM?)\n"); +#endif + } /* fill device MAC address registers */ for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++) |