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net, of: fixup MAC address by alias 

If a network device has not been registered from the devicetree, we may
still find it by its alias in the devicetree. This way also platform based
network devices can obtain a valid MAC address in the devicetree.

Signed-off-by: Renaud Barbier <renaud.barbier@ge.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Renaud Barbier 2013-09-04 08:37:03 +02:00 committed by Sascha Hauer
parent da19582070
commit a78431c7fc
1 changed files with 13 additions and 11 deletions
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24
net/eth.c
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@ -273,7 +273,7 @@ static int eth_set_ethaddr(struct device_d *dev, struct param_d *param, const ch
return 0;
}
#ifdef CONFIG_OFDEVICE
#ifdef CONFIG_OFTREE
static int eth_of_fixup(struct device_node *root)
{
struct eth_device *edev;
@ -285,21 +285,23 @@ static int eth_of_fixup(struct device_node *root)
* find a nodepath for and which has a valid mac address.
*/
list_for_each_entry(edev, &netdev_list, list) {
if (!edev->nodepath) {
dev_dbg(&edev->dev, "%s: no node to fixup\n", __func__);
continue;
}
if (!is_valid_ether_addr(edev->ethaddr)) {
dev_dbg(&edev->dev, "%s: no valid mac address, cannot fixup\n",
__func__);
dev_dbg(&edev->dev,
"%s: no valid mac address, cannot fixup\n",
__func__);
continue;
}
node = of_find_node_by_path_from(root, edev->nodepath);
if (edev->nodepath) {
node = of_find_node_by_path_from(root, edev->nodepath);
} else {
char eth[12];
sprintf(eth, "ethernet%d", edev->dev.id);
node = of_find_node_by_alias(root, eth);
}
if (!node) {
dev_dbg(&edev->dev, "%s: fixup node %s not found\n",
__func__, edev->nodepath);
dev_dbg(&edev->dev, "%s: no node to fixup\n", __func__);
continue;
}