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authorBartosz Golaszewski <bgolaszewski@baylibre.com>2018-11-30 09:21:00 +0100
committerDavid S. Miller <davem@davemloft.net>2018-12-04 00:40:30 +0100
commit18dbfc81de708409ed82e95b418ef7092e91c2fb (patch)
tree83b758a883bbc0a8866e1647c7a27c676c54d64a /drivers/net/ethernet/ti
parentof: net: kill of_get_nvmem_mac_address() (diff)
downloadlinux-18dbfc81de708409ed82e95b418ef7092e91c2fb.tar.xz
linux-18dbfc81de708409ed82e95b418ef7092e91c2fb.zip
net: davinci_emac: use nvmem_get_mac_address()
All DaVinci boards still supported in board files now define nvmem cells containing the MAC address. We want to stop using the setup callback from at24 so the MAC address for those users will no longer be provided over platform data. If we didn't get a valid MAC in pdata, try nvmem before resorting to a random MAC. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ti')
-rw-r--r--drivers/net/ethernet/ti/davinci_emac.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 9153db120352..840820402cd0 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1912,11 +1912,15 @@ static int davinci_emac_probe(struct platform_device *pdev)
ether_addr_copy(ndev->dev_addr, priv->mac_addr);
if (!is_valid_ether_addr(priv->mac_addr)) {
- /* Use random MAC if none passed */
- eth_hw_addr_random(ndev);
- memcpy(priv->mac_addr, ndev->dev_addr, ndev->addr_len);
- dev_warn(&pdev->dev, "using random MAC addr: %pM\n",
- priv->mac_addr);
+ /* Try nvmem if MAC wasn't passed over pdata or DT. */
+ rc = nvmem_get_mac_address(&pdev->dev, priv->mac_addr);
+ if (rc) {
+ /* Use random MAC if still none obtained. */
+ eth_hw_addr_random(ndev);
+ memcpy(priv->mac_addr, ndev->dev_addr, ndev->addr_len);
+ dev_warn(&pdev->dev, "using random MAC addr: %pM\n",
+ priv->mac_addr);
+ }
}
ndev->netdev_ops = &emac_netdev_ops;