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authorLinus Walleij <linus.walleij@linaro.org>2022-07-09 01:55:30 +0200
committerDavid S. Miller <davem@davemloft.net>2022-07-09 13:34:18 +0200
commit877d4e3cedd18cd5a4cef7685b64af72f8322ac1 (patch)
tree2dfe8680d0a39c5d9e6ad6b996bc3f92da820783 /drivers/net/ethernet/xscale
parentixp4xx_eth: Fall back to random MAC address (diff)
downloadlinux-877d4e3cedd18cd5a4cef7685b64af72f8322ac1.tar.xz
linux-877d4e3cedd18cd5a4cef7685b64af72f8322ac1.zip
ixp4xx_eth: Set MAC address from device tree
If there is a MAC address specified in the device tree, then use it. This is already perfectly legal to specify in accordance with the generic ethernet-controller.yaml schema. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/xscale')
-rw-r--r--drivers/net/ethernet/xscale/ixp4xx_eth.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index a5d1d8d12064..3591b9edc9a1 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -29,6 +29,7 @@
#include <linux/net_tstamp.h>
#include <linux/of.h>
#include <linux/of_mdio.h>
+#include <linux/of_net.h>
#include <linux/phy.h>
#include <linux/platform_device.h>
#include <linux/ptp_classify.h>
@@ -156,7 +157,7 @@ struct eth_plat_info {
u8 phy; /* MII PHY ID, 0 - 31 */
u8 rxq; /* configurable, currently 0 - 31 only */
u8 txreadyq;
- u8 hwaddr[6];
+ u8 hwaddr[ETH_ALEN];
u8 npe; /* NPE instance used by this interface */
bool has_mdio; /* If this instance has an MDIO bus */
};
@@ -1387,6 +1388,7 @@ static struct eth_plat_info *ixp4xx_of_get_platdata(struct device *dev)
struct of_phandle_args npe_spec;
struct device_node *mdio_np;
struct eth_plat_info *plat;
+ u8 mac[ETH_ALEN];
int ret;
plat = devm_kzalloc(dev, sizeof(*plat), GFP_KERNEL);
@@ -1428,6 +1430,12 @@ static struct eth_plat_info *ixp4xx_of_get_platdata(struct device *dev)
}
plat->txreadyq = queue_spec.args[0];
+ ret = of_get_mac_address(np, mac);
+ if (!ret) {
+ dev_info(dev, "Setting macaddr from DT %pM\n", mac);
+ memcpy(plat->hwaddr, mac, ETH_ALEN);
+ }
+
return plat;
}