ARCNET: add com20020_set_hwddr to change address

This patch adds com20020_set_hwaddr to make
it possible to change the hwaddr on runtime.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/net/arcnet/com20020.c b/drivers/net/arcnet/com20020.c
index 7b96c5f47e8d..1a8437842fbc 100644
--- a/drivers/net/arcnet/com20020.c
+++ b/drivers/net/arcnet/com20020.c
@@ -149,11 +149,25 @@ int com20020_check(struct net_device *dev)
         return 0;
 }
 
+static int com20020_set_hwaddr(struct net_device *dev, void *addr)
+{
+        int ioaddr = dev->base_addr;
+        struct arcnet_local *lp = netdev_priv(dev);
+        struct sockaddr *hwaddr = addr;
+
+        memcpy(dev->dev_addr, hwaddr->sa_data, 1);
+        SET_SUBADR(SUB_NODE);
+        outb(dev->dev_addr[0], _XREG);
+
+        return 0;
+}
+
 const struct net_device_ops com20020_netdev_ops = {
         .ndo_open       = arcnet_open,
         .ndo_stop       = arcnet_close,
         .ndo_start_xmit = arcnet_send_packet,
         .ndo_tx_timeout = arcnet_timeout,
+        .ndo_set_mac_address = com20020_set_hwaddr,
         .ndo_set_rx_mode = com20020_set_mc_list,
 };