Blackfin EMAC driver: add function to change the MAC address
Alex Landau writes in the forums:
Previously, changing the MAC address (e.g. via ifconfig) resulted
in a generic function to be called that only changed a variable in
memory. This patch also updated the Blackfin MAC address registers
to filter the correct new MAC.
Signed-off-by: Alex Landau <lirsb@yahoo.com>
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
index cebe554..ead7be96 100644
--- a/drivers/net/bfin_mac.c
+++ b/drivers/net/bfin_mac.c
@@ -463,7 +463,7 @@
bfin_write_DMA1_Y_MODIFY(0);
}
-void setup_mac_addr(u8 * mac_addr)
+static void setup_mac_addr(u8 *mac_addr)
{
u32 addr_low = le32_to_cpu(*(__le32 *) & mac_addr[0]);
u16 addr_hi = le16_to_cpu(*(__le16 *) & mac_addr[4]);
@@ -473,6 +473,16 @@
bfin_write_EMAC_ADDRHI(addr_hi);
}
+static int bf537mac_set_mac_address(struct net_device *dev, void *p)
+{
+ struct sockaddr *addr = p;
+ if (netif_running(dev))
+ return -EBUSY;
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+ setup_mac_addr(dev->dev_addr);
+ return 0;
+}
+
static void adjust_tx_list(void)
{
int timeout_cnt = MAX_TIMEOUT_CNT;
@@ -876,6 +886,7 @@
dev->open = bf537mac_open;
dev->stop = bf537mac_close;
dev->hard_start_xmit = bf537mac_hard_start_xmit;
+ dev->set_mac_address = bf537mac_set_mac_address;
dev->tx_timeout = bf537mac_timeout;
dev->set_multicast_list = bf537mac_set_multicast_list;
#ifdef CONFIG_NET_POLL_CONTROLLER