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Blackfin EMAC driver: add function to change the MAC address

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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>
This commit is contained in:
Alex Landau 2007-09-19 23:14:18 +08:00 committed by David S. Miller
parent 1a7eb72b68
commit 73f8318286
1 changed files with 12 additions and 1 deletions
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13
drivers/net/bfin_mac.c
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@ -463,7 +463,7 @@ void setup_system_regs(struct net_device *dev)
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 @@ void setup_mac_addr(u8 * mac_addr)
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 @@ static int __init bf537mac_probe(struct net_device *dev)
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