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| author | Alex Landau <lirsb@yahoo.com> | 2007-09-19 23:14:18 +0800 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:51:48 -0700 |
| commit | 73f83182862a2c9113421720997c75ee939902f8 (patch) | |
| tree | 96631ae7f454da57fbc1c923aa1ab3a1925df512 /drivers/net/bfin_mac.c | |
| parent | 1a7eb72b68c1c6a00a237bc242885222ab74536f (diff) | |
| download | linux-73f83182862a2c9113421720997c75ee939902f8.tar.gz linux-73f83182862a2c9113421720997c75ee939902f8.tar.bz2 linux-73f83182862a2c9113421720997c75ee939902f8.zip | |
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>
Diffstat (limited to 'drivers/net/bfin_mac.c')
| -rw-r--r-- | drivers/net/bfin_mac.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index cebe55440e13..ead7be969975 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -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 |