From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan Wu Subject: [PATCH 1/4] Blackfin EMAC driver: add function to change the MAC address Date: Wed, 19 Sep 2007 23:37:04 +0800 Message-ID: <1190216224.15707.27.camel@roc-laptop> Reply-To: bryan.wu@analog.com Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit To: Jeff Garzik , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, uclinux-dist-devel@blackfin.uclinux.org, Alex Landau Return-path: Received: from nwd2mail11.analog.com ([137.71.25.57]:31641 "EHLO nwd2mail11.analog.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754936AbXISPhR (ORCPT ); Wed, 19 Sep 2007 11:37:17 -0400 Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Alex Landau Date: Wed, 19 Sep 2007 23:14:18 +0800 Subject: [PATCH] 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 Signed-off-by: Mike Frysinger Signed-off-by: Bryan Wu Acked-by: Jeff Garzik --- 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 cebe554..ead7be9 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 -- 1.5.2