From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan Wu Subject: [PATCH 6/8] [Blackfin] EMAC driver: add power down mode Date: Wed, 30 Jan 2008 16:52:26 +0800 Message-ID: <1201683148-23931-7-git-send-email-bryan.wu@analog.com> References: <1201683148-23931-1-git-send-email-bryan.wu@analog.com> Cc: linux-kernel@vger.kernel.org, Vitja Makarov , Bryan Wu To: jeff@garzik.org, netdev@vger.kernel.org Return-path: Received: from nwd2mail10.analog.com ([137.71.25.55]:33791 "EHLO nwd2mail10.analog.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755206AbYA3Iwi (ORCPT ); Wed, 30 Jan 2008 03:52:38 -0500 In-Reply-To: <1201683148-23931-1-git-send-email-bryan.wu@analog.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Vitja Makarov This patch puts phy in power-down mode when interface is down. Also we should think about energy detect power-down mode, that will decrease power consumption when no link. Signed-off-by: Vitja Makarov Signed-off-by: Bryan Wu --- drivers/net/bfin_mac.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index e9bd059..f2368b7 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -884,10 +884,10 @@ static int bf537mac_open(struct net_device *dev) return retval; phy_start(lp->phydev); + phy_write(lp->phydev, MII_BMCR, BMCR_RESET); setup_system_regs(dev); bf537mac_disable(); bf537mac_enable(); - pr_debug("hardware init finished\n"); netif_start_queue(dev); netif_carrier_on(dev); @@ -910,6 +910,7 @@ static int bf537mac_close(struct net_device *dev) netif_carrier_off(dev); phy_stop(lp->phydev); + phy_write(lp->phydev, MII_BMCR, BMCR_PDOWN); /* clear everything */ bf537mac_shutdown(dev); -- 1.5.3.4