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EMAC driver: add power down mode 

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 <vitja.makarov@gmail.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Vitja Makarov 2008-01-30 16:52:26 +08:00 committed by David S. Miller
parent 6893ff1c7e
commit 136492b275
1 changed files with 2 additions and 1 deletions
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3
drivers/net/bfin_mac.c
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@ -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);