EMAC driver: add power down mode (136492b2) · Commits · 戴 / test

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>

drivers/net/bfin_mac.c

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -884,10 +884,10 @@ static int bf537mac_open(struct net_device *dev)
	return retval;		return retval;

	phy_start(lp->phydev);		phy_start(lp->phydev);
			phy_write(lp->phydev, MII_BMCR, BMCR_RESET);
	setup_system_regs(dev);		setup_system_regs(dev);
	bf537mac_disable();		bf537mac_disable();
	bf537mac_enable();		bf537mac_enable();

	pr_debug("hardware init finished\n");		pr_debug("hardware init finished\n");
	netif_start_queue(dev);		netif_start_queue(dev);
	netif_carrier_on(dev);		netif_carrier_on(dev);
	@@ -910,6 +910,7 @@ static int bf537mac_close(struct net_device *dev)
	netif_carrier_off(dev);		netif_carrier_off(dev);

	phy_stop(lp->phydev);		phy_stop(lp->phydev);
			phy_write(lp->phydev, MII_BMCR, BMCR_PDOWN);

	/* clear everything */		/* clear everything */
	bf537mac_shutdown(dev);		bf537mac_shutdown(dev);

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