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Commit 0c81a8ee authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

net: bcmgenet: fix GPHY power-up sequence 



We were missing a number of extra steps and delays to power-up the GPHY, update
the sequence to reflect the proper procedure here.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8212c983

drivers/net/ethernet/broadcom/genet/bcmmii.c

+7 −3
Original line number Diff line number Diff line
@@ -179,14 +179,18 @@ static void bcmgenet_phy_power_set(struct net_device *dev, bool enable) 


	if (enable) {

		reg = bcmgenet_ext_readl(priv, EXT_GPHY_CTRL);

		reg &= ~(EXT_CFG_IDDQ_BIAS | EXT_CFG_PWR_DOWN | EXT_CK25_DIS);

		reg &= ~EXT_CK25_DIS;

		bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);

		mdelay(1);



		reg &= ~(EXT_CFG_IDDQ_BIAS | EXT_CFG_PWR_DOWN);

		reg |= EXT_GPHY_RESET;

		bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);

		mdelay(2);

		mdelay(1);



		reg &= ~EXT_GPHY_RESET;

		bcmgenet_ext_writel(priv, reg, EXT_GPHY_CTRL);

		udelay(20);

		udelay(60);

	}

}