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: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index 3fdbf57..c26c075 100644 (file)
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -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);
        }
 }