diff options
author | Florian Fainelli <f.fainelli@gmail.com> | 2015-07-16 22:51:17 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2015-07-21 03:48:14 (GMT) |
commit | c624f89121020882b3db0a33cac8daf151d2930f (patch) | |
tree | 42d4c0a8fbdac15a6389a448f930cf4ddfa10c9f /drivers/net/ethernet/broadcom/genet/bcmgenet.c | |
parent | bd4060a6108befd1110a4c6be5544c932895d18d (diff) | |
download | linux-c624f89121020882b3db0a33cac8daf151d2930f.tar.xz |
net: bcmgenet: Determine PHY type before scanning MDIO bus
Our internal GPHY might be powered off before we attempt scanning the
MDIO bus and bind a driver to it. The way we are currently determining
whether a PHY is internal or not is done *after* we have successfully
matched its driver. If the PHY is powered down, it will not respond to
the MDIO bus, so we will not be able to bind a driver to it.
Our Device Tree for GENET interfaces specifies a "phy-mode" value:
"internal" which tells if this internal uses an internal PHY or not.
If of_get_phy_mode() fails to parse the 'phy-mode' property, do an
additional manual lookup, and if we find "internal" set the
corresponding internal variable accordingly.
Replace all uses of phy_is_internal() with a check against
priv->internal_phy to avoid having to rely on whether or not
priv->phydev is set correctly.
Fixes: 1c1008c793fa4 ("net: bcmgenet: add main driver file")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/genet/bcmgenet.c')
-rw-r--r-- | drivers/net/ethernet/broadcom/genet/bcmgenet.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 2efe72f..0765654 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1724,7 +1724,7 @@ static int init_umac(struct bcmgenet_priv *priv) int0_enable |= UMAC_IRQ_TXDMA_DONE; /* Monitor cable plug/unplugged event for internal PHY */ - if (phy_is_internal(priv->phydev)) { + if (priv->internal_phy) { int0_enable |= UMAC_IRQ_LINK_EVENT; } else if (priv->ext_phy) { int0_enable |= UMAC_IRQ_LINK_EVENT; @@ -2631,7 +2631,7 @@ static int bcmgenet_open(struct net_device *dev) /* If this is an internal GPHY, power it back on now, before UniMAC is * brought out of reset as absolutely no UniMAC activity is allowed */ - if (phy_is_internal(priv->phydev)) + if (priv->internal_phy) bcmgenet_power_up(priv, GENET_POWER_PASSIVE); /* take MAC out of reset */ @@ -2650,7 +2650,7 @@ static int bcmgenet_open(struct net_device *dev) bcmgenet_set_hw_addr(priv, dev->dev_addr); - if (phy_is_internal(priv->phydev)) { + if (priv->internal_phy) { reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT); reg |= EXT_ENERGY_DET_MASK; bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT); @@ -2756,7 +2756,7 @@ static int bcmgenet_close(struct net_device *dev) free_irq(priv->irq0, priv); free_irq(priv->irq1, priv); - if (phy_is_internal(priv->phydev)) + if (priv->internal_phy) ret = bcmgenet_power_down(priv, GENET_POWER_PASSIVE); if (!IS_ERR(priv->clk)) @@ -3318,7 +3318,7 @@ static int bcmgenet_suspend(struct device *d) if (device_may_wakeup(d) && priv->wolopts) { ret = bcmgenet_power_down(priv, GENET_POWER_WOL_MAGIC); clk_prepare_enable(priv->clk_wol); - } else if (phy_is_internal(priv->phydev)) { + } else if (priv->internal_phy) { ret = bcmgenet_power_down(priv, GENET_POWER_PASSIVE); } @@ -3347,7 +3347,7 @@ static int bcmgenet_resume(struct device *d) /* If this is an internal GPHY, power it back on now, before UniMAC is * brought out of reset as absolutely no UniMAC activity is allowed */ - if (phy_is_internal(priv->phydev)) + if (priv->internal_phy) bcmgenet_power_up(priv, GENET_POWER_PASSIVE); bcmgenet_umac_reset(priv); @@ -3369,7 +3369,7 @@ static int bcmgenet_resume(struct device *d) bcmgenet_set_hw_addr(priv, dev->dev_addr); - if (phy_is_internal(priv->phydev)) { + if (priv->internal_phy) { reg = bcmgenet_ext_readl(priv, EXT_EXT_PWR_MGMT); reg |= EXT_ENERGY_DET_MASK; bcmgenet_ext_writel(priv, reg, EXT_EXT_PWR_MGMT); |