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net: ethernet: nb8800: Handle all 4 RGMII modes identically

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Before commit bf8f6952a2 ("Add blurb about RGMII") it was unclear
whose responsibility it was to insert the required clock skew, and
in hindsight, some PHY drivers got it wrong. The solution forward
is to introduce a new property, explicitly requiring skew from the
node to which it is attached. In the interim, this driver will handle
all 4 RGMII modes identically (no skew).

Fixes: 52dfc83012 ("net: ethernet: add driver for Aurora VLSI NB8800 Ethernet controller")
Signed-off-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marc Gonzalez 2017-07-25 14:35:03 +02:00 committed by David S. Miller
parent 80d887dbb6
commit 4813497b53
1 changed files with 4 additions and 5 deletions
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9
drivers/net/ethernet/aurora/nb8800.c
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@ -609,7 +609,7 @@ static void nb8800_mac_config(struct net_device *dev)
mac_mode |= HALF_DUPLEX;
if (gigabit) {
if (priv->phy_mode == PHY_INTERFACE_MODE_RGMII)
if (phy_interface_is_rgmii(dev->phydev))
mac_mode |= RGMII_MODE;
mac_mode |= GMAC_MODE;
@ -1268,11 +1268,10 @@ static int nb8800_tangox_init(struct net_device *dev)
break;
case PHY_INTERFACE_MODE_RGMII:
pad_mode = PAD_MODE_RGMII;
break;
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII_RXID:
case PHY_INTERFACE_MODE_RGMII_TXID:
pad_mode = PAD_MODE_RGMII | PAD_MODE_GTX_CLK_DELAY;
pad_mode = PAD_MODE_RGMII;
break;
default: