netdev - [PATCH 3/5] phylib: marvell: add support for TX-only and RX-only Internal Delay

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Date:	Mon, 5 Nov 2007 12:15:43 -0600
From:	Kim Phillips <kim.phillips@...escale.com>
To:	Li Yang <leoli@...escale.com>,
	Kumar Gala <galak@...nel.crashing.org>, netdev@...r.kernel.org,
	linuxppc-dev@...abs.org
Cc:	jgarzik@...ox.com, paulus@...ba.org
Subject: [PATCH 3/5] phylib: marvell: add support for TX-only and RX-only
 Internal Delay

Previously, Internal Delay specification implied the delay be
applied to both TX and RX.  This patch allows for separate TX/RX-only
internal delay specification.

Signed-off-by: Kim Phillips <kim.phillips@...escale.com>
---
 drivers/net/phy/marvell.c |   26 +++++++++++++++++---------
 1 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index d2ede5f..55eb5c1 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -143,21 +143,29 @@ static int m88e1111_config_init(struct phy_device *phydev)
 	int err;
 
 	if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
-	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)) {
+	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
+	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
+	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
 		int temp;
 
-		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
-			temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
-			if (temp < 0)
-				return temp;
+		temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
+		if (temp < 0)
+			return temp;
 
+		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
 			temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
-
-			err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
-			if (err < 0)
-				return err;
+		} else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
+			temp &= ~MII_M1111_TX_DELAY;
+			temp |= MII_M1111_RX_DELAY;
+		} else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
+			temp &= ~MII_M1111_RX_DELAY;
+			temp |= MII_M1111_TX_DELAY;
 		}
 
+		err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
+		if (err < 0)
+			return err;
+
 		temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
 		if (temp < 0)
 			return temp;
-- 
1.5.2.2

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